Pilot frequency measurement method and device

Abstract

A pilot frequency measurement method and device, the method comprising: a terminal receiving first configuration information from an access network device, the first configuration information being used for configuring a measurement gap MG; the terminal sends a first negative acknowledgement (NACK) to the access network equipment, wherein the first NACK is used for indicating a receiving error of the first downlink data; and the terminal skips pilot frequency measurement within the MG of the first duration after the first NACK is sent. Since the terminal may receive the retransmitted first downlink data within the first duration when the terminal sends the first NACK to the access network device, and the terminal skips pilot frequency measurement in the MG of the first duration after the first NACK, the terminal can be ensured to receive the retransmitted first downlink data, and the reliability of the terminal service is ensured.

Description

Technical Field

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

[0002] With the continuous development of wireless communication systems, data transmission delay is continuously reduced, and transmission capacity is increasing. Wireless communication systems are gradually infiltrating some services with strong real-time requirements and large data capacity requirements, such as video transmission, cloud gaming (CG), and extended reality (XR). Among them, XR refers to a real and virtual combination of human-computer interactive environment generated by computer technology and wearable devices. It is a general term for various forms such as augmented reality (AR) and virtual reality (VR). Taking XR service as an example, when the terminal receives the downlink data corresponding to the retransmitted XR service, it may overlap or conflict with the measurement gap (MG) used for inter-frequency measurement. At this time, how the terminal performs inter-frequency measurement is a research direction. Summary of the invention

[0003] The embodiments of the present application provide an inter-frequency measurement method and device to implement inter-frequency measurement of a terminal.

[0004] In a first aspect, a communication method is provided, wherein the execution subject of the method is a terminal, or a module in the terminal (for example, a chip or a circuit), etc. Taking the terminal as the execution subject as an example, the method includes: the terminal receives first configuration information from an access network device, and the first configuration information is used to configure a measurement gap MG; the terminal sends a first negative acknowledgment NACK to the access network device, and the first NACK is used to indicate a reception error of first downlink data; the terminal skips heterofrequency measurement within a first duration MG after sending the first NACK.

[0005] Through the above design, for the downlink communication scenario, when the first downlink data is received incorrectly, the terminal sends a first NACK to the access network device. In the subsequent period of time (the period of time is the first time length), the first downlink data is preferably retransmitted. For example, the access network device retransmits the first downlink data to the terminal within the first time length. The terminal can receive the retransmitted first downlink data within the first time length. The terminal no longer performs heterodyne measurement within the MG of the first time length, thereby ensuring the reception of the retransmitted downlink data and ensuring the reliability of the terminal service.

[0006] In one design, the first duration is equal to the sum of the durations of the first timer and the second timer; wherein the first timer is used to skip monitoring of the physical downlink control channel PDCCH during operation, and the second timer is used to monitor the PDCCH during operation. Further, during the operation of the second timer, when the terminal monitors its own PDCCH, the terminal can receive the retransmitted first downlink data according to the scheduling of the PDCCH. For example, the PDCCH includes downlink control information, and the downlink control information is used to schedule the retransmission of downlink data of the terminal.

[0007] In one design, the first duration is less than the sum of the durations of the first timer and the second timer; wherein the operation period of the first timer is used for skipping PDCCH monitoring, and the operation period of the second timer is used for monitoring PDCCH.

[0008] Through the above design, during the operation of the second timer, if the terminal receives the correctly retransmitted first downlink data, the terminal will resume the MG's inter-frequency measurement after sending the first ACK to the access network device, without waiting until the second timer ends to resume the MG's inter-frequency measurement. While ensuring the terminal retransmits data, the waiting time for the terminal's inter-frequency measurement is reduced.

[0009] In one design, it also includes: when sending a first NACK to the access network device, the terminal starts a first timer; when the first timer times out, the terminal starts a second timer.

[0010] In one design, the first duration is equal to the duration of a third timer, and the duration of the third timer is predefined or configured by the access network device.

[0011] In one design, the first duration is smaller than a duration of a third timer, and the duration of the third timer is predefined or configured by the access network device.

[0012] Through the above design, during the operation of the third timer, if the terminal receives the correctly retransmitted first downlink data, the terminal will resume the MG's inter-frequency measurement after sending the first ACK to the access network device, without waiting until the third timer times out to resume the MG's inter-frequency measurement. This reduces the waiting time for the terminal's inter-frequency measurement while ensuring the terminal's data retransmission.

[0013] In one design, it also includes: when sending the first NACK to the access network device, the terminal starts a third timer.

[0014] The second aspect is a contralateral method corresponding to the first aspect. For the beneficial effects, please refer to the description of the first aspect. A communication method is provided. The execution subject of the method is an access network device, or a module in the access network device (such as a chip or circuit, etc.), or a logical node, logical module or software that fully or partially implements the functions of the access network device. Taking the access network device as the execution subject as an example, the method includes: the access network device sends first configuration information to the terminal, and the first configuration information is used to configure the measurement gap MG; the access network device receives a first negative acknowledgment NACK from the terminal, and the first NACK is used to indicate a reception error of the first downlink data; the access network device retransmits the first downlink data to the terminal within a first time length after receiving the first NACK.

[0015] In one design, the first duration is equal to the sum of the durations of the first timer and the second timer; wherein the operation period of the first timer is used for skipping physical downlink control channel PDCCH monitoring, and the operation period of the second timer is used for PDCCH monitoring.

[0016] In one design, the first duration is less than the sum of the durations of the first timer and the second timer; wherein the operation period of the first timer is used for skipping PDCCH monitoring, and the operation period of the second timer is used for monitoring PDCCH.

[0017] In one design, it also includes: when receiving a first NACK from the terminal, the access network device starts a first timer; when the first timer times out, the access network device starts a second timer.

[0018] In one design, the first duration is equal to the duration of a third timer, and the duration of the third timer is predefined or configured by the access network device.

[0019] In one design, the first duration is smaller than a duration of a third timer, and the duration of the third timer is predefined or configured by the access network device.

[0020] In one design, the method further includes: when receiving a first NACK from the terminal, the access network device starts a third timer.

[0021] According to a third aspect, a communication method is provided, wherein the execution subject of the method is a terminal, or a module in the terminal (for example, a chip or a circuit), etc., and taking the terminal as the execution subject as an example, the method includes: the terminal receives second configuration information from an access network device, and the second configuration information is used to configure a measurement gap MG; the terminal sends a second negative confirmation NACK to the access network device, and starts a fourth timer, and the fourth timer is used to skip the physical downlink control channel PDCCH monitoring during its operation, and the second NACK is used to indicate a reception error of the second downlink data; when the fourth timer times out, the terminal starts a fifth timer, and the fifth timer is used to monitor the PDCCH during its operation; the terminal skips the heterofrequency measurement within a second duration MG after starting the fifth timer.

[0022] Through the above design, in the downlink communication scenario, when the second downlink data is received incorrectly, the terminal sends a second NACK to the access network device. The terminal starts the fourth timer. During the operation of the fourth timer, the terminal does not monitor the PDCCH. When the fourth timer times out, the terminal starts the fifth timer. Within the second duration of the MG after starting the fifth timer, the terminal does not perform inter-frequency measurement, thereby ensuring the retransmission of the downlink data and the reliability of the terminal service.

[0023] In one design, the second duration is equal to the duration of the fifth timer.

[0024] In one design, the second duration is shorter than a duration of the fifth timer.

[0025] Through the above design, during the operation of the fifth timer, when the terminal receives the retransmitted second downlink data, if the retransmitted second downlink data is received correctly, the terminal sends a second ACK to the access network device. Thereafter, the terminal can perform heterofrequency measurement normally according to the MG without waiting until the fifth timer times out before performing heterofrequency measurement. This ensures that the terminal retransmits data and reduces the time the terminal waits for heterofrequency measurement.

[0026] In one design, the second duration is equal to the duration of a sixth timer, and the duration of the sixth timer is predefined or configured by the access network device.

[0027] In one design, the second duration is smaller than a duration of a sixth timer, and the duration of the sixth timer is predefined or configured by the access network device.

[0028] Through the above design, in the scenario of downlink communication, the terminal does not have to wait until the sixth timer times out before performing inter-frequency measurement. During the operation of the sixth timer, if the terminal sends a second ACK to the access network device, the terminal can perform inter-frequency measurement after the terminal sends the second ACK. The terminal preferentially receives the retransmitted downlink data, while ensuring the transmission of the retransmitted data, and further reduces the waiting time for the terminal inter-frequency measurement.

[0029] In one design, it also includes: when starting the fifth timer, the terminal starts a sixth timer.

[0030] The fourth aspect is a contralateral method corresponding to the third aspect. For the beneficial effects, please refer to the description of the third aspect. A communication method is provided. The execution subject of the method is an access network device, or a module in the access network device (such as a chip or circuit, etc.), or a logical node, logical module or software that fully or partially implements the functions of the access network device. Taking the access network device as the execution subject as an example, the method includes: the access network device sends second configuration information to the terminal, and the second configuration information is used to configure the measurement gap MG; the access network device receives a second negative acknowledgment NACK from the terminal, and starts a fourth timer. The fourth timer is used to skip the physical downlink control channel PDCCH monitoring during its operation, and the second NACK is used to indicate a reception error of the second downlink data; when the fourth timer times out, the access network device starts a fifth timer, and the fifth timer is used to monitor the PDCCH during its operation; the access network device retransmits the second downlink data to the terminal within the second duration of starting the fifth timer.

[0031] In one design, the second duration is equal to the duration of the fifth timer.

[0032] In one design, the second duration is shorter than a duration of the fifth timer.

[0033] In one design, the second duration is equal to the duration of a sixth timer, and the duration of the sixth timer is predefined or configured by the access network device.

[0034] In one design, the second duration is smaller than a duration of a sixth timer, and the duration of the sixth timer is predefined or configured by the access network device.

[0035] In one design, it also includes: when starting the fifth timer, the access network device starts a sixth timer.

[0036] In a fifth aspect, a device is provided, which can implement the method of the first aspect or the third aspect. For example, the device includes means for executing the corresponding method of the first aspect or the third aspect. The device can be implemented by hardware, software, or by executing the corresponding software implementation by hardware.

[0037] In one design, the apparatus includes a unit for performing the first aspect or the third aspect described above.

[0038] In one design, the apparatus includes a processor configured to execute the method of the first aspect or the third aspect.

[0039] In one design, the device includes a processor and an interface circuit, the interface circuit is used to receive signals from other devices outside the device and transmit them to the processor or send signals from the processor to other devices outside the device, and the processor is used to implement the method in the first or third aspect above through logic circuits or execution code instructions.

[0040] In one design, the device includes a processor and a memory, and the processor is used to execute a computer program or instruction stored in the memory, so that the device implements the method of the first aspect or the third aspect mentioned above.

[0041] In one design, the device may be a first device, or a module or unit (for example, a chip, or a chip system, or a circuit) in the first device that corresponds one-to-one to executing the method / operation / step / action described in the first aspect or the third aspect, or may be capable of being used in combination with the first device.

[0042] In a sixth aspect, a device is provided, which can implement the method of the second aspect or the fourth aspect. For example, the device includes means for executing the corresponding method of the second aspect or the fourth aspect. The device can be implemented by hardware, software, or by executing the corresponding software implementation by hardware.

[0043] In one design, the apparatus includes a unit for performing the second aspect or the fourth aspect described above.

[0044] In one design, the apparatus includes a processor configured to execute the method of the second aspect or the fourth aspect.

[0045] In one design, the device includes a processor and an interface circuit, the interface circuit is used to receive signals from other devices outside the device and transmit them to the processor or send signals from the processor to other devices outside the device, and the processor is used to implement the method in the second aspect or the fourth aspect above through logic circuits or execution code instructions.

[0046] In one design, the device includes a processor and a memory, and the processor is used to execute a computer program or instructions stored in the memory, so that the device implements the method of the second aspect or the fourth aspect above.

[0047] In one design, the device may be a second device, or a module or unit (for example, a chip, or a chip system, or a circuit) in the second device that corresponds one-to-one to executing the method / operation / step / action described in the second aspect or the fourth aspect, or may be capable of being used in combination with the second device.

[0048] In a seventh aspect, a computer-readable storage medium is provided, storing a computer program or instruction. When the computer program or instruction is executed on a computer, the computer implements the method of any one of the first to fourth aspects.

[0049] In an eighth aspect, a computer program product is provided, comprising a computer program or instructions, which, when executed by a computer, enables the method of any one of the first to fourth aspects to be executed.

[0050] In a ninth aspect, a chip is provided, comprising a processor, wherein the processor is coupled to a memory and is used to execute a computer program or instruction stored in the memory, so that the chip implements the method of any one of the first to fourth aspects above.

[0051] In the tenth aspect, a communication system is provided, comprising: a first communication device and a second communication device; wherein the first communication device is used to implement the method of the first aspect, and the second communication device is used to implement the method of the second aspect; or, the first communication device is used to implement the method of the third aspect, and the second communication device is used to implement the method of the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0053] Figure 2 A schematic diagram of the XR service and MG provided in an embodiment of the present application;

[0054] Figure 3 A schematic diagram of a process provided for an embodiment of the present application;

[0055] Figure 4 A schematic diagram of a MG provided in an embodiment of the present application;

[0056] Figure 5 A schematic diagram of a DRX cycle provided in an embodiment of the present application;

[0057] Figure 6 A schematic diagram of a timer in a DRX mechanism provided in an embodiment of the present application;

[0058] Figures 7 to 9 A schematic diagram of a first duration provided in an embodiment of the present application;

[0059] Fig.10 Another schematic diagram of a process flow provided in an embodiment of the present application;

[0060] Fig.11 and Fig.12 A schematic diagram of a second duration provided in an embodiment of the present application;

[0061] Fig.13 and Fig.14 A schematic diagram of the structure of the device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solution and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings. The specific operation methods, functional descriptions, etc. in the method embodiments can also be applied to the device embodiments or system embodiments.

[0063] Figure 1 FIG. 1 is a schematic diagram showing a possible, non-limiting system. Figure 1 As shown, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the Internet 300 is also included.

[0064] The RAN 100 includes at least one RAN node (eg, Figure 1 110a and 110b, etc., may be collectively referred to as 110) and at least one terminal (e.g., Figure 1 120a to 120j, etc., may be collectively referred to as 120). RAN100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment, etc. ( Figure 1 not shown).

[0065] The terminal 120 can be connected to the RAN node 110 in a wireless manner. The RAN node 110 is connected to the core network 200 in a wireless or wired manner. The core network device in the core network 200 and the RAN node 110 in the RAN 100 can be different physical devices, or they can be the same physical device that integrates the core network device logical functions and the radio access network logical functions.

[0066] RAN100 may be a cellular system related to the 3rd generation partnership project (3GPP), for example, a 4th generation (4G) mobile communication system, a 5th generation (5G) mobile communication system, or a future-oriented evolution system, for example, a 6th generation (6G) mobile communication system. RAN100 may also be an open access network (open RAN, O-RAN or ORAN), a cloud radio access network (cloud radio access network, CRAN), or a wireless fidelity (wireless fidelity, WiFi) system. RAN 100 may also be a communication system that integrates two or more of the above systems.

[0067] RAN node 110, sometimes also referred to as access network equipment, RAN entity or access node, etc., constitutes a part of the communication system to help terminals achieve wireless access. In the subsequent description of this application, "access network equipment" is used for description unless otherwise specified. Multiple RAN nodes 110 in the communication system 10 can be nodes of the same type or nodes of different types. In some scenarios, the roles of RAN node 110 and terminal 120 are relative, for example, Figure 1 The network element 120i may be a helicopter or a drone, which may be configured as a mobile base station. For the terminals 120j that access the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal. The RAN node 110 and the terminal 120 are sometimes referred to as communication devices, for example Figure 1 The network elements 110a and 110b may be understood as communication devices having base station functions, and the network elements 120a-120j may be understood as communication devices having terminal functions.

[0068] In one possible scenario, a RAN node may be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. A RAN node may be a macro base station (e.g. Figure 1 110a in), micro base stations or indoor stations (such as Figure 1110b in the figure), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node may also be a server, a wearable device, a vehicle or an on-board device, etc. For example, the access network device in the vehicle to everything (V2X) technology may be a road side unit (RSU). All or part of the functions of the RAN node in the embodiment of the present application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform). The RAN node in the embodiment of the present application may also be a logical node, a logical module or software that can implement all or part of the functions of the RAN node.

[0069] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, and different RAN nodes respectively implement part of the functions of the base station. For example, the RAN node can be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH).

[0070] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, CU, CU-CP, CU-UP, DU and RU are described as examples in this application. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0071] The terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality (VR), augmented reality (AR), industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal may be a mobile phone, a head-mounted display device, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. The embodiments of the present application do not limit the device form of the terminal.

[0072] In downlink transmission, the access network device can send downlink data to the terminal. The terminal can determine whether the downlink data is received correctly. If the downlink data is received correctly, the hybrid automatic repeat request (HARQ) sent by the terminal to the access network device is fed back as a positive acknowledgment (ACK); if the downlink data is received incorrectly, the HARQ feedback sent by the terminal to the access network device is a negative acknowledgment (NACK). When the access network device receives NACK, it retransmits the downlink data to the terminal.

[0073] In a mobile cellular network, when a terminal moves from one cell to the coverage of another cell, the terminal needs to perform cell handover. Before handover, the terminal needs to measure the signals of the neighboring cells to determine when the terminal should switch and which cell to switch to. Measurements can be divided into intra-frequency measurement and inter-frequency measurement. Intra-frequency measurement means that the cell where the terminal is currently located (which can be called the serving cell) and the target cell to be measured are on the same carrier frequency. Inter-frequency measurement means that the carrier frequency of the cell where the terminal is currently located and the target cell to be measured are different. During intra-frequency measurement, the terminal can perform measurements through the reference signal inserted during data transmission without affecting the reception and transmission of data. For inter-frequency measurement, a simple way is to install two RF receivers in the terminal, corresponding to the frequency of the cell and the frequency of the target cell respectively, but this may cause mutual interference between different frequencies and increase the cost of the terminal. Therefore, the measurement gap (MG) solution was proposed in 3GPP. MG is a reserved period of time. During the reserved period, except for some important signals (for example, signals related to the access process), the terminal will not transmit other signals or data. The terminal tunes the receiver to the frequency of the target cell to perform heterodyne measurements. When the MG time ends, the terminal tunes the receiver back to the frequency of the current cell. The duration during which the terminal suspends the service of the serving cell to measure the heterodyne target cell is called MG.

[0074] In some scenarios, the time of retransmitting downlink data may overlap or conflict with the time of MG. Since MG has a higher priority, the terminal will prioritize inter-frequency measurement and will not be able to guarantee the reception of retransmitted downlink data, affecting the reliability of terminal services. For example, taking the extended reality (XR) service as an example: Figure 2 As shown in the figure, the period of XR service arriving at the terminal is 16.67 milliseconds (ms), that is, the terminal receives an XR service once every 16.67ms. In one period, the packet delay budget (PDB) of the XR service is 10ms, that is, in a period of 16.67ms, the terminal completes the reception of the XR service in 10ms. If the MG period is 40ms, and the measurement gap length (MGL) of an MG is 6ms, then there is an MG every 40ms, and the duration of an MG is 6ms. Figure 2As shown, the XR service of the fourth cycle and the XR service of the sixth cycle overlap with the MG time. According to the current design, during the overlapping time, the terminal preferentially performs inter-frequency measurement, which affects the terminal's reception of the retransmitted XR service in the fourth cycle and the sixth cycle, thereby affecting the reliability of the XR service.

[0075] In view of the above, the embodiment of the present application provides an inter-frequency measurement method, the principle of which is: when the terminal needs to receive retransmitted downlink data, the inter-frequency measurement is skipped, and the terminal preferentially receives the retransmitted downlink data, thereby ensuring the reception of the retransmitted downlink data and ensuring the reliability of the terminal service. It can be understood that the solution of the embodiment of the present application is not limited to the scenario of low-latency services such as XR, and the solution of the embodiment of the present application can also be applied to high-latency services.

[0076] For ease of understanding and explanation, the following describes the method of the embodiment of the present application by taking the interaction between the terminal and the access network device as an example, but this should not constitute any limitation on the execution subject of the method of the embodiment of the present application. For example, the method executed by the terminal can also be executed by a module of the terminal (such as a circuit, a chip, or a chip system, etc.), and can also be implemented by a logical node, a logical module, or software that can realize all or part of the terminal function. The method executed by the access network device can also be executed by a module of the access network device (such as a circuit, a chip, or a chip system, etc.), and can also be implemented by a logical node, a logical module, or software that can realize all or part of the access network device function.

[0077] Figure 3 The diagram of the interaction of the inter-frequency measurement method provided by the embodiment of the present application is a schematic diagram, in which the terminal skips the inter-frequency measurement within the first duration of the MG after sending the first NAKC. Figure 3 As shown, including:

[0078] Step 300: The access network device sends first configuration information to the terminal, and the terminal receives the first configuration information from the access network device, where the first configuration information is used to configure the MG.

[0079] For example, the first configuration information includes at least one of the following parameters: measurement gap repetition period (MGRP), gap offset (gapOffset), or measurement gap length (MGL), etc. Among them, MGRP refers to the period of MG configured by the first configuration information. For example, the period of MG can be 20ms, 40ms, 80ms, or 160ms. Take a frame occupying 10ms, a frame including 10 subframes, and a subframe occupying 1ms as an example: if the period of MG is 40ms, there is an MG every 4 frames. In the description of this application, "frame" can also be referred to as "system frame", and the descriptions of "frame" and "system frame" are not distinguished, and the two can be replaced with each other. gapOffset is used to determine the starting subframe of the first MG. For example, the starting subframe of the first MG satisfies:

[0080] SFN mod T = FLOOR (gapOffset / 10); T = MGRP / 10; starting subframe = gapOffset mod 10;

[0081] Wherein, SFN represents the system frame number (SFN). In the above conditions, SFN specifically represents the SFN of the frame where the first MG is located. The starting subframe represents the starting subframe occupied by the first MG in the frame corresponding to the above SFN. FLOOR represents rounding down. mod represents modulo operation.

[0082] Exemplarily, the value range of gapOffset may be 0 to MGRP-1. For example, if the value of MGRP is 20ms, the value range of gapOffset is 0 to 19. MGL refers to the duration of the MG configured by the first configuration information. MGL may be in milliseconds, for example, the value of MGL may be 1.5ms, 3ms, 3.5ms, 4ms, 5.5ms, 6ms, etc.

[0083] For example, if Figure 4 As shown, the parameters configured in the first configuration information are as follows: gapOffset = 24, MGRP = 40ms, MGL = 4ms. According to the above description, the SFN of the frame where the first MG is located satisfies: SFN mod T = FLOOR (gapOffset / 10); T = MGRP / 10. It can be determined that the SFN of the frame where the first MG is located = 22. Figure 4In the frame, one frame occupies 10ms, one frame includes 10 subframes, and one subframe occupies 1ms. In the frame corresponding to SFN=22, the starting subframe of the first MG satisfies: starting subframe=gapOffset mod 10. Substituting the parameter gapOffset=24, it can be determined that in the frame corresponding to SFN=22, the starting subframe of the first MG is equal to 4. The MGL configured by the first configuration information is 4ms, then in the frame corresponding to SFN=22, the first MG occupies 4 subframes, and the 4 subframes are subframes 4 to 7 respectively. The MGRP configured by the first configuration information is 40ms, and the second MG is separated from the first MG by 4 frames, then the SFN of the frame where the second MG is located is 26, and the second MG specifically occupies subframes 4 to subframe 7 of the frame corresponding to SFN=26. By analogy, the SFN of the frame where the third MG is located is 30, etc., which will not be listed and explained in detail.

[0084] In one implementation, the access network device may configure the MG parameters for the terminal through radio resource control (RRC) signaling. For example, the access network device may send RRC signaling to the terminal, and the terminal receives the RRC signaling from the access network device, where the RRC signaling includes the first configuration information, etc. Or,

[0085] In another implementation, the parameters of the MG are predefined. For example, the parameters of the MG are preset or specified by the protocol. The terminal can determine the time domain position of the MG based on the predefined MG parameters. In this implementation, step 300 does not need to be performed. In the embodiment of the present application, step 300 can be performed, or step 300 can be not performed, that is, step 300 is optional.

[0086] Step 310: the terminal sends a first NACK to the access network device, and the access network device receives the first NACK from the terminal, where the first NACK is used to indicate a reception error of the first downlink data.

[0087] In one implementation, the access network device sends first downlink data to the terminal, and the terminal receives the first downlink data from the access network device. The terminal determines whether the reception of the first downlink data is erroneous. For example, the reception error of the first downlink data includes: a decoding error of the first downlink data, and / or a demodulation error of the first downlink data, etc. It can be understood that the reception error of the first downlink data can be replaced by: a failure to receive the first downlink data, etc. When the reception of the first downlink data is erroneous, the terminal can send a first NACK to the access network device. When the access network device receives the first NACK from the terminal, the access network device can retransmit the first downlink data to the terminal.

[0088] Step 330: The terminal skips inter-frequency measurement within the first duration of the MG after sending the first NACK.

[0089] In the description of the present application, "skipping heterofrequency measurement" can be replaced by: not performing heterofrequency measurement. In one implementation, the time point when or after the terminal sends the first NACK can be used as the starting time point. Starting from the starting time point, the terminal skips heterofrequency measurement within the first time period thereafter. That is, within the first time period after the starting time point of the terminal, the terminal does not perform heterofrequency measurement. For example, one or more MGs may exist within the first time period after the terminal sends the first NACK. In an embodiment of the present application, the terminal may deactivate or cancel the one or more MGs. The terminal no longer performs heterofrequency measurement in the one or more MGs. It can be understood that the first time period T may include some MGs. At this time, some MGs included in the first time period are canceled or deactivated, and heterofrequency measurement can be performed normally for the remaining MGs. Alternatively, the remaining MGs are canceled or deactivated, that is, the terminal no longer performs heterofrequency measurement for the remaining MGs.

[0090] In one implementation, the access network device may retransmit the first downlink data to the terminal within a first time period after receiving the first NACK. The terminal receives the retransmitted first downlink data within a first time period after sending the first NACK.

[0091] In an embodiment of the present application, the first duration may be predefined or configured by the access network device. For example, the value of the first duration may be predefined, or the access network device may configure the value of the first duration for the terminal through high-level parameters. The value of the first duration may be an absolute time. For example, the value of the first duration may be 20ms, 40ms, or 80ms, etc. Alternatively, the value of the first duration may be in frames. For example, the value of the first duration may be 2 frames, 4 frames, or 8 frames, etc. In one implementation, the value of the first duration may be an integer multiple of the MG period. For example, when the period of the MG is 40ms, the value of the first duration may be 80ms. Alternatively, the first duration is associated with the first timer and the second timer described below. For the specific process, see the description below.

[0092] Through the above design, for the downlink communication scenario, when the first downlink data is received incorrectly, the terminal sends a first NACK to the access network device. In the subsequent period of time (the period of time is the first time length), the first downlink data is preferably retransmitted. For example, the access network device retransmits the first downlink data to the terminal within the first time length. The terminal can receive the retransmitted first downlink data within the first time length. The terminal no longer performs heterodyne measurement within the MG of the first time length, thereby ensuring the reception of the retransmitted downlink data and ensuring the reliability of the terminal service.

[0093] In order to reduce the power consumption of a terminal when monitoring a physical downlink control channel (PDCCH), a discontinuous reception (DRX) mechanism is proposed in 3GPP.

[0094] 1. Basic working principle of DRX mechanism

[0095] In the DRX mechanism, a DRX cycle can be configured for the terminal. Figure 5 As shown in FIG. 1 , the DRX cycle consists of two time periods, "OnDuration" and "Opportunity for DRX". "On Duration" can be called a duration, and "Opportunity for DRX" can be called a DRX opportunity. In the description of this application, "duration" can be replaced by "activation period", and "DRX opportunity" can be replaced by "dormant period". During the "On Duration", the terminal monitors the PDCCH. During the "Opportunity for DRX", the terminal no longer monitors the PDCCH to reduce power consumption.

[0096] It is understandable that within the "Opportunity for DRX", the terminal does not monitor the PDCCH, but the terminal can perform data transmission on other physical channels. For example, the terminal can receive downlink data on the physical downlink shared channel (PDSCH). For example, in the scenario of semi-persistent scheduling (SPS), the terminal can receive downlink data through the PDSCH on a periodically configured downlink subframe. And / or, the terminal can send HARQ feedback on the physical uplink control channel (PUCCH).

[0097] 2. Discontinuous Reception-Hybrid Automatic Repeat Request-Round Trip Time-Timer (drx-HARQ-RTT-Timer)

[0098] The access network device can send downlink data to the terminal. For the terminal side, if the downlink data is received incorrectly, the terminal can send NACK feedback to the access network device. When receiving the NACK feedback, the access network device can retransmit the downlink data to the terminal. There is a round-trip delay (RTT) between the terminal sending NACK feedback and receiving the retransmitted downlink data. During the RTT time, the terminal will not receive the retransmitted downlink data. Therefore, during the RTT time, the terminal may not monitor the PDCCH. In the DRX scenario, a timer drx-HARQ-RTT-Timer can be introduced, and the duration of the timer can be considered as the RTT time. In an embodiment of the present application, when the terminal sends a NACK to the access network device, the timer drx-HARQ-RTT-Timer can be started. During the operation of the timer drx-HARQ-RTT-Timer, the terminal no longer monitors the PDCCH. The duration of the timer drx-HARQ-RTT-Timer can be considered as the minimum time that the terminal needs to wait from sending NACK to receiving the retransmitted downlink data. The timer drx-HARQ-RTT-Timer is mainly used for downlink data transmission. The timer drx-HARQ-RTT-Timer is also called drx-HARQ-RTT-Timer downlink (DL).

[0099] 3. Discontinuous Reception-Retransmission-Timer (drx-RetransmissionTimer)

[0100] When the timer drx-HARQ-RTT-Timer times out, the terminal starts the timer drx-RetransmissionTimer. During the operation of the timer drx-RetransmissionTimer, the terminal monitors the PDCCH. The duration of the timer drx-RetransmissionTimer can be considered as the maximum time the terminal waits for retransmission. During the operation of the timer drx-RetransmissionTimer, the PDCCH monitored by the terminal can be the PDCCH used to schedule downlink data retransmission. For example, the PDCCH carries downlink control information, which is used to schedule downlink data retransmission of the terminal. The unit of the duration of the timer drx-HARQ-RTT-Timer and the timer drx-RetransmissionTimer can be a subframe. The timer drx-RetransmissionTimer is also called drx-RetransmissionTimer DL.

[0101] In one implementation, Figure 6As shown, during the "On Duration" period of the DRX cycle, the terminal monitors the PDCCH used to schedule the initial transmission of downlink data. The terminal starts the timer discontinuous reception-inactivity timer (drx-InactivityTimer). During the operation of the timer drx-InactivityTimer, the terminal monitors the PDCCH until the timer times out. In the subsequent description of this application, the timer drx-InactivityTimer is not involved and will not be described in detail. The terminal receives the initially transmitted downlink data according to the scheduling of the monitored PDCCH. If the downlink data is received incorrectly, the terminal sends a NACK to the access network device. When the terminal sends a NACK to the access network device, the timer drx-HARQ-RTT-Timer is started. During the operation of the timer, the terminal does not monitor the PDCCH. When the timer drx-HARQ-RTT-Timer times out, the terminal starts the timer drx-RetransmissionTimer. During the operation of the timer, the terminal monitors the PDCCH.

[0102] Figure 3 The method in the process can be applied to DRX scenarios. Figure 3 The method in the process also includes: when the terminal sends the first NACK to the access network device, the terminal starts the first timer; when the first timer times out, the terminal starts the second timer. The operation period of the first timer is used for skipping PDCCH monitoring. For example, during the operation period of the first timer, the terminal no longer monitors PDCCH. The first timer may be a timer drx-HARQ-RTT-Timer. The operation period of the second timer is used for monitoring PDCCH. For example, during the operation period of the second timer, the terminal monitors PDCCH. The second timer may be a timer drx-RetransmissionTimer. When the access network device receives the first NACK from the terminal, the access network device starts the first timer; when the first timer times out, the access network device starts the second timer. During the operation period of the first timer, the access network device does not send downlink control information to the terminal on PDCCH. During the operation period of the second timer, downlink control information is sent to the terminal on PDCCH, and the downlink control information is used to schedule the retransmission of the first downlink data.

[0103] In one implementation, the first duration is equal to the sum of the durations of the first timer and the second timer. For example, the terminal skips the inter-frequency measurement in the MG during the operation of the first timer and the second timer. For example, the terminal may receive first configuration information from the access network device, and determine the configured MG according to the first configuration information. If the first downlink data is received incorrectly, the terminal sends a first NACK to the access network device. Figure 7As shown, in the DRX scenario, when the terminal sends the first NACK to the access network device, the terminal starts the first timer; when the first timer times out, the terminal starts the second timer. The first duration is equal to the sum of the durations of the first timer and the second timer. The terminal no longer performs inter-frequency measurement within the MG of the first duration. When the access network device receives the first NACK from the terminal, it starts the first timer. When the first timer times out, the access network device starts the second timer. Within the first duration during which the first timer and the second timer are running, the access network device may retransmit the first downlink data to the terminal. For example, during the operation of the first timer, the access network device may not retransmit the first downlink data to the terminal. During the operation of the second timer, the access network device may retransmit the first downlink data to the terminal. Specifically, the access network device may send control information for scheduling the retransmission of the first downlink data to the terminal on the PDCCH. The terminal receives the retransmitted first downlink data according to the scheduling of the control information. For the MG after the first duration, the terminal may perform inter-frequency measurement normally. For example, the terminal may adjust the receiver to the frequency point of the target cell to be measured. The terminal receives a reference signal of the target cell, and determines a measurement result of the target cell according to the reference signal.

[0104] In another implementation, the first duration is less than the sum of the durations of the first timer and the second timer. For example, the specific value of the first duration depends on the time when the terminal sends the first ACK. For example, Figure 8 As shown, in the DRX scenario, when the terminal sends the first NACK to the access network device, the terminal starts the first timer. When the first timer times out, the terminal starts the second timer. During the operation of the second timer, the access network device may send the retransmitted first downlink data to the terminal. The terminal may decode the retransmitted first downlink data, and when the retransmitted first downlink data is received correctly, the terminal may send the first ACK to the access network device. For the MG after the first ACK, the terminal may perform hetero-frequency measurement normally. In this implementation, the time interval from the start of the first timer by the terminal to the sending of the first ACK by the terminal may be defined as the first duration. Since the terminal sends the first ACK to the access network device during the operation of the second timer, the first duration is less than the sum of the durations of the first timer and the second timer.

[0105] Through the above design, during the operation of the second timer, if the terminal receives the correctly retransmitted first downlink data, the terminal will resume the MG's inter-frequency measurement after sending the first ACK to the access network device, without waiting until the second timer ends to resume the MG's inter-frequency measurement. While ensuring the terminal retransmits data, the waiting time for the terminal's inter-frequency measurement is reduced.

[0106] exist Figure 3In the method of the process, there is a timer, which is called the third timer. For example, the third timer can be called the first measurement gap-timer (measurementgap-timer). Since the third timer is mainly used for downlink data transmission, the third timer can be called the second measurement gap-timer downlink (measurementgap-timer DL). When applied to the DRX scenario, the third timer can also be called the first drx-measurementgap-timer. When the terminal sends the first NACK to the access network device, the third timer can be started. The duration of the third timer can be predefined, or configured by the access network device.

[0107] In one implementation, the first duration is equal to the duration of the third timer. That is, the terminal skips the inter-frequency measurement in the MG during the running period of the third timer. For example, Fig. 9 As shown, the terminal receives the first downlink data incorrectly, the terminal sends the first NACK to the access network device, and the terminal starts the third timer. During the operation of the third timer, the terminal skips the MG and no longer performs inter-frequency measurement. When the third timer times out, the terminal can perform inter-frequency measurement normally according to the MG. When the access network device receives the first NACK of the terminal, the access network device can start the third timer. During the operation of the third timer, the access network device can send and receive data normally. For example, the access network device can retransmit the first downlink data to the terminal. Further, the solution of this embodiment can be applied to the DRX scenario. In the DRX scenario, when the terminal sends the first NACK to the access network device, the terminal starts the first timer. When the first timer times out, the terminal starts the second timer. Similarly, when the access network device receives the first NACK from the terminal, the access network device starts the first timer. When the first timer times out, the access network device starts the second timer. In the DRX scenario, when the terminal sends the first NACK, the terminal can start the first timer and the third timer at the same time. When the access network device receives the first NACK, the access network device may start the first timer and the third timer at the same time.

[0108] In another implementation, the first duration is less than the duration of the third timer. For example, during the operation of the third timer, if the terminal receives the retransmitted first downlink data correctly, the terminal sends a first ACK to the access network device. After the terminal sends the first ACK to the access network device, the terminal can perform inter-frequency measurement normally without waiting for the third timer to time out.

[0109] Through the above design, during the operation of the third timer, if the terminal receives the correctly retransmitted first downlink data, the terminal will resume the MG's inter-frequency measurement after sending the first ACK to the access network device, without waiting until the third timer times out to resume the MG's inter-frequency measurement. This reduces the waiting time for the terminal's inter-frequency measurement while ensuring the terminal's data retransmission.

[0110] Fig.10 The diagram of the interaction of the inter-frequency measurement method provided by the embodiment of the present application is a schematic diagram, in which the terminal skips the inter-frequency measurement within the MG of the second duration of the fifth timer. Fig.10 As shown, including:

[0111] Step 1000: The access network device sends second configuration information to the terminal, and the terminal receives the second configuration information from the access network device, where the second configuration information is used to configure the MG.

[0112] In one implementation, the access network device may send an RRC signaling to the terminal, where the RRC signaling includes the second configuration information. The parameters included in the second configuration information may be found in Figure 3 Alternatively, the MG is predefined, and the terminal can determine the MG according to the predefined configuration. In this case, step 1000 may not be performed. Step 1000 is optional.

[0113] Step 1100: The terminal sends a second NACK to the access network device and starts a fourth timer.

[0114] Step 1200: When the fourth timer times out, the terminal starts the fifth timer.

[0115] In one implementation, the access network device sends the second downlink data to the terminal, and the terminal receives the second downlink data from the access network device. When the second downlink data is received incorrectly, the terminal sends a second NACK to the access network device, and the second NACK is used to indicate the reception error of the second downlink data. The terminal starts a fourth timer, and the fourth timer is used to skip PDCCH monitoring during its operation. The fourth timer may be a drx-HARQ-RTT-Timer. When the fourth timer times out, the terminal starts a fifth timer, and the fifth timer is used to monitor PDCCH during its operation. The fifth timer may be a drx-RetransmissionTimer. For the access network device: when the access network device receives the second NACK, the access network device may start the fourth timer. During the operation of the fourth timer, the access network device does not send downlink control information to the access network device on the PDCCH. When the fourth timer times out, the access network device starts the fifth timer. During the operation of the fifth timer, the access network device may send downlink control information to the terminal on the PDCCH, and the downlink control information is used to schedule the terminal to receive the retransmitted first downlink data.

[0116] Step 1300: within the second duration of the MG after the fifth timer is started, the terminal skips the inter-frequency measurement.

[0117] The second duration may be predefined, or configured by the access network device, or the second duration is associated with the duration of the fifth timer, etc. The second duration may be an absolute time, for example, the unit of the second duration may be milliseconds. Or, the second duration may be in frames, etc. The second duration may include one or more MGs. The terminal may cancel or deactivate the one or more MGs, and the terminal skips inter-frequency measurement on the one or more MGs, that is, the terminal no longer performs inter-frequency measurement on the one or more MGs. It is understandable that the second duration may include some MGs, and the terminal may cancel or deactivate the part of MGs. For the remaining MGs of the part of MGs, the terminal may perform inter-frequency measurement normally, or the terminal may cancel or deactivate the remaining MGs, etc. In one implementation, the access network device may send control information to the terminal on the PDCCH within the second duration after starting the fifth timer, and the control information is used to schedule the retransmission of the second downlink data. The terminal may receive the control information on the PDCCH within the second duration after starting the fifth timer, and the terminal receives the retransmitted second downlink data according to the scheduling of the control information.

[0118] In one implementation, the second duration is equal to the duration of the fifth timer. For example, the terminal receives second configuration information from the access network device, and the terminal determines the MG according to the second configuration information. The terminal receives second downlink data from the access network device. Fig.11 As shown, when the reception error of the second downlink data occurs, the terminal sends a second NACK to the access network device. The terminal starts the fourth timer. When the fourth timer times out, the terminal starts the fifth timer. During the operation of the fifth timer, the corresponding MG skips the inter-frequency measurement, that is, cancels or deactivates the corresponding MG during the operation of the fifth timer. Fig.11 In the example, during the operation of the fifth timer, some MGs are included, the terminal cancels the some MGs, and the terminal no longer performs inter-frequency measurement on the some MGs. For the remaining MGs in the MGs except some MGs, the terminal performs inter-frequency measurement normally.

[0119] In another implementation, the second duration is less than the duration of the fifth timer. For example, during the operation of the fifth timer, when the terminal receives the second downlink data from the retransmission and the reception of the retransmitted second downlink data is correct, the terminal can send a second ACK to the access network device. After the terminal sends the second ACK to the access network device, the terminal can perform inter-frequency measurement normally according to the MG without waiting for the fifth timer to time out. In other words, the second duration is equal to the time interval from starting the fifth timer to the terminal sending the second ACK.

[0120] Through the above design, during the operation of the fifth timer, when the terminal receives the retransmitted second downlink data, if the retransmitted second downlink data is received correctly, the terminal sends a second ACK to the access network device, and then the terminal can perform inter-frequency measurement normally according to the MG without waiting for the fifth timer to time out before performing inter-frequency measurement, thereby reducing the time the terminal waits for inter-frequency measurement while ensuring the terminal retransmits data. Or,

[0121] exist Fig.10 In the method of the process, there is a sixth timer, and the duration of the sixth timer is predefined or configured by the access network device. The sixth timer may be referred to as the second drx-measurementgap-timer, or the second drx-measurementgap-timer DL. When the terminal starts the fifth timer, it starts the sixth timer. Or it can be described as: when the fourth timer times out, the terminal starts the fifth timer and the sixth timer at the same time. There is no restriction on the duration relationship between the fifth timer and the sixth timer. For example, the duration of the fifth timer is equal to that of the sixth timer, or the duration of the fifth timer is less than that of the sixth timer, or the duration of the fifth timer is greater than that of the sixth timer, etc.

[0122] In one implementation, the second duration is equal to the duration of the sixth timer. Fig.12 As shown, when the reception error of the second downlink data occurs, the terminal sends a second NACK to the access network device. When the terminal sends the second NACK to the access network device, the terminal starts the fourth timer. When the fourth timer times out, the terminal starts the fifth timer and the sixth timer at the same time. On the MG during the operation of the sixth timer, the terminal cancels or deactivates the corresponding MG and skips the inter-frequency measurement.

[0123] In the downlink communication scenario, when the reception error of the second downlink data occurs, the terminal sends a second NACK to the access network device. The terminal starts the fourth timer. During the operation of the fourth timer, the terminal does not monitor the PDCCH. When the fourth timer times out, the terminal starts the fifth timer and the sixth timer. During the operation of the sixth timer, the terminal skips the MG and does not perform inter-frequency measurement.

[0124] In another implementation, the second duration is less than the duration of the sixth timer. For example, the terminal receives the retransmitted second downlink data during the operation of the sixth timer. The retransmitted second downlink data is received correctly, and the terminal sends a second ACK to the access network device. After the terminal sends the second ACK to the access network device, the terminal can perform heterofrequency measurement according to the MG. In other words, the terminal does not have to wait until the sixth timer times out before performing heterofrequency measurement. If the terminal sends the second ACK to the access network device during the operation of the sixth timer, the terminal can perform heterofrequency measurement after sending the second ACK. The second duration is equal to the time interval from starting the sixth timer to the terminal sending the second ACK.

[0125] Through the above design, in the scenario of downlink communication, the terminal does not have to wait until the sixth timer times out before performing inter-frequency measurement. During the operation of the sixth timer, if the terminal sends a second ACK to the access network device, the terminal can perform inter-frequency measurement after the terminal sends the second ACK. The terminal preferentially receives the retransmitted downlink data, while ensuring the transmission of the retransmitted data, and further reduces the waiting time for the terminal inter-frequency measurement.

[0126] It is understandable that in the embodiments of the present application:

[0127] 1. The duration of a timer refers to the time interval from when the timer is started to when the timer times out. The duration of a timer can be equal to the running duration of the timer. For example, the duration of a timer is 10ms. In a normal scenario, if the timer runs for 10ms from the time it is started, the timer is considered to have timed out. The duration of the timer and the running duration of the timer are both 10ms. Alternatively, in some special scenarios, during the running of the timer, the timer is affected by certain factors and is forced to stop running. At this time, the running duration of the timer is less than the duration of the timer. For example, the duration of the timer is 10ms. 5ms after the timer is started, the timer is forced to stop running. At this time, the running duration of the timer is 5ms. The running duration of the timer, 5ms, is not equal to the duration of the timer, 10ms.

[0128] 2. In Figure 3 and Fig.10 The process may include fewer steps or more steps than the flowchart or text description.

[0129] 3. In the embodiment of the present application, "(such as a terminal) receives information from (such as an access network device)" can be understood as the source of the information is the access network device, and the destination is the terminal, which may include the terminal directly or indirectly receiving information from the access network device. The information may be processed as necessary between the source and destination of the information, such as format changes, but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly and will not be repeated here.

[0130] In the embodiments provided by the present application, the methods provided by the embodiments of the present application are introduced from the perspective of the interaction between the access network device and the terminal. In order to implement the functions in the methods provided by the embodiments of the present application, the access network device or the terminal may include a hardware structure and / or a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a function of the above functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the design constraints of the specific application of the technical solution.

[0131] Fig.13 and Fig.14 The following is a schematic diagram of the structure of possible devices provided in the embodiments of the present application. These communication devices can implement the functions of the access network device or terminal in the above method embodiments. Therefore, the beneficial effects possessed by the above method embodiments may be achieved.

[0132] like Fig.13 As shown, the communication device 1300 includes a processing unit 1310 and an interface unit 1320 .

[0133] Exemplarily, the processing unit 1310 may also be referred to as a processor, a processing board, a processing module, a processing device, etc. The interface unit 1320 may also be referred to as a transceiver, a transceiver, a transceiver module, a transceiver device, a communication unit, etc. Further, the interface unit 1320 may include at least one of a sending unit or a receiving unit. The sending unit and the receiving unit may be integrated together, or may be two independent units, etc.

[0134] In one design, communication device 1300 is used to implement Figure 3 Functions of the middle terminal or access network equipment:

[0135] For example, when the communication device 1300 is used to implement Figure 3When the function of the terminal is: the interface unit 1320 is used to receive the first configuration information from the access network device, the first configuration information is used to configure the measurement gap MG; the interface unit 1320 is also used to send a first negative acknowledgment NACK to the access network device, the first NACK is used to indicate a reception error of the first downlink data; the processing unit 1310 is used to skip the heterofrequency measurement within the MG of the first duration after sending the first NACK.

[0136] For example, when the communication device 1300 is used to implement Figure 3 The functions of the access network equipment are:

[0137] For example, the interface unit 1320 is used to send first configuration information to the terminal, and the first configuration information is used to configure the measurement gap MG; the interface unit 1320 is also used to receive a first negative acknowledgment NACK from the terminal, and the first NACK is used to indicate a reception error of the first downlink data; the processing unit 1310 is used to control the interface unit 1320 to retransmit the first downlink data to the terminal within a first time length after receiving the first NACK.

[0138] In one design, communication device 1300 is used to implement Fig.10 Functions of the mid-terminal or access network equipment:

[0139] For example, when the communication device 1300 is used to implement Fig.10 When the function of the terminal is in the middle: the interface unit 1320 is used to receive the second configuration information from the access network device, the second configuration information is used to configure the measurement gap MG; the interface unit 1320 is also used to send a second negative confirmation NACK to the access network device, and start a fourth timer, the fourth timer is used to skip the physical downlink control channel PDCCH monitoring during the operation period, and the second NACK is used to indicate a reception error of the second downlink data; the processing unit 1310 is used to start the fifth timer when the fourth timer times out, and the fifth timer is used to monitor the PDCCH during the operation period; the processing unit 1310 is also used to skip the inter-frequency measurement within the second duration of the MG after starting the fifth timer.

[0140] For example, when the communication device 1300 is used to implement Fig.10When the function of the access network device is in the middle: the interface unit 1320 is used to send the second configuration information to the terminal, the second configuration information is used to configure the measurement gap MG; the interface unit 1320 is also used to receive the second negative confirmation NACK from the terminal, and start the fourth timer, the fourth timer is used to skip the physical downlink control channel PDCCH monitoring during the operation period, and the second NACK is used to indicate a reception error of the second downlink data; the processing unit 1310 is used to start the fifth timer when the fourth timer times out, and the fifth timer is used to monitor the PDCCH during the operation period; the processing unit 1310 is used to control the interface unit to retransmit the second downlink data to the terminal within the second duration of starting the fifth timer.

[0141] For a more detailed description of the processing unit 1310 and the interface unit 1320, reference may be made to the description in the above method embodiment, which will not be repeated here.

[0142] It is understandable that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in the embodiments of the present application may be integrated into a physical device (for example, a processor), or each functional unit may be a separate physical device, or two or more units may be integrated into one unit for implementation, and the above-mentioned integrated unit may be implemented in the form of hardware, or in the form of software functional modules, etc.

[0143] Fig.14 Another structural diagram of the communication device 1400 provided in an embodiment of the present application is shown. For example, Fig.14 The communication device 1400 shown may be Fig.13 A hardware circuit implementation of the communication device 1300 shown in FIG. Fig.14 Only the essential parts of the communication device are shown.

[0144] like Fig.14 As shown, the communication device 1400 includes a processor 1410 and an interface circuit 1420. The processor 1410 and the interface circuit 1420 are coupled to each other.

[0145] For example, the processor 1410 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor. The interface circuit 1420 may be a transceiver or an input-output circuit, etc.

[0146] Optionally, the communication device 1400 may further include a memory 1430 for storing instructions executed by the processor 1410 or storing input data required by the processor 1410 to execute instructions or storing data generated after the processor 1410 executes instructions. For example, instructions may also be referred to as computer programs, or computer program codes, etc.

[0147] For example, the memory 1430 may be a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium known in the art.

[0148] When the communication device 1400 is used to implement Figure 3 or Fig.10 When the method is used for a terminal or access network device in the middle, the processor 1410 is used to implement the function of the processing unit 1310, and the interface circuit 1420 is used to implement the function of the interface unit 1320.

[0149] In one design, the interface circuit 1420 is used to receive signals from other communication devices other than the communication device 1400 and transmit them to the processor 1410, or send signals from the processor 1410 to other communication devices other than the communication device. The processor 1410 implements the above through logic circuits or executes code instructions. Figure 3 or Fig.10 The function of the terminal or access network equipment.

[0150] The embodiment of the present application also provides a communication device, which includes a processor and a memory, the processor and the memory are coupled, and the processor is used to implement Figure 3 or Fig.10 For example, the processor may execute instructions in the memory so that the communication device implements one or more functions in the above method embodiments, such as Figure 3 or Fig.10 In one exemplary embodiment, the storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in Figure 3 or Fig.10 The processor and storage medium may also exist as discrete components. Figure 3 or Fig.10 The terminal or access network equipment in the system.

[0151] The present application also provides a communication device, which includes a processor, and the processor is used to implement Figure 3 or Fig.10 The function of the terminal or access network equipment.

[0152] The present application also provides a computer-readable storage medium, which stores instructions, which may also be referred to as computer programs, computer program codes, etc. The instructions are executed on a computer, so that the computer executes the method in the above embodiment. Figure 3 or Fig.10 The function of the terminal or access network equipment.

[0153] Optionally, the computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device or other programmable device. The computer program or instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instruction may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disc; it may also be a semiconductor medium, such as a solid-state hard disk. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both volatile and non-volatile types of storage media.

[0154] The present application also provides a computer program product, including a computer program or an instruction. When the computer program or the instruction is executed on a computer, the above Figure 3 or Fig.10 The method of the terminal or access network device is executed. For example, the computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on the computer, all or part of the embodiments of the present application are executed. Figure 3 or Fig.10 The process or function of a terminal or access network device.

[0155] It is understood that the method in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, it can be implemented in whole or in part in the form of a computer program product.

[0156] The present application also provides a chip, which includes a processor, the processor is coupled to a memory, and the processor is used to execute a computer program or instruction stored in the memory, so that the chip implements Figure 3 or Fig.10 For example, taking the chip realizing the function of the access network device as an example, the chip can receive information from other modules of the access network device (such as radio frequency or antenna, etc.), and the information can be sent by the terminal to the access network device. Alternatively, the chip can send information to other modules in the access network device (such as radio frequency or antenna, etc.), and the information can be sent by the access network device to the terminal, etc.

[0157] An embodiment of the present application also provides a communication system, including: a first communication device and a second communication device.

[0158] Among them, the first communication device can implement the above Figure 3 The second communication device can realize the function of the terminal in the above text. Figure 3 Alternatively, the first communication device may implement the above Fig.10 The second communication device can realize the functions of the terminal in the above text. Fig.10 For the specific structure of the first communication device or the second communication device, please refer to the above description, for example Fig.13 or Fig.14 The structure description in .

[0159] In the description of this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the associated objects before and after are in an "or" relationship; "including at least one of A, B or C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0160] The various numerical numbers and descriptions such as "first" and "second" involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic.

[0161] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A communication method, characterized in that: include: receiving first configuration information from an access network device, where the first configuration information is used to configure a measurement gap MG; Sending a first negative acknowledgement NACK to the access network device, where the first NACK is used to indicate a reception error of the first downlink data; In the MG of a first duration after sending the first NACK, the inter-frequency measurement is skipped.

2. The method according to claim 1, characterized in that The first duration is equal to the sum of the durations of the first timer and the second timer; wherein the operation period of the first timer is used for skipping physical downlink control channel PDCCH monitoring, and the operation period of the second timer is used for PDCCH monitoring.

3. The method according to claim 1, characterized in that The first duration is less than the sum of the durations of the first timer and the second timer; wherein the operation period of the first timer is used for skipping PDCCH monitoring, and the operation period of the second timer is used for monitoring PDCCH.

4. The method according to claim 2 or 3, characterized in that Also includes: When sending the first NACK to the access network device, starting the first timer; When the first timer times out, the second timer is started.

5. The method according to claim 1, characterized in that The first duration is equal to the duration of a third timer, and the duration of the third timer is predefined or configured by the access network device.

6. The method according to claim 1, characterized in that The first duration is smaller than a duration of a third timer, and the duration of the third timer is predefined or configured by the access network device.

7. The method according to claim 5 or 6, characterized in that Also includes: When sending the first NACK to the access network device, starting the third timer.

8. A communication method, characterized in that: include: receiving second configuration information from an access network device, where the second configuration information is used to configure a measurement gap MG; Sending a second negative acknowledgement NACK to the access network device, and starting a fourth timer, wherein the fourth timer is used to skip physical downlink control channel PDCCH monitoring during operation, and the second NACK is used to indicate a reception error of the second downlink data; When the fourth timer times out, starting a fifth timer, wherein the running period of the fifth timer is used for monitoring the PDCCH; In the MG of the second duration after the fifth timer is started, the inter-frequency measurement is skipped.

9. The method according to claim 8, characterized in that The second duration is equal to the duration of the fifth timer.

10. The method according to claim 8, characterized in that The second duration is shorter than the duration of the fifth timer.

11. The method according to claim 8, characterized in that The second duration is equal to the duration of a sixth timer, and the duration of the sixth timer is predefined or configured by the access network device.

12. The method according to claim 8, characterized in that The second duration is smaller than a duration of a sixth timer, and the duration of the sixth timer is predefined or configured by the access network device.

13. The method according to claim 11 or 12, characterized in that Also includes: When the fifth timer is started, the sixth timer is started.

14. A communication device, characterized in that: include An interface unit, configured to receive first configuration information from an access network device, wherein the first configuration information is used to configure a measurement gap MG; The interface unit is further used to send a first negative acknowledgement NACK to the access network device, where the first NACK is used to indicate a reception error of the first downlink data; The processing unit is configured to skip inter-frequency measurement within a first duration of the MG after sending the first NACK.

15. The device according to claim 14, characterized in that The first duration is equal to the sum of the durations of the first timer and the second timer; wherein the operation period of the first timer is used for skipping physical downlink control channel PDCCH monitoring, and the operation period of the second timer is used for PDCCH monitoring.

16. The device according to claim 14, characterized in that The first duration is less than the sum of the durations of the first timer and the second timer; wherein the operation period of the first timer is used for skipping PDCCH monitoring, and the operation period of the second timer is used for monitoring PDCCH.

17. The device according to claim 15 or 16, characterized in that The processing unit is further used for: When sending the first NACK to the access network device, starting the first timer; When the first timer times out, the second timer is started.

18. The device according to claim 14, characterized in that The first duration is equal to the duration of a third timer, and the duration of the third timer is predefined or configured by the access network device.

19. The device according to claim 14, characterized in that The first duration is smaller than a duration of a third timer, and the duration of the third timer is predefined or configured by the access network device.

20. The device according to claim 18 or 19, characterized in that The processing unit is further used for: When sending the first NACK to the access network device, starting the third timer.

21. A communication device, characterized in that: include: An interface unit, configured to receive second configuration information from an access network device, wherein the second configuration information is used to configure a measurement gap MG; The interface unit is further used to send a second negative confirmation NACK to the access network device and start a fourth timer, the fourth timer is used to skip physical downlink control channel PDCCH monitoring during operation, and the second NACK is used to indicate a reception error of the second downlink data; A processing unit, configured to start a fifth timer when the fourth timer times out, wherein the fifth timer is used for monitoring the PDCCH during its operation; The processing unit is further configured to skip inter-frequency measurement within a second duration of the MG after the fifth timer is started.

22. The device according to claim 21, characterized in that The second duration is equal to the duration of the fifth timer.

23. The device according to claim 21, characterized in that The second duration is shorter than the duration of the fifth timer.

24. The device according to claim 21, characterized in that The second duration is equal to the duration of a sixth timer, and the duration of the sixth timer is predefined or configured by the access network device.

25. The device according to claim 21, characterized in that The second duration is smaller than a duration of a sixth timer, and the duration of the sixth timer is predefined or configured by the access network device.

26. The device according to claim 24 or 25, characterized in that The processing unit is also used When the fifth timer is started, the sixth timer is started.

27. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and the instructions are executed on a computer to enable the computer to perform the method according to any one of claims 1 to 7, or the method according to any one of claims 8 to 13.

28. A computer program product, characterized in that The device comprises a computer program or an instruction. When the computer program or the instruction is executed by the device, the method according to any one of claims 1 to 7 is executed, or the method according to any one of claims 8 to 13 is executed.

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