Communication method and device

Abstract

The embodiment of the invention provides a communication method and device, and the method comprises the steps that terminal equipment receives first information from network equipment, and the first information is used for indicating the configuration information of time-frequency resources; the configuration information of the time-frequency resource comprises configuration information of a first time-frequency resource and configuration information of a second time-frequency resource, the first time-frequency resource is used for interference measurement of a first geographic coverage area, and the second time-frequency resource is used for interference measurement of a second geographic coverage area; the second geographic coverage area is a partial area in the first geographic coverage area; and the terminal device performs interference measurement based on the configuration information of the time-frequency resource. By means of the method, interference measurement can be effectively achieved to solve the interference problem existing in communication, and meanwhile the resource overhead occupied in the interference measurement process can be reduced.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0002] With the widespread application and development of satellite communications, spectrum resources are being rapidly occupied and becoming increasingly scarce. In order to expand bandwidth, satellite communications have gradually begun to try to seek co-construction and sharing of spectrum resources. Among them, co-construction and sharing of spectrum resources can improve resource utilization and reduce construction costs, but it will also bring about the problem of co-frequency / adjacent frequency interference between satellites and the ground / high and low orbits.

[0003] Specifically, the interference between systems can be divided into downlink interference and uplink interference according to the signal direction. Compared with downlink interference, uplink interference has more interference sources, the aggregate interference is stronger, and there is beam-level interference in the scenario of single-satellite multi-beam (that is, different beam directions are subject to different interference). Therefore, how to effectively solve uplink interference is one of the issues that deserve attention at present. Summary of the invention

[0004] The present application proposes a communication method and device, which can effectively implement interference measurement to solve the interference problem existing in communication, and can also reduce the resource overhead occupied by the interference measurement process.

[0005] In the first aspect, the present application implements a communication method, which can be executed by a terminal device, or by a chip or chip system corresponding to the terminal device, without limitation. Taking a terminal device as an example, the specific steps of the method may include: the terminal device receives first information, and the first information is used to indicate configuration information of time-frequency resources; the configuration information of the time-frequency resources includes configuration information of the first time-frequency resources and configuration information of the second time-frequency resources, the first time-frequency resources are used for interference measurement of a first geographical coverage area, and the second time-frequency resources are used for interference measurement of a second geographical coverage area, and the second geographical coverage area is a partial area of ​​the first geographical coverage area; the terminal device performs interference measurement based on the configuration information of the time-frequency resources.

[0006] In an embodiment of the present application, the network device may be an access network device (e.g., a base station), and the terminal device is a terminal device served by the network device. For example, if the network device is a satellite base station, then the terminal device is a terminal device served by the satellite base station, and may be referred to as a satellite terminal device. In the above, the first information sent by the network device to the terminal device may be, but is not limited to, radio access control RRC information.

[0007] In addition, the first geographic coverage area and the second geographic coverage area are both within the coverage of the network device communication. The first geographic coverage area is larger than the second geographic coverage area. The first geographic coverage area may be an area covered by a wide beam emitted by the network device, and the second geographic coverage area may be an area covered by a narrow beam emitted by the network device. Therefore, in the above, the first time-frequency resource may be considered as being used for interference measurement of a wide beam, and the second time-frequency resource may also be considered as being used for interference measurement of a narrow beam.

[0008] In the present application scheme, the first information received by the terminal device is used to indicate the configuration information of the time-frequency resources, and the configuration information of the time-frequency resources includes the configuration information of the first time-frequency resources and the configuration information of the second time-frequency resources. The first time-frequency resources are used for interference measurement in the first geographical coverage area, and the second time-frequency resources are used for interference measurement in the second geographical coverage area, and the second geographical coverage area is a partial area of ​​the first geographical coverage area. Then, the terminal device can flexibly cooperate with the network device to perform interference measurement based on the configuration information of the time-frequency resources, thereby ensuring the implementation of the interference measurement and effectively reducing the resource overhead occupied by the interference measurement process.

[0009] In one possible implementation, the configuration information of the first time-frequency resource indicates that the first time-frequency resource is periodically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is semi-statically configured; then the terminal device performs interference measurement based on the configuration information of the time-frequency resource, including: performing interference measurement of the first geographical coverage area on the first time-frequency resource according to the configuration period of the first time-frequency resource; receiving MAC CE activation information, the MAC CE activation information is used to activate the second time-frequency resource; and performing interference measurement of the second geographical coverage area on the second time-frequency resource.

[0010] Through this implementation, the first time-frequency resource is periodically configured, so that the network device side can continuously track and determine the first geographical coverage area with strong interference. The second time-frequency resource is semi-statically configured, so that the network device side can flexibly activate / deactivate the second time-frequency resource according to the interference measurement result of the first geographical coverage area to perform more fine-grained interference measurement of the second geographical coverage area. In this way, the network device side can quickly determine the area with strong interference and reduce the overhead generated by beam scanning for determining the interference area.

[0011] In a possible implementation, the method further includes: the terminal device receives MAC CE deactivation information, where the MAC CE deactivation information is used to deactivate the second time-frequency resource.

[0012] Through this implementation, the second time-frequency resource is deactivated so that the terminal device can communicate normally with the network device on the second time-frequency resource.

[0013] In a possible implementation, the configuration information of the first time-frequency resource indicates that the first time-frequency resource is periodically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is non-periodically configured; then the terminal device performs interference measurement based on the configuration information of the time-frequency resource, including: performing interference measurement of the first geographical coverage area on the first time-frequency resource according to the configuration period of the first time-frequency resource; receiving first downlink control information DCI information, and the first downlink control information DCI information is used to indicate activation of the second time-frequency resource; and performing interference measurement of the second geographical coverage area on the second time-frequency resource.

[0014] Through this implementation, the first time-frequency resource is periodically configured, so that the network device side can continuously track and determine the first geographical coverage area with strong interference. The second time-frequency resource is non-periodically configured, so that the network device side can flexibly activate the second time-frequency resource according to the interference measurement result of the first geographical coverage area to perform more fine-grained interference measurement of the second geographical coverage area. In this way, the network device side can quickly determine the area with strong interference and reduce the overhead generated by beam scanning for determining the interference area.

[0015] In a possible implementation, the configuration information of the first time-frequency resource indicates that the first time-frequency resource is semi-statically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is semi-statically configured; then the terminal device performs interference measurement based on the configuration information of the time-frequency resource, including: receiving first MAC CE activation information, the first MAC CE activation information is used to activate the first time-frequency resource; on the first time-frequency resource, performing interference measurement of the first geographical coverage area; receiving first MAC CE deactivation information, the first MAC CE deactivation information is used to deactivate the first time-frequency resource; receiving second MAC CE activation information, the second MAC CE activation information is used to activate the second time-frequency resource; on the second time-frequency resource, performing interference measurement of the second geographical coverage area.

[0016] Through this implementation, the first time-frequency resource is semi-statically configured, so that the network device side can flexibly activate / deactivate the first time-frequency resource according to the time-varying characteristics of the uplink interference or the measurement requirements to perform interference measurement in the first geographical coverage area. The second time-frequency resource is also semi-statically configured, so that the network device side can flexibly activate / deactivate the second time-frequency resource according to the interference measurement results of the first geographical coverage area to perform more fine-grained interference measurement in the second geographical coverage area. Through this method, the network device side can not only quickly determine the area with strong interference, but also reduce the overhead generated by the beam scanning used to determine the interference area.

[0017] In a possible implementation, the method further includes: the terminal device receives second MAC CE deactivation information, where the second MAC CE deactivation information is used to deactivate the second time-frequency resource.

[0018] Through this implementation, the second time-frequency resource is deactivated so that the terminal device can communicate normally with the network device on the second time-frequency resource.

[0019] In a possible implementation, the configuration information of the first time-frequency resource indicates that the first time-frequency resource is semi-statically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is non-periodically configured; the terminal device performs interference measurement based on the configuration information of the time-frequency resource, including: receiving MAC CE activation information, where the MAC CE activation information is used to indicate activation of the first time-frequency resource;

[0020] Perform interference measurement of the first geographical coverage area on the first time-frequency resource; receive MAC CE deactivation information, where the MAC CE deactivation information is used to indicate deactivation of the first time-frequency resource; receive second downlink control information DCI information, where the second downlink control information DCI information is used to indicate activation of the second time-frequency resource; perform interference measurement of the second geographical coverage area on the second time-frequency resource.

[0021] Through this implementation, the first time-frequency resource is semi-statically configured, so that the network device side can flexibly activate / deactivate the first time-frequency resource according to the time-varying characteristics of the uplink interference or the measurement requirements to perform interference measurement in the first geographical coverage area. The second time-frequency resource is also non-periodically configured, so that the network device side can flexibly activate the second time-frequency resource according to the interference measurement results of the first geographical coverage area to perform more fine-grained interference measurement in the second geographical coverage area. Through this method, the network device side can quickly determine the area with strong interference and reduce the overhead generated by the beam scanning used to determine the interference area.

[0022] In one possible implementation, the configuration information of the time-frequency resource indicates that the time-frequency resource is periodically configured; the terminal device performs interference measurement based on the configuration information of the time-frequency resource, including: performing interference measurement of the first geographical coverage area and interference measurement of the second geographical coverage area on the time-frequency resource according to the period of the time-frequency resource.

[0023] Through this implementation, the time-frequency resources used for interference measurement are periodically configured, so that the network device side can use the time-frequency resources to perform interference measurement in the first geographical coverage area and the second geographical coverage area according to the configuration period of the time-frequency resources. In addition, the above-mentioned time-frequency resources are not fixedly used for interference measurement in which geographical coverage area, but the network device side flexibly uses the time-frequency resources for interference measurement in the above-mentioned two geographical coverage areas according to the requirements of interference measurement, so that not only the area with strong interference can be effectively determined, but also the signaling overhead can be effectively reduced.

[0024] In one possible implementation, the configuration information of the time-frequency resource indicates that the time-frequency resource is semi-statically configured; the terminal device performs interference measurement based on the configuration information of the time-frequency resource, including: receiving MAC-CE activation information, the MAC CE activation information is used to activate the time-frequency resource; and performing interference measurement of the first geographical coverage area and interference measurement of the second geographical coverage area on the time-frequency resource.

[0025] Through this implementation, the time-frequency resources used for interference measurement are semi-statically configured, so that the network device side can flexibly activate / deactivate the time-frequency resources according to the time-varying characteristics of the uplink interference or the measurement requirements to perform interference measurement in the first geographical coverage area and the second geographical coverage area. In addition, the above-mentioned time-frequency resources are not fixedly used for interference measurement in which geographical coverage area, but the network device side flexibly uses the time-frequency resources for interference measurement in the above-mentioned two geographical coverage areas according to the requirements of the interference measurement, so that not only the areas with strong interference can be effectively determined, but also the signaling overhead can be effectively reduced.

[0026] In a possible implementation, the method further includes: the terminal device receives MAC-CE deactivation information, where the MAC CE deactivation information is used to deactivate the time-frequency resource.

[0027] On the second aspect, the present application implements a communication method, which can be executed by a network device, or by a chip or chip system corresponding to the network device, without limitation. Taking a network device as an example, the method may specifically include: the network device generates configuration information of time-frequency resources; the configuration information of the time-frequency resources includes configuration information of a first time-frequency resource and configuration information of a second time-frequency resource, the first time-frequency resource is used for interference measurement of a first geographic coverage area, the second time-frequency resource is used for interference measurement of a second geographic coverage area, and the second geographic coverage area is a partial area of ​​the first geographic coverage area; the network device sends first information, the first information is used to indicate the configuration information of the time-frequency resource; the network device performs interference measurement based on the configuration information of the time-frequency resource.

[0028] In the embodiment of the present application, the network device may be an access network device (e.g., a base station), and the terminal device is a terminal device served by the network device. For example, if the network device is a satellite base station, then the terminal device is a terminal device served by the satellite base station, and may be referred to as a satellite terminal device. In the above, the first information sent by the network device to the terminal device may be, but is not limited to, radio access control RRC information.

[0029] In addition, the first geographic coverage area and the second geographic coverage area are both within the coverage of the network device communication. The first geographic coverage area is larger than the second geographic coverage area. The first geographic coverage area may be an area covered by a wide beam emitted by the network device, and the second geographic coverage area may be an area covered by a narrow beam emitted by the network device. Therefore, in the above, the first time-frequency resource may be considered as being used for interference measurement of a wide beam, and the second time-frequency resource may also be considered as being used for interference measurement of a narrow beam.

[0030] In the scheme of the present application, the first information sent by the network device is used to indicate the configuration information of the time-frequency resources, and the configuration information of the time-frequency resources includes the configuration information of the first time-frequency resources and the configuration information of the second time-frequency resources. The first time-frequency resources are used for interference measurement in the first geographical coverage area, and the second time-frequency resources are used for interference measurement in the second geographical coverage area, and the second geographical coverage area is a partial area in the first geographical coverage area. Then, the network device can flexibly perform interference measurement based on the configuration information of the time-frequency resources, and on the basis of ensuring the implementation of the interference measurement, it can also effectively reduce the resource overhead occupied by the interference measurement process.

[0031] In one possible implementation, the configuration information of the first time-frequency resource indicates that the first time-frequency resource is periodically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is semi-statically configured; the network device performs interference measurement based on the configuration information of the time-frequency resource, including: performing interference measurement of the first geographical coverage area on the first time-frequency resource according to the configuration period of the first time-frequency resource; after the interference measurement of the first geographical coverage area is completed, sending MAC CE activation information, the MAC CE activation information is used to activate the second time-frequency resource; performing interference measurement of the second geographical coverage area on the second time-frequency resource; after the interference measurement of the second geographical coverage area is completed, sending MAC CE deactivation information, the MAC CE deactivation information is used to deactivate the second time-frequency resource.

[0032] Through this implementation, the first time-frequency resource is periodically configured, and the network device side can continuously track and determine the first geographical coverage area with strong interference. The second time-frequency resource is semi-statically configured, and the network device side can flexibly activate / deactivate the second time-frequency resource according to the interference measurement result of the first geographical coverage area to perform more fine-grained interference measurement of the second geographical coverage area. This allows the network device side to quickly determine the area with strong interference and reduce the overhead generated by beam scanning for determining the interference area.

[0033] In a possible implementation, the configuration information of the first time-frequency resource indicates that the first time-frequency resource is periodically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is non-periodically configured; the terminal device performs interference measurement based on the configuration information of the time-frequency resource, including: performing interference measurement of the first geographical coverage area on the first time-frequency resource according to the configuration period of the first time-frequency resource; after the interference measurement of the first geographical coverage area is completed, sending first downlink control information DCI information, the first downlink control information DCI information is used to indicate activation of the second time-frequency resource; and performing interference measurement of the second geographical coverage area on the second time-frequency resource.

[0034] Through this implementation, the first time-frequency resource is periodically configured, and the network device side can continuously track and determine the first geographical coverage area with strong interference. The second time-frequency resource is non-periodically configured, and the network device side can flexibly activate the second time-frequency resource according to the interference measurement result of the first geographical coverage area to perform more fine-grained interference measurement of the second geographical coverage area. This enables the network device side to quickly determine the area with strong interference and reduce the overhead generated by beam scanning for determining the interference area.

[0035] In a possible implementation, the configuration information of the first time-frequency resource indicates that the first time-frequency resource is semi-statically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is semi-statically configured; the network device performs interference measurement based on the configuration information of the time-frequency resource, including: sending first MAC CE activation information, and the first MACCE activation information is used to activate the first time-frequency resource; performing interference measurement of the first geographical coverage area on the first time-frequency resource; after the interference measurement of the first geographical coverage area is completed, sending first MAC CE deactivation information, and the first MAC CE deactivation information is used to deactivate the first time-frequency resource; sending second MAC CE activation information, and the second MACCE activation information is used to activate the second time-frequency resource; performing interference measurement of the second geographical coverage area on the second time-frequency resource; after the interference measurement of the second geographical coverage area is completed, sending second MAC CE deactivation information, and the second MAC CE deactivation information is used to deactivate the second time-frequency resource.

[0036] Through this implementation, the first time-frequency resource is semi-statically configured, and the network device side can flexibly activate / deactivate the first time-frequency resource according to the time-varying characteristics of the uplink interference or the measurement requirements to perform interference measurement in the first geographical coverage area. The second time-frequency resource is also semi-statically configured, and the network device side can flexibly activate / deactivate the second time-frequency resource according to the interference measurement results of the first geographical coverage area to perform more fine-grained interference measurement in the second geographical coverage area. Through this method, the network device side can not only quickly determine the area with strong interference, but also reduce the overhead generated by the beam scanning used to determine the interference area.

[0037] In one possible implementation, the configuration information of the first time-frequency resource indicates that the first time-frequency resource is semi-statically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is non-periodically configured; the network device performs interference measurement based on the configuration information of the time-frequency resource, including: sending MAC CE activation information, and the MAC CE activation information is used to indicate the activation of the first time-frequency resource; performing interference measurement of the first geographical coverage area on the first time-frequency resource; after the interference measurement of the first geographical coverage area is completed, sending MAC CE deactivation information, and the MAC CE deactivation information is used to indicate the deactivation of the first time-frequency resource; sending second downlink control information DCI information, and the second downlink control information DCI information is used to indicate the activation of the second time-frequency resource; and performing interference measurement of the second geographical coverage area on the second time-frequency resource.

[0038] Through this implementation, the first time-frequency resource is semi-statically configured, and the network device side can flexibly activate / deactivate the first time-frequency resource according to the time-varying characteristics of the uplink interference or the measurement requirements to perform interference measurement in the first geographical coverage area. The second time-frequency resource is also non-periodically configured, and the network device side can flexibly activate the second time-frequency resource according to the interference measurement results of the first geographical coverage area to perform more fine-grained interference measurement in the second geographical coverage area. Through this method, the network device side can not only quickly determine the area with strong interference, but also reduce the overhead generated by the beam scanning used to determine the interference area.

[0039] In one possible implementation, the configuration information of the time-frequency resource indicates that the time-frequency resource is periodically configured; the network device performs interference measurement based on the configuration information of the time-frequency resource, including: performing interference measurement of the first geographic coverage area according to the configuration period of the time-frequency resource; after the interference measurement of the first geographic coverage area is completed, performing interference measurement of the second geographic coverage area.

[0040] Through this implementation, the time-frequency resources used for interference measurement are periodically configured, and the network device side can use the time-frequency resources to perform interference measurement in the first geographical coverage area and the second geographical coverage area according to the configuration period of the time-frequency resources. In addition, the above-mentioned time-frequency resources are not fixedly used for interference measurement in which geographical coverage area, but the network device side flexibly uses the time-frequency resources for interference measurement in the above-mentioned two geographical coverage areas according to the requirements of interference measurement, so that not only the area with strong interference can be effectively determined, but also the signaling overhead can be effectively reduced.

[0041] In one possible implementation, the configuration information of the time-frequency resource indicates that the time-frequency resource is semi-statically configured; the network device performs interference measurement based on the configuration information of the time-frequency resource, including: sending MAC CE activation information, the MAC CE activation information is used to activate the time-frequency resource; on the time-frequency resource, perform interference measurement of the first geographical coverage area; after the interference measurement of the first geographical coverage area is completed, perform interference measurement of the second geographical coverage area; after the interference measurement of the second geographical coverage area is completed, send MAC CE deactivation information, the MAC CE deactivation information is used to deactivate the time-frequency resource.

[0042] Through this implementation, the time-frequency resources used for interference measurement are semi-statically configured, and the network device side can flexibly activate / deactivate the time-frequency resources according to the time-varying characteristics of the uplink interference or the measurement requirements to perform interference measurement in the first geographical coverage area and the second geographical coverage area. In addition, the above-mentioned time-frequency resources are not fixedly used for interference measurement in which geographical coverage area, but the network device side flexibly uses the time-frequency resources therein for interference measurement in the above-mentioned two geographical coverage areas according to the requirements of the interference measurement, so that not only the area with strong interference can be effectively determined, but also the signaling overhead can be effectively reduced.

[0043] In one possible implementation, the network device performs interference measurement of the first geographic coverage area, which may include: transmitting at least one wide beam, and receiving an uplink signal through the at least one wide beam; each wide beam corresponds to one first geographic coverage area, and the first geographic coverage area corresponding to the at least one wide beam is located within the ground area covered by the network device and does not overlap with each other; counting the uplink signal power corresponding to each wide beam; and taking the first geographic coverage area corresponding to the wide beam whose uplink signal power reaches a preset first threshold as the first interference area.

[0044] Through this implementation, a larger coverage geographical area with greater interference may be effectively determined.

[0045] In one possible implementation, the network device performs interference measurement of the second geographic coverage area, which may include: transmitting at least one narrow beam to the first interference area, and receiving an uplink signal through the at least one narrow beam; each narrow beam corresponds to one second geographic coverage area, and the second geographic coverage areas corresponding to the at least one narrow beam do not overlap with each other; counting the uplink signal power corresponding to each narrow beam; and taking the second geographic coverage area corresponding to the narrow beam whose uplink signal power reaches a preset second threshold as a target interference area.

[0046] Through this implementation, the geographical coverage area with greater interference can be determined in a more fine-grained manner from the larger coverage geographical area with greater interference.

[0047] In the third aspect, an embodiment of the present application also provides a communication device, which can be used to execute the method of the first aspect. The device may be a terminal device, or the device may be a component in the terminal device (for example, a chip, or a chip system, or a circuit), or may be a device that can be used in combination with the terminal device.

[0048] In one possible implementation, the device may include a module or unit corresponding to the method / operation / step / action described in the first aspect, and the module or unit may be a hardware circuit, or software, or a combination of a hardware circuit and software. In one possible implementation, the device may include a processing unit (also referred to as a processing module) and a communication unit (also referred to as a communication module), wherein the communication unit may be used to perform the functions of receiving and / or sending, and the processing unit may be used to perform the method described in the first aspect or any possible implementation of the first aspect.

[0049] In a fourth aspect, an embodiment of the present application further provides a communication device, which can be used to execute the method of the second aspect. The device may be a network device, or the device may be a component in the network device (for example, a chip, or a chip system, or a circuit), or may be a device that can be used in conjunction with the network device.

[0050] In one possible implementation, the device may include a module or unit corresponding to the method / operation / step / action described in the second aspect, and the module or unit may be a hardware circuit, or software, or a combination of a hardware circuit and software. In one possible implementation, the device may include a processing unit (also referred to as a processing module) and a communication unit (also referred to as a communication module), wherein the communication unit may be used to perform the functions of receiving and / or sending, and the processing unit may be used to perform the method described in the second aspect or any possible implementation of the second aspect.

[0051] In a fifth aspect, an embodiment of the present application provides a device, which includes: at least one processor and a communication interface; wherein the communication interface is used to communicate with other devices; the processor is used to run a set of programs so that the device can implement the method provided in the above-mentioned first aspect or any possible implementation manner thereof; or so that the device can implement the method provided in the above-mentioned second aspect or any possible implementation manner thereof.

[0052] In a sixth aspect, an embodiment of the present application further provides a computer storage medium, which stores a software program. When the software program is read and executed by one or more processors, it can implement the method provided by the above-mentioned first aspect or any possible implementation method thereof, or implement the method provided by the above-mentioned second aspect or any possible implementation method thereof.

[0053] In the seventh aspect, an embodiment of the present application also provides a computer program product comprising instructions, which, when executed on a computer, enables the method provided by the first aspect or any possible implementation method thereof to be executed, or enables the method provided by the second aspect or any possible implementation method thereof to be executed, or enables the method provided by the third aspect or any possible implementation method thereof to be executed.

[0054] In an eighth aspect, an embodiment of the present application provides a communication system, including a terminal device capable of implementing the method provided in the first aspect above, and a network device capable of implementing the method provided in the second aspect above.

[0055] In the ninth aspect, an embodiment of the present application also provides a chip system, which includes a processor for supporting a terminal device to implement the functions involved in the above-mentioned first aspect; or for supporting a network device to implement the functions involved in the above-mentioned second aspect.

[0056] In a possible design, the chip system further includes a memory, which is used to store necessary program instructions and data executed by the loading device. The chip system can be composed of chips or include chips and other discrete devices.

[0057] It should be noted that the technical effects that can be achieved by any possible implementation method of the above-mentioned third to ninth aspects or the third to ninth aspects can be correspondingly described with reference to the technical effects that can be achieved by any possible implementation method of the above-mentioned first to second aspects or the first to second aspects; they will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 A schematic diagram of a typical scenario of providing user equipment access to an NTN network in this application;

[0059] Figure 2 A schematic diagram of a typical scenario of providing user equipment access to another NTN network in this application;

[0060] Figure 3 A schematic diagram of downlink interference in this application;

[0061] Figure 4 A schematic diagram of uplink interference in this application;

[0062] Figure 5 Schematic diagram of the interference scenario between LEO satellite and ground cellular in this application;

[0063] Figure 6 A schematic diagram of the interference scenario between a low-orbit satellite and a high-orbit satellite in this application;

[0064] Figure 7A schematic diagram of a frame structure in this application;

[0065] Figure 8 A schematic diagram of the architecture of a mobile communication system used in an embodiment of the present application;

[0066] Fig. 9 A flow chart of a communication method provided in an embodiment of the present application;

[0067] Fig.10 A measurement schematic diagram for determining an interference area provided in an embodiment of the present application;

[0068] Fig.11A A schematic diagram of configuration mode 1 provided in an embodiment of the present application;

[0069] Fig. 11B This is a schematic diagram of configuration mode 2 provided in an embodiment of the present application;

[0070] Fig. 12A This is a schematic diagram of configuration method 3 provided in an embodiment of the present application;

[0071] Fig. 12B A schematic diagram of configuration mode 4 provided in an embodiment of the present application;

[0072] Fig.13A A schematic diagram of configuration mode 5 provided in an embodiment of the present application;

[0073] Fig. 13B A schematic diagram of configuration mode 6 provided in an embodiment of the present application;

[0074] Fig.14 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0075] Fig.15 A schematic diagram of the structure of another communication device provided in an embodiment of the present application;

[0076] Fig.16 A schematic diagram of the structure of a chip provided in an embodiment of the present application. DETAILED DESCRIPTION

[0077] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be used as limitations on the present application. As used in the specification and the appended claims of the present application, the singular expressions "one", "a kind", "said", "above", "the" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the embodiments of the present application, "one or more" refers to one, two or more; "and / or" describes the association relationship of associated objects, indicating that three relationships may exist; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0078] References to "one embodiment" or "some embodiments" described in this specification mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. The terms "including", "comprising", "having" and their variations involved in this application all mean "including but not limited to", unless otherwise specifically emphasized in other ways. Words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions, and any embodiment or design described as "exemplary" or "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. The use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

[0079] The multiple involved in the embodiments of the present application refers to greater than or equal to two. It should be noted that in the description of the embodiments of the present application, the words "first" and "second" are only used to distinguish the purpose of description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order. In addition, the term "used for indication" mentioned in the description of the embodiments of the present application can include being used for direct indication and being used for indirect indication. When describing that a certain indication information is used to indicate A, it can include that the indication information directly indicates A or indirectly indicates A, and it does not mean that the indication information must carry A.

[0080] In order to better understand the solutions provided by the embodiments of the present application, the terms (words), concepts, and processes involved in the embodiments of the present application are explained below. It should be noted that these explanations are intended to make the embodiments of the present application easier to understand and should not be regarded as limiting the scope of protection claimed by the present application.

[0081] 1. NTN:

[0082] NTN refers to a network that uses radio frequency resources on satellites (or unmanned aircraft system (UAS) platforms, high altitude platform station (HAPS) platforms). Compared with ground cellular networks (for example, 5th-generation mobile communication technology (5G)), NTN networks have the characteristics of wide coverage, low latency, broadband and low cost. As a supplement and extension of ground cellular networks, NTN networks can achieve wide-area seamless coverage that neither wired telephone networks nor ground mobile communication networks can achieve, effectively solving the problem of Internet access in areas with insufficient communication infrastructure. A large number of satellites are deployed in low-Earth orbit, and the round-trip transmission delay of data between satellites and ground terminal equipment is greatly reduced, reaching a low latency of tens of milliseconds. The use of technologies such as high frequency bands, multi-spot beams and frequency reuse has significantly improved the communication capabilities of satellites, reduced the unit broadband cost, and can meet the needs of high information rate services. Compared with communication infrastructure such as ground cellular base stations and submarine optical fiber cables, NTN has significant cost advantages. Modern small satellites have low R&D and manufacturing costs, and software-defined technology can further extend the service life of satellites in orbit. NTN networks can be used in scenarios such as global coverage (such as remote areas, ocean-going ships, etc.), emergency relief (such as disaster monitoring, emergency communications), the Internet of Everything, and high-speed mobility (such as high-speed rail and airplanes).

[0083] The 3rd Generation Partnership Project (3GPP) started to conduct satellite-ground integration research in R14, discussed the role and advantages of satellite in 5G system in TS22.261, and stipulated for the first time that 5G supports satellite access. In R15, the first 5G and satellite integration technical report TR 38.811 was formed, which defined 8 eMBB scenarios and 2 massive machine-type communications (mMTC) scenarios, and defined the channel model of NTN. R16 further studied the architecture and solutions of NR supporting NTN in TR 38.821. Based on the research results of R16, the standardization work of 5G new air interface supporting NTN was launched in R17, and the first version of the integration technical specification was formed. R18 will continue the enhancement research of NTN.

[0084] Typical scenarios for NTN networks to provide user equipment access include transparent payload and regenerative payload. In the transparent payload scenario, there is no baseband demodulation, decoding, etc. on the satellite, so the signal waveform remains unchanged and is repeated, such as Figure 1 In the regenerative payload scenario, the satellite (or UAS platform) has all or part of the base station functions (e.g., gNB), such as Figure 2 It should be noted that Figure 1 and Figure 2 It is only an example of an NTN scenario. The NTN scenario may also include other specific scenarios, which are not limited in this application.

[0085] NTN networks usually have the following elements:

[0086] 1. There are one or more gateways connecting the NTN network and the public data network.

[0087] 2. Feeder link: The wireless link between the gateway and the satellite (or UAS platform).

[0088] 3. Service link: The wireless link between the terminal device and the satellite (or UAS platform).

[0089] 4. Satellites (or UAS platforms) that can achieve transparent payloads and regenerative payloads.

[0090] 5. Whether the satellite constellation has an inter-satellite link (ISL) is optional. If there is an ISL, the satellite is a regenerative payload. ISL can operate in radio frequency (RF) frequency or optical band.

[0091] 6. The terminal device is served by a satellite (or UAS platform) within the target service area.

[0092] 2. Beam:

[0093] Beam: A beam is a communication resource. A beam can be a wide beam, a narrow beam, or other types of beams.

[0094] A wide beam refers to the form in which the wavefront of an electromagnetic wave is broadened when it is transmitted in space. In order to achieve wide-beam communication, a wide-beam antenna is required. The characteristics of a wide beam are that the beam has a large angle, a wide coverage area, and a short transmission distance. It is suitable for transmitting signals in a wide direction. However, the signal strength of a wide beam is weak, and it is susceptible to interference and attenuation. The transmission rate is slow, and it is not suitable for high-speed data transmission and high-density user scenarios.

[0095] Narrow beam refers to the concentrated wavefront form of electromagnetic waves when they are transmitted in space. In order to achieve narrow beam communication, narrow beam antennas are required. The characteristics of narrow beams are small beam angles, narrow coverage, and long transmission distances. Due to the strong signal strength and fast transmission rate, they are suitable for high-speed data transmission and high-density user scenarios.

[0096] The technology for forming a beam may be a beamforming technology or other technical means. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, a hybrid digital / analog beamforming technology, etc. Different beams may be considered as different communication resources, and the same information or different information may be sent through different beams. Optionally, multiple beams with the same or similar communication characteristics may be regarded as one beam, and one beam may include one or more antenna ports for transmitting data channels, control channels, and detection signals, etc. For example, a transmit beam may refer to a signal strength distribution formed in different directions of space after a signal is transmitted through an antenna, and a receive beam may refer to a signal strength distribution in different directions of space received from an antenna. It is understandable that one or more antenna ports forming a beam may also be regarded as an antenna port set, a beam may also be referred to as a spatial filer, a transmit beam may also be referred to as a spatial transmit filter, and a receive beam may also be referred to as a spatial receive filter.

[0097] In addition, in the embodiment of the present application, the terminal and the network device receive or send signals through beams. Specifically, the beam can be divided into a receiving beam and a transmitting beam according to the direction of signal reception or transmission. Among them, the receiving beam is used to receive signals, and the transmitting beam is used to send signals. For example, the network device uses a transmitting beam to send a downlink signal, and the terminal device uses a receiving beam to receive a downlink signal. For another example, the terminal device uses a transmitting beam to send an uplink signal, and the network device uses a receiving beam to receive an uplink signal. The transmitting beam used by the terminal device and the receiving beam used by the network device constitute a beam pair, and the receiving beam used by the terminal device and the transmitting beam used by the network device also constitute a beam pair.

[0098] It should be noted that, for a terminal device, a receiving beam can also be referred to as a downlink beam, and a transmitting beam can also be referred to as an uplink beam. The receiving beam used by a terminal device to receive a downlink signal can also be referred to as a downlink working beam, and the transmitting beam used by a terminal device to send an uplink signal can also be referred to as an uplink working beam. When the terminal device supports beam reciprocity capability, the terminal device can determine an uplink working beam based on a downlink working beam, or determine a downlink working beam based on an uplink working beam.

[0099] 3. Satellite spectrum:

[0100] Satellite communication works in the microwave frequency band, which has a frequency range of 1GHz to 40GHz. According to the frequency band, it can be divided into: L, S, C, X, Ku, K, Ka. Different frequency bands have different uses. Among them, the K band is not suitable for satellite communication because it is in the frequency window with the greatest impact of atmospheric absorption loss. Therefore, the commonly used satellite communication frequency bands are: L, S, C, X, Ku, Ka.

[0101] The L and S bands are used for satellite mobile communications, i.e., common handheld satellite phones. The C band has a relatively low frequency, so the signal coverage is large and is less affected by weather. It is often used for private network communications and cross-border dedicated lines of government and enterprises, as well as content distribution of TV stations. The X band is a regulated band, usually used by government and military departments, and cannot be used for civilian and commercial purposes. The Ku band has a relatively high frequency and is easily affected by the antenna, causing signal fluctuations, but its signal strength is higher than that of the C band, so the aperture of the ground receiving antenna is much smaller, usually as small as 0.35 meters in diameter, which is very suitable for satellite TV live broadcast to homes. The Ka band has been put into use in recent years. Since the C and Ku bands are almost saturated and cannot carry more services, the search for a higher-frequency Ka band has begun.

[0102] The higher the frequency band, the more bandwidth resources it has and the more business capacity it can support. With the surge in demand for satellite Internet access in recent years, people have begun to turn their attention to the higher-frequency Ka band. Although it is more susceptible to weather than the Ku band, its larger working bandwidth, higher signal strength, and smaller antenna aperture make it more valuable for development. Common satellite communication frequency bands and their main uses are shown in Table 1.

[0103] Table 1

[0104]

[0105] For frequency range (FR) 1, the frequency range and band number of NTN are shown in Table 2.

[0106] Table 2 3GPP NTN frequency band (FR1)

[0107]

[0108] For frequency bands above 10 GHz, the frequency range and band number of NTN are shown in Table 3.

[0109] Table 3 3GPP NTN frequency band (FR2)

[0110]

[0111] 4. Interference between systems:

[0112] Spectrum co-construction and sharing can improve resource utilization and reduce construction costs, but there will be problems of inter-system interference, such as co-frequency / adjacent-frequency interference between satellites and ground / high and low orbits. Usually, inter-system interference can be divided into downlink interference and uplink interference according to the signal direction.

[0113] Downlink interference has the following characteristics:

[0114] 1. Few interference sources. Take low-orbit satellites interfering with ground terminal equipment as an example. Figure 3 As shown in the figure, the main interference source is satellite 1 covering this terminal device. The interference of satellite 2 to this terminal device mainly comes from the side lobe, and the path loss is larger, so the interference level is lower.

[0115] 2. Since ground base stations / low-orbit satellites are closer to terminal devices, the interference is stronger.

[0116] Uplink interference has the following characteristics:

[0117] 1. Multiple interference sources: Take the case of ground terminal equipment interfering with low-orbit satellites, such as Figure 4 As shown, the interference sources are all ground terminal devices within the visible range of the satellite;

[0118] 2 Aggregate interference is strong: The main interference source is the terminal equipment near the main lobe of the satellite beam, and the satellite receiving gain is large at this time;

[0119] 3. Beam level: For a single satellite with multiple beams, different beam directions of the satellite are subject to different interferences;

[0120] 4. Frequency selection characteristics: The interference signal presents different interference characteristics in different frequency bands;

[0121] 5. Time-varying characteristics: The interference signal presents different interference characteristics at different times.

[0122] Inter-system interference can be divided into satellite-to-ground interference and high-orbit and low-orbit interference according to the interference scenario.

[0123] (1) Satellite-to-ground interference

[0124] Since there are a large number of base stations and terminal devices in the ground cellular network, and LEO satellites are closer to the ground and have less path loss, interference is likely to occur between LEO satellites and ground cellular networks. Figure 5 As shown, the solid line segment represents the valid signal, the dotted line segment represents the interference signal, and the arrow represents the signal direction.

[0125] As shown in Table 4, interference situations can be divided into the following six categories.

[0126] Table 4 Classification of satellite-to-ground interference

[0127]

[0128] (2) Interference between high and low orbits

[0129] High-orbit satellites cover a large area, and the coverage of low-orbit satellites will overlap with that of high-orbit satellites. Since low-orbit satellites have less path loss, interference is more likely to occur between high-orbit satellites and low-orbit satellites. Figure 6 As shown, the solid line segment represents the valid signal, the dotted line segment represents the interference signal, and the arrow represents the signal direction.

[0130] As shown in Table 5, interference situations can be divided into the following four categories.

[0131] Table 5 Classification of high and low orbit interference

[0132] The interfered party Interference Sources of interference LEO Satellites GEO Satellite Terminal Terminal power leakage GEO Satellite LEO Satellite Terminal Terminal power leakage LEO Satellite Terminal GEO Satellite Satellite power leakage GEO Satellite Terminal LEO Satellites Satellite power leakage

[0133] In order to measure uplink interference, a method for filtering interference signals is currently proposed. The method is divided into two stages: sounding periods and signaling periods. During the sounding periods, the satellite terminal does not send signals, the satellite base station receives the interference signal and forms a sounding base signal, and during the signaling periods, the satellite base station receives the signal and filters out the interference signal to form a valid signal. Taking the GSM frame structure as an example, Figure 7 As shown in the figure, time slot 0 is the Sounding period, which is used to measure uplink interference, and time slots 1 to 7 are Sounding periods. The satellite base station receives the signal sent by the satellite terminal and filters out the interference signal to obtain a valid signal. Among them, time slot 0 occupies all the frequency domain resources during this period, which is a serious waste of resources. Assuming that the frequency domain resources in time slots 1 to 7 are all used for data scheduling, the time-frequency domain resources are wasted by 1 / 8≈12.5%.

[0134] In view of the above problems, an embodiment of the present application proposes a communication method, which can effectively solve the problem of waste of time and frequency resources caused by measuring uplink interference.

[0135] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (LTE) system, 5G system or new radio (NR), non-terrestrial networks (NTN) and future communication systems, such as the sixth generation mobile communication system, etc. The present application is not limited to this.

[0136] Figure 8A possible, non-limiting communication system architecture applicable to the embodiments of the present application is shown. Figure 8 As shown, the communication system 800 may include at least one access network device (such as Figure 8 110a, 110b, 110c), and may also include at least one terminal device (such as Figure 8 120a-120g in FIG. 120b). The access network devices may be connected to each other via wired or wireless means. Figure 8 This is just a schematic diagram, and the communication system may also include other communication devices, such as wireless relay equipment and wireless backhaul equipment.

[0137] The network device provided in the embodiment of the present application may be an access network device, such as a base station, a Node B, an evolved Node B (eNodeB or eNB), a transmission reception point (TRP), a next generation Node B (gNB) in a fifth generation (5G) mobile communication system, an access network device in an open radio access network (O-RAN or open RAN), a next generation base station in a sixth generation (6G) mobile communication system, or a base station in a future mobile communication system, or an access node in a wireless fidelity (WiFi) system, etc. Alternatively, the network device may be a module or unit that performs part of the functions of a base station, for example, a centralized unit (CU), a distributed unit (DU), a centralized unit control plane (CU control plane, CU-CP) module, or a centralized unit user plane (CU user plane, CU-UP) module, etc. The network device may be a satellite (such as Figure 8 110a), or a macro base station (such as Figure 8 110b), or a micro base station or an indoor station (such as Figure 8 110c), it may also be a relay node or a donor node, etc. The specific communication technology and specific device form adopted by the network device are not limited in this application. For the convenience of description, the following description is taken as an example.

[0138] It should be noted that in different systems, CU (or CU-CP and CU-UP), or DU may have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (O-RAN) system, CU may also be referred to as O-CU (open CU), DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, CU-UP may also be referred to as O-CU-UP, and RU may also be referred to as O-RU. For the convenience of description, this application takes CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit in the CU (or CU-CP and CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0139] The terminal device provided in the embodiment of the present application may also be referred to as a terminal, including but not limited to: user equipment (UE), mobile station, or mobile terminal. The terminal device can be widely used in various scenarios for communication. The scenario includes, for example, but is not limited to at least one of the following scenarios: enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), massive machine-type communications (mMTC), device-to-device (D2D), vehicle to everything (V2X), machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, or smart city. The terminal device can be a mobile phone (such as Figure 8 Mobile phones 120a, 120d, 120f), tablet computers, computers with wireless transceiver functions (such as Figure 8 Computers 120g in the market), wearable devices, vehicles (such as Figure 8 120b), drones, helicopters, airplanes (such as Figure 8 120c in ), ships, robots, robotic arms, or smart home devices (such as Figure 8 The present application does not limit the specific communication technology and specific device form adopted by the terminal device. For the convenience of description, the following description is made by taking the terminal device as an example.

[0140] The network equipment and / or terminal equipment can be fixed or movable. The network equipment and / or terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; or can be deployed on the water surface; or can be deployed on aircraft, balloons and artificial satellites in the air. This application does not limit the environment / scenario in which the network equipment and terminal equipment are located. The network equipment and terminal equipment can be deployed in the same or different environments / scenarios, for example, the network equipment and terminal equipment are deployed on land at the same time; or, the network equipment is deployed on land and the terminal equipment is deployed on the water surface, etc., and examples are not given one by one.

[0141] The technical solution of the present application is introduced below in conjunction with specific embodiments.

[0142] The present invention provides a communication method which is applicable to but not limited to Figure 8 The communication system shown. The method can be executed by a terminal device, a network device, or can be executed by a component (module, chip, etc.) in the terminal device or the network device, or can be executed by a device corresponding to the terminal device or the network device. The embodiment of the present application does not specifically limit the specific form and quantity of the terminal device and the network device. Please refer to Fig. 9 As shown, the specific process of this method is as follows:

[0143] S901: A network device sends first information to a terminal device, where the first information is used to indicate configuration information of time-frequency resources.

[0144] Correspondingly, the terminal device receives the first information from the network device.

[0145] In an embodiment of the present application, the network device may be an access network device (e.g., a base station), and the terminal device is a terminal device served by the network device. For example, if the network device is a satellite base station, then the terminal device is a terminal device served by the satellite base station, and may be referred to as a satellite terminal device. In the above, the first information sent by the network device to the terminal device may be, but is not limited to, radio access control RRC information.

[0146] In the above, the configuration information of the time-frequency resources includes configuration information of the first time-frequency resources and configuration information of the second time-frequency resources, the first time-frequency resources are used for interference measurement of the first geographical coverage area, the second time-frequency resources are used for interference measurement of the second geographical coverage area, and the second geographical coverage area is a partial area of ​​the first geographical coverage area.

[0147] In the embodiment of the present application, the first geographic coverage area and the second geographic coverage area are both within the range covered by the network device communication. The first geographic coverage area is larger than the second geographic coverage area, and the first geographic coverage area may be an area covered by a wide beam transmitted by the network device, and the second geographic coverage area may be an area covered by a narrow beam transmitted by the network device. Therefore, in the above, the first time-frequency resource can be considered as being used for interference measurement of a wide beam, and the second time-frequency resource can also be considered as being used for interference measurement of a narrow beam.

[0148] In one implementation, before the network device sends the first message to the terminal device, the network device generates configuration information of the time-frequency resource.

[0149] In the embodiment of the present application, the configuration information of the first time-frequency resource is used to indicate the configuration mode of the first time-frequency resource, and the configuration information of the second time-frequency resource is used to indicate the configuration mode of the second time-frequency resource. Therefore, the configuration modes indicated by the configuration information of the first time-frequency resource and the configuration information of the second time-frequency resource may include but are not limited to the following:

[0150] Configuration method 1: the configuration information of the first time-frequency resource indicates that the first time-frequency resource is periodically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is semi-statically configured.

[0151] Configuration method two: the configuration information of the first time-frequency resource indicates that the first time-frequency resource is periodically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is non-periodically configured.

[0152] Configuration method three: the configuration information of the first time-frequency resource indicates that the first time-frequency resource is semi-statically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is semi-statically configured.

[0153] Configuration mode four: the configuration information of the first time-frequency resource indicates that the first time-frequency resource is semi-statically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is non-periodically configured.

[0154] Configuration mode five: the configuration information of the time-frequency resource indicates that the time-frequency resource is periodically configured.

[0155] Configuration mode six: the configuration information of the time-frequency resource indicates that the time-frequency resource is semi-statically configured.

[0156] S902: The network device and the terminal device perform interference measurement based on the configuration information of the time-frequency resources.

[0157] For the above-mentioned configuration method 1, the network device and the terminal device perform interference measurement based on the configuration information of the time-frequency resource, which may include: first, according to the configuration period of the first time-frequency resource, perform interference measurement of the first geographical coverage area on the first time-frequency resource. Then, after the interference measurement of the first geographical coverage area is completed, the network device sends MAC CE activation information to the terminal device, and the MAC CE activation information is used to activate the second time-frequency resource; then, the network device performs interference measurement of the second geographical coverage area on the second time-frequency resource; further, after the interference measurement of the second geographical coverage area is completed, the network device sends MAC CE deactivation information to the terminal device, and the MAC CE deactivation information is used to deactivate the second time-frequency resource.

[0158] For the above-mentioned configuration method two, the network device and the terminal device perform interference measurement based on the configuration information of the time-frequency resource, which may include: first, according to the configuration period of the first time-frequency resource, performing interference measurement of the first geographical coverage area on the first time-frequency resource; after the network device completes the interference measurement of the first geographical coverage area, sending first downlink control information DCI information to the terminal device, and the first downlink control information DCI information is used to indicate the activation of the second time-frequency resource; and then the network device and the terminal device can perform interference measurement of the second geographical coverage area on the second time-frequency resource.

[0159] For the above configuration mode three, the network device and the terminal device perform interference measurement based on the configuration information of the time-frequency resource, which may include: the network device sends first MAC CE activation information to the terminal device, where the first MAC CE activation information is used to activate the first time-frequency resource; and perform interference measurement of the first geographical coverage area on the first time-frequency resource;

[0160] After completing the interference measurement of the first geographical coverage area, the network device sends a first MAC CE deactivation message to the terminal device, and the first MAC CE deactivation message is used to deactivate the first time-frequency resource; then, the network device sends a second MAC CE activation message to the terminal device, and the second MAC CE activation message is used to activate the second time-frequency resource; then, the network device and the terminal device can perform interference measurement of the second geographical coverage area on the second time-frequency resource; finally, after completing the interference measurement of the second geographical coverage area, the network device sends a second MAC CE deactivation message to the terminal device, and the second MAC CE deactivation message is used to deactivate the second time-frequency resource.

[0161] For the fourth configuration mode, the network device and the terminal device perform interference measurement based on the configuration information of the time-frequency resource, which may include:

[0162] The network device sends MAC CE activation information to the terminal device, and the MAC CE activation information is used to indicate the activation of the first time-frequency resource; then the network device and the terminal device perform interference measurement of the first geographical coverage area on the first time-frequency resource; after the interference measurement of the first geographical coverage area is completed, the network device sends MAC CE deactivation information to the terminal device, and the MAC CE deactivation information is used to indicate the deactivation of the first time-frequency resource; further, the network device sends second downlink control information DCI information to the terminal device, and the second downlink control information DCI information is used to indicate the activation of the second time-frequency resource; and then the network device and the terminal device can perform interference measurement of the second geographical coverage area on the second time-frequency resource.

[0163] For the above-mentioned configuration method five, the network device and the terminal device perform interference measurement based on the configuration information of the time-frequency resources, which may include: the network device and the terminal device can perform interference measurement in the first geographical coverage area according to the configuration period of the time-frequency resources; after the interference measurement in the first geographical coverage area is completed, the network device and the terminal device perform interference measurement in the second geographical coverage area.

[0164] For the above configuration mode 6, the network device and the terminal device perform interference measurement based on the configuration information of the time-frequency resource, which may include:

[0165] The network device sends MAC CE activation information to the terminal device, and the MAC CE activation information is used to activate the time-frequency resource; then the network device and the terminal device perform interference measurement of the first geographical coverage area on the time-frequency resource; after the interference measurement of the first geographical coverage area is completed, the network device and the terminal device perform interference measurement of the second geographical coverage area; after the interference measurement of the second geographical coverage area is completed, the network device sends MAC CE deactivation information to the terminal device, and the MAC CE deactivation information is used to deactivate the time-frequency resource.

[0166] In one embodiment, the network device and the terminal device perform interference measurement of the first geographical coverage area, which may specifically include: the network device transmits at least one wide beam, and receives an uplink signal through the at least one wide beam; each wide beam corresponds to one of the first geographical coverage areas, and the first geographical coverage areas corresponding to the at least one wide beam are located in the ground area covered by the network device and do not overlap with each other. During the period when the network device performs interference measurement of the first geographical coverage area, the terminal device does not send an uplink signal to the network device. Furthermore, the network device counts the uplink signal power corresponding to each wide beam; the first geographical coverage area corresponding to the wide beam whose uplink signal power reaches a preset first threshold is used as the first interference area.

[0167] In one embodiment, the network device and the terminal device perform interference measurement of the second geographical coverage area, which may specifically include: the network device transmits at least one narrow beam to the first interference area determined above, and receives an uplink signal through the at least one narrow beam; each narrow beam corresponds to one of the second geographical coverage areas, and the second geographical coverage areas corresponding to the at least one narrow beam do not overlap with each other. During the period when the network device performs interference measurement of the second geographical coverage area, the terminal device does not send an uplink signal to the network device. Furthermore, the network device counts the uplink signal power corresponding to each narrow beam; and the second geographical coverage area corresponding to the narrow beam whose uplink signal power reaches a preset second threshold is used as the target interference area.

[0168] Based on the above Fig. 9 The plan, Fig.10 A schematic diagram of avoiding uplink interference by interference measurement in an embodiment of the present application is shown; see Fig.10 As shown in (a), in the wide beam interference measurement stage, the satellite base station sends time-frequency resource configuration information #1 (which may be equivalent to the configuration information of the first time-frequency resource mentioned above) for wide beam interference measurement to the satellite terminal. After receiving the time-frequency resource configuration information #1, the satellite terminal does not send an uplink signal on the time-frequency resource. The satellite base station transmits a wide beam to the ground on the time-frequency resource, and scans different ground areas in turn through the wide beam. At the same time, uplink signals from different ground areas are received through the wide beam. After scanning the entire ground area through the wide beam, the satellite base station counts the power value of the uplink signal corresponding to each ground area scanned by the wide beam; the satellite base station determines that the power value of the uplink signal from ground area 1 has reached a preset threshold, and then determines that ground area 1 is an area with strong interference.

[0169] See also Fig.10As shown in (b), in the interference measurement stage of the narrow beam, the satellite base station sends time-frequency resource configuration information #2 (which may be equivalent to the configuration information of the second time-frequency resource mentioned above) for narrow beam interference measurement to the satellite terminal. After receiving the time-frequency resource configuration information #2, the satellite terminal does not send an uplink signal on the time-frequency resource. The satellite base station transmits a narrow beam to the ground area 1 on the time-frequency resource, and sequentially scans different ground areas in the ground area 1 (such as ground area 1-1, ground area 1-2, ground area 1-3, and ground area 1-4) through the narrow beam, and at the same time receives uplink signals from different ground areas through the narrow beam. After scanning the entire ground area 1 through the narrow beam, the satellite base station counts the power value of the uplink signal corresponding to each ground area scanned by the narrow beam; the satellite base station determines that only the power value of the uplink signal from the ground area 1-1 and the ground area 1-4 reaches the preset threshold, and then determines that the ground area 1-1 and the ground area 1-4 are areas with strong interference.

[0170] See also Fig.10 As shown in (c), in the interference avoidance phase, the satellite base station can instruct the beam not to point to the ground area 1-1 and the ground area 1-4 during beam scheduling, thereby effectively avoiding uplink interference.

[0171] It should be noted that the above Fig.10 In the interference measurement phase of wide beam and narrow beam, a beam is used to scan multiple ground areas in sequence to perform interference measurement. Fig.10 In (a), the satellite base station can also transmit multiple wide beams to the ground at the same time, each wide beam covers a corresponding ground area, and the ground areas covered by the multiple wide beams do not overlap with each other. The satellite base station can simultaneously count the power value of the interfering uplink signal from each ground area to determine which ground area has stronger interference. Fig.10 In (b), the satellite base station may also transmit multiple narrow beams to the ground area 1 at the same time, each narrow beam corresponding to a sub-ground area in the ground area 1, and the sub-ground areas covered by the multiple narrow beams do not overlap with each other. The satellite base station may simultaneously count the power value of the interfering uplink signal from each sub-ground area to determine which specific sub-ground area in the ground area 1 has stronger interference. Therefore, when the satellite base station subsequently communicates normally with the satellite terminal, the sub-ground area with stronger interference may be avoided to reduce uplink interference, so as to ensure the signal to interference plus noise ratio (SINR), i.e., signal-to-noise ratio, of the uplink signal received by the satellite base station from the satellite terminal.

[0172] In summary, an embodiment of the present application proposes a communication method, which includes: a terminal device receives first information from a network device, the first information is used to indicate configuration information of time-frequency resources; the configuration information of the time-frequency resources includes configuration information of the first time-frequency resources and configuration information of the second time-frequency resources, the first time-frequency resources are used for interference measurement of the first geographical coverage area, the second time-frequency resources are used for interference measurement of the second geographical coverage area, and the second geographical coverage area is a partial area of ​​the first geographical coverage area; the terminal device performs interference measurement based on the configuration information of the time-frequency resources. Through this method, interference measurement can be effectively implemented to solve the interference problem existing in communication, and at the same time, the resource overhead occupied during the interference measurement process can be effectively reduced.

[0173] Based on the above Fig. 9 A data processing method is shown, and is further described in detail below through several specific embodiments.

[0174] Embodiment 1:

[0175] In the first embodiment, the network device is a satellite base station, and the satellite base station serves the terminal UE1 as an example. Fig. 9 The configuration method 1 and the configuration method 2 in step S901 of the solution are introduced in detail.

[0176] The satellite base station can carry the configuration information of the time-frequency resource 1 for wide beam interference measurement and the configuration information of the time-frequency resource 2 for narrow beam interference measurement in the RRC signaling, and then send the RRC signaling to UE1, so that UE1 can learn the configuration information corresponding to the time-frequency resource 1 and the time-frequency resource 2 by parsing the RRC signaling. The specific configuration methods corresponding to the time-frequency resource 1 and the time-frequency resource 2 are as follows:

[0177] Configuration method 1: See Fig.11A As shown, the time-frequency resource 1 used for interference measurement of the wide beam is periodically configured, and the period of the time-frequency resource 1 is T1. The time-frequency resource 2 used for interference measurement of the narrow beam is semi-statically configured, and the period of the time-frequency resource 2 is T2. The time-frequency resource 2 needs to be activated and deactivated through the MAC CE command. The specific implementation is as follows:

[0178] According to the configuration period T1 of time-frequency resource 1, the satellite base station can first perform wide-beam interference measurement on the time-frequency resource 1, and UE1 does not send uplink signals to the satellite base station on the time-frequency resource 1. After completing the wide-beam interference measurement, the satellite base station sends a MAC CE activation command to UE1 to activate time-frequency resource 2, so that the satellite base station can perform narrow-beam interference measurement on time-frequency resource 2. After receiving the MAC CE activation command and the activation command takes effect, UE1 does not send uplink signals to the satellite base station on the time-frequency resource 2. After completing the narrow-beam interference measurement, the satellite base station sends a MAC CE deactivation command to UE1. After UE1 receives the MAC CE deactivation command and the deactivation command takes effect, UE1 can use the time-frequency resource 2 to communicate with the satellite base station.

[0179] Configuration method 2: See Fig. 11B As shown, the time-frequency resource 1 used for wide beam interference measurement is periodically configured, and the period of the time-frequency resource 1 is T1; the time-frequency resource 2 used for narrow beam interference measurement is non-periodically configured, and the time-frequency resource 2 needs to be activated through DCI signaling. The specific implementation is as follows:

[0180] According to the configuration period T1 of time-frequency resource 1, the satellite base station can first perform wide-beam interference measurement on the time-frequency resource 1, and UE1 does not send uplink signals to the satellite base station on the time-frequency resource 1. After completing the wide-beam interference measurement, the satellite base station sends DCI signaling to UE1 to activate time-frequency resource 2, so that the satellite base station can perform narrow-beam interference measurement on time-frequency resource 2, and UE1 does not send uplink signals to the satellite base station on the time-frequency resource 2 after receiving the DCI signaling; in order for the satellite base station to continuously use time-frequency resource 2 for narrow-beam interference measurement, the satellite base station needs to send DCI signaling to UE1 at intervals multiple times to activate time-frequency resource 2.

[0181] exist Fig.11A and Fig. 11B In the figure, on the time axis t, the black filled boxes all represent the time-frequency resources 1 used for the interference measurement of the wide beam, and the white filled boxes all represent the time-frequency resources 2 used for the interference measurement of the narrow beam.

[0182] In this embodiment 1, the uplink interference characteristics may be different at different times. The time-frequency resource 1 used for wide-beam interference measurement is periodically configured, and the network device side can continuously track and determine the area with strong interference through periodic wide-beam scanning. The time-frequency resource 2 used for narrow-beam interference measurement is semi-statically or non-periodically configured, so that the network device side can flexibly activate / deactivate the time-frequency resource 2 according to the results of the wide-beam scanning to perform more fine-grained interference area scanning through a narrow beam. Through this method, the network device side can not only quickly determine the area with strong interference, but also reduce the overhead generated by the beam scanning used to determine the interference area.

[0183] Embodiment 2:

[0184] In the second embodiment, the network device is a satellite base station, and the satellite base station serves the terminal UE1 as an example. Fig. 9 Configuration method three and configuration method four in step S901 of the solution are introduced in detail.

[0185] The satellite base station can carry the configuration information of the time-frequency resource 1 for wide beam interference measurement and the configuration information of the time-frequency resource 2 for narrow beam interference measurement in the RRC signaling, and then send the RRC signaling to UE1, so that UE1 can learn the configuration information corresponding to the time-frequency resource 1 and the time-frequency resource 2 by parsing the RRC signaling. The specific configuration methods corresponding to the time-frequency resource 1 and the time-frequency resource 2 are as follows:

[0186] Configuration method three: See Fig. 12A As shown, the time-frequency resource 1 used for interference measurement of the wide beam is semi-statically configured, and the period of the time-frequency resource 1 is T1. The time-frequency resource 1 needs to be activated and deactivated through the MAC CE command. The time-frequency resource 2 used for interference measurement of the narrow beam is semi-statically configured, and the period of the time-frequency resource 2 is T2. Similarly, the time-frequency resource 2 also needs to be activated and deactivated through the MAC CE command. The specific implementation is as follows:

[0187] The satellite base station first sends a MAC CE activation command 1 to UE1 to activate the time-frequency resource 1 for wide-beam interference measurement. After the command takes effect, the satellite base station performs wide-beam interference measurement on the time-frequency resource 1, and UE1 does not send an uplink signal to the satellite base station on the time-frequency resource 1. After completing the wide-beam interference measurement, the satellite base station sends a MAC CE deactivation command 1 to UE1 to deactivate the time-frequency resource 1.

[0188] Next, the satellite base station sends a MAC CE activation command 2 to UE1 to activate the time-frequency resource 2 for narrow beam interference measurement. After the command takes effect, the satellite base station performs narrow beam interference measurement on the time-frequency resource 2, and UE1 does not send an uplink signal to the satellite base station on the time-frequency resource 2. After completing the narrow beam interference measurement, the satellite base station sends a MAC CE deactivation command 2 to UE1 to deactivate the time-frequency resource 2.

[0189] Configuration method 4: See Fig. 12B As shown, the time-frequency resource 1 used for interference measurement of wide beam is semi-statically configured, the period of the time-frequency resource 1 is T1, and the time-frequency resource 1 needs to be activated and deactivated through the MAC CE command. The time-frequency resource 2 used for interference measurement of narrow beam is non-periodically configured, and the time-frequency resource 2 needs to be activated through DCI signaling. The specific implementation is as follows:

[0190] The satellite base station first sends a MAC CE activation command to UE1 to activate time-frequency resource 1 for wide-beam interference measurement. After the command takes effect, the satellite base station performs wide-beam interference measurement on the time-frequency resource 1, and UE1 does not send uplink signals to the satellite base station on the time-frequency resource 1. After completing the wide-beam interference measurement, the satellite base station sends a MAC CE deactivation command to UE1 to deactivate time-frequency resource 1.

[0191] Next, the satellite base station sends DCI signaling to UE1 to activate time-frequency resource 2 for narrow beam interference measurement, so that the satellite base station can perform narrow beam interference measurement on time-frequency resource 2. After receiving the DCI signaling, UE1 does not send an uplink signal to the satellite base station on the time-frequency resource 2. In order for the satellite base station to continuously use time-frequency resource 2 for narrow beam interference measurement, the satellite base station needs to send DCI signaling to UE1 intermittently multiple times to activate time-frequency resource 2.

[0192] exist Fig. 12A and Fig. 12B In the figure, on the time axis t, the black filled boxes all represent the time-frequency resources 1 used for the interference measurement of the wide beam, and the white filled boxes all represent the time-frequency resources 2 used for the interference measurement of the narrow beam.

[0193] In the second embodiment, the time-frequency resources for interference measurement of a wide beam (i.e., the interference measurement time-frequency resources associated with a wide beam) are semi-statically configured, and the network device side can flexibly activate / deactivate the time-frequency resources for interference measurement of a wide beam according to the time-varying characteristics of the uplink interference or the measurement requirements, so as to perform interference area scanning through a wide beam. The time-frequency resources for interference measurement of a narrow beam (i.e., the interference measurement time-frequency resources associated with a narrow beam) are semi-statically or non-periodically configured, and the network device side can flexibly activate / deactivate the time-frequency resources for interference measurement of a narrow beam according to the results of the wide beam scanning, so as to perform more fine-grained interference area scanning through a narrow beam. Through this method, the network device side can not only quickly determine the area with strong interference, but also reduce the overhead generated by the beam scanning used to determine the interference area.

[0194] Embodiment three:

[0195] In the third embodiment, the network device is a satellite base station, and the satellite base station serves the terminal UE1 as an example. Fig. 9 The configuration method five and the configuration method six in step S901 of the solution are introduced in detail.

[0196] The satellite base station can carry the configuration information of the time-frequency resource 1 for wide beam interference measurement and the configuration information of the time-frequency resource 2 for narrow beam interference measurement in the RRC signaling, and then send the RRC signaling to UE1, so that UE1 can learn the configuration information corresponding to the time-frequency resource 1 and the time-frequency resource 2 by parsing the RRC signaling. The specific configuration methods corresponding to the time-frequency resource 1 and the time-frequency resource 2 are as follows:

[0197] Configuration method 5: See Fig.13A As shown, a section of time-frequency resources used for wide beam interference measurement and narrow beam interference measurement is periodically configured, and the period of this section of time-frequency resources is T3. The specific implementation is as follows:

[0198] According to the configuration period T3 of this segment of time-frequency resources, the satellite base station can first perform wide-beam interference measurement on this segment of time-frequency resources. After completing the wide-beam interference measurement, the satellite base station can perform narrow-beam interference measurement. After completing the narrow-beam interference measurement, the time-frequency resources can be used for wide-beam interference measurement again, and so on.

[0199] Configuration method six: See Fig. 13B As shown, a time-frequency resource is used for wide beam interference measurement and narrow beam interference measurement. The specific range of this time-frequency resource can be flexibly preset, and this time-frequency resource is semi-statically configured and needs to be activated and deactivated through MAC CE. The specific implementation is as follows:

[0200] The satellite base station first sends a MAC CE activation command to UE1 to activate this time-frequency resource. After the command takes effect, UE1 does not send uplink signals to the satellite base station on this time-frequency resource, and the satellite base station performs wide-beam interference measurement. After completing the wide-beam interference measurement, the satellite base station can perform narrow-beam interference measurement. After completing the narrow-beam interference measurement, the satellite base station sends a MAC CE deactivation command to UE1 to instruct the deactivation of this time-frequency resource. After that, UE1 can communicate normally with the satellite base station on this time-frequency resource.

[0201] exist Fig.13A and Fig. 13B In the figure, on the time axis t, the black filled boxes all represent the time-frequency resources 1 used for the interference measurement of the wide beam, and the white filled boxes all represent the time-frequency resources 2 used for the interference measurement of the narrow beam.

[0202] In this third embodiment, the time-frequency resources used for interference measurement are periodically or semi-statically configured, and the network device side can flexibly activate / deactivate the time-frequency resources according to the time-varying characteristics of the uplink interference or the measurement requirements, so as to scan the interference area through wide beams and narrow beams. The above-mentioned time-frequency resources for interference measurement are not fixedly associated with wide beams and narrow beams (that is, they are not fixedly used for wide beam interference measurement or narrow beam interference measurement), but the network device side flexibly uses the time-frequency resources for wide beam or narrow beam interference measurement according to the scanning requirements, so that it can not only effectively determine the areas with strong interference, but also effectively reduce the signaling overhead.

[0203] In the embodiments provided by the present application, the methods provided by the embodiments of the present application are introduced from the perspective of interaction between various devices. In order to realize the functions in the methods provided by the embodiments of the present application, the network device or the terminal device may include a hardware structure and / or a software module, and the functions are realized in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a function in the above functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

[0204] The division of modules in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0205] Same as above idea, Fig.14As shown, the embodiment of the present application also provides a communication device 1400 for implementing the functions of the network device or terminal device in the above method. For example, the communication device 1400 can be a software module or a chip system. In the embodiment of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices. The communication device 1400 may include: a communication unit 1401 and a processing unit 1402.

[0206] In the embodiment of the present application, the communication unit 1401 may also be referred to as a transceiver unit, and may include a sending unit and / or a receiving unit, which are respectively used to perform the steps of sending and receiving by the network device or the terminal device in the above method embodiment. The processing unit 1402 may be used to read instructions and / or data in the storage module so that the communication device 1400 implements the above method embodiment.

[0207] Optionally, the communication device 1400 may further include a storage unit 1403, which is equivalent to a storage module and can be used to store instructions and / or data.

[0208] The following, combined Figure 14 to Figure 15 The communication device provided in the embodiment of the present application is described in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the contents not described in detail can be referred to above. Fig. 9 For the sake of brevity, the method embodiment will not be described in detail here.

[0209] The communication unit 1401 may also be referred to as a transceiver, a transceiver, a transceiver device, etc. The processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, etc. Optionally, the device used to implement the receiving function in the communication unit 1401 may be regarded as a receiving unit, and the device used to implement the sending function in the communication unit 1401 may be regarded as a sending unit, that is, the communication unit 1401 includes a receiving unit and a sending unit. The communication unit may also be sometimes referred to as a transceiver, a transceiver, or a transceiver circuit, etc. The receiving unit may also be sometimes referred to as a receiver, a receiver, or a receiving circuit, etc. The sending unit may also be sometimes referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0210] When the communication device 1400 executes the above embodiment Fig. 9 In the process shown, when the terminal device:

[0211] The communication unit 1401 is configured to receive first information, where the first information is used to indicate configuration information of time-frequency resources; the configuration information of the time-frequency resources includes configuration information of the first time-frequency resources and configuration information of the second time-frequency resources, the first time-frequency resources are used for interference measurement of a first geographical coverage area, the second time-frequency resources are used for interference measurement of a second geographical coverage area, and the second geographical coverage area is a partial area of ​​the first geographical coverage area;

[0212] The processing unit 1402 is configured to perform interference measurement based on the configuration information of the time-frequency resources.

[0213] When the communication device 1400 executes the above embodiment Fig. 9 In the process shown, when the network device:

[0214] The processing unit 1402 is configured to generate configuration information of time-frequency resources; the configuration information of the time-frequency resources includes configuration information of first time-frequency resources and configuration information of second time-frequency resources, the first time-frequency resources are used for interference measurement in a first geographical coverage area, the second time-frequency resources are used for interference measurement in a second geographical coverage area, and the second geographical coverage area is a partial area in the first geographical coverage area;

[0215] The communication unit 1401 is used to send first information, where the first information is used to indicate configuration information of the time-frequency resources;

[0216] The processing unit 1402 is configured to perform interference measurement based on the configuration information of the time-frequency resources.

[0217] The above is just an example. The processing unit 1402 and the communication unit 1401 can also perform other functions. For more detailed description, please refer to Fig. 9 The relevant description in the method embodiment shown is not repeated here.

[0218] like Fig.15 The figure shows a communication device 1500 provided in an embodiment of the present application. Fig.15 The communication device shown can be Fig.14 The communication device 1500 can be applied to the flowchart shown above to perform the functions of the terminal device or the first access network device or the second access network device in the above method embodiment. For the convenience of explanation, Fig.15 Only the main components of the communication device are shown.

[0219] like Fig.15 As shown, the communication device 1500 includes a communication interface 1501 and a processor 1502. The communication interface 1501 and the processor 1502 are coupled to each other. It can be understood that the communication interface 1501 can be a transceiver or an input-output interface, or an interface circuit such as a transceiver circuit. Optionally, the communication device 1500 can also include a memory 1503 for storing instructions executed by the processor 1502 or storing input data required by the processor 1502 to run the instructions or storing data generated after the processor 1502 runs the instructions.

[0220] When the communication device 1500 is used to implement Fig. 9 In the method shown, the communication interface 1501 is used to implement the functions of the above-mentioned communication unit 1401, and the processor 1502 is used to implement the functions of the above-mentioned processing unit 1402.

[0221] The specific connection medium between the communication interface 1501, the processor 1502 and the memory 1503 is not limited in the embodiment of the present application. Fig.15 In the embodiment, the memory 1503, the processor 1502 and the communication interface 1501 are connected via a communication bus 1504. Fig.15 The communication bus 1504 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.15 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0222] When the communication device is a chip, Fig.16 A simplified schematic diagram of a chip device structure is shown, wherein the chip 1600 includes an interface circuit 1601 and one or more processors 1602. Optionally, the chip 1600 may also include a bus.

[0223] Processor 1602 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above communication method can be completed by an integrated logic circuit of hardware in processor 1602 or an instruction in software form. The above processor 1602 can be a general-purpose processor, a digital communicator (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The disclosed methods and steps in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0224] The interface circuit 1601 can be used to send or receive data, instructions or information. The processor 1602 can use the data, instructions or other information received by the interface circuit 1601 to process, and can send the processing completion information through the interface circuit 1601.

[0225] Optionally, the chip further includes a memory 1603, which may include a read-only memory and a random access memory, and provides operation instructions and data to the processor. A portion of the memory 1603 may also include a non-volatile random access memory (NVRAM).

[0226] Optionally, the memory stores executable software modules or data structures, and the processor can perform corresponding operations by calling operation instructions stored in the memory (the operation instructions can be stored in the operating system).

[0227] Optionally, the chip can be used in a network device or terminal device involved in an embodiment of the present application. Optionally, the interface circuit 1601 can be used to output the execution result of the processor 1602. The communication method provided by one or more embodiments of the present application can refer to the aforementioned embodiments, which will not be repeated here.

[0228] It should be noted that the corresponding functions of the interface circuit 1601 and the processor 1602 can be implemented through hardware design, software design, or a combination of hardware and software, and there is no limitation here.

[0229] An embodiment of the present application also provides a computer-readable storage medium on which computer instructions for implementing the method executed by a network device or a terminal device in the above method embodiment are stored.

[0230] For example, when the computer program is executed by a computer, the computer can implement the method performed by the network device or the terminal device in the above method embodiment.

[0231] An embodiment of the present application also provides a computer program product including instructions, which, when executed by a computer, enables the computer to implement the method executed by the network device or the terminal device in the above method embodiment.

[0232] The embodiment of the present application also provides a chip, including a processor, which is used to call the computer program or computer instruction stored in the memory so that the processor executes the above Fig. 9 The communication method of the embodiment shown.

[0233] In a possible implementation, the chip input corresponds to the above Fig. 9 The receiving operation in the embodiment shown in the figure, the output of the chip corresponds to the sending operation in the embodiment shown in 9 above.

[0234] Optionally, the processor is coupled to the memory via an interface.

[0235] Optionally, the chip also includes a memory in which computer programs or computer instructions are stored.

[0236] The processor mentioned in any of the above may be a general-purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of a program of a communication method of the embodiment shown in 9 above. The memory mentioned in any of the above may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), etc.

[0237] It should be noted that, for the sake of convenience and brevity of description, the explanation of the relevant contents and beneficial effects in any of the communication devices provided above may refer to the corresponding communication method embodiments provided above, and will not be repeated here.

[0238] In the present application, the communication devices may also include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. Among them, the hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system. The application layer may include applications such as browsers, address books, word processing software, and instant messaging software.

[0239] The division of modules in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0240] Through the description of the above implementation mode, it can be clearly understood by those skilled in the art that the embodiments of the present application can be implemented by hardware, firmware, or a combination thereof. When software is used for implementation, the above functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any medium that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a computer can access. Taking this as an example but not limited to: a computer-readable medium can include RAM, ROM, electrically erasable programmable read only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store a desired program code in the form of an instruction or data structure and can be accessed by a computer. In addition. Any connection can be appropriately a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the fixation of the medium. As used in the embodiments of the present application, disk and disc include compact disc (CD), laser disc, optical disc, digital video disc (DVD), floppy disk, and Blu-ray disc, where disks usually copy data magnetically and discs use lasers to copy data optically. The above combinations should also be included in the scope of protection of computer-readable media.

[0241] In short, the above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made according to the disclosure of the present application shall be included in the protection scope of the present application.

Claims

1. A communication method, characterized in that: The method is applied to a terminal device or a chip of the terminal device, and includes: Receive first information, where the first information is used to indicate configuration information of time-frequency resources; the configuration information of the time-frequency resources includes configuration information of the first time-frequency resources and configuration information of the second time-frequency resources, the first time-frequency resources are used for interference measurement of a first geographical coverage area, the second time-frequency resources are used for interference measurement of a second geographical coverage area, and the second geographical coverage area is a partial area of ​​the first geographical coverage area; Interference measurement is performed based on the configuration information of the time-frequency resources.

2. The method according to claim 1, characterized in that The configuration information of the first time-frequency resource indicates that the first time-frequency resource is periodically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is semi-statically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: Perform interference measurement of the first geographical coverage area on the first time-frequency resource according to a configuration period of the first time-frequency resource; receiving MAC CE activation information, where the MAC CE activation information is used to activate the second time-frequency resource; Perform interference measurement of the second geographic coverage area on the second time-frequency resources.

3. The method according to claim 2, characterized in that The method further comprises: Receive MAC CE deactivation information, where the MAC CE deactivation information is used to deactivate the second time-frequency resource.

4. The method according to claim 1, characterized in that: The configuration information of the first time-frequency resource indicates that the first time-frequency resource is periodically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is aperiodically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: Perform interference measurement of the first geographical coverage area on the first time-frequency resource according to a configuration period of the first time-frequency resource; receiving first downlink control information DCI information, where the first downlink control information DCI information is used to indicate activation of the second time-frequency resource; Perform interference measurement of the second geographic coverage area on the second time-frequency resources.

5. The method according to claim 1, characterized in that The configuration information of the first time-frequency resource indicates that the first time-frequency resource is semi-statically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is semi-statically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: receiving first MAC CE activation information, where the first MAC CE activation information is used to activate the first time-frequency resource; Perform interference measurement of the first geographic coverage area on the first time-frequency resource; receiving first MAC CE deactivation information, where the first MAC CE deactivation information is used to deactivate the first time-frequency resource; receiving second MAC CE activation information, where the second MAC CE activation information is used to activate the second time-frequency resource; Perform interference measurement of the second geographic coverage area on the second time-frequency resources.

6. The method according to claim 5, characterized in that The method further comprises: Receive second MAC CE deactivation information, where the second MAC CE deactivation information is used to deactivate the second time-frequency resource.

7. The method according to claim 1, characterized in that The configuration information of the first time-frequency resource indicates that the first time-frequency resource is semi-statically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is non-periodically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: receiving MAC CE activation information, where the MAC CE activation information is used to indicate activation of the first time-frequency resource; Perform interference measurement of the first geographic coverage area on the first time-frequency resource; receiving MAC CE deactivation information, where the MAC CE deactivation information is used to instruct to deactivate the first time-frequency resource; receiving second downlink control information DCI information, where the second downlink control information DCI information is used to indicate activation of the second time-frequency resource; Perform interference measurement of the second geographic coverage area on the second time-frequency resources.

8. The method according to claim 1, characterized in that The configuration information of the time-frequency resources indicates that the time-frequency resources are periodically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: According to the period of the time-frequency resources, interference measurement of the first geographical coverage area and interference measurement of the second geographical coverage area are performed on the time-frequency resources.

9. The method according to claim 1, characterized in that: The configuration information of the time-frequency resources indicates that the time-frequency resources are semi-statically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: receiving MAC-CE activation information, where the MAC CE activation information is used to activate the time-frequency resources; Interference measurement of the first geographic coverage area and interference measurement of the second geographic coverage area are performed on the time-frequency resources.

10. The method according to claim 9, characterized in that The method further comprises: Receive MAC-CE deactivation information, where the MAC CE deactivation information is used to deactivate the time-frequency resources.

11. The method according to any one of claims 1 to 10, characterized in that The first information is radio access control RRC information.

12. A communication method, characterized in that: The method is applied to a network device or a chip of the network device, and includes: Generate configuration information of time-frequency resources; the configuration information of the time-frequency resources includes configuration information of a first time-frequency resource and configuration information of a second time-frequency resource, the first time-frequency resource is used for interference measurement in a first geographic coverage area, the second time-frequency resource is used for interference measurement in a second geographic coverage area, and the second geographic coverage area is a partial area of ​​the first geographic coverage area; Sending first information, where the first information is used to indicate configuration information of the time-frequency resources; Interference measurement is performed based on the configuration information of the time-frequency resources.

13. The method according to claim 12, characterized in that The configuration information of the first time-frequency resource indicates that the first time-frequency resource is periodically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is semi-statically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: Perform interference measurement of the first geographical coverage area on the first time-frequency resource according to a configuration period of the first time-frequency resource; After the interference measurement of the first geographic coverage area is completed, sending MAC CE activation information, where the MAC CE activation information is used to activate the second time-frequency resource; Perform interference measurement of the second geographic coverage area on the second time-frequency resource; After the interference measurement of the second geographical coverage area is completed, MAC CE deactivation information is sent, where the MAC CE deactivation information is used to deactivate the second time-frequency resource.

14. The method according to claim 12, characterized in that The configuration information of the first time-frequency resource indicates that the first time-frequency resource is periodically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is aperiodically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: Perform interference measurement of the first geographical coverage area on the first time-frequency resource according to a configuration period of the first time-frequency resource; After the interference measurement of the first geographical coverage area is completed, sending first downlink control information DCI information, where the first downlink control information DCI information is used to indicate activation of the second time-frequency resource; Perform interference measurement of the second geographic coverage area on the second time-frequency resources.

15. The method according to claim 12, characterized in that The configuration information of the first time-frequency resource indicates that the first time-frequency resource is semi-statically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is semi-statically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: Sending first MAC CE activation information, where the first MAC CE activation information is used to activate the first time-frequency resource; Perform interference measurement of the first geographic coverage area on the first time-frequency resource; After the interference measurement of the first geographic coverage area is completed, sending first MAC CE deactivation information, where the first MAC CE deactivation information is used to deactivate the first time-frequency resource; Sending second MAC CE activation information, where the second MAC CE activation information is used to activate the second time-frequency resource; Perform interference measurement of the second geographic coverage area on the second time-frequency resource; After the interference measurement of the second geographical coverage area is completed, second MAC CE deactivation information is sent, where the second MAC CE deactivation information is used to deactivate the second time-frequency resources.

16. The method according to claim 12, characterized in that The configuration information of the first time-frequency resource indicates that the first time-frequency resource is semi-statically configured, and the configuration information of the second time-frequency resource indicates that the second time-frequency resource is non-periodically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: Sending MAC CE activation information, where the MAC CE activation information is used to indicate activation of the first time-frequency resource; Perform interference measurement of the first geographic coverage area on the first time-frequency resource; After the interference measurement of the first geographical coverage area is completed, sending MAC CE deactivation information, where the MAC CE deactivation information is used to indicate that the first time-frequency resource is deactivated; Sending second downlink control information DCI information, where the second downlink control information DCI information is used to indicate activation of the second time-frequency resource; Perform interference measurement of the second geographic coverage area on the second time-frequency resources.

17. The method according to claim 12, characterized in that The configuration information of the time-frequency resources indicates that the time-frequency resources are periodically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: Perform interference measurement of the first geographical coverage area according to the configuration period of the time-frequency resources; After the interference measurement of the first geographical coverage area is completed, the interference measurement of the second geographical coverage area is performed.

18. The method according to claim 12, characterized in that The configuration information of the time-frequency resources indicates that the time-frequency resources are semi-statically configured; The performing interference measurement based on the configuration information of the time-frequency resources includes: Sending MAC CE activation information, where the MAC CE activation information is used to activate the time-frequency resources; Perform interference measurement of the first geographic coverage area on the time-frequency resources; After the interference measurement of the first geographical coverage area is completed, performing interference measurement of the second geographical coverage area; After the interference measurement of the second geographical coverage area is completed, MAC CE deactivation information is sent, where the MAC CE deactivation information is used to deactivate the time-frequency resources.

19. The method according to any one of claims 13 to 18, characterized in that The performing interference measurement of the first geographical coverage area includes: Transmit at least one wide beam, and receive an uplink signal through the at least one wide beam; each wide beam corresponds to one of the first geographical coverage areas, and the first geographical coverage areas corresponding to the at least one wide beam are located in the ground area covered by the network device and do not overlap with each other; Count the uplink signal power corresponding to each wide beam; The first geographical coverage area corresponding to the wide beam whose uplink signal power reaches a preset first threshold is used as a first interference area.

20. The method according to any one of claims 13 to 19, characterized in that The performing interference measurement of the second geographical coverage area includes: Transmitting at least one narrow beam to the first interference area, and receiving an uplink signal through the at least one narrow beam; each narrow beam corresponds to one second geographical coverage area, and the second geographical coverage areas corresponding to the at least one narrow beam do not overlap with each other; Count the uplink signal power corresponding to each narrow beam; The second geographical coverage area corresponding to the narrow beam whose uplink signal power reaches a preset second threshold is used as a target interference area.

21. The method according to any one of claims 12 to 20, characterized in that The first information is radio access control RRC information.

22. A communication device, characterized in that: The method comprises a module or a unit for executing the method according to any one of claims 1 to 11, or a module or a unit for executing the method according to any one of claims 12 to 21.

23. A communication device, characterized in that: It includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor or send signals from the processor to other communication devices outside the communication device, the processor is used to implement the method as described in any one of claims 1 to 11 through a logic circuit or by executing code instructions, and the processor is used to implement the method as described in any one of claims 12 to 21 through a logic circuit or by executing code instructions.

24. A communication system, characterized in that: include: A terminal device for executing the method as described in any one of claims 1 to 11, and a network device for executing the method as described in any one of claims 12 to 21.

25. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or an instruction, and when the computer program or the instruction is executed by the communication device, the method according to any one of claims 1 to 21 is implemented.

26. A computer program product, characterized in that The computer program product stores computer-readable instructions, and when the computer-readable instructions are executed, the method according to any one of claims 1 to 21 is executed.

27. A chip, characterized in that: The chip comprises at least one processor, and the processor is configured to execute the method according to any one of claims 1 to 21.

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