Communication method and system, terminal, network device, and storage medium

Abstract

A communication method and system, a terminal, a network device, and a storage medium. The method comprises: when a trigger condition is met, triggering measurement reporting initiated by a terminal or triggered by an event, wherein the trigger condition is used for triggering measurement initiated by the terminal or triggered on the basis of an event, and triggering the terminal to report a measurement result, wherein the measurement reporting is performed on the basis of a measurement configuration, and is used for reporting at least one of an updated cooperative access point (AP) set and an updated cooperation mode; the measurement configuration corresponds to at least one of one or more APs and one or more AP sets; the cooperative AP set is used for providing cooperative transmission support in a distributed network for the terminal; the one or more APs include at least one of a cooperative AP and a candidate AP; and the one or more AP sets include at least one of the cooperative AP set and a candidate AP set. The method improves the timeliness of measurement reporting, and improves the availability of distributed massive MIMO technology and cell‑free networks.

Description

Communication methods, terminals, network devices, systems, and storage media Technical Field

[0001] This disclosure relates to the field of communications, and in particular to communication methods, terminals, network devices, systems and storage media. Background Technology

[0002] Currently, ultra-large-scale multiple-input multiple-output (MIMO) technology mainly presents two forms in antenna architecture: centralized ultra-large-scale MIMO and distributed ultra-large-scale MIMO. Summary of the Invention

[0003] To improve the availability of distributed massive MIMO technology, embodiments of this disclosure provide a communication method, a terminal, a network device, a system, and a storage medium.

[0004] According to a first aspect of the present disclosure, a communication method is provided, the method being executed by a terminal, the method comprising:

[0005] If the triggering condition is met, a measurement report initiated by the terminal or triggered by an event is triggered; wherein, the triggering condition is used to trigger a measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report the measurement result, the measurement report is based on the measurement configuration, and is used to report at least one of the updated cooperative access point (AP) set and the updated cooperative mode, wherein the measurement configuration corresponds to at least one of one or more APs or one or more AP sets, and the cooperative AP set is used to provide cooperative transmission support in the distributed network for the terminal; wherein, the one or more APs include at least one of cooperative APs and candidate APs, and the one or more AP sets include at least one of cooperative AP sets and candidate AP sets.

[0006] According to a second aspect of the present disclosure, a communication method is provided, the method being performed by a network device, the method comprising:

[0007] A measurement configuration is sent to the terminal; wherein the measurement configuration corresponds to at least one of one or more access points (APs) and at least one of one or more sets of access points (APs), wherein the one or more APs include at least one of cooperating APs and candidate APs, and the one or more AP sets include at least one of a set of cooperating APs and a set of candidate APs; wherein the measurement configuration is used by the terminal to trigger measurement reporting initiated by the terminal or triggered by an event when a triggering condition is met, wherein the triggering condition is used to trigger measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report the measurement results, wherein the measurement reporting is used to report at least one of the updated set of cooperating access point (APs) and the updated cooperation mode.

[0008] According to a third aspect of the present disclosure, a communication method is provided, the method being used in a communication system, the communication system including a terminal and a network device, the method comprising:

[0009] The network device sends a measurement configuration to the terminal; wherein the measurement configuration corresponds to at least one of one or more access points (APs) and at least one of one or more sets of access points (APs), the one or more APs include at least one of cooperating APs and candidate APs, and the one or more sets of APs include at least one of a set of cooperating APs and a set of candidate APs;

[0010] If the triggering condition is met, the terminal triggers a measurement report initiated by the terminal or triggered by an event; wherein, the triggering condition is used to trigger a measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report the measurement result, the measurement report is based on the measurement configuration, and is used to report at least one of the updated set of cooperative access points (APs) and the updated cooperative mode.

[0011] According to a fourth aspect of the present disclosure, a communication device is provided, the communication device being used to perform the communication method described in any one of the first or second aspects.

[0012] According to a fifth aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the communication method described in any one of the first aspects, and the network device is configured to implement the communication method described in any one of the second aspects.

[0013] According to a sixth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform a communication method as described in any one of the first or second aspects.

[0014] According to a seventh aspect of the present disclosure, a computer program product is provided, including a computer program that, when executed by a processor, is used to implement the communication method described in any one of the first or second aspects.

[0015] In this embodiment of the disclosure, measurement reporting initiated by the terminal or triggered by an event can be triggered when the triggering conditions are met, which improves the timeliness of measurement reporting, the availability of distributed massive MIMO technology, and the availability of non-cellular networks.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] Figure 1A is a schematic diagram of the structure of a communication system according to an exemplary embodiment.

[0019] Figure 1B is a schematic diagram of an architecture of a non-cellular wireless access network according to an exemplary embodiment.

[0020] Figure 1C is a schematic diagram of a distributed MIMO architecture according to an exemplary embodiment.

[0021] Figure 1D is a schematic diagram of a CSI feedback framework according to an exemplary embodiment.

[0022] Figure 2 is an interactive schematic diagram of a communication method according to an exemplary embodiment.

[0023] Figure 3A is a flowchart illustrating one of the communication methods according to an exemplary embodiment.

[0024] Figure 3B is a second schematic flowchart illustrating a communication method according to an exemplary embodiment.

[0025] Figure 4A is a schematic diagram of the structure of a terminal according to an exemplary embodiment.

[0026] Figure 4B is a schematic diagram of the structure of a network device according to an exemplary embodiment.

[0027] Figure 5A is a schematic diagram of the structure of a communication device according to an exemplary embodiment.

[0028] Figure 5B is a schematic diagram of the structure of a chip according to an exemplary embodiment. Detailed Implementation

[0029] This disclosure provides a communication method, terminal, network device, system, and storage medium.

[0030] In a first aspect, embodiments of this disclosure propose a communication method executed by a terminal. The method includes: satisfying a triggering condition to trigger a measurement reporting initiated by the terminal or triggered by an event; wherein the triggering condition is used to trigger a measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report the measurement result, the measurement reporting is based on a measurement configuration, and is used to report at least one of an updated set of cooperative access points (APs) and an updated cooperative mode, the measurement configuration corresponding to one or more APs and at least one of one or more AP sets, the cooperative AP set being used to provide cooperative transmission support in a distributed network for the terminal; wherein the one or more APs include at least one of cooperative APs and candidate APs, and the one or more AP sets include at least one of a cooperative AP set and a candidate AP set.

[0031] In the above embodiments, measurement reporting initiated by the terminal or triggered by an event can be triggered when the triggering conditions are met, which improves the timeliness of measurement reporting, the availability of distributed massive MIMO technology, and the availability of non-cellular networks.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the triggering condition includes at least one of the following: at least one event occurs; the number of times the same event occurs within a first time window is greater than or equal to the first number; the total number of times the same or different events occur within the first time window is greater than or equal to the second number; the time interval between two adjacent measurement reports is greater than or equal to a first duration; wherein, the first time window is a time window corresponding to the same measurement configuration, or, the first time window is a time window opened in a predefined manner.

[0033] In the above embodiments, the triggering conditions may include, but are not limited to, at least one of the above, which improves the availability and reliability of measurement reporting initiated by the terminal or triggered by an event.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, the triggering condition includes the same event occurring more than or equal to the first occurrence within a first time window, and the method further includes at least one of the following: the second event occurring more than or equal to the first occurrence within the first time window; resetting the event occurrence count counter; wherein the counter is used to determine the number of times the event occurs; resetting the starting position of the first time window; wherein the second event is different from the first event, and the first event is the first event to start counting within the first time window.

[0035] In the above embodiments, different events can be counted and accumulated independently within the first time window, effectively avoiding the ping-pong effect and avoiding frequent changes to at least one of the collaborative AP set and collaboration method, resulting in high availability.

[0036] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: receiving at least one of the first number of times and the second number of times sent by the network device; wherein the first number of times is determined by the network device based on the capabilities of the terminal, and the second number of times is determined by the network device based on the capabilities of the terminal.

[0037] In the above embodiments, the network device can configure the first number and / or the second number based on the terminal's capabilities, which is simple to implement and highly available.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: receiving the first duration sent by the network device; starting a timeout timer after performing the measurement reporting, wherein the timeout timer's duration is the first duration; wherein the measurement reporting cannot be performed again before the timeout timer expires.

[0039] In the above embodiments, frequent measurement reporting can be avoided, effectively avoiding the ping-pong effect and avoiding frequent changes to at least one of the collaborative AP set and collaboration method, resulting in high availability.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments, the event includes at least one of the following: a measurement value of one or more first APs is greater than a measurement value of a second AP, and the difference between the measurement value of the one or more first APs and the measurement value of the second AP is greater than or equal to a first threshold; a measurement value of one or more first APs is greater than a measurement value of a third AP, and the difference between the measurement value of the one or more first APs and the measurement value of the second AP is greater than or equal to a second threshold; a measurement value of one or more first APs is higher than a measurement value of a fourth AP, and the difference between the measurement value of the one or more first APs and the measurement value of the fourth AP is greater than or equal to a third threshold; the measurement value of the second AP... The value is greater than the measured value of the fourth AP, and the difference between the measured value of the second AP and the measured value of the fourth AP is greater than or equal to the fourth threshold value; the measured value of the fourth AP is less than or equal to the fifth threshold value; the measured value of one or more first APs is greater than or equal to the sixth threshold value; the measured value of the fourth AP is less than or equal to the fifth threshold value, and the measured value of one or more first APs is greater than or equal to the sixth threshold value; the parameter value of one or more fifth APs is greater than or equal to the seventh threshold value; wherein, the parameter value includes at least one of the maximum power reduction P-MPR value, P-MPR change value, maximum output exposure MPE value, and MPE change value; the multi-point measured value corresponding to the second AP set is less than or equal to the seventh threshold value. The following conditions must be met: The multipoint measurement value corresponding to the second AP set is greater than or equal to the eighth threshold; the multipoint measurement value in the second AP set differs from the measurement values ​​of N third AP sets; the timing advance TA value of one or more second APs is greater than or equal to the first TA threshold; the TA change value of one or more second APs is greater than or equal to the second TA threshold; the difference in TA values ​​corresponding to different second APs in the second AP set is greater than or equal to the third TA threshold; the path loss value corresponding to the second AP is greater than or equal to the first path loss threshold; the path loss change value of the second AP is greater than or equal to the second path loss threshold; the block error rate (BLER) of the first channel is less than or equal to the block error rate threshold; a mobility LTM event triggered by Layer 1 or Layer 2 is triggered. The following events were detected: an LTM handover command was received; an AP update request or an AP set update request was detected; a terminal power saving request was detected; wherein, the first AP is any AP that meets the event, the second AP is the AP with the highest measurement value in the second AP set, the third AP is the Mth second AP determined after sorting the second APs in the second AP set according to their measurement values ​​from high to low, and the fourth AP is the AP with the lowest measurement value in the second AP set; the second AP set includes at least one of the cooperative AP set and the transmission AP set; wherein, the transmission AP set includes one or more APs in the cooperative AP set used by the terminal to schedule at least one of the uplink and downlink transmissions.

[0041] In the above embodiments, when measurement reporting is triggered by an event, the event may include at least one of the above-mentioned events, which improves the timeliness of measurement reporting, improves the availability of distributed massive MIMO technology, and improves the availability of non-cellular networks.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, the measured values ​​include at least one of the following categories: Layer 1 reference signal received power (L1-RSRP); Layer 1 signal-to-interference ratio (SINR) (L1-SINR); BLER.

[0043] In the above embodiments, when the terminal performs measurement reporting, it can report at least one of the above-mentioned measurement values, which improves the timeliness and availability of measurement reporting.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, the measured reference signal RS type includes at least one of the following: synchronization signal block SSB; channel state information reference signal CSI-RS; demodulation reference signal DMRS.

[0045] In the above embodiments, the RS type measured by the terminal may include at least one of the above, and the availability is high.

[0046] Secondly, embodiments of this disclosure propose a communication method executed by a network device. The method includes: sending a measurement configuration to a terminal; wherein the measurement configuration corresponds to at least one of one or more access points (APs) and a set of one or more access points (APs), the one or more APs including at least one of cooperating APs and candidate APs, and the set of one or more APs including at least one of a set of cooperating APs and a set of candidate APs; wherein the measurement configuration is used by the terminal to trigger measurement reporting initiated by the terminal or triggered by an event when a triggering condition is met, the triggering condition being used to trigger measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report measurement results, the measurement reporting being used to report at least one of an updated set of cooperating access point APs and an updated cooperation mode.

[0047] In the above embodiments, the network device can provide measurement configuration to the terminal so that, when the triggering conditions are met, the terminal triggers measurement reporting initiated by the terminal or triggered by an event, thereby improving the timeliness of measurement reporting, improving the availability of distributed massive MIMO technology, and improving the availability of non-cellular networks.

[0048] In conjunction with some embodiments of the second aspect, in some embodiments, the triggering condition includes at least one of the following: at least one event occurs; the number of times the same event occurs within a first time window is greater than or equal to the first number; the total number of times the same or different events occur within the first time window is greater than or equal to the second number; the time interval between two adjacent measurement reports is greater than or equal to a first duration; wherein, the first time window is a time window corresponding to the same measurement configuration, or, the first time window is a time window opened in a predefined manner.

[0049] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: determining at least one of the first number of times and the second number of times based on the capabilities of the terminal; and sending at least one of the first number of times and the second number of times to the terminal.

[0050] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: sending the first duration to the terminal; wherein the first duration is the timing duration of the timeout timer.

[0051] In conjunction with some embodiments of the second aspect, in some embodiments, the event includes at least one of the following: a measurement value of one or more first APs is greater than a measurement value of a second AP, and the difference between the measurement value of the one or more first APs and the measurement value of the second AP is greater than or equal to a first threshold; a measurement value of one or more first APs is greater than a measurement value of a third AP, and the difference between the measurement value of the one or more first APs and the measurement value of the second AP is greater than or equal to a second threshold; a measurement value of one or more first APs is higher than a measurement value of a fourth AP, and the difference between the measurement value of the one or more first APs and the measurement value of the fourth AP is greater than or equal to a third threshold; the measurement of the second AP... The value is greater than the measured value of the fourth AP, and the difference between the measured value of the second AP and the measured value of the fourth AP is greater than or equal to the fourth threshold value; the measured value of the fourth AP is less than or equal to the fifth threshold value; the measured value of one or more first APs is greater than or equal to the sixth threshold value; the measured value of the fourth AP is less than or equal to the fifth threshold value, and the measured value of one or more first APs is greater than or equal to the sixth threshold value; the parameter value of one or more fifth APs is greater than or equal to the seventh threshold value; wherein, the parameter value includes at least one of the maximum power reduction P-MPR value, P-MPR change value, maximum output exposure MPE value, and MPE change value; the multi-point measured value corresponding to the second AP set is less than or equal to the seventh threshold. Values: The multipoint measurement value corresponding to the second AP set is greater than or equal to the eighth threshold value; the multipoint measurement value in the second AP set is different from the measurement values ​​of N third AP sets; the timing advance TA value of one or more second APs is greater than or equal to the first TA threshold value; the TA change value of one or more second APs is greater than or equal to the second TA threshold value; the difference in TA values ​​corresponding to different second APs in the second AP set is greater than or equal to the third TA threshold value; the path loss value corresponding to the second AP is greater than or equal to the first path loss threshold value; the path loss change value of the second AP is greater than or equal to the second path loss threshold value; the block error rate (BLER) of the first channel is less than or equal to the block error rate threshold value; a mobility LTM event triggered by Layer 1 or Layer 2. An LTM handover command was issued; an AP update request or AP set update request was detected; a terminal power saving request was detected; wherein, the first AP is any AP that meets the event, the second AP is the AP with the highest measurement value in the second AP set, the third AP is the Mth second AP determined after sorting the second APs in the second AP set according to their measurement values ​​from high to low, and the fourth AP is the AP with the lowest measurement value in the second AP set, the second AP set includes at least one of a cooperating AP set and a transmission AP set; wherein, the transmission AP set includes one or more APs in the cooperating AP set used by the terminal to schedule at least one of uplink and downlink transmissions.

[0052] In conjunction with some embodiments of the second aspect, in some embodiments, the measured values ​​include at least one of the following: Layer 1 reference signal received power (L1-RSRP); Layer 1 signal-to-interference ratio (L1-SINR); BLER.

[0053] In conjunction with some embodiments of the second aspect, in some embodiments, the measured reference signal RS type includes at least one of the following: synchronization signal block SSB; channel state information reference signal CSI-RS; demodulation reference signal DMRS.

[0054] Thirdly, embodiments of this disclosure propose a communication method for a communication system, the communication system including a terminal and a network device. The method includes: the network device sending a measurement configuration to the terminal; wherein the measurement configuration corresponds to at least one of one or more access points (APs) and a set of one or more access points (APs), the one or more APs including at least one of cooperating APs and candidate APs, and the set of one or more APs including at least one of a set of cooperating APs and a set of candidate APs; and, upon satisfying a triggering condition, the terminal triggers a measurement report initiated by the terminal or triggered by an event; wherein the triggering condition is used to trigger a measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report the measurement result, the measurement report being based on the measurement configuration and used to report at least one of an updated set of cooperating access point (APs) and an updated cooperation mode.

[0055] Fourthly, embodiments of this disclosure provide a communication device for performing the communication method described in any one of the first or second aspects.

[0056] Fifthly, embodiments of this disclosure provide a communication system including a terminal and a network device, wherein the terminal is configured to implement the communication method described in any one of the first aspects, and the network device is configured to implement the communication method described in any one of the second aspects.

[0057] In a sixth aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform a communication method as described in any one of the first or second aspects.

[0058] In a seventh aspect, embodiments of this disclosure provide a computer program product, including a computer program that, when executed by a processor, is used to implement the communication method described in any one of the first or second aspects.

[0059] It is understood that the aforementioned communication equipment, communication system, storage medium, program product, etc., are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0060] This disclosure provides a communication method, a terminal, a network device, a system, and a storage medium. In some embodiments, the terms communication method, information processing method, and information transmission method may be used interchangeably.

[0061] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0062] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0063] In this disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular or a plural expression.

[0064] In the embodiments disclosed herein, "multiple" refers to two or more.

[0065] In some embodiments, the terms “at least one of A or B, at least one of A and B”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0066] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0067] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0068] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0069] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0070] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0071] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0072] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0073] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0074] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0075] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0076] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0077] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0078] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0079] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0080] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0081] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0082] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0083] As shown in Figure 1A, the communication system 100 includes a terminal 101 and a network device 102.

[0084] In some embodiments, terminal 101 includes, for example, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home, but is not limited thereto.

[0085] In some embodiments, network device 102 may include at least one of access network device 102-1 and core network device 102-2.

[0086] In some embodiments, the access network device 102-1 is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: an evolved Node B (eNB), a next-generation eNB (ng-eNB), a next-generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.

[0087] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0088] In some embodiments, the access network device 102-2 may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. By adopting the CU-DU structure, the protocol layer of the access network device can be separated. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU, which is centrally controlled by the CU. However, this is not the only possibility.

[0089] In some embodiments, the core network device 102-2 may be a single device, including a first network element, a second network element, etc., or it may be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. Network elements may be virtual or physical. The core network may include, for example, at least one of the Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0090] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0091] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1A are illustrative. The communication system may include all or some of the main bodies in FIG1A, or it may include other main bodies outside of FIG1A. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0092] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0093] In some embodiments, a centralized configuration can generate significant antenna array gain, forming an extremely narrow beam with high spatial resolution, which is beneficial for energy focusing and multi-user spatial multiplexing. However, the centralized configuration imposes significant constraints on the low-frequency band, especially for sub-1 GHz (i.e., below 1 GHz). Due to the longer wavelengths in the low-frequency band, the antenna array aperture becomes too large, which is not conducive to the deployment of practical antennas. The distributed configuration, on the other hand, effectively solves the problem of flexible deployment in both low-frequency and high-frequency bands. In the low-frequency band, antenna modules can exist as small antenna arrays, or even as a single antenna; while in the high-frequency band, antenna modules can contain more antenna elements, thereby effectively compensating for the propagation loss caused by the high-frequency band.

[0094] In the currently proposed cellular-free network architecture, the cloud-based control unit (CCU), distributed data unit (DDU), and transmit receive point (TRP) have clear division of labor, as well as joint design and flexible deployment. This allows for services that can be dynamically added and adjusted based on user needs, and can flexibly adapt to new functions such as artificial intelligence (AI) and sensing, supporting the inherent needs of 6G intelligence and newly introduced data plane functions.

[0095] In this novel cellular-free wireless access network, as shown in Figure 1B, Edge Distributed Units (EDUs) are introduced to decouple high and low frequencies and separate spatial user data streams. User-Centered Distributed Units (UCDUs) are introduced to merge and / or distribute data streams. EDUs do not need to interact with each other; distributed detection and distributed phase-coding can be performed within the EDUs, while data merging and / or distribution are achieved in the virtualized UCDUs. Due to the decoupling of distributed processing and data streams, vDUs can be implemented in the cloud, allowing for continuous expansion of the number of collaborating nodes and cloud-based expansion of vDU processing capabilities. This overcomes the limitation of traditional centralized baseband pools in terms of computing power. Furthermore, the borderless collaboration breaks through traditional cellular limitations, demonstrating the organic integration of distributed computing and fronthaul networks.

[0096] For example, as shown in Figure 1C, distributed MIMO (dMIMO) connects multiple geographically distributed antenna arrays to a central processing unit (CPU) via fronthaul links, while multiple CPUs are connected to the core network via backhaul links. Multiple access points (APs) jointly serve the terminals within the coverage area. Because APs are closer to users, they help reduce path loss, improve communication link coverage and reliability. Distributed MIMO is a user-centric architecture, which is crucial for mitigating inter-cluster interference and maintaining system scalability. Essentially, it guarantees uniform service quality for all users, ultimately trending towards cell-free distributed massive MIMO.

[0097] In traditional centralized ultra-large-scale MIMO networks, all antenna elements are deployed at the macro base station. In contrast, in cell-free networks, antenna elements are distributed across different geographical locations in the form of Transmission and Reception Points (TRPs), achieving better diversity gain. Distributed MIMO (dMIMO) is one of the key technologies in next-generation mobile communication systems. By deploying a large number of geographically dispersed access points (APs) to serve multiple user equipment (UEs), it can significantly improve network capacity, coverage, and signal quality, achieving more efficient spectrum utilization.

[0098] Building upon a distributed network architecture, the use of distributed transmission technologies becomes even more necessary. Commonly used distributed transmission technologies include Coherent-Joint Transmission (C-JT), Non-Coherent Joint Transmission (NC-JT), and Dynamic Point Selection (DPS). Through the cooperation of multiple Transmission Points (TRPs), C-JT transmission can convert inter-TRP or inter-cell interference into useful signals, thereby improving system performance. Therefore, C-JT is a key technology for improving the performance of 6G distributed MIMO. Furthermore, NC-JT and DPS technologies can be used to address the obstruction effect of the radio channel in 6G distributed MIMO systems. By deploying a large number of distributed cooperative points in the network, distributed ultra-large-scale MIMO can effectively manage and eliminate interference between users, significantly improving the system's spectral efficiency.

[0099] In some embodiments, a unified Channel State Information (CSI) feedback framework can be adopted, such as that shown in Figure 1D, which can support different application scenarios. This feedback framework decouples CSI measurement and CSI reporting, and enables flexible CSI-RS configuration and CSI reporting configuration.

[0100] CSI can include Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Channel State Information Reference Signal Resource Indicator (CSI-RS Resource Indicator, CRI), Synchronization Signal and PBCH Block Resource Indicator (SSBRI), Layer Indicator (LI), Rank Indicator (RI), Layer 1 Reference Signal Receiving Power (L1-RSRP), and Layer 1 Signal to Interference plus Noise Ratio (L1-SINR). SSBRI, LI, and L1-RSRP are additional feedback parameters added to the CSI feedback in LTE systems. LI indicates the strongest column in the PMI and is used for Phase-Tracking Reference Signal (PT-RS) mapping. SSBRI and L1-RSRP are used for beam management; one indicates the beam index, and the other indicates the beam strength. Based on the principle of decoupling CSI measurement and CSI feedback described above, each UE can be configured with N ≥ 1 reporting settings and M ≥ 1 resource settings. Each reporting setting is associated with one or more resource settings for channel and interference measurements. For each Bandwidth Part (BWP), N ≤ 12 and M ≤ 28. For example, when used for beam management, a reporting setting can be configured, which is associated with a resource setting, and multiple CSI-RS resources in this resource setting are used for beam scanning; when used for CSI feedback, different configuration methods are used for periodic, semi-persistent, and aperiodic CSI reporting.

[0101] Resource settings can be used for beam management and CSI acquisition. Each resource setting contains S resource sets, each serving as an independent channel or interference measurement resource. Each resource set contains Ks CSI-RS resources; to flexibly support beam scanning or CSI reporting similar to LTE Class B, Ks ≥ 1. The number of aperiodic resource settings is limited; to flexibly support various application scenarios, each resource setting can contain one or more resource sets. For periodic and semi-persistent resource settings, only one resource set can be included when used for CSI acquisition.

[0102] The report setting includes configurations for the following parameters: the reported CSI quantity, CSI type (e.g., Type I or Type II), codebook parameter configuration, and codebook subset constraints. It also includes the time-domain behavior and frequency-domain granularity of PMI and CQI, as well as measurement constraint configurations. Considering different CSI reporting requirements, NR supports periodic, semi-persistent, and aperiodic CSI reporting. For aperiodic CSI reporting, one channel measurement resource and two different interference measurement resources (interference measurement is used for CSI acquisition) can be used; therefore, each report setting can be associated with 1, 2, or 3 resource settings. For periodic and semi-persistent CSI reporting, one channel measurement resource and one interference measurement resource (interference measurement is used for CSI acquisition) can be used; each report setting can be associated with 1 or 2 resource settings.

[0103] In some embodiments, the CSI feedback mechanism can be used to enable the base station to monitor the network environment. For example, the UE measures the CSI-RS and / or SSB reference signals according to the Radio Resource Control (RRC) parameters and feeds the results back to the base station via CSI. This allows the base station to understand the detailed channel status in the network and adjust strategies such as the current antenna precoding matrix and beamforming parameters. In Multi-TRP (MTRP), the uplink and downlink cooperative node sets of the same UE are the same, and different uplink and downlink cooperative nodes and uplink and downlink cooperative beams can be dynamically selected within the cooperative AP set.

[0104] The design of a distributed MIMO system can be understood as a multi-dimensional resource management problem related to cooperative set clustering, precoding, and power control. Cooperative set clustering determines the service relationship between the AP and UE, and the result of cooperative set clustering directly affects the cooperating nodes and cooperation modes, thereby affecting the transmission performance of the entire system.

[0105] In non-cellular networks, UEs can assist the network side in selecting RRUs, beams, or precoding matrices through measurement reporting. However, the measurement reporting method needs to be more flexible than in 5G systems to adapt to more flexible networking configurations. Typically, when a terminal moves within the network or is obstructed, it may involve adding and / or deleting cooperating APs, which can affect the cooperation of multiple APs.

[0106] To mitigate the impact of cooperative AP updates and improve the availability of distributed MIMO technology and non-cellular networks, this disclosure provides the following communication methods, terminals, network devices, systems, and storage media.

[0107] Figure 2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2, the embodiments of the present disclosure relate to a communication method, which includes:

[0108] In step S2101, network device 102 sends measurement configuration to terminal 101.

[0109] In some embodiments, terminal 101 receives measurement configuration.

[0110] In some embodiments, the measurement configuration corresponds to one or more APs, or at least one of one or more AP sets.

[0111] In one example, one or more APs include collaborating APs and / or candidate APs.

[0112] In one example, one or more AP sets include a collaborative AP set and / or a candidate AP set.

[0113] In one example, cooperative APs and / or a set of cooperative APs can be used to provide cooperative transmission support in a distributed network for the terminal 101.

[0114] The cooperating AP can refer to the AP currently providing uplink and / or downlink transmission services to terminal 101. The candidate AP can refer to a candidate cooperating AP that supports providing uplink and / or downlink transmission services to terminal 101.

[0115] The set of cooperating APs can refer to the set of APs currently providing uplink and / or downlink transmission services to terminal 101. The set of candidate APs can refer to the set of candidate cooperating APs that support providing uplink and / or downlink transmission services to terminal 101.

[0116] In some embodiments, network device 102 may send measurement configuration to terminal 101 to improve the timeliness of updates to the cooperative AP set and / or cooperative mode.

[0117] In one example, the cooperation method can refer to the way collaborative APs cooperate in transmission.

[0118] For example, the collaboration method may include, but is not limited to, at least one of the following: Dynamic Point Blanking (DPB); DPS; C-JT; NC-JT; or a combination of at least two of DPB, DPS, C-JT, and NC-JT, such as a combination of C-JT and NC-JT. This disclosure does not limit the scope of the collaboration method.

[0119] In one example, the name of the cooperating AP is not limited and can be interchanged with "service AP", "cooperating transport AP", etc.

[0120] In one example, the name of the cooperative AP set is not limited and can be interchanged with "service AP set", "cooperative transport AP set", etc.

[0121] In one example, the name of the candidate AP is not limited and can be interchanged with "candidate service AP", "candidate cooperative transport AP", etc.

[0122] In one example, the name of the candidate AP set is not limited and can be interchanged with "candidate service AP set", "candidate cooperative transport AP set", etc.

[0123] In some embodiments, network device 102 may send measurement configuration to terminal 101 based on its own implementation and / or its own policies.

[0124] In some embodiments, network device 102 may send measurement configuration to terminal 101 based on a request from terminal 101.

[0125] In some embodiments, network device 102 supports sending measurement configuration to terminal 101 when providing cooperative transmission in a distributed network for terminal 101.

[0126] The above is merely an illustrative example, and this disclosure does not limit the timing or conditions under which the network device 102 is triggered to send measurement configuration.

[0127] In some embodiments, network device 102 may send one or more measurement configurations to terminal 101. This disclosure does not limit the number of measurement configurations.

[0128] In some embodiments, the name of the measurement configuration is not limited and can be interchanged with "configuration information", "measurement configuration parameters", etc.

[0129] In step S2102, terminal 101 triggers a measurement report initiated by the terminal or triggered by an event.

[0130] In some embodiments, the measurement report is initiated by the terminal 101, or the measurement report is triggered by an event.

[0131] In some embodiments, the measurement reporting is based on the measurement configuration.

[0132] In some embodiments, the measurement reporting can be used to update at least one of the collaborative AP set and the collaboration method. The contents of the collaborative AP set and the collaboration method have already been described in the preceding steps and will not be repeated here.

[0133] In some embodiments, terminal 101 may trigger the measurement reporting if the triggering conditions are met.

[0134] In some embodiments, the triggering condition may be used to trigger a measurement initiated by the terminal or based on an event, and to trigger the terminal 101 to report the measurement result.

[0135] In one example, the triggering condition can be determined based on a predefined method, such as by a protocol agreement.

[0136] In one example, the triggering conditions can be configured by network device 102.

[0137] In one example, the triggering conditions may be determined based on a predefined method and the configuration of network device 102, which is not limited in this disclosure.

[0138] In one example, the triggering conditions include, but are not limited to, at least one of the following: at least one event occurs; the number of times the same event occurs within a first time window is greater than or equal to the first number; the total number of times the same or different events occur within a first time window is greater than or equal to the second number; the time interval between two consecutive measurement reports is greater than or equal to a first duration.

[0139] For example, the above events may include, but are not limited to, at least one of the following: a measurement value of one or more first APs is greater than a measurement value of a second AP, and the difference between the measurement value of the one or more first APs and the measurement value of the second AP is greater than or equal to a first threshold; a measurement value of one or more first APs is greater than a measurement value of a third AP, and the difference between the measurement value of the one or more first APs and the measurement value of the second AP is greater than or equal to a second threshold; a measurement value of one or more first APs is higher than a measurement value of a fourth AP, and the difference between the measurement value of the one or more first APs and the measurement value of the fourth AP is greater than or equal to a third threshold; a measurement value of a second AP is greater than a measurement value of a fourth AP, and the difference between the measurement value of the second AP and the measurement value of the fourth AP is greater than or equal to a fourth threshold; a measurement value of a fourth AP is less than or equal to a fifth threshold; a measurement value of one or more first APs is greater than or equal to a sixth threshold; a measurement value of a fourth AP is less than or equal to a fifth threshold, and a measurement value of one or more first APs is greater than or equal to a sixth threshold; a parameter value of one or more fifth APs is greater than or equal to a seventh threshold; wherein the parameter value includes the maximum power reduction for power management (Power... At least one of the following: management-Maximum Power Reduction (P-MPR) value, P-MPR change value, Maximum Permissible Exposure (MPE) value, and MPE change value; the multipoint measurement value corresponding to the second AP set is less than or equal to the seventh threshold value; the multipoint measurement value corresponding to the second AP set is greater than or equal to the eighth threshold value; the multipoint measurement value in the second AP set is different from the measurement values ​​of N third AP sets; the timing advance TA value of one or more second APs is greater than or equal to the first TA threshold value; the TA change value of one or more second APs is greater than or equal to the second TA threshold value; the difference in TA values ​​corresponding to different second APs in the second AP set is greater than or equal to the third TA threshold value; the path loss value corresponding to the second AP is greater than or equal to the first path loss threshold value; the path loss change value of the second AP is greater than or equal to the second path loss threshold value; the block error rate (BLER) of the first channel is less than or equal to the block error rate threshold value; Layer 1 or Layer 2 triggered mobility (Layer 1 / Layer 2 Triggered) Mobility (LTM) events triggered LTM handover commands; AP update requests or AP set update requests were detected; terminal power saving requests were detected.

[0140] The first AP is any AP that meets the event, i.e., the new AP corresponding to terminal 101.

[0141] Wherein, the second AP is the AP with the highest measurement value in the second AP set, the second AP set includes at least one of the cooperative AP set and the transmission AP set, and the transmission AP set includes one or more APs in the cooperative AP set used by the terminal to schedule at least one of the uplink transmission and downlink transmission.

[0142] The third AP is the Mth second AP determined by sorting the second APs in the second AP set from high to low according to the measured values. The second AP set includes at least one of the cooperative AP set and the transmission AP set. The transmission AP set includes one or more APs in the cooperative AP set used by the terminal to schedule at least one of the uplink and downlink transmissions.

[0143] The fourth AP is the AP with the lowest measurement value in the second AP set. The second AP set includes at least one of the cooperative AP set and the transmission AP set. The transmission AP set includes one or more APs in the cooperative AP set used by the terminal to schedule at least one of the uplink and downlink transmissions.

[0144] The first channel may include, but is not limited to, at least one of the following: Physical Uplink Shared Channel (PUSCH); Physical Downlink Control Channel (PUCCH); Physical Uplink Control Channel (PUCCH).

[0145] The above is merely an illustrative example, and this disclosure does not limit the specific content of the event.

[0146] If at least one of the above events occurs, terminal 101 can determine that the triggering condition is met.

[0147] For example, the first time window can be a time window corresponding to the same measurement configuration, or the first time window can be a time window opened in a predefined manner.

[0148] Different measurement configurations can correspond to different time window sizes.

[0149] The first time window can be opened in a manner agreed upon in the protocol, for example.

[0150] For example, the first number can be determined by network device 102 based on the terminal's capabilities and sent by network device 102 to terminal 101.

[0151] For example, the first number can be determined based on a predefined method, and this disclosure does not limit it.

[0152] For example, the triggering condition includes a second event occurring more than or equal to the first event within a first time window if the number of occurrences of the same event within the first time window is greater than or equal to the first event. In this case, terminal 101 can reset the counter and / or reset the starting position of the first time window. The second event is different from the first event, which is the first event to begin counting within the first time window. The counter can be used to determine the number of times an event occurs.

[0153] The name of the counter is not limited and can be interchanged with "event occurrence counter" or "event counter".

[0154] Understandably, within the first time window, different events are counted and accumulated independently. When a second event, different from the initial count, meets the triggering condition, the occurrence counter within the first time window can be reset, and / or the starting position of the first time window can be reset.

[0155] If the same event, for example, the block error rate of the first channel is less than or equal to the block error rate threshold, occurs a number of times within the first time window that reaches or exceeds the number of occurrences of the first event, then the terminal 101 can determine that the triggering condition is met, thereby effectively avoiding the ping-pong effect.

[0156] For example, the second number can be determined by network device 102 based on the terminal's capabilities and sent by network device 102 to terminal 101.

[0157] For example, the second number can be determined based on a predefined method, and this disclosure does not limit it.

[0158] If the total number of the same event occurring within the first time window reaches or exceeds the second number, or if the total number of different events occurring within the first time window reaches or exceeds the second number, then terminal 101 can determine that the triggering condition is met.

[0159] For example, the first duration can be determined by network device 102 and sent by network device 102 to terminal 101.

[0160] For example, the first duration can be determined based on a predefined method, and this disclosure does not limit it.

[0161] For example, after reporting the measurement, terminal 101 may start a timeout timer, the duration of which is a first duration. Before the timeout timer expires, terminal 101 will not report the measurement again, thereby effectively avoiding the ping-pong effect.

[0162] In one example, the above events can be defined separately as AP updates or AP set updates, thus applicable to triggering updates to collaborative APs or collaborative AP sets, respectively.

[0163] In one example, the measurement may include, but is not limited to, at least one of the following: L1-RSRP; L1-SINR; BLER.

[0164] In one example, the type of the reference signal RS being measured may include, but is not limited to, at least one of the following: Synchronization Signal and PBCH Block (SSB); Channel State Information-Reference Signal (CSI-RS); Demodulation Reference Signal (DMRS).

[0165] The CSI-RS may include, but is not limited to, at least one of the following: CSI-RS for Beam Management (CSI-RS for BM); CSI-RS for Channel State Information (CSI-RS for CSI); and CSI-RS for Mobility.

[0166] The above is merely an illustrative example, and this disclosure does not limit the type of RS measured by terminal 101.

[0167] In some embodiments, network device 102 receives the result of the measurement report.

[0168] In one example, network device 102 updates the set of cooperating APs and / or the cooperation method based on the results of measurement reporting.

[0169] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0170] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" can be used interchangeably. For example, a codebook can be a collection of one or more codewords / precoding matrices.

[0171] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0172] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0173] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".

[0174] In some embodiments, the terms "synchronization signal (SS)," "synchronization signal block (SSB)," "reference signal (RS)," "pilot," and "pilot signal" can be used interchangeably.

[0175] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0176] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) status", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", and "panel" can be used interchangeably.

[0177] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0178] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0179] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0180] The communication method involved in the embodiments of this disclosure may include steps S2101 to S2102. For example, step S2101 may be implemented as a standalone embodiment, step S2102 may be implemented as a standalone embodiment, and step S2101+S2102 may be implemented as a standalone embodiment, but is not limited thereto.

[0181] In some embodiments, steps S2101 and S2102 may be performed in an alternate order or simultaneously.

[0182] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or substituted in different embodiments. For example, if terminal 101 obtains the measurement configuration from another device or determines the measurement configuration based on a predefined method, step S2101 may not be performed.

[0183] In some embodiments, step S2102 is optional, and one or more of these steps may be omitted or substituted in different embodiments. For example, if terminal 101 reports measurements based on a trigger or indication from network device 102, step S2102 may not be executed.

[0184] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0185] The above embodiments improve the timeliness of measurement reporting, enhance the availability of distributed massive MIMO technology, and improve the availability of non-cellular networks.

[0186] Figure 3A is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 3A, the embodiment of the present disclosure relates to a communication method, which is executed by terminal 101 and includes:

[0187] Step S3101: Trigger a measurement report initiated by the terminal or triggered by an event.

[0188] In some embodiments, optional implementations of step S3101 can be found in optional implementations of step S2102 in FIG2 and other related parts in the embodiments involved in FIG2, which will not be repeated here.

[0189] The above embodiments improve the timeliness of measurement reporting, enhance the availability of distributed massive MIMO technology, and improve the availability of non-cellular networks.

[0190] Figure 3B is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 3B, the embodiment of the present disclosure relates to a communication method, which is executed by network device 102 and includes:

[0191] Step S3201: Send measurement configuration.

[0192] In some embodiments, network device 102 sends measurement configuration to terminal 101.

[0193] In some embodiments, terminal 101 receives measurement configuration.

[0194] In the above embodiments, the network device can provide measurement configuration to the terminal so that, when the triggering conditions are met, the terminal triggers measurement reporting initiated by the terminal or triggered by an event, thereby improving the timeliness of measurement reporting, improving the availability of distributed massive MIMO technology, and improving the availability of non-cellular networks.

[0195] The above process is further illustrated with examples below.

[0196] Example 1 provides a method for triggering measurement reporting of AP / AP set initiated by the terminal / event triggered, the specific method is as follows:

[0197] Terminal-triggered measurement reporting requires the definition of triggering events and the confirmation of triggering conditions.

[0198] The cooperative AP / AP set can refer to an AP or AP set used to provide cooperative transmission support in a distributed network for the terminal 101.

[0199] The current transmission AP / AP set (or cooperative AP / AP set) can refer to the AP / AP set in the cooperative AP set used by the current transmission scheduling.

[0200] The candidate AP / AP set can refer to the set of APs / APs in the candidate measurements.

[0201] The new AP / AP set can refer to APs that meet the event triggering requirements. The new AP / AP set may belong to a collaborative AP group or a candidate AP group.

[0202] In this embodiment of the disclosure, the triggering event for AP / AP set update reporting is defined as follows:

[0203] 1. One or more new APs have better transmission quality than the best receiving AP in the cooperating AP set or the current transmission AP set, numerically exceeding the gate threshold.

[0204] 2. One or more new APs have better transmission quality than the Mth best AP in the set of cooperating APs or the current set of transmitting APs, numerically exceeding the gate threshold; M is the network configuration.

[0205] 3. One or more new APs have better transmission quality than the AP with the worst reception quality in the set of cooperating APs or the current set of transmitting APs, and are numerically higher than the gate threshold.

[0206] 4. The reception quality of the AP with the worst reception quality in the cooperative AP set or the current transmission AP set is greater than a threshold value compared to the AP with the best reception quality.

[0207] 5. The AP with the worst reception quality in the cooperative AP set or the current transmission AP set has a reception quality below the threshold.

[0208] 6. The new AP transmission quality values ​​are higher than the threshold.

[0209] 7. The AP with the worst reception quality in the cooperative AP set or the current transmission AP set has a reception quality lower than the threshold of 1, and the new AP's transmission quality value is higher than the threshold of 2.

[0210] 8. When the terminal detects that the absolute value or change value of P-MPR / MPE exceeds the threshold, the AP (uplink limited) in the beam direction corresponding to the event.

[0211] 9. The reception quality of multiple points in the cooperative AP set or the current transmission AP set is below the threshold.

[0212] 10. The new AP set has higher multi-point transmission quality values ​​than the threshold.

[0213] 11. The multipoint reception quality in the cooperative AP set or the current transmission AP set is not among the top N AP sets configured best. N is configured by the network.

[0214] 12. The absolute value or change value of the TA corresponding to an AP in the cooperative AP set or the current transmission AP set is greater than the threshold value.

[0215] 13. The TA difference between different APs in the cooperative AP set or the current transmission AP set is greater than the threshold value.

[0216] 14. The absolute value of PL or the change value of PL corresponding to an AP in the cooperative AP set or the current transmission AP set is greater than the threshold value.

[0217] 15. The demodulation performance of PDSCH / PUSCH degrades, and the estimated BLER is lower than the threshold value.

[0218] 16. The demodulation performance of PDCCH degrades, and the estimated BLER is lower than the threshold value.

[0219] 17. The LTM event triggers the LTM switching command.

[0220] 18. AI-suggested AP / AP set update requirements.

[0221] 19. Sensor Sensing prompts AP / AP set update requirements.

[0222] 20. Terminal power saving requirements.

[0223] The triggering events above can also be defined separately according to AP update and AP set update, which are suitable for triggering measurement reporting methods based on AP update or AP set update, respectively.

[0224] Optional measurements include: L1-RSRP; L1-SINR; BLER.

[0225] The measurement reference signal may be: SSB, CSI-RS for BM, CSI-RS for CSI, CSI-RS for mobility, DMRS.

[0226] When a terminal performs measurements on an AP / AP set within a configured measurement set, it can use at least one of the following methods to determine the actual measurement reporting time triggered by the event:

[0227] Option 1 (Opt.1): At least one triggering event occurs;

[0228] Opt.2: The same triggering event occurs more than M times within a configured time window, where M is configured by the network.

[0229] Different events are counted and accumulated independently within the time window;

[0230] Depends on the capabilities of the terminal;

[0231] Opt.3: The time since the last trigger report cannot be less than the expire timer setting; a new timeout timer needs to be introduced.

[0232] Opt.2 and Opt.3 can avoid the ping-pong effect, which can lead to frequent changes in collaborative APs or AP sets.

[0233] In the above embodiments, a measurement reporting triggering method for AP / AP sets triggered by terminal triggering or event triggering is designed to trigger the corresponding measurement reporting, so as to better provide relevant information on AP selection on the network side, while also considering the acquisition method of the reported uplink resources.

[0234] In some embodiments, the terminal may determine the set of measurement APs based on the measurement configuration, which is considered as having performed the aforementioned step S2101.

[0235] The measurement AP set may include the collaborative AP set and / or candidate AP set in the aforementioned step S2101.

[0236] In some embodiments, events may be agreed upon by the agreement, and these events may include, but are not limited to, at least one of the events described above.

[0237] In one example, the number and content of events are not limited.

[0238] In one example, the name of the event is not limited and can be interchanged with "trigger event" or "terminal-initiated measurement reporting event".

[0239] In one example, the terminal can trigger a measurement report initiated by itself if the triggering conditions are met. At this time, the terminal is considered to have executed the aforementioned step S2102.

[0240] For example, the terminal can determine that the triggering condition is met if at least one of the aforementioned triggering events has occurred.

[0241] For example, a terminal can determine that the triggering condition is met if the same triggering event occurs more than M times within a configured time window.

[0242] M can be defined by the protocol and / or configured by the network side.

[0243] For example, different events can be counted and / or accumulated independently within a time window.

[0244] For example, the size of M depends on the terminal capability.

[0245] For example, the terminal can determine that the triggering condition is met if the time since the last trigger report is not less than the timeout timer setting.

[0246] Among these, a new timeout timer can be introduced.

[0247] For example, a terminal can determine that a triggering condition is met if the same or different events occur more than or equal to N times within a time window.

[0248] N can be defined by the protocol and / or configured by the network side.

[0249] For example, the size of N depends on the terminal capability.

[0250] The terminal can determine that the triggering condition is met by using at least one of the above methods. Further, the terminal can determine the measurement reference signal based on the measurement configuration, and perform measurements on the APs and / or the AP set in the measurement AP set based on the measurement configuration to determine the measurement result. At this time, it is considered that the terminal has executed the aforementioned step S2102.

[0251] In one example, CSI measurement reporting, measurement results, and CSI reports can be considered equivalent.

[0252] In some embodiments, after determining the measurement AP set, the terminal may perform other operations, such as providing the determined measurement set to other devices for measurement reporting. As another example, the terminal may update the measurement configuration based on the determined measurement set; this disclosure does not limit this to specific actions.

[0253] In some embodiments, a terminal can trigger measurement reporting initiated by the terminal or triggered based on events. The measurement AP set can be determined in other ways, such as being provided directly to the terminal by other terminals or network devices. The terminal can automatically initiate measurement reporting when triggering conditions are met, or trigger event-based measurement reporting.

[0254] In some embodiments, one or more steps, one or more technical features, or one or more technical solutions in Embodiment 1 can be executed individually or in combination with one or more steps, one or more technical features, or one or more technical solutions in the aforementioned Embodiment 2. For example, one or more of the triggering events defined in Embodiment 1 can be executed individually. As another example, at least one of the triggering events defined in Embodiment 1 can be combined with the measurement configuration in step S2101. As yet another example, the first step can be combined with the aforementioned step S2103. As yet another example, the step or method in Embodiment 1 where the terminal measures the AP / AP set in the configured measurement set and determines the actual measurement reporting time for event triggering can be combined with step S2102 in the aforementioned Figure 2. Whether or not they are combined, and the method of combination, is not limited in this disclosure.

[0255] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0256] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0257] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0258] Figure 4A is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. The terminal 4100 is used to execute any of the above methods. In some embodiments, as shown in Figure 4A, the terminal 4100 may include a processing module 4101.

[0259] In some embodiments, the processing module 4101 is configured to meet a triggering condition to trigger a measurement report initiated by the terminal or triggered by an event; wherein the triggering condition is configured to trigger a measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report the measurement result, the measurement report is based on a measurement configuration, and is configured to report at least one of the updated cooperative access point (AP) set and the updated cooperative mode, wherein the measurement configuration corresponds to at least one of one or more APs or one or more AP sets, and the cooperative AP set is configured to provide cooperative transmission support in a distributed network for the terminal; wherein the one or more APs include at least one of cooperative APs and candidate APs, and the one or more AP sets include at least one of cooperative AP sets and candidate AP sets.

[0260] Optionally, the above processing module is used to execute at least one of the other steps (such as step S2102, but not limited thereto) executed by terminal 101 in any of the above methods, which will not be described in detail here.

[0261] Figure 4B is a schematic diagram of the structure of an access network device according to an embodiment of this disclosure. Network device 4200 is used to perform any of the above methods. In some embodiments, as shown in Figure 4B, network device 4200 may include a transceiver module 4102.

[0262] In some embodiments, the transceiver module 4102 is used to send a measurement configuration to a terminal; wherein the measurement configuration corresponds to at least one of one or more access points (APs) and one or more sets of access points (APs), the one or more APs include at least one of cooperating APs and candidate APs, and the one or more sets of APs include at least one of a set of cooperating APs and a set of candidate APs; wherein the measurement configuration is used by the terminal to trigger a measurement report initiated by the terminal or triggered by an event when a triggering condition is met, the triggering condition is used to trigger a measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report the measurement result, the measurement report is used to report at least one of the updated set of cooperating access point APs and the updated cooperation mode.

[0263] Optionally, the transceiver module is used to perform at least one of the communication steps (such as step S2101, but not limited thereto) performed by the network device 102 in any of the above methods, which will not be described in detail here.

[0264] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0265] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0266] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0267] Figure 5A is a schematic diagram of the structure of the communication device 5100 proposed in an embodiment of this disclosure. The communication device 5100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 5100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0268] As shown in Figure 5A, the communication device 5100 is used to execute any of the above methods. In some embodiments, the communication device 5100 includes one or more processors 5101. The processor 5101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 5100 is used to execute any of the above methods. Optionally, one or more processors 5101 are used to invoke instructions to cause the communication device 5100 to execute any of the above methods.

[0269] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 performs at least one of the communication steps (e.g., step S2101, but not limited thereto) in the above method, such as sending and / or receiving, and the processor 5101 performs at least one of other steps (e.g., step S2102, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0270] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data and / or instructions. Optionally, one or more processors 5101 are used to invoke instructions stored in the memory 5103 to cause the communication device 5100 to perform any of the above methods. Optionally, all or part of the memory 5103 may also be located outside the communication device 5100. In an optional embodiment, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5102 and can be used to receive data and / or instructions from the memory 5102 or other devices, and can be used to send data and / or instructions to the memory 5102 or other devices. For example, the interface circuit 5104 can read data and / or instructions stored in the memory 5102 and send the data and / or instructions to the processor 5101.

[0271] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in this disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5A. The communication device may be a standalone device or may be part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0272] Figure 5B is a schematic diagram of the structure of the chip 5200 proposed in an embodiment of this disclosure. For cases where the communication device 5100 can be a chip or a chip system, the schematic diagram of the chip 5200 shown in Figure 5B can be referred to, but is not limited thereto.

[0273] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.

[0274] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 5200 further includes one or more memories 5203 for storing data and / or instructions. Optionally, all or part of the memories 5203 may be located outside of chip 5200. Optionally, the interface circuit 5202 is connected to the memories 5203, and the interface circuit 5202 can be used to receive data and / or instructions from the memories 5203 or other devices, and the interface circuit 5202 can be used to send data and / or instructions to the memories 5203 or other devices. For example, the interface circuit 5202 can read data and / or instructions stored in the memories 5203 and send the data and / or instructions to the processor 5201.

[0275] In some embodiments, the interface circuit 5202 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., step S2101, but not limited thereto). The interface circuit 5202 performing the communication steps such as sending and / or receiving in the above-described method refers, for example, to the interface circuit 5202 performing data and / or instruction interaction between the processor 5201, the chip 5200, the memory 5203, or the transceiver device. In some embodiments, the processor 5201 performs at least one of other steps (e.g., step S2102, but not limited thereto).

[0276] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0277] This disclosure also proposes a communication device, which can be a terminal. When the communication device is a terminal, it can be used to execute any of the methods described above performed on the terminal side.

[0278] This disclosure also proposes a communication device, which can be a network device. When the communication device is a network device, it can perform any of the methods described above performed by the network function side. The communication device may include, but is not limited to, at least one of access network devices and core network devices.

[0279] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0280] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0281] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

[0282] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A communication method, characterized in that, The method is executed by a terminal, and the method includes: If the triggering condition is met, a measurement report initiated by the terminal or triggered by an event is triggered; wherein, the triggering condition is used to trigger a measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report the measurement result, the measurement report is based on the measurement configuration, and is used to report at least one of the updated cooperative access point (AP) set and the updated cooperative mode, wherein the measurement configuration corresponds to at least one of one or more APs or one or more AP sets, and the cooperative AP set is used to provide cooperative transmission support in the distributed network for the terminal; wherein, the one or more APs include at least one of cooperative APs and candidate APs, and the one or more AP sets include at least one of cooperative AP sets and candidate AP sets.

2. The method according to claim 1, characterized in that, The triggering condition includes at least one of the following: At least one event occurred; The same event occurs more than or equal to the first occurrence within the first time window; The total number of times the same or different events occur within the first time window is greater than or equal to the number of times they occur in the second time window; The time interval between two consecutive measurement reports is greater than or equal to the first duration; Wherein, the first time window is a time window corresponding to the same measurement configuration, or the first time window is a time window opened in a predefined manner.

3. The method according to claim 2, characterized in that, The triggering condition includes that the number of times the same event occurs within the first time window is greater than or equal to the number of times it occurs the first time, and the method also includes at least one of the following: If the number of times the second event occurs within the first time window is greater than or equal to the first number, the counter is reset; wherein, the counter is used to determine the number of times the event occurs; Reset the starting position of the first time window; The second event is different from the first event, which is the first event to start counting within the first time window.

4. The method according to claim 2 or 3, characterized in that, The method further includes: The network device receives at least one of the first number of times and the second number of times; wherein the first number of times is determined by the network device based on the capabilities of the terminal, and the second number of times is determined by the network device based on the capabilities of the terminal.

5. The method according to any one of claims 2-4, characterized in that, The method further includes: Receive the first duration sent by the network device; After the measurement is reported, a timeout timer is started, and the timeout timer duration is the first duration; wherein, the measurement cannot be reported again before the timeout timer expires.

6. The method according to any one of claims 1-5, characterized in that, The event includes at least one of the following: One or more first AP measurements are greater than the second AP measurements, and the difference between the measurements of the one or more first APs and the measurements of the second AP is greater than or equal to a first threshold value; The measured value of one or more first APs is greater than the measured value of a third AP, and the difference between the measured value of the one or more first APs and the measured value of the second AP is greater than or equal to a second threshold value; The measured value of one or more first APs is higher than the measured value of the fourth AP, and the difference between the measured value of the one or more first APs and the measured value of the fourth AP is greater than or equal to the third threshold value; The measured value of the second AP is greater than the measured value of the fourth AP, and the difference between the measured value of the second AP and the measured value of the fourth AP is greater than or equal to the fourth threshold value. The measured value of the fourth AP is less than or equal to the fifth threshold value; One or more measurements of the first AP are greater than or equal to the sixth threshold value; The measured value of the fourth AP is less than or equal to the fifth threshold, and the measured values ​​of one or more first APs are greater than or equal to the sixth threshold; One or more fifth AP parameter values ​​are greater than or equal to the seventh threshold value; wherein, the parameter value includes at least one of the maximum power reduction P-MPR value, P-MPR change value, maximum output exposure MPE value, and MPE change value; The multi-point measurement value corresponding to the second AP set is less than or equal to the seventh threshold value; The multi-point measurement value corresponding to the second AP set is greater than or equal to the eighth threshold value; The measurements at multiple points in the second AP set are different from the measurements in the N third AP sets; The timing advance TA value of one or more second APs is greater than or equal to the first TA threshold value; One or more second APs have TA changes greater than or equal to the second TA threshold value; The difference in TA values ​​corresponding to different second APs in the second AP set is greater than or equal to the third TA threshold value; The road loss value corresponding to the second AP is greater than or equal to the first road loss threshold value; The change in road loss for the second AP is greater than or equal to the second road loss threshold. The block error rate (BLER) of the first channel is less than or equal to the block error rate threshold. A mobility LTM event triggered by Layer 1 or Layer 2 triggers an LTM handover command; An AP update request or an AP set update request has been detected. The terminal's power-saving requirement was detected; Wherein, the first AP is any AP that meets the event, the second AP is the AP with the highest measurement value in the second AP set, the third AP is the Mth second AP determined after sorting the second APs in the second AP set according to their measurement values ​​from high to low, and the fourth AP is the AP with the lowest measurement value in the second AP set. The second AP set includes at least one of the cooperative AP set and the transmission AP set; wherein, the transmission AP set includes one or more APs in the cooperative AP set used by the terminal to schedule at least one of the uplink and downlink transmissions.

7. The method according to claim 6, characterized in that, The measured values ​​include at least one of the following categories: Layer 1 reference signal received power L1-RSRP; Layer 1 signal-to-interference ratio (SINR) L1-SINR; BLER.

8. The method according to any one of claims 1-7, characterized in that, The reference signal RS type for measurement includes at least one of the following: Synchronization Signal Block (SSB); Channel State Information Reference Signal (CSI-RS); Demodulation reference signal DMRS.

9. A communication method, characterized in that, The method is performed by a network device, and the method includes: A measurement configuration is sent to the terminal; wherein the measurement configuration corresponds to at least one of one or more access points (APs) and at least one of one or more sets of access points (APs), wherein the one or more APs include at least one of cooperating APs and candidate APs, and the one or more AP sets include at least one of a set of cooperating APs and a set of candidate APs; wherein the measurement configuration is used by the terminal to trigger measurement reporting initiated by the terminal or triggered by an event when a triggering condition is met, wherein the triggering condition is used to trigger measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report the measurement results, wherein the measurement reporting is used to report at least one of the updated set of cooperating access point (APs) and the updated cooperation mode.

10. The method according to claim 9, characterized in that, The triggering condition includes at least one of the following: At least one event occurred; The same event occurs more than or equal to the first occurrence within the first time window; The total number of times the same or different events occur within the first time window is greater than or equal to the number of times they occur in the second time window; The time interval between two consecutive measurement reports is greater than or equal to the first duration; Wherein, the first time window is a time window corresponding to the same measurement configuration, or the first time window is a time window opened in a predefined manner.

11. The method according to claim 10, characterized in that, The method further includes: Based on the capabilities of the terminal, at least one of the first number of times and the second number of times is determined; Send at least one of the first number of times and the second number of times to the terminal.

12. The method according to claim 10 or 11, characterized in that, The method further includes: The first duration is sent to the terminal; wherein the first duration is the timing duration of the timeout timer.

13. The method according to any one of claims 9-12, characterized in that, The event includes at least one of the following: One or more first AP measurements are greater than the second AP measurements, and the difference between the measurements of the one or more first APs and the measurements of the second AP is greater than or equal to a first threshold value; The measured value of one or more first APs is greater than the measured value of a third AP, and the difference between the measured value of the one or more first APs and the measured value of the second AP is greater than or equal to a second threshold value; The measured value of one or more first APs is higher than the measured value of the fourth AP, and the difference between the measured value of the one or more first APs and the measured value of the fourth AP is greater than or equal to the third threshold value; The measured value of the second AP is greater than the measured value of the fourth AP, and the difference between the measured value of the second AP and the measured value of the fourth AP is greater than or equal to the fourth threshold value. The measured value of the fourth AP is less than or equal to the fifth threshold value; One or more measurements of the first AP are greater than or equal to the sixth threshold value; The measured value of the fourth AP is less than or equal to the fifth threshold, and the measured values ​​of one or more first APs are greater than or equal to the sixth threshold; One or more fifth AP parameter values ​​are greater than or equal to the seventh threshold value; wherein, the parameter value includes at least one of the maximum power reduction P-MPR value, P-MPR change value, maximum output exposure MPE value, and MPE change value; The multi-point measurement value corresponding to the second AP set is less than or equal to the seventh threshold value; The multi-point measurement value corresponding to the second AP set is greater than or equal to the eighth threshold value; The measurements at multiple points in the second AP set are different from the measurements in the N third AP sets; The timing advance TA value of one or more second APs is greater than or equal to the first TA threshold value; One or more second APs have TA changes greater than or equal to the second TA threshold value; The difference in TA values ​​corresponding to different second APs in the second AP set is greater than or equal to the third TA threshold value; The road loss value corresponding to the second AP is greater than or equal to the first road loss threshold value; The change in road loss for the second AP is greater than or equal to the second road loss threshold. The block error rate (BLER) of the first channel is less than or equal to the block error rate threshold. A mobility LTM event triggered by Layer 1 or Layer 2 triggers an LTM handover command; An AP update request or an AP set update request has been detected. The terminal's power-saving requirement was detected; Wherein, the first AP is any AP that meets the event, the second AP is the AP with the highest measurement value in the second AP set, the third AP is the Mth second AP determined after sorting the second APs in the second AP set according to their measurement values ​​from high to low, and the fourth AP is the AP with the lowest measurement value in the second AP set. The second AP set includes at least one of a cooperative AP set and a transmission AP set; wherein, the transmission AP set includes one or more APs in the cooperative AP set used by the terminal to schedule at least one of the uplink and downlink transmissions.

14. The method according to claim 13, characterized in that, The measured value includes at least one of the following: Layer 1 reference signal received power L1-RSRP; Layer 1 signal-to-interference ratio (L1-SINR); BLER.

15. The method according to any one of claims 9-14, characterized in that, The reference signal RS type for measurement includes at least one of the following: Synchronization Signal Block (SSB); Channel State Information Reference Signal (CSI-RS); Demodulation reference signal DMRS.

16. A communication method, the method being used in a communication system, the communication system comprising a terminal and a network device, characterized in that, The method includes: The network device sends a measurement configuration to the terminal; wherein the measurement configuration corresponds to at least one of one or more access points (APs) and at least one of one or more sets of access points (APs), the one or more APs include at least one of cooperating APs and candidate APs, and the one or more sets of APs include at least one of a set of cooperating APs and a set of candidate APs; If the triggering condition is met, the terminal triggers a measurement report initiated by the terminal or triggered by an event; wherein, the triggering condition is used to trigger a measurement initiated by the terminal or triggered by an event, and to trigger the terminal to report the measurement result, the measurement report is based on the measurement configuration, and is used to report at least one of the updated set of cooperative access points (APs) and the updated cooperative mode.

17. A communication device, characterized in that, The communication device is used to perform the communication method according to any one of claims 1-8 or 9-15.

18. A communication system, characterized in that, The device includes a terminal and a network device, wherein the terminal is configured to implement the communication method of any one of claims 1-8, and the network device is configured to implement the communication method of any one of claims 9-15.

19. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, it causes the communication device to perform the communication method as described in any one of claims 1-8 or 9-15.

20. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program is used to implement the communication method according to any one of claims 1-8 or 9-15.

Images