An interference measurement method, a communication device and a storage medium

Abstract

The present disclosure relates to an interference measurement method, a communication device and a storage medium, comprising: determining a receiving time of a reference signal, wherein there is an offset between the receiving time and a downlink (DL) time slot boundary; receiving the reference signal based on the receiving time, and performing interference measurement. The present disclosure determines the receiving time of the reference signal with the offset from the downlink time slot boundary, so as to perform the interference measurement, thereby improving the interference measurement accuracy and reducing the complexity of the interference measurement.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to an interference measurement method, a communication device, and a storage medium. Background Technology

[0002] In related technologies, in dynamic time division duplex (DTDD) scenarios, to improve uplink communication performance, the proportion of uplink (UL) transmission time slots is increased in the TDD configuration. If neighboring cells use a legacy DTDD architecture, this will cause inconsistencies in the transmission directions of the two cells, leading to severe interference.

[0003] To measure interference between multiple terminals in two adjacent cells, cross-link interference (CLI) can be measured by having the terminals transmit reference signals. For example, terminal 1 in an adjacent cell transmits a reference signal, and terminal 2 in the serving cell receives the reference signal and performs the measurement. Terminal 2 can be called the serving terminal, and terminal 1 can be called the aggressor terminal. The serving terminal can also be called the victim terminal.

[0004] However, there is a certain time error between the arrival time of the reference signal received by the victim terminal from the aggressor terminal and the downlink transmission time allocated to the victim terminal. This causes the victim terminal to be unable to accurately know the time of receiving the reference signal, resulting in low CLI measurement accuracy. Summary of the Invention

[0005] To overcome the problems existing in related technologies, this disclosure provides an interference measurement method, a communication device, and a storage medium.

[0006] According to a first aspect of the present disclosure, an interference measurement method is provided, the method being executed by a terminal, comprising: determining a reception time of a reference signal, wherein there is an offset between the reception time and a downlink DL time slot boundary, the DL time slot boundary being the starting time position for receiving downlink data; receiving the reference signal based on the reception time; and performing interference measurement.

[0007] In some implementations, determining the reception time of the reference signal includes: determining a time advance offset N. TA，offset and lead time N TA , where N TA，offset and N TA Used to describe the time advance TA corresponding to the serving cell of the terminal; based on NTA，offset and N TA Determine the receiving time offset; based on the receiving time offset and the DL time slot boundary, determine the receiving time.

[0008] In some implementations, the receive time offset includes a first receive time offset; according to N TA，offset and N TA Determine the receiving time offset, including: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset.

[0009] In some implementations, the serving cell and neighboring cells are heterogeneous networks, and the first reception time offset is... The first parameter is Alternatively, the serving cell and neighboring cells form a homogeneous network, and the first reception time offset is (N). TA，offset +N TA )T c The first parameter is 1; where T c It is a basic quantity of time.

[0010] In some implementations, the reception time offset includes a second reception time offset; the method further includes: receiving indication information, the indication information being used to indicate the synchronization error between a first network device of the serving cell and a second network device of a neighboring cell; according to N TA，offset and N TA Determine the receiving time offset, including: based on N TA，offset N TA Based on the synchronization error, determine the second reception time offset.

[0011] In some implementations, the receive time offset further includes a first receive time offset; according to N TA，offset N TA And synchronization error, determine the second reception time offset, including: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset; based on the sum of the first reception time offset and the synchronization error, determine the second reception time offset.

[0012] In some implementations, the serving cell where the terminal is located and its neighboring cells are heterogeneous networks, and the second reception time offset is... The first parameter is Alternatively, the serving cell where the terminal is located and its neighboring cells form a homogeneous network, and the second reception time offset is (N). TA，offset +N TA )T c +Δ max The first parameter is 1; where Tc Δ is a fundamental quantity of time. max This is the synchronization error.

[0013] In some implementations, N TA，offset N configured for neighboring cell terminals TA，offset Or, N TA，offset N configured for the terminal TA，offset .

[0014] According to a second aspect of the present disclosure, an interference measurement method is provided, the method being executed by a network device, comprising: determining a reception time of a reference signal, wherein there is an offset between the reception time and a downlink DL time slot boundary, the DL time slot boundary being the starting time position of a terminal receiving downlink data; determining, based on the reception time, not to transmit downlink data in the corresponding time slot, wherein the reception time is used to instruct the terminal to receive the reference signal; and performing interference measurement.

[0015] In some implementations, determining the reception time of the reference signal includes: determining a time advance offset N. TA，offset and lead time N TA , where N TA，offset and N TA Used to describe the time advance TA corresponding to the serving cell of the terminal; based on N TA，offset and N TA Determine the receiving time offset; based on the receiving time offset and the DL time slot boundary, determine the receiving time.

[0016] In some implementations, the receive time offset includes a first receive time offset; according to N TA，offset and N TA Determine the receiving time offset, including: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset.

[0017] In some implementations, the serving cell and neighboring cells are heterogeneous networks, and the first reception time offset is... The first parameter is Alternatively, the serving cell and neighboring cells form a homogeneous network, and the first reception time offset is (N). TA，offset +N TA )T c The first parameter is 1; where T c It is a basic quantity of time.

[0018] In some implementations, the reception time offset includes a second reception time offset; the method further includes: transmitting indication information, the indication information being used to indicate the synchronization error between a first network device of the serving cell and a second network device of a neighboring cell; according to N TA，offsetand N TA Determine the receiving time offset, including: based on N TA，offset N TA Based on the synchronization error, determine the second reception time offset.

[0019] In some implementations, the receive time offset further includes a first receive time offset; according to N TA，offset N TA And synchronization error, determine the second reception time offset, including: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset; based on the sum of the first reception time offset and the synchronization error, determine the second reception time offset.

[0020] In some implementations, the serving cell where the terminal is located and its neighboring cells are heterogeneous networks, and the second reception time offset is... The first parameter is Alternatively, the serving cell where the terminal is located and its neighboring cells form a homogeneous network, and the second reception time offset is (N). TA，offset +N TA )T c +Δ max The first parameter is 1; where T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0021] In some implementations, N TA，offset N configured for neighboring cell terminals TA，offset Or, N TA，offset N configured for the terminal TA，offset .

[0022] According to a third aspect of the present disclosure, a communication apparatus is provided, comprising: a processing module for determining a reception time of a reference signal, wherein there is an offset between the reception time and a DL time slot boundary, the DL time slot boundary being the start time position for receiving downlink data; a receiving module for receiving the reference signal based on the reception time; and the processing module further comprising performing interference measurement.

[0023] In some implementations, the processing module is further configured to: determine the time advance offset N TA，offset and lead time N TA , where N TA，offset and N TA Used to describe the TA corresponding to the terminal in the serving cell; based on N TA，offset and N TA Determine the receiving time offset; based on the receiving time offset and the DL time slot boundary, determine the receiving time.

[0024] In some implementations, the receive time offset includes a first receive time offset; the processing module is further configured to: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset.

[0025] In some implementations, the serving cell and neighboring cells are heterogeneous networks, and the first reception time offset is... The first parameter is Alternatively, the serving cell and neighboring cells form a homogeneous network, and the first reception time offset is (N). TA，offset +N TA )T c The first parameter is 1; where T c It is a basic quantity of time.

[0026] In some implementations, the reception time offset includes a second reception time offset; the receiving module is further configured to receive indication information, the indication information being used to indicate the synchronization error between the first network device of the serving cell and the second network device of the neighboring cell; the processing module is further configured to, according to N TA，offset N TA Based on the synchronization error, determine the second reception time offset.

[0027] In some implementations, the receive time offset further includes a first receive time offset; the processing module is also configured to: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset; based on the sum of the first reception time offset and the synchronization error, determine the second reception time offset.

[0028] In some implementations, the serving cell where the terminal is located and its neighboring cells are heterogeneous networks, and the second reception time offset is... The first parameter is Alternatively, the serving cell where the terminal is located and its neighboring cells form a homogeneous network, and the second reception time offset is (N). TA，offset +N TA )T c +Δ max The first parameter is 1; where T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0029] In some implementations, N TA，offset N configured for neighboring cell terminals TA，offset Or, N TA，offset N configured for the terminal TA，offset .

[0030] According to a fourth aspect of the present disclosure, a communication apparatus is provided, the apparatus comprising: a processing module, configured to determine a reception time of a reference signal, wherein there is an offset between the reception time and a DL time slot boundary, the DL time slot boundary being the starting time position of a terminal receiving downlink data; and a transmitting module, configured to determine, based on the reception time, not to transmit downlink data in a corresponding time slot, wherein the reception time is used to instruct the terminal to receive the reference signal and to perform interference measurement.

[0031] In some implementations, the processing module is further configured to: determine the time advance offset N TA，offset and lead time N TA , where N TA，offset and N TA Used to describe the TA corresponding to the terminal in the serving cell; based on N TA，offset and N TA Determine the receiving time offset; based on the receiving time offset and the DL time slot boundary, determine the receiving time.

[0032] In some implementations, the receive time offset includes a first receive time offset; the processing module is further configured to: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset.

[0033] In some implementations, the serving cell and neighboring cells are heterogeneous networks, and the first reception time offset is... The first parameter is Alternatively, the serving cell and neighboring cells form a homogeneous network, and the first reception time offset is (N). TA，offset +N TA )T c The first parameter is 1; where T c It is a basic quantity of time.

[0034] In some implementations, the receive time offset includes a second receive time offset; the transmitting module is further configured to transmit indication information, the indication information being used to indicate the synchronization error between the first network device of the serving cell and the second network device of the neighboring cell; the processing module is further configured to, according to N TA，offset N TA Based on the synchronization error, determine the second reception time offset.

[0035] In some implementations, the receive time offset further includes a first receive time offset; the processing module is also configured to: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset; based on the sum of the first reception time offset and the synchronization error, determine the second reception time offset.

[0036] In some implementations, the serving cell where the terminal is located and its neighboring cells are heterogeneous networks, and the second reception time offset is... The first parameter is Alternatively, the serving cell where the terminal is located and its neighboring cells form a homogeneous network, and the second reception time offset is (N). TA，offset +N TA )T c +Δ max The first parameter is 1; where T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0037] In some implementations, N TA，offset N configured for neighboring cell terminals TA，offset Or, N TA，offset N configured for the terminal TA，offset .

[0038] According to a fifth aspect of the present disclosure, a communication apparatus is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: perform the first aspect and any one of the methods in the first aspect.

[0039] According to a sixth aspect of the present disclosure, a communication apparatus is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: perform the second aspect and any one of the methods in the second aspect.

[0040] According to a seventh aspect of the present disclosure, a communication system is provided, the system comprising: a terminal and a network device; the terminal is configured to perform the first aspect and any one of the methods in the first aspect; the network device is configured to perform the second aspect and any one of the methods in the second aspect.

[0041] According to an eighth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, which, when instructions in the storage medium are executed by a processor of a terminal, enables the terminal to perform the first aspect and any one of the methods in the first aspect.

[0042] According to a ninth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, which, when instructions in the storage medium are executed by a processor of a terminal, enables the terminal to perform the second aspect and any one of the methods in the second aspect.

[0043] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: by determining the reception time of a reference signal that has an offset from the downlink time slot boundary to perform interference measurement, the accuracy of interference measurement is improved and the complexity of interference measurement is reduced.

[0044] 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

[0045] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0046] Figure 1 This is a schematic diagram of a wireless communication system according to an exemplary embodiment.

[0047] Figure 2 This is a schematic diagram illustrating an interference scenario according to an exemplary embodiment.

[0048] Figure 3 This is a schematic diagram of a CLI measurement scenario according to an exemplary embodiment.

[0049] Figure 4 This is a schematic diagram of a data transmission symbol timing according to an exemplary embodiment.

[0050] Figure 5 This is a flowchart illustrating an interference measurement method according to an exemplary embodiment.

[0051] Figure 6 This is a flowchart illustrating another interference measurement method according to an exemplary embodiment.

[0052] Figure 7 This is a flowchart illustrating yet another interference measurement method according to an exemplary embodiment.

[0053] Figure 8 This is a flowchart illustrating another interference measurement method according to an exemplary embodiment.

[0054] Figure 9 This is a flowchart illustrating another interference measurement method according to an exemplary embodiment.

[0055] Figure 10 This is a flowchart illustrating yet another interference measurement method according to an exemplary embodiment.

[0056] Figure 11 This is a flowchart illustrating another interference measurement method according to an exemplary embodiment.

[0057] Figure 12 This is a schematic diagram illustrating the time difference between a reference signal and a downlink symbol boundary according to an exemplary embodiment.

[0058] Figure 13 This is a schematic diagram illustrating a synchronization error between network devices according to an exemplary embodiment.

[0059] Figure 14 This is a schematic diagram of a communication device according to an exemplary embodiment.

[0060] Figure 15 This is a schematic diagram of another communication device according to an exemplary embodiment.

[0061] Figure 16 This is a schematic diagram of a communication device according to an exemplary embodiment.

[0062] Figure 17 This is a schematic diagram of another communication device according to an exemplary embodiment. Detailed Implementation

[0063] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure.

[0064] The communication methods disclosed herein can be applied to Figure 1 The wireless communication system 100 shown may include network device 110 and terminal 120. It is understood that... Figure 1 The wireless communication system shown is for illustrative purposes only. A wireless communication system may also include other network devices, such as core network equipment, wireless relay equipment, and wireless backhaul equipment. Figure 1 Not shown in the diagram. This disclosure does not limit the number of network devices and terminals included in the wireless communication system.

[0065] It is further understood that the wireless communication system of this disclosure is a network providing wireless communication functionality. The wireless communication system can employ different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier-frequency division multiple access (SC-FDMA), and carrier sense multiple access with collision avoidance. Based on factors such as capacity, speed, and latency, networks can be categorized as 2G, 3G, 4G, or future evolution networks, such as the 5th generation wireless communication system (5G) network, which can also be referred to as NR. For ease of description, this disclosure may sometimes simply refer to the wireless communication network as a network.

[0066] Furthermore, the network device 110 involved in this disclosure can also be referred to as a wireless access network device. This wireless access network device can be: a base station, an evolved Node B (eNB), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP), or a TRP, etc. It can also be a gNB in ​​an NR system, or it can be a component or part of a base station. When it is a vehicle-to-everything (V2X) communication system, the network device can also be an in-vehicle device. It should be understood that the specific technologies and specific device forms used in the embodiments of this disclosure are not limited.

[0067] Furthermore, the terminal 120 involved in this disclosure can also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., which is a device that provides voice and / or data connectivity to a user. For example, the terminal can be a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals include: smartphones, pocket personal computers (PPCs), handheld computers, personal digital assistants (PDAs), laptops, tablets, wearable devices, or in-vehicle devices, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device can also be an in-vehicle device. It should be understood that the embodiments of this disclosure do not limit the specific technology or specific device form adopted by the terminal.

[0068] In this embodiment, network device 110 and terminal 120 can employ any feasible wireless communication technology to transmit data to each other. The transmission channel corresponding to network device 110 sending data to terminal 120 is called the downlink channel (DL), and the transmission channel corresponding to terminal 120 sending data to network device 110 is called the UL. It is understood that the network device involved in this embodiment can be a base station. Of course, the network device can also be any other possible network device, and the terminal can be any possible terminal; this disclosure does not impose any limitations.

[0069] In the DTDD scenario of release (Rel) 18, to improve uplink communication performance, the proportion of the corresponding UL transmission time slot in the TDD configuration is increased. Assuming adjacent cells use a legacy DTDD structure, this will cause inconsistencies in the transmission directions of the two cells, leading to severe interference.

[0070] For example Figure 2 The scenario shown illustrates that the serving cell can include terminal 1 and network device 1. The neighboring cells adjacent to the serving cell can include terminal 2 and network device 2. When both the serving cell and the neighboring cells use DTDD, but their DTDD configurations may differ, in a given time slot, the serving cell and the neighboring cell may perform uplink and downlink transmissions respectively. For example... Figure 2 As shown, network device 1 sends downlink data to terminal 1, and terminal 2 sends uplink data to network device 2. Figure 2The two solid black arrows shown represent different transmission states in different cells within the same time slot. In this case, since terminal 2 is in the uplink transmission time slot, the data sent by terminal 2 will also be transmitted to terminal 1. Terminal 1 may then simultaneously receive downlink data sent by network device 1 and data sent by terminal 2, resulting in inter-symbol interference (ISI). Figure 2 The dashed arrow pointing from terminal 2 to terminal 1 indicates the interference caused by the data sent by terminal 2 to terminal 1.

[0071] To measure interference between terminals in adjacent cells and between terminals, Rel-16 employs CLI (Sounding Reference Signal) to measure the interference of reference signal received power (RSRP) between corresponding terminals. It also employs CLI (Received Signal Strength Indicator) to measure the interference of RSSI between corresponding terminals. Furthermore, a layer (L)3-based CLI reporting framework is defined.

[0072] Building upon Rel-16, Rel-18 further enhances CLI measurement reporting performance by determining that CLI between terminals (UE-to-UE) is based on either L1 or L2 measurement reporting. Compared to L3 reporting, the corresponding reporting cycle can be shortened, thus providing greater flexibility to adapt to different CLI scenarios.

[0073] In some technologies, to mitigate the impact of UE-to-UE communication on CLI measurements, an event-triggered measurement reporting method is considered. Furthermore, periodic, non-periodic, or semi-periodic reporting can be configured.

[0074] Considering the serving terminal within the same cell, such as the victim terminal, the arrival time of the CLI reference signal received by the victim terminal from the aggressor terminal has a certain time error compared to the DL symbol. For example... Figure 3As shown, the time it takes for the reference signal sent by a terminal in a neighboring cell (such as an aggressor terminal) to arrive at a terminal in the serving cell (such as a victim terminal) differs from the time it takes for the terminal in the serving cell to receive downlink data sent by the network equipment. This error is related to the time advance (TA) information of the aggressor terminal, the propagation delay between the victim terminal and the network equipment in the serving cell, the propagation delay between the victim terminal and the aggressor terminal, and the synchronization error between network equipment in different cells.

[0075] refer to Figure 4 Assume the time offset for network devices sending downlink data is 0. For terminals within the same cell, receiving downlink data from the network device will result in a certain delay, such as T1 or T2. T1 represents the delay when a terminal in the serving cell receives downlink data from the network device within the serving cell, and T2 represents the delay when a terminal in a neighboring cell receives downlink data from the network device within the serving cell. It's understood that, typically, the serving cell and neighboring cells have similar structures, so T1 and T2 can be approximated as equal. Furthermore, terminals often send uplink data in advance to ensure the network device receives it with a time offset of 0.

[0076] For the time when the CLI reference signal arrives at the victim terminal, the time offset from the DL symbol boundary can be N. TA，offset T c +T1+T2-T3, where N TA，offset TA information configured for the aggressor terminal, T c For time fundamentals, T1 is the propagation delay from the victim terminal to the serving cell network device, T2 is the propagation delay from the aggressor terminal to the neighboring cell network device, and T3 is the propagation delay between the aggressor terminal and the victim terminal.

[0077] It can be seen that the time when the victim terminal receives the CLI reference signal is highly correlated with the TA information of the aggressor terminal. However, the victim terminal is unaware of the aggressor terminal's TA information, making it difficult for the victim terminal to determine the accurate reception time of the CLI reference signal.

[0078] However, in related technologies, such as Rel-16, CLI measurement reporting is based on L3. Therefore, Rel-16 terminals do not expect to receive downlink data sent by network devices on the previous data symbol of the symbol where the CLI measurement is configured. Furthermore, Rel-16 terminals determine the reception time of the CLI reference signal from the aggressor terminal based on the actual implementation.

[0079] However, for the Victim terminal under Rel-18, the timing of receiving the reference signal cannot be accurately known, resulting in low CLI measurement accuracy.

[0080] Therefore, this disclosure improves the accuracy of interference measurement and reduces the complexity of interference measurement by determining the reception time of a reference signal that is offset from the downlink time slot boundary in order to perform interference measurement.

[0081] Figure 5 This is a flowchart illustrating an interference measurement method according to an exemplary embodiment, such as... Figure 5 As shown, the method is executed by a terminal, which can be the aforementioned victim terminal, and the method may include the following steps:

[0082] In step S11, the reception time of the reference signal is determined.

[0083] In some embodiments, the terminal determines the reception time of the reference signal. There is an offset between the reception time and the DL timeslot boundary. The terminal can be considered as a terminal of the serving cell, and the DL timeslot can be considered as the starting time position of the terminal receiving downlink data sent by network devices in the serving cell.

[0084] For example, the terminal can determine the reception time of each reference signal. For instance, the reference signal could be a CLI reference signal used to perform CLI measurements. For example, when the victim terminal performs CLI measurements with aggressor terminals in different neighboring cells, the victim terminal needs to determine the reception time of the reference signal sent by each aggressor terminal separately.

[0085] It is understandable that the offset between the reception time of different reference signals and the DL time slot boundary of the terminal can be different.

[0086] In some embodiments, the terminal may receive configuration information sent by the network device, which may indicate the reception time of a reference signal. For example, the network device determines the reception time of the reference signal and informs the terminal through the configuration information. After parsing the received configuration information, the terminal determines the reception time of the reference signal.

[0087] In some embodiments, the terminal may determine the reception time of the reference signal according to a protocol specification or preset rules. For example, the protocol specification or preset rules may directly specify the reception time of the reference signal. Alternatively, the protocol specification or preset rules may specify certain parameters, and the terminal may determine the reception time of the reference signal based on these specified parameters.

[0088] In some embodiments, the terminal may also receive configuration information sent by the network device, which may indicate some parameters, and the terminal determines the reception time of the reference signal based on the parameters indicated by the configuration information.

[0089] Some of the parameters can be any possible parameters required to determine the reception time of the reference signal, such as time advance offset, time advance, etc., and this disclosure does not limit them.

[0090] In step S12, a reference signal is received based on the reception time.

[0091] In some embodiments, the terminal may receive a reference signal at a corresponding time or time period according to the reception time determined in S11.

[0092] For example, when the reference signal is a CLI reference signal, the terminal can receive the CLI reference signal at the corresponding time or time period according to the determined reception time.

[0093] Of course, the above example is only used to illustrate interference measurement as a CLI measurement. The above process can also be used for SRS measurement, channel state information-reference signal (CSI-RS) measurement, and so on. It is understood that the specific type of interference measurement performed may depend on the specific form of the reference signal, such as SRS, CSI-RS, etc. This disclosure does not limit it.

[0094] In step S13, interference measurement is performed.

[0095] In some embodiments, the terminal may perform interference measurement based on the reference signal received in S12.

[0096] For example, when the reference signal is a CLI reference signal, the terminal can perform CLI measurements based on the received CLI reference signal.

[0097] This disclosure improves the accuracy and reduces the complexity of interference measurement by determining the reception time of a reference signal that is offset from the downlink time slot boundary to perform interference measurement.

[0098] In the interference measurement method provided in the embodiments of this disclosure Figure 6This is a flowchart illustrating another interference measurement method according to an exemplary embodiment. Figure 6 As shown, determining the reception time of the reference signal in S11 may further include the following steps:

[0099] In step S21, the time advance offset and time advance are determined.

[0100] In some embodiments, the terminal can determine a time advance offset and a time advance. The time advance offset can be denoted as N. TA，offset The lead time can be denoted as N. TA N TA，offset and N TA It can be used to describe the TA corresponding to the terminal in the serving cell.

[0101] It's understandable, N TA，offset It can be a community-level TA, N TA This can be a terminal-level TA. A cell-level TA refers to the same TA used within the same cell. For example, terminals A and B, belonging to the same serving cell, use the same TA. TA，offset They are the same. However, the terminal-level TA indicates that different terminals can use different TAs. For example, terminals A and B, belonging to the same serving cell, can have different TAs based on differences in factors such as terminal location, hardware conditions, and communication environment. TA For a given terminal, when transmitting a reference signal for performing interference measurements, it needs to determine the actual reference signal (TA) based on both the cell-level TA and the terminal-level TA. For example, terminal A needs to reference the N of the serving cell. TA，offset And N of terminal A TA To determine the actual TA. For example, terminal B needs to refer to the serving cell's N. TA，offset And N of terminal B TA Determine the actual TA.

[0102] For example, the terminal can determine N based on the indication information sent by the network device. TA，offset and N TA For example, a terminal receives configuration information sent by a network device, which may include N. TA，offset and / or N TA It's understandable, N TA，offset and / or N TA The instructions can be given through the same configuration information or through different configuration information independently; this disclosure does not limit this.

[0103] For example, the terminal can determine N based on preset rules or protocol specifications. TA，offset and N TA .

[0104] In step S22, according to N TA，offset and N TA Determine the receiving time offset.

[0105] In some embodiments, the terminal can determine N based on S21. TA，offset and N TA The receiving time offset is determined. This can be understood as the receiving time offset used to determine how much time has shifted from the reference signal reception time relative to the DL time slot boundary.

[0106] In step S23, the receiving time is determined based on the receiving time offset and the DL time slot boundary.

[0107] In some embodiments, the terminal can determine the reception time of the reference signal based on the reception time offset determined in S22 and in combination with the terminal's DL time slot boundary.

[0108] For example, this reception time could be the start time of receiving the reference signal. The terminal begins receiving the reference signal from this start time and performs interference measurements.

[0109] This disclosure determines the offset between the reception time and the downlink time slot boundary by using a time advance offset and a time advance, so as to determine the reception time and perform interference measurement based on the offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0110] In the interference measurement method provided in this embodiment, the reception time offset includes a first reception time offset. In S22, according to N... TA，offset and N TA Determine the receiving time offset, including: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset.

[0111] In some embodiments, the receive time offset may include a first receive time offset. The first receive time offset can be considered as the receive time offset without considering synchronization errors between network devices.

[0112] In some embodiments, the terminal can be based on N TA，offset and N TA The first reception time offset is determined by multiplying by the sum of the first parameters. It can be understood that N... TA Multiplying by the first parameter can be considered as a whole, and then combined with N. TA，offset Perform summation.

[0113] For example, directly using N TA，offset and N TAMultiply by the sum of the first parameters to obtain the first reception time offset.

[0114] For example, N can be determined separately. TA，offset and N TA Multiply by the respective weighting coefficients of the first parameter. And based on N with weighting coefficients. TA，offset and N with weighted coefficients TA Multiply by the first parameter and sum to determine the first reception time offset.

[0115] In some embodiments, the terminal can also be based on N TA，offset and N TA Multiply by the first parameter to perform possible algebraic operations. For example, with N... TA，offset and N TA Multiply by one or more of the first parameters, square and sum, or take the square root and sum, etc.

[0116] Of course, in some embodiments, it can also be based on N TA，offset and N TA Multiply by the difference in the first parameter to determine the first reception time offset. Or, for N... TA，offset and N TA Multiply by one or more of the first parameters, square the result, and then find the difference; or take the square root and then find the difference, etc. This is understandable; the specific method based on N can be determined according to the actual situation. TA，offset and N TA The algebraic operation is performed by multiplying by the first parameter, but this disclosure does not impose any limitations.

[0117] This disclosure provides a specific implementation method for determining the reception time offset, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0118] In the interference measurement method provided in this embodiment, the serving cell and neighboring cells are heterogeneous networks, and the first reception time offset is... The first parameter is Alternatively, the serving cell and neighboring cells form a homogeneous network, and the first reception time offset is (N). TA，offset +N TA )T c The first parameter is 1; where T c It is a basic quantity of time.

[0119] In some embodiments, the terminal may disregard synchronization errors between network devices in different cells, or consider the synchronization error to be zero. The synchronization error between network devices in different cells can be the synchronization error between the network devices of the serving cell and the network devices of neighboring cells. If the serving cell and neighboring cells are a heterogeneous network (HetNet), the terminal can determine the first reception time offset as follows: Wherein, the first parameter is T c It is a basic quantity of time.

[0120] For example, if the serving cell and neighboring cells are HetNet, the reception time of the terminal receiving the reference signal, compared to the first reception time offset of the DL time slot boundary, can be... Wherein, the first parameter is T c This is a fundamental quantity of time. It can be understood that T... c It can be pre-set or protocol-defined, representing a unit of time. For example, 1ms, 5μs, etc.

[0121] Here, HetNet represents a scenario where urban macro cells and micro cells coexist. In this case, considering different communication requirements, urban macro cells typically correspond to a DL-dominated TDD UL / DL configuration, while micro cells correspond to a UL-dominated TDD UL / DL configuration. The time offset is T. offset =N TA，offset T c +T1+T2-T3, where T offset Represents time offset, N TA，offset Cell-level TA information configured for the aggressor terminal. Considering the relatively short distance between the interfering victim and aggressor terminals, such as near the cell boundary, the propagation delay T3 between terminals can be ignored. That is, T3 can be considered as 0. Furthermore, assuming the neighboring cell of the aggressor terminal is a microcell, the distance between the aggressor terminal and the network equipment in its neighboring cell will also be relatively short, such as tens of meters. For electromagnetic wave signals with a propagation speed close to the speed of light, the propagation delay from the aggressor terminal to the neighboring cell's network equipment corresponding to T2 can also be ignored. offset It can then be approximated as T offset =N TA， offset T c +T1. Here, T1 can be considered as... In other words, NTA T c This represents the round-trip latency between the victim terminal and the base station within the serving cell. Furthermore, T... offset =N TA，offset T c +T1 can be further simplified to It can be seen that the first parameter is

[0122] In some embodiments, the terminal may disregard synchronization errors between network devices in different cells, or consider the synchronization error to be zero. The synchronization error between network devices in different cells can be the synchronization error between the network devices of the serving cell and the network devices of neighboring cells. If the serving cell and neighboring cells are homogeneous networks, for example in a seamless bidirectional forwarding detection (SBFD) scenario, the terminal can determine the first reception time offset as (N... TA，offset +N TA )T c Where the first parameter is 1, T c It is a basic quantity of time.

[0123] For example, if the serving cell and neighboring cells are homogeneous networks, such as in an SBFD scenario, the reception time of the terminal receiving the reference signal, compared to the first reception time offset of the DL time slot boundary, can be (N). TA，offset +N TA )T c Where the first parameter is 1, T c This is a fundamental quantity of time. It can be understood that T... c It can be pre-set or protocol-defined, representing a unit of time. For example, 1ms, 5μs, etc.

[0124] In a homogeneous network, the serving cell and neighboring cells are considered to have identical structures and configurations. Taking an SBFD scenario as an example, in this case, assume that an advanced UE supporting SBFD can configure a UL subband in the DL time slot and transmit uplink data on the UL subband. The advanced UE can be considered the victim UE mentioned above. For legacy UEs that do not support SBFD, they transmit downlink data normally in the DL time slot. The legacy UE can be considered the aggressor UE mentioned above. The uplink data transmitted by the advanced UE will interfere with the downlink reception of the legacy UE. It is understood that the advanced and legacy UEs can come from the same cell or different cells.

[0125] Based on time offset T offset =N TA，offset T c +T1+T2-T3, where T offset Represents time offset, N TA，offset Cell-level TA information configured for the aggressor terminal. Considering the short distance between the interfering victim and aggressor terminals, such as near the cell boundary, the propagation delay T3 between terminals can be ignored. That is, T3 can be considered as 0. Furthermore, it is assumed that the aggressor and victim terminals are located at the cell edge. The delay between the aggressor terminal and its neighboring cell's network equipment is approximately the same as the delay between the victim terminal and its neighboring cell's network equipment. That is, T2≈T1. offset It can then be approximated as T offset =N TA， offset T c +2T1. Where T1 can be considered as... In other words, N TA T c This represents the round-trip latency between the victim terminal and the base station within the serving cell. Furthermore, T... offset =N TA，offset T c +2T1 can be further simplified to T offset =(N TA，offset +N TA )T c As can be seen, the first parameter is 1.

[0126] This disclosure provides a method for determining the reception time offset under different network structures, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0127] In the interference measurement method provided in this embodiment, the receiving time offset includes a second receiving time offset. Figure 7 This is a flowchart illustrating yet another interference measurement method according to an exemplary embodiment. Figure 7 As shown, the method may also include the following steps:

[0128] In step S31, an instruction message is received.

[0129] In some embodiments, the receive time offset may include a second receive time offset. The second receive time offset can be considered as a receive time offset that takes into account synchronization errors between network devices.

[0130] In some embodiments, the terminal may receive indication information sent by a network device, which may be used to indicate the synchronization error between a first network device of the serving cell and a second network device of a neighboring cell.

[0131] For example, considering the synchronization error between network devices in different cells, this synchronization error can be measured by the network devices and indicated to the terminal via indication information. For instance, the first network device serving the cell performs a measurement by receiving a reference signal sent by the second network device in the neighboring cell to determine the synchronization error between the different network devices. This synchronization error can be denoted as Δ. max .

[0132] For example, in Rel-18 DTDD scenarios, in addition to supporting CLI measurements between UE-to-UE devices, CLI measurements can also be supported between network devices (gNB-to-gNB). That is, the aggressor network device sends the corresponding reference signal, and the victim network device receives the corresponding reference signal and performs interference measurements. Therefore, a synchronization error Δ between different network devices can be considered. max The situation.

[0133] For example, the instruction information may also carry the identifier of the network device. This identifier can be an identity (ID) or an index.

[0134] In some implementations, S22 is based on N TA，offset and N TA Determining the receiving time offset may also include the following steps:

[0135] In step S32, according to N TA，offset N TA Based on the synchronization error, determine the second reception time offset.

[0136] In some embodiments, the terminal can be based on N TA，offset N TA and Δ max Determine the second receiving time offset.

[0137] It is understandable that the second time offset can be based on the first time offset, combined with Δ. max It's confirmed.

[0138] This disclosure determines the offset between the reception time and the downlink time slot boundary by using time advance offset, time advance, and synchronization error, so as to determine the reception time and perform interference measurement based on the offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0139] In the interference measurement method provided in this embodiment, the receiving time offset further includes a first receiving time offset. Figure 8 This is a flowchart illustrating another interference measurement method according to an exemplary embodiment. Figure 8 As shown, in S32, according to N TA，offset N TA Determining the second reception time offset, along with synchronization errors, may also include the following steps:

[0140] In step S41, based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset.

[0141] In some embodiments, the terminal can be based on N TA，offset and N TA The first reception time offset is determined by multiplying by the sum of the first parameters. This can be understood as N... TA Multiply by the first parameter and treat it as a whole, and N TA，offset Perform summation.

[0142] For example, directly using N TA，offset and N TA Multiply by the sum of the first parameters to obtain the first reception time offset.

[0143] For example, N can be determined separately. TA，offset and N TA Multiply by the respective weighting coefficients of the first parameter. And based on N with weighting coefficients. TA，offset and N with weighted coefficients TA Multiply by the first parameter and sum to determine the first reception time offset.

[0144] In some embodiments, the terminal can also be based on N TA，offset and N TA Multiply by the first parameter to perform possible algebraic operations. For example, with N... TA，offset and N TA Multiply by one or more of the first parameters, square and sum, or take the square root and sum, etc.

[0145] In step S42, the second reception time offset is determined based on the sum of the first reception time offset and the synchronization error.

[0146] In some embodiments, the terminal can base its actions on the first reception time offset determined in S41 and Δ. max The sum of these values ​​determines the second receiving time offset.

[0147] For example, directly using the first receiving time offset and Δ max The sum of these values ​​serves as the second receiving time offset.

[0148] For example, the first reception time offset and Δ can be determined separately. max Each has its own weighting coefficient. And based on the first reception time offset with the weighting coefficient and the weighting coefficient Δ... max The summation is performed to determine the second receiving time offset.

[0149] This disclosure provides a specific implementation method for determining the reception time offset, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0150] In the interference measurement method provided in this embodiment, the serving cell of the terminal and its neighboring cells are heterogeneous networks, and the second reception time offset is... The first parameter is Alternatively, the serving cell where the terminal is located and its neighboring cells form a homogeneous network, and the second reception time offset is (N). TA，offset +N TA )T c +Δ max The first parameter is 1; where T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0151] In some embodiments, the terminal may consider synchronization errors between network devices in different cells. These synchronization errors can be the synchronization errors between the network devices in the serving cell and the network devices in neighboring cells. If the serving cell and neighboring cells are HetNet, the terminal can determine the second reception time offset as follows: Wherein, the first parameter is T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0152] For example, if the serving cell and neighboring cells are HetNet, the reception time of the terminal receiving the reference signal, compared to the second reception time offset of the DL time slot boundary, can be... Wherein, the first parameter is T c This is a fundamental quantity of time. It can be understood that T... c It can be pre-set or protocol-defined, representing a unit of time. For example, 1ms, 5μs, etc.

[0153] Understandable, specifically The process of determining the value can be referred to the description of the foregoing embodiments, and will not be repeated here.

[0154] In some embodiments, the terminal may consider synchronization errors between network devices in different cells. These synchronization errors can be the synchronization errors between the network devices of the serving cell and the network devices of neighboring cells. If the serving cell and neighboring cells are homogeneous networks, such as in an SBFD scenario, the terminal can determine the second reception time offset as (N... TA，offset +N TA )T c +Δ max Where the first parameter is 1, T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0155] Understandable, specifically (N) TA，offset +N TA )T c The process of determining the value can be referred to the description of the foregoing embodiments, and will not be repeated here.

[0156] This disclosure provides a method for determining the reception time offset under different network structures, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0157] In the interference measurement method provided in this embodiment, N TA，offset N configured for neighboring cell terminals TA，offset Or, N TA，offset N configured for the terminal TA，offset .

[0158] In some embodiments, N TA，offset N can be configured for neighboring cell terminals TA，offset .

[0159] For example, a terminal can receive indication information sent by a network device, which can instruct neighboring cell terminals on the N configuration. TA，offset This indication information can be related to the indication Δ. max The instruction information may be the same or different.

[0160] Of course, for N TA It can also be determined based on indication information sent by the network device. This indication information can be compared with indication N. TA，offset Indication information, indication Δ max One or more of the indication information are the same; or the indication information is the same as indication N. TA，offset Indication information, indication Δ max The instructions are all different.

[0161] For example, a terminal can determine the N configured by neighboring cell terminals based on predefined rules or protocol specifications. TA，offset .

[0162] Of course, for N TA It can also be determined according to predefined rules or protocol provisions.

[0163] It is clear that whether determining the first or second reception time offset, it is done by determining the N of the neighboring cells. TA，offset This ensures a more accurate and precise reception time.

[0164] In some embodiments, the terminal can determine N TA，offset N can be configured for the terminals in the serving cell. TA，offset .

[0165] For example, assuming a DTDD scenario, DTDD primarily studies co-channel level interference measurements, such as co-channel CLI, where the aggressor terminal's cell and the victim terminal's cell are within the same carrier range. However, cell-level N... TA，offset This refers to the preparation time for uplink and downlink handover of network devices within a cell. It is primarily related to the TDD or Frequency Division Duplex (FDD) standard and the frequency band (band) in which the cell is located. In a DTDD scenario, since the serving cell and neighboring cells are within the same carrier range, their bands are the same. Based on the above, the cell-level N of the aggressor terminal can be considered... TA，offset , with the cell-level N of the victim terminal TA，offset same.

[0166] Therefore, considering that in some cases the terminal may not be able to obtain or know the cell-level N of the aggressor terminal, TA，offset The cell-level N of the victim terminal can be used. TA，offset Cell-level N replacing the aggressor terminal TA，offset .

[0167] This disclosure determines the reception time offset by replacing the cell-level TA of the neighboring cell with the cell-level TA of the serving cell. This allows for the determination of the reception time and the execution of interference measurements based on this reception time offset, thereby improving the accuracy and reducing the complexity of interference measurements.

[0168] Based on the same concept, this disclosure also provides a method for measuring interference performed by a network device.

[0169] Figure 9 This is a flowchart illustrating another interference measurement method according to an exemplary embodiment, such as... Figure 9 As shown, the method is executed by a network device and may include the following steps:

[0170] In step S51, the reception time of the reference signal is determined.

[0171] In some embodiments, the network device determines the reception time of the reference signal. There is an offset between the reception time and the DL timeslot boundary. The DL timeslot can be considered as the starting time position of a terminal in the serving cell receiving downlink data transmitted by the network device.

[0172] For example, network devices can determine the reception time of each reference signal. For instance, the reference signal could be a CLI reference signal used to perform CLI measurements. For example, when the victim terminal performs CLI measurements with aggressor terminals in different neighboring cells, the network device needs to determine the reception time for each aggressor terminal to send the reference signal to the victim terminal.

[0173] It is understandable that the offset between the reception time of different reference signals and the DL time slot boundary can be different.

[0174] In some embodiments, the network device may determine the reception time of the reference signal according to protocol specifications or preset rules. For example, the protocol specifications or preset rules may directly specify the reception time of the reference signal. Alternatively, the protocol specifications or preset rules may specify certain parameters, and the network device may determine the reception time of the reference signal based on these specified parameters.

[0175] Some of the parameters can be any possible parameters required to determine the reception time of the reference signal, such as time advance offset, time advance, etc., and this disclosure does not limit them.

[0176] In step S52, it is determined that no downlink data will be transmitted in the corresponding time slot based on the reception time.

[0177] In some embodiments, the network device may determine not to send downlink data in the corresponding time slot based on the reception time determined in S51.

[0178] It is clear that after determining the reception time when the terminal may perform interference measurements, the network device can decide not to transmit downlink data in the corresponding time slot to avoid affecting or interfering with the terminal's reception of the reference signal. This allows the terminal to receive the reference signal at the corresponding time or time period and perform interference measurements based on the received reference signal.

[0179] For example, when the reference signal is a CLI reference signal, the terminal can receive the CLI reference signal at the corresponding time or time period according to the determined reception time, and perform CLI measurement based on the received CLI reference signal.

[0180] Of course, the above example is only used to illustrate interference measurement as a CLI measurement. The above process can also be used for SRS measurement, CSI-RS measurement, etc. It is understood that the specific type of interference measurement performed may depend on the specific form of the reference signal, such as SRS, CSI-RS, etc. This disclosure does not limit it.

[0181] In some embodiments, the network device may also transmit a reception time. For example, it may transmit configuration information indicating the reception time, which may indicate some parameters or directly indicate the reception time. Based on the parameters indicated by the configuration information or the indicated reception time, the terminal determines the reception time of the reference signal and receives the reference signal at that reception time to perform interference measurement.

[0182] This disclosure improves the accuracy and reduces the complexity of interference measurement by determining the reception time of a reference signal that is offset from the downlink time slot boundary to perform interference measurement.

[0183] In the interference measurement method provided in the embodiments of this disclosure Figure 10 This is a flowchart illustrating yet another interference measurement method according to an exemplary embodiment. Figure 10 As shown, determining the reception time of the reference signal in S51 may further include the following steps:

[0184] In step S61, the time advance offset and time advance are determined.

[0185] In some embodiments, the network device can determine a time advance offset and a time advance. The time advance offset can be denoted as N. TA，offset The lead time can be denoted as N. TA N TA，offset and N TA It can be used to describe the TA corresponding to the terminal in the serving cell.

[0186] It's understandable, N TA，offset It can be a community-level TA, N TA This can be a terminal-level TA. A cell-level TA refers to the same TA used within the same cell. For example, terminals A and B, belonging to the same serving cell, use the same TA. TA，offsetThey are the same. However, the terminal-level TA indicates that different terminals can use different TAs. For example, terminals A and B, belonging to the same serving cell, can have different TAs based on differences in factors such as terminal location, hardware conditions, and communication environment. TA For a given terminal, when transmitting a reference signal for performing interference measurements, it needs to determine the actual reference signal (TA) based on both the cell-level TA and the terminal-level TA. For example, terminal A needs to reference the N of the serving cell. TA，offset And N of terminal A TA To determine the actual TA. For example, terminal B needs to refer to the serving cell's N. TA，offset And N of terminal B TA Determine the actual TA.

[0187] For example, network devices can determine N based on preset rules or protocol specifications. TA，offset and N TA .

[0188] For example, a network device can send an instruction message, instructing N TA，offset and N TA For example, when a network device sends configuration information, this configuration information may include N. TA，offset and / or N TA It's understandable, N TA，offset and / or N TA The instructions can be given through the same configuration information or through different configuration information independently; this disclosure does not limit this.

[0189] In step S62, according to N TA，offset and N TA Determine the receiving time offset.

[0190] In some embodiments, the network device can determine N based on S61. TA，offset and N TA The receiving time offset is determined. This can be understood as the receiving time offset used to determine how much time has shifted from the reference signal reception time relative to the DL time slot boundary.

[0191] In step S63, the receiving time is determined based on the receiving time offset and the DL time slot boundary.

[0192] In some embodiments, the network device can determine the reception time of the reference signal based on the reception time offset determined in S62 and in conjunction with the DL time slot boundary.

[0193] For example, the reception time could be the start time of receiving the reference signal. This allows the terminal to begin receiving the reference signal from that start time and perform interference measurements.

[0194] This disclosure determines the offset between the reception time and the downlink time slot boundary by using a time advance offset and a time advance, so as to determine the reception time and perform interference measurement based on the offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0195] In the interference measurement method provided in this embodiment, the reception time offset includes a first reception time offset. In S62, according to N... TA，offset and N TA Determine the receiving time offset, including: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset.

[0196] In some embodiments, the receive time offset may include a first receive time offset. The first receive time offset can be considered as the receive time offset without considering synchronization errors between network devices.

[0197] In some embodiments, the network device can be based on N TA，offset and N TA The first reception time offset is determined by multiplying by the sum of the first parameters. It can be understood that N... TA Multiplying by the first parameter can be considered as a whole, and then combined with N. TA，offset Perform summation.

[0198] For example, directly using N TA，offset and N TA Multiply by the sum of the first parameters to obtain the first reception time offset.

[0199] For example, N can be determined separately. TA，offset and N TA Multiply by the respective weighting coefficients of the first parameter. And based on N with weighting coefficients. TA，offset and N with weighted coefficients TA Multiply by the first parameter and sum to determine the first reception time offset.

[0200] In some embodiments, the network device can also be based on N TA，offset and N TA Multiply by the first parameter to perform possible algebraic operations. For example, with N... TA，offset and N TA Multiply by one or more of the first parameters, square and sum, or take the square root and sum, etc.

[0201] Of course, in some embodiments, it can also be based on N TA，offset and N TA Multiply by the difference in the first parameter to determine the first reception time offset. Or, for N... TA，offsetand N TA Multiply by one or more of the first parameters, square the result, and then find the difference; or take the square root and then find the difference, etc. This is understandable; the specific method based on N can be determined according to the actual situation. TA，offset and N TA The algebraic operation is performed by multiplying by the first parameter, but this disclosure does not impose any limitations.

[0202] This disclosure provides a specific implementation method for determining the reception time offset, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0203] In the interference measurement method provided in this embodiment, the serving cell and neighboring cells are heterogeneous networks, and the first reception time offset is... The first parameter is Alternatively, the serving cell and neighboring cells form a homogeneous network, and the first reception time offset is (N). TA，offset +N TA )T c The first parameter is 1; where T c It is a basic quantity of time.

[0204] In some embodiments, the network device may disregard synchronization errors between network devices in different cells, or consider the synchronization error to be zero. The synchronization error between network devices in different cells can be the synchronization error between the network device of the serving cell and the network device of a neighboring cell. If the serving cell and the neighboring cell are HetNet, then the network device can determine the first reception time offset as follows: Wherein, the first parameter is T c It is a basic quantity of time.

[0205] For example, if the serving cell and neighboring cells are HetNet, the reception time of the terminal receiving the reference signal, compared to the first reception time offset of the DL time slot boundary, can be... Wherein, the first parameter is T c This is a fundamental quantity of time. It can be understood that T... c It can be pre-set or protocol-defined, representing a unit of time. For example, 1ms, 5μs, etc.

[0206] Here, HetNet represents a scenario where urban macrocells and microcells coexist. In this case, considering different communication needs, urban macrocells typically correspond to a DL-dominated TDD UL / DL configuration, while microcells correspond to a UL-dominated TDD UL / DL configuration. The time offset is T. offset =N TA，offset T c+T1+T2-T3, where T offset Represents timeoffset, N TA，offset Cell-level TA information configured for the aggressor terminal. Considering the relatively short distance between the interfering victim and aggressor terminals, such as near the cell boundary, the propagation delay T3 between terminals can be ignored. That is, T3 can be considered as 0. Furthermore, assuming the neighboring cell of the aggressor terminal is a microcell, the distance between the aggressor terminal and the network equipment in its neighboring cell will also be relatively short, such as tens of meters. For electromagnetic wave signals with a propagation speed close to the speed of light, the propagation delay from the aggressor terminal to the neighboring cell's network equipment corresponding to T2 can also be ignored. offset It can then be approximated as T offset =N TA，offset T c +T1. Here, T1 can be considered as... In other words, N TA T c This represents the round-trip latency between the victim terminal and the base station within the serving cell. Furthermore, T... offset =N TA，offset T c +T1 can be further simplified to It can be seen that the first parameter is

[0207] In some embodiments, the network device may disregard synchronization errors between network devices in different cells, or consider the synchronization error to be zero. The synchronization error between network devices in different cells can be the synchronization error between the network device of the serving cell and the network device of a neighboring cell. If the serving cell and neighboring cells are homogeneous networks, such as in an SBFD scenario, then the network device can determine the first reception time offset as (N... TA，offset +N TA )T c Where the first parameter is 1, T c It is a basic quantity of time.

[0208] For example, if the serving cell and neighboring cells are homogeneous networks, such as in an SBFD scenario, the reception time of the terminal receiving the reference signal, compared to the first reception time offset of the DL time slot boundary, can be (N). TA，offset +N TA )T c Where the first parameter is 1, T c This is a fundamental quantity of time. It can be understood that T... c It can be pre-set or protocol-defined, representing a unit of time. For example, 1ms, 5μs, etc.

[0209] In a homogeneous network, the serving cell and neighboring cells are considered to have identical structures and configurations. Taking an SBFD scenario as an example, in this case, assume that an advanced UE supporting SBFD can configure a UL subband in the DL time slot and transmit uplink data on the UL subband. The advanced UE can be considered the victim UE mentioned above. For legacy UEs that do not support SBFD, they transmit downlink data normally in the DL time slot. The legacy UE can be considered the aggressor UE mentioned above. The uplink data transmitted by the advanced UE will interfere with the downlink reception of the legacy UE. It is understood that the advanced and legacy UEs can come from the same cell or different cells.

[0210] Based on time offset T offset =N TA，offset T c +T1+T2-T3, where T offset Represents time offset, N TA，offset Cell-level TA information configured for the aggressor terminal. Considering the short distance between the interfering victim and aggressor terminals, such as near the cell boundary, the propagation delay T3 between terminals can be ignored. That is, T3 can be considered as 0. Furthermore, it is assumed that the aggressor and victim terminals are located at the cell edge. The delay between the aggressor terminal and its neighboring cell's network equipment is approximately the same as the delay between the victim terminal and its neighboring cell's network equipment. That is, T2≈T1. offset It can then be approximated as T offset =N TA， offset T c +2T1. Where T1 can be considered as... In other words, N TA T c This represents the round-trip latency between the victim terminal and the base station within the serving cell. Furthermore, T... offset =N TA，offset T c +2T1 can be further simplified to T offset =(N TA，offset +N TA )T c As can be seen, the first parameter is 1.

[0211] This disclosure provides a method for determining the reception time offset under different network structures, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0212] In the interference measurement method provided in this disclosure, the reception time offset includes a second reception time offset. The method may further include the following step: sending indication information.

[0213] In some embodiments, the receive time offset may include a second receive time offset. The second receive time offset can be considered as a receive time offset that takes into account synchronization errors between network devices.

[0214] In some embodiments, a network device may send indication information that can be used to indicate the synchronization error between a first network device in the serving cell and a second network device in a neighboring cell.

[0215] For example, considering the synchronization error between network devices in different cells, this synchronization error can be measured by the network devices and indicated to the terminal via indication information. For instance, the first network device serving the cell performs a measurement by receiving a reference signal sent by the second network device in the neighboring cell to determine the synchronization error between the different network devices. This synchronization error can be denoted as Δ. max .

[0216] For example, in a Rel-18 DTDD scenario, in addition to supporting CLI measurements between UEs, it also supports CLI measurements between gNBs. That is, the aggressor network device sends the corresponding reference signal, and the victim network device receives the corresponding reference signal and performs interference measurements. Therefore, a synchronization error Δ between different network devices can be considered. max The situation.

[0217] For example, the instruction information may also carry the identifier of the network device. The identifier can be an ID or an index.

[0218] In some implementations, in S62, according to N TA，offset and N TA Determining the receiving time offset may also include: based on N TA，offset N TA Based on the synchronization error, determine the second reception time offset.

[0219] In some embodiments, the network device can be based on N TA，offset N TA and Δ max Determine the second receiving time offset.

[0220] It is understandable that the second time offset can be based on the first time offset, combined with Δ. max It's confirmed.

[0221] This disclosure determines the offset between the reception time and the downlink time slot boundary by using time advance offset, time advance, and synchronization error, so as to determine the reception time and perform interference measurement based on the offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0222] In the interference measurement method provided in this embodiment, the receiving time offset further includes a first receiving time offset. Figure 11 This is a flowchart illustrating another interference measurement method according to an exemplary embodiment. Figure 11 As shown, according to N TA，offset N TA Determining the second reception time offset, along with synchronization errors, may also include the following steps:

[0223] In step S61, based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset.

[0224] In some embodiments, the network device can be based on N TA，offset and N TA The first reception time offset is determined by multiplying by the sum of the first parameters. This can be understood as N... TA Multiply by the first parameter and treat it as a whole, and N TA，offset Perform summation.

[0225] For example, directly using N TA，offset and N TA Multiply by the sum of the first parameters to obtain the first reception time offset.

[0226] For example, N can be determined separately. TA，offset and N TA Multiply by the respective weighting coefficients of the first parameter. And based on N with weighting coefficients. TA，offset and N with weighted coefficients TA Multiply by the first parameter and sum to determine the first reception time offset.

[0227] In some embodiments, the network device can also be based on N TA，offset and N TA Multiply by the first parameter to perform possible algebraic operations. For example, with N... TA，offset and N TA Multiply by one or more of the first parameters, square and sum, or take the square root and sum, etc.

[0228] In step S62, a second receiving time offset is determined based on the sum of the first receiving time offset and the synchronization error.

[0229] In some embodiments, the network device may base its operation on the first reception time offset determined in S61 and Δ. max The sum of these values ​​determines the second receiving time offset.

[0230] For example, directly using the first receiving time offset and Δ max The sum of these values ​​serves as the second receiving time offset.

[0231] For example, the first reception time offset and Δ can be determined separately. max Each has its own weighting coefficient. And based on the first reception time offset with the weighting coefficient and the weighting coefficient Δ... max The summation is performed to determine the second receiving time offset.

[0232] This disclosure provides a specific implementation method for determining the reception time offset, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0233] In the interference measurement method provided in this embodiment, the serving cell of the terminal and its neighboring cells are heterogeneous networks, and the second reception time offset is... The first parameter is Alternatively, the serving cell where the terminal is located and its neighboring cells form a homogeneous network, and the second reception time offset is (N). TA，offset +N TA )T c +Δ max The first parameter is 1; where T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0234] In some embodiments, the network device may consider synchronization errors between network devices in different cells. These synchronization errors can be the synchronization errors between the network device in the serving cell and the network device in a neighboring cell. If the serving cell and the neighboring cell are HetNet, then the network device can determine the second reception time offset as follows: Wherein, the first parameter is T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0235] For example, if the serving cell and neighboring cells are HetNet, the reception time of the terminal receiving the reference signal, compared to the second reception time offset of the DL time slot boundary, can be... Wherein, the first parameter is Tc This is a fundamental quantity of time. It can be understood that T... c It can be pre-set or protocol-defined, representing a unit of time. For example, 1ms, 5μs, etc.

[0236] Understandable, specifically The process of determining the value can be referred to the description of the foregoing embodiments, and will not be repeated here.

[0237] In some embodiments, the network device may consider synchronization errors between network devices in different cells. These synchronization errors can be the synchronization errors between the network devices in the serving cell and those in neighboring cells. If the serving cell and neighboring cells are homogeneous networks, such as in an SBFD scenario, the network device can determine the second reception time offset as (N... TA，offset +N TA )T c +Δ max Where the first parameter is 1, T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0238] Understandable, specifically (N) TA，offset +N TA )T c The process of determining the value can be referred to the description of the foregoing embodiments, and will not be repeated here.

[0239] This disclosure provides a method for determining the reception time offset under different network structures, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0240] In the interference measurement method provided in this embodiment, N TA，offset N configured for neighboring cell terminals TA，offset Or, N TA，offset N configured for the terminal TA，offset .

[0241] In some embodiments, N TA，offset N can be configured for neighboring cell terminals TA，offset .

[0242] For example, network devices can determine the N configuration of neighboring cell terminals based on predefined rules or protocol specifications. TA，offset .

[0243] Of course, for N TA It can also be determined according to predefined rules or protocol provisions.

[0244] For example, network devices can send indication information that can instruct neighboring cell terminals on the N configuration. TA，offset This indication information can be related to the indication Δ. max The instruction information may be the same or different.

[0245] Of course, for N TA It can also be determined based on indication information sent by the network device. This indication information can be compared with indication N. TA，offset Indication information, indication Δ max One or more of the indication information are the same; or the indication information is the same as indication N. TA，offset Indication information, indication Δ max The instructions are all different.

[0246] It is clear that whether determining the first or second reception time offset, it is done by determining the N of the neighboring cells. TA，offset This ensures a more accurate and precise reception time.

[0247] In some embodiments, the network device can determine N TA，offset N can be configured for the terminals in the serving cell. TA，offset .

[0248] For example, assuming that in a DTDD scenario, DTDD primarily studies co-channel level interference measurements, such as co-channel level CLI, the cell where the aggressor terminal is located and the cell where the victim terminal is located are within the same carrier range. However, cell-level N... TA，offset This refers to the preparation time for uplink and downlink handover of network devices within a cell. It is primarily related to the TDD or FDD standard and the band the cell belongs to. In DTDD scenarios, since the serving cell and neighboring cells are within the same carrier range, their bands are the same. Based on the above, the cell-level N of the aggressor terminal can be considered... TA，offset , with the cell-level N of the victim terminal TA，offset same.

[0249] Therefore, considering that in some cases the terminal may not be able to obtain or know the cell-level N of the aggressor terminal, TA，offset The cell-level N of the victim terminal can be used. TA，offset Cell-level N replacing the aggressor terminal TA，offset .

[0250] This disclosure determines the reception time offset by replacing the cell-level TA of the neighboring cell with the cell-level TA of the serving cell. This allows for the determination of the reception time and the execution of interference measurements based on this reception time offset, thereby improving the accuracy and reducing the complexity of interference measurements.

[0251] In a more specific implementation, this disclosure describes the solution based on both the terminal side and the network device side.

[0252] Terminal side (taking CLI as the reference signal and CLI measurement as the interference measurement as an example):

[0253] The terminal determines the reception time of a single CLI reference signal based on the following method and performs the corresponding CLI measurement:

[0254] Method 1: Without considering synchronization errors between network devices (or synchronization errors between base stations equal to 0), the terminal determines the CLI reference signal reception time based on the following predefined method:

[0255] In the HetNet scenario, the terminal's SRS reception time relative to the TA offset of the DL slot is equal to... The first parameter is

[0256] In the SBFD scenario, the corresponding TA offset is equal to (N TA，offset +N TA )T c The first parameter is 1;

[0257] Where, N TA N TA，offset The TA corresponding to the victim terminal can be determined based on signaling configuration or a predefined method.

[0258] Method 2: Considering the synchronization error Δ between network devices max Under these conditions, the terminal determines the CLI reference signal reception time based on the following method:

[0259] In the HetNet scenario, the corresponding TA offset equals The first parameter is

[0260] In the SBFD scenario, the corresponding TA offset is equal to (N TA，offset +N TA )T c +Δ max The first parameter is 1;

[0261] Among them, the terminal for Δ maxBased on the signaling transmitted by the network device, the network device determines Δ based on the CLI reference signal measurement between gNB-to-gNB. max :

[0262] The victim network device measures the corresponding synchronization error based on the CLI reference signal reception time. The CLI reference signal is configured to carry the aggressor network device identification information.

[0263] Network device side (taking CLI reference signal as reference signal and CLI measurement as interference measurement as an example):

[0264] Network devices determine the reception time of a terminal for a single CLI RS based on the following method:

[0265] Method 1: Without considering synchronization errors between network devices (or synchronization errors between base stations equal to 0), the terminal determines the CLI reference signal reception time based on the following predefined method:

[0266] In the HetNet scenario, the terminal's SRS reception time relative to the TA offset of the DL slot is equal to... The first parameter is

[0267] In the SBFD scenario, the corresponding TA offset is equal to (N TA，offset +N TA )T c The first parameter is 1;

[0268] Where, N TA N TA，offset The TA corresponding to the victim terminal can be determined based on signaling configuration or a predefined method.

[0269] Method 2: Considering the synchronization error Δ between network devices max Under these conditions, the terminal determines the CLI reference signal reception time based on the following method:

[0270] In the HetNet scenario, the corresponding TA offset equals The first parameter is

[0271] In the SBFD scenario, the corresponding TA offset is equal to (N TA，offset +N TA )T c +Δ max The first parameter is 1;

[0272] Among them, the terminal for Δ max Based on the signaling transmitted by the network device, the network device determines Δ based on the CLI reference signal measurement between gNB-to-gNB.max :

[0273] The victim network device measures the corresponding synchronization error based on the CLI reference signal reception time. The CLI reference signal is configured to carry the aggressor network device identification information.

[0274] In a more specific implementation, this disclosure describes the solution based on the terminal side.

[0275] Assuming the terminal is a Rel-18 or later version terminal, and the terminal supports DTDD features, the terminal performs the corresponding CLI measurement reporting at the corresponding time-frequency domain location based on the network device configuration.

[0276] Without considering synchronization errors between network devices, the time offset by which the terminal receives the CLI reference signal ahead of the DLsymbol boundary is equal to: T offset =N TA，offset T c +T1+T2-T3. Where N is... TA，offset Configure TA information for the aggressor terminal, where T1 is the propagation delay between the victim terminal and the base station, T2 is the propagation delay between the aggressor terminal and the base station, and T3 is the propagation delay between the aggressor terminal and the victim terminal.

[0277] refer to Figure 12 This shows the case where the CLI reference signal is ahead of the DL symbol boundary by a time offset.

[0278] Based on the existing mechanism, the victim terminal cannot obtain the TA information of the aggressor terminal; therefore, the victim terminal cannot obtain the accurate CLI RS reception time. To solve this problem, specific solutions include:

[0279] Method 1: The terminal receives instruction signaling from the network device to determine the TA information of the aggressor terminal transmitting CLI reference signals. To reuse the existing protocol framework as much as possible, the corresponding TA information is based on the configuration of per-CLI reference signal resources. The TA information is determined through information exchange between base stations.

[0280] Method 2: The terminal uses its own configured TA information, such as N. TA，offset and N TA Determine the corresponding receiving time:

[0281] ·HetNet scenario

[0282] The HetNet scenario is a crucial example of Rel-18 DTDD, specifically addressing the coexistence of urban macrocells and microcells. Considering different communication requirements, urban macrocells correspond to a DL-dominated TDD UL / DL configuration, while microcells correspond to a UL-dominated TDD UL / DL configuration. This is based on the time offset T... offset =N TA，offset T c +T1+T2-T3, considering the relatively short distance between the victim and aggressor terminals causing mutual interference, the corresponding propagation delay T3 can be ignored. Simultaneously, considering the aggressor terminal is located in a city macrocell, and its distance to network equipment is short, the corresponding propagation delay between the aggressor terminal and neighboring cell network equipment can also be ignored (e.g., approximately 0.17µs for 52m). From another perspective, DTDD primarily studies co-channel level CLI, where the aggressor terminal's cell and the victim terminal's cell are within the same carrier range, while N... TA，offset The preparation time for base station to perform U / D handover is mainly related to the TDD / FDD standard and the band it belongs to. Based on the above analysis, the aggressor terminal and the victim terminal are the same, that is, N TA，offset，aggressor =N TA，offset，victim .

[0283] In summary, in the HetNet scenario, the time offset for the victim terminal to receive the CLI reference signal is: Wherein, the first parameter is

[0284] ·SBFD scenario

[0285] In SBFD scenarios, advanced terminals supporting SBFD can configure UL subband in DL time slots and transmit uplink data on the UL subband. For legacy terminals that do not support SBFD, they transmit downlink data normally in DL time slots. The uplink data sent by the corresponding advanced terminal will interfere with the downlink reception of the legacy terminal. The advanced and legacy terminals can come from the same cell or different cells.

[0286] Based on time offset: T offset =N TA，offset T c+T1+T2-T3, considering the relatively short distance between the interfering victim and aggressor terminals, the corresponding propagation delay T3 can be ignored. Simultaneously, considering the aggressor terminal is located at the edge of the city macrocell, the propagation delay from the aggressor terminal to the neighboring cell network device is approximately the same as the propagation delay from the victim terminal to the serving cell network device, i.e., T2≈T1. From another perspective, DTDD primarily studies co-channel level CLI, where the aggressor terminal's cell and the victim terminal's cell are within the same carrier range, and N... TA，offset The preparation time for base station to perform U / D handover is mainly related to the TDD / FDD standard and the band it belongs to. Based on the above analysis, the aggressor terminal and the victim terminal are the same, that is, N TA，offset，aggressor =N TA，offset，victim .

[0287] In summary, in the SBFD scenario, the victim terminal receives CLI resources with a time offset of T. offset =N TA， offset T c +T1+T2-T3≈N TA，offset T c +2T1=(N TA，offset +N TA )T c The first parameter is 1.

[0288] This embodiment mainly considers two scenarios: HetNet and SBFD. Based on the victim terminal's own TA information, the CLI reference signal reception time is determined based on predefined rules. While minimizing the influence of standards, the CLI measurement accuracy is improved and the CLI measurement complexity is reduced.

[0289] In a more specific implementation, this disclosure describes the solution from the perspective of network devices.

[0290] Assuming the network device is a Rel-18 or later version and the terminal supports DTDD, the terminal performs the corresponding CLI measurement reporting at the corresponding time-frequency domain location based on the network device configuration.

[0291] Considering the synchronization error Δ between network devices max Under these conditions, the time offset by which the terminal receives the CLI reference signal relative to the DL symbol boundary is equal to T. offset +Δ max , among which, Toffset It can be determined based on the above implementation method.

[0292] In Rel-18 DTDD scenarios, in addition to supporting UE-to-UE CLI measurements, gNB-to-gNB CLI measurements are also supported. That is, the aggressor network device sends the corresponding CLI reference signal, and the victim network device receives the corresponding CLI reference signal and performs CLI measurements. For example... Figure 13 As shown, if the synchronization error Δ between base stations is considered... max The time difference between the arrival time of the CLI reference signal at the victim network device and the time difference between the arrival time at the corresponding DL symbol boundary of the victim network device is equal to: T delay +Δ max Among them, T delay The CLI reference signal propagation delay is equal to the distance between the victim network device and the aggressor network device. For example, if the distance between the network devices is 500m, the corresponding CLI reference signal propagation delay T is... delay =1.67μs.

[0293] Based on the above conclusions, the Victim network device measures the corresponding synchronization error based on the CLI reference signal reception time. The CLI reference signal configuration carries the aggressor network device identification information. To improve the corresponding measurement accuracy, the Victim network device does not expect to measure CLI reference signals from different aggressor network devices in the same time-frequency domain.

[0294] The network device sends a signaling message to indicate the synchronization error Δ between the victim terminal and the different aggressor terminals. max Considering that the victim terminal performs corresponding measurements based on the CLI reference signal of its local cell, it cannot know the aggressor terminal that sent the CLI reference signal or its serving cell. The network device configures the corresponding synchronization error Δ based on the per-CLI reference signal. max It also sends a signaling instruction to the terminal, which is used by the terminal to determine whether to receive the CLI reference signal for UE-to-UE measurement, corresponding to a time offset equal to T. offset +Δ max .

[0295] This embodiment primarily considers the synchronization error Δ between network devices. max The design mechanism measures the corresponding synchronization error Δ max This is used to determine the time when the victim terminal receives the CLI reference signal.

[0296] It should be noted that those skilled in the art will understand that the various implementation methods / embodiments described above in this disclosure can be used in conjunction with the foregoing embodiments, or they can be used independently. Whether used alone or in conjunction with the foregoing embodiments, the implementation principle is similar. In this disclosure, some embodiments are described as implementations used together. Of course, those skilled in the art will understand that such illustrative examples are not intended to limit the embodiments of this disclosure.

[0297] Based on the same concept, embodiments of this disclosure also provide a communication device or apparatus.

[0298] It is understood that the communication apparatus and devices provided in this disclosure, in order to achieve the above-mentioned functions, include hardware structures and / or software modules corresponding to the execution of each function. In conjunction with the units and algorithm steps of the various examples disclosed in this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of this disclosure.

[0299] Figure 14 This is a schematic diagram of a communication device according to an exemplary embodiment. (Refer to...) Figure 14 The device 200 includes: a processing module 201 for determining the reception time of a reference signal, wherein there is an offset between the reception time and the DL time slot boundary, the DL time slot boundary being the starting time position for receiving downlink data; a receiving module 202 for receiving the reference signal based on the reception time; and the processing module 201 is further configured to perform interference measurement.

[0300] This disclosure improves the accuracy and reduces the complexity of interference measurement by determining the reception time of a reference signal that is offset from the downlink time slot boundary to perform interference measurement.

[0301] In some implementations, the processing module 201 is further configured to: determine the time advance offset N TA，offset and lead time N TA , where N TA，offset and N TA Used to describe the TA corresponding to the terminal in the serving cell; based on N TA，offset and N TA Determine the receiving time offset; based on the receiving time offset and the DL time slot boundary, determine the receiving time.

[0302] This disclosure determines the offset between the reception time and the downlink time slot boundary by using a time advance offset and a time advance, so as to determine the reception time and perform interference measurement based on the offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0303] In some implementations, the reception time offset includes a first reception time offset; the processing module 201 is further configured to: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset.

[0304] This disclosure provides a specific implementation method for determining the reception time offset, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0305] In some implementations, the serving cell and neighboring cells are heterogeneous networks, and the first reception time offset is... The first parameter is Alternatively, the serving cell and neighboring cells form a homogeneous network, and the first reception time offset is (N). TA，offset +N TA )T c The first parameter is 1; where T c It is a basic quantity of time.

[0306] This disclosure provides a method for determining the reception time offset under different network structures, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0307] In some implementations, the reception time offset includes a second reception time offset; the receiving module 202 is further configured to receive indication information, the indication information being used to indicate the synchronization error between the first network device of the serving cell and the second network device of the neighboring cell; the processing module 201 is further configured to, according to N TA，offset N TA Based on the synchronization error, determine the second reception time offset.

[0308] This disclosure determines the offset between the reception time and the downlink time slot boundary by using time advance offset, time advance, and synchronization error, so as to determine the reception time and perform interference measurement based on the offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0309] In some implementations, the reception time offset further includes a first reception time offset; the processing module 201 is also configured to: based on N TA，offset and N TAMultiply by the sum of the first parameters to determine the first reception time offset; based on the sum of the first reception time offset and the synchronization error, determine the second reception time offset.

[0310] This disclosure provides a specific implementation method for determining the reception time offset, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0311] In some implementations, the serving cell where the terminal is located and neighboring cells form a heterogeneous network, and the second reception time offset is... The first parameter is Alternatively, the serving cell where the terminal is located and its neighboring cells

[0312] The regions form a homogeneous network, and the second reception time offset is (N) TA，offset +N TA )T c +Δ max The first parameter is 1; where T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0313] This disclosure provides a method for determining the reception time offset under different network structures, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0314] In some implementations, N TA，offset N configured for neighboring cell terminals TA，offset Or, N TA，offset N configured for the terminal TA，offset .

[0315] This disclosure determines the reception time offset by using the cell-level TA of the serving cell or neighboring cells. This allows for the determination of the reception time and the execution of interference measurements based on the reception time offset, thereby improving the accuracy and reducing the complexity of interference measurements.

[0316] Figure 15 This is a schematic diagram of another communication device according to an exemplary embodiment. (Refer to...) Figure 15 The device 300 includes: a processing module 301, used to determine the reception time of a reference signal, wherein there is an offset between the reception time and the DL time slot boundary, the DL time slot boundary being the starting time position of the terminal receiving downlink data; and a transmission module 302, used to determine, based on the reception time, not to transmit downlink data in the corresponding time slot, wherein the reception time is used to instruct the terminal to receive the reference signal and to perform interference measurement.

[0317] This disclosure improves the accuracy and reduces the complexity of interference measurement by determining the reception time of a reference signal that is offset from the downlink time slot boundary to perform interference measurement.

[0318] In some implementations, the processing module 301 is further configured to: determine the time advance offset N TA，offset and lead time N TA , where N TA，offset and N TA Used to describe the TA corresponding to the terminal in the serving cell; based on N TA，offset and N TA Determine the receiving time offset; based on the receiving time offset and the DL time slot boundary, determine the receiving time.

[0319] This disclosure determines the offset between the reception time and the downlink time slot boundary by using a time advance offset and a time advance, so as to determine the reception time and perform interference measurement based on the offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0320] In some implementations, the reception time offset includes a first reception time offset; the processing module 301 is further configured to: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset.

[0321] This disclosure provides a specific implementation method for determining the reception time offset, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0322] In some implementations, the serving cell and neighboring cells are heterogeneous networks, and the first reception time offset is... The first parameter is Alternatively, the serving cell and neighboring cells form a homogeneous network, and the first reception time offset is (N). TA，offset +N TA )T c The first parameter is 1; where T c It is a basic quantity of time.

[0323] This disclosure provides a method for determining the reception time offset under different network structures, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0324] In some implementations, the reception time offset includes a second reception time offset; the transmitting module 302 is further configured to transmit indication information, the indication information being used to indicate the synchronization error between the first network device of the serving cell and the second network device of the neighboring cell; the processing module 301 is further configured to, according to N TA，offset N TA Based on the synchronization error, determine the second reception time offset.

[0325] This disclosure determines the offset between the reception time and the downlink time slot boundary by using time advance offset, time advance, and synchronization error, so as to determine the reception time and perform interference measurement based on the offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0326] In some implementations, the reception time offset further includes a first reception time offset; the processing module 301 is also configured to: based on N TA，offset and N TA Multiply by the sum of the first parameters to determine the first reception time offset; based on the sum of the first reception time offset and the synchronization error, determine the second reception time offset.

[0327] This disclosure provides a specific implementation method for determining the reception time offset, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0328] In some implementations, the serving cell where the terminal is located and its neighboring cells are heterogeneous networks, and the second reception time offset is... The first parameter is Alternatively, the serving cell where the terminal is located and its neighboring cells form a homogeneous network, and the second reception time offset is (N). TA，offset +N TA )T c +Δ max The first parameter is 1; where T c Δ is a fundamental quantity of time. max This is the synchronization error.

[0329] This disclosure provides a method for determining the reception time offset under different network structures, so as to determine the reception time and perform interference measurement based on the reception time offset, thereby improving the accuracy of interference measurement and reducing the complexity of interference measurement.

[0330] In some implementations, N TA，offset N configured for neighboring cell terminals TA，offset Or, N TA，offset N configured for the terminal TA，offset .

[0331] This disclosure determines the reception time offset by using the cell-level TA of the serving cell and neighboring cells. This allows for the determination of the reception time and the execution of interference measurements based on the reception time offset, thereby improving the accuracy and reducing the complexity of interference measurements.

[0332] It is understood that the aforementioned device 200 may further include a transmitting module, and the device 300 may further include a receiving module. It should be understood that the aforementioned devices 200 and 300 are not limited to the modules shown in the figures, and may include other corresponding modules depending on the actual situation; this disclosure does not impose any limitations.

[0333] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0334] Figure 16 This is a schematic diagram of a communication device according to an exemplary embodiment. For example, device 400 can be any terminal such as a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0335] Reference Figure 16 The device 400 may include one or more of the following components: processing component 402, memory 404, power component 406, multimedia component 408, audio component 410, input / output (I / O) interface 412, sensor component 414, and communication component 416.

[0336] Processing component 402 typically controls the overall operation of device 400, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0337] Memory 404 is configured to store various types of data to support the operation of device 400. Examples of this data include instructions for any application or method operating on device 400, contact data, phonebook data, messages, pictures, videos, etc. Memory 404 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0338] The power supply component 406 provides power to the various components of the device 400. The power supply component 406 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 400.

[0339] Multimedia component 408 includes a screen that provides an output interface between the device 400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 408 includes a front-facing camera and / or a rear-facing camera. When the device 400 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0340] Audio component 410 is configured to output and / or input audio signals. For example, audio component 410 includes a microphone (MIC) configured to receive external audio signals when device 400 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 404 or transmitted via communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.

[0341] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0342] Sensor assembly 414 includes one or more sensors for providing status assessments of various aspects of device 400. For example, sensor assembly 414 may detect the on / off state of device 400, the relative positioning of components such as the display and keypad of device 400, changes in the position of device 400 or a component of device 400, the presence or absence of user contact with device 400, the orientation or acceleration / deceleration of device 400, and temperature changes of device 400. Sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 414 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0343] Communication component 416 is configured to facilitate wired or wireless communication between device 400 and other devices. Device 400 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 416 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0344] In an exemplary embodiment, device 400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0345] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, which can be executed by a processor 420 of device 400 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0346] Figure 17 This is a schematic diagram of another communication device according to an exemplary embodiment. For example, device 500 may be provided as a base station or a server. (See also...) Figure 17The device 500 includes a processing component 522, which further includes one or more processors, and memory resources represented by memory 532 for storing instructions executable by the processing component 522, such as application programs. The application programs stored in memory 532 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 522 is configured to execute instructions to perform the methods described above.

[0347] Device 500 may also include a power supply component 526 configured to perform power management of device 500, a wired or wireless network interface 550 configured to connect device 500 to a network, and an input / output (I / O) interface 558. Device 500 can operate on an operating system stored in memory 532, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0348] In some embodiments, this disclosure also provides a communication system including a terminal and a network device. The terminal can perform the above-described... Figures 5 to 8 The described method. Network devices can perform... Figures 9 to 11 The methods described herein are as follows. Please refer to the descriptions of the embodiments above for details, which will not be repeated here.

[0349] This disclosure determines the CLI reference signal reception time, improves the corresponding CLI measurement accuracy, and reduces the CLI measurement complexity.

[0350] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0351] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0352] It is further understood that the meaning of words such as “responding to” and “if” used in this disclosure depends on the context and the actual usage scenario. For example, the word “responding to” as used herein can be interpreted as “when” or “if” or “if”.

[0353] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0354] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein.

[0355] 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. An interference measurement method, characterized in that, The method is executed by a terminal and includes: Determine the reception time of the reference signal, wherein there is an offset between the reception time and the downlink DL time slot boundary, and the DL time slot boundary is the starting time position for receiving downlink data; The reference signal is received based on the received time; Perform interference measurements; The determination of the reception time of the reference signal includes: Determine the time advance offset and lead time , wherein and stated Used to describe the time advance (TA) of the terminal in the serving cell; The receiving time is determined based on the receiving time offset and the DL time slot boundary; Wherein, the receiving time offset includes a first receiving time offset; Based on the above and stated The first reception time offset is determined by multiplying by the sum of the first parameters, wherein the first parameters corresponding to the serving cell and the neighboring cell being heterogeneous networks are different from the first parameters corresponding to the serving cell and the neighboring cell being homogeneous networks. The receiving time offset includes a second receiving time offset, and the method further includes: Receive indication information, the indication information being used to indicate the synchronization error between the first network device of the serving cell and the second network device of the neighboring cell; based on the and stated The first reception time offset is determined by multiplying by the sum of the first parameters; the second reception time offset is determined based on the sum of the first reception time offset and the synchronization error.

2. The method according to claim 1, characterized in that, The serving cell and neighboring cells are heterogeneous networks, and the first reception time offset is... The first parameter is ; or, The serving cell and neighboring cells form a homogeneous network, and the first reception time offset is... The first parameter is 1; Among them, the It is a basic quantity of time.

3. The method according to claim 1, characterized in that, The serving cell where the terminal is located and its neighboring cells are in heterogeneous networks, and the second receiving time offset is... The first parameter is ; or, The serving cell where the terminal is located and its neighboring cells are in a homogeneous network, and the second receiving time offset is... The first parameter is 1; Among them, the As a fundamental quantity of time, the stated The synchronization error is denoted as .

4. The method according to any one of claims 1-3, characterized in that, The Configured for neighboring cell terminals ; or, the aforementioned Configured for the terminal .

5. An interference measurement method, characterized in that, The method is executed by a network device and includes: Determine the reception time of the reference signal, wherein there is an offset between the reception time and the downlink DL time slot boundary, and the DL time slot boundary is the starting time position of the terminal receiving downlink data; Based on the received time, it is determined that no downlink data will be transmitted in the corresponding time slot, wherein the time slot corresponding to the received time is used for the terminal to receive reference signals and perform interference measurement; The determination of the reception time of the reference signal includes: Determine the time advance offset and lead time , wherein and stated Used to describe the time advance (TA) of the terminal in the serving cell; The receiving time is determined based on the receiving time offset and the DL time slot boundary; Wherein, the receiving time offset includes a first receiving time offset; Based on the above and stated The first reception time offset is determined by multiplying by the sum of the first parameters, wherein the first parameters corresponding to the serving cell and the neighboring cell being heterogeneous networks are different from the first parameters corresponding to the serving cell and the neighboring cell being homogeneous networks. The receiving time offset includes a second receiving time offset; the method further includes: Sending indication information, the indication information being used to indicate the synchronization error between the first network device of the serving cell and the second network device of the neighboring cell; based on the and stated The first reception time offset is determined by multiplying by the sum of the first parameters; the second reception time offset is determined based on the sum of the first reception time offset and the synchronization error.

6. The method according to claim 5, characterized in that, The serving cell and neighboring cells are heterogeneous networks, and the first reception time offset is... The first parameter is ; or, The serving cell and neighboring cells form a homogeneous network, and the first reception time offset is... The first parameter is 1; Among them, the It is a basic quantity of time.

7. The method according to claim 5, characterized in that, The serving cell where the terminal is located and its neighboring cells are in heterogeneous networks, and the second receiving time offset is... The first parameter is ; or, The serving cell where the terminal is located and its neighboring cells form a homogeneous network, and the second reception time offset is... The first parameter is 1; Among them, the As a fundamental quantity of time, the stated The synchronization error is denoted as .

8. The method according to any one of claims 5-7, characterized in that, The Configured for neighboring cell terminals Or, the aforementioned Configured for the terminal .

9. A communication device, characterized in that, The device includes: The processing module is used to determine the reception time of the reference signal, wherein there is an offset between the reception time and the downlink DL time slot boundary, and the DL time slot boundary is the starting time position for receiving downlink data; The receiving module is used to receive a reference signal based on the receiving time; The processing module is also used to perform interference measurements; The processing module determines the time advance offset. and lead time , wherein and stated Used to describe the time advance (TA) of the terminal in the serving cell; The receiving time is determined based on the receiving time offset and the DL time slot boundary; Wherein, the receiving time offset includes a first receiving time offset; Based on the above and stated The first reception time offset is determined by multiplying by the sum of the first parameters, wherein the first parameters corresponding to the serving cell and the neighboring cell being heterogeneous networks are different from the first parameters corresponding to the serving cell and the neighboring cell being homogeneous networks. The receiving time offset includes a second receiving time offset, and the method further includes: Receive indication information, the indication information being used to indicate the synchronization error between the first network device of the serving cell and the second network device of the neighboring cell; based on the and stated The first reception time offset is determined by multiplying by the sum of the first parameters; the second reception time offset is determined based on the sum of the first reception time offset and the synchronization error.

10. A communication device, characterized in that, The device includes: The processing module is used to determine the reception time of the reference signal, wherein there is an offset between the reception time and the downlink DL time slot boundary, and the DL time slot boundary is the starting time position of the terminal receiving downlink data; The transmitting module is used to determine, based on the receiving time, not to transmit downlink data in the corresponding time slot, wherein the time slot corresponding to the receiving time is used for the terminal to receive a reference signal and perform interference measurement; The processing module determines the time advance offset. and lead time , wherein and stated Used to describe the time advance (TA) of the terminal in the serving cell; The receiving time is determined based on the receiving time offset and the DL time slot boundary; Wherein, the receiving time offset includes a first receiving time offset; Based on the above and stated The first reception time offset is determined by multiplying by the sum of the first parameters, wherein the first parameters corresponding to the serving cell and the neighboring cell being heterogeneous networks are different from the first parameters corresponding to the serving cell and the neighboring cell being homogeneous networks. The receiving time offset includes a second receiving time offset; the method further includes: Sending indication information, the indication information being used to indicate the synchronization error between the first network device of the serving cell and the second network device of the neighboring cell; based on the and stated The first reception time offset is determined by multiplying by the sum of the first parameters; the second reception time offset is determined based on the sum of the first reception time offset and the synchronization error.

11. A communication device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to execute the method described in any one of claims 1-4.

12. A communication device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to perform the method described in any one of claims 5-8.

13. A communication system, characterized in that, The system includes: terminals and network devices; The terminal is used to perform the method described in any one of claims 1-4; The network device is used to perform the method described in any one of claims 5-8.

14. A computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the terminal, the terminal is able to perform the method described in any one of claims 1-4.

15. A computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the network device, the network device is able to perform the method of any one of claims 5-8.

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