A method and device for determining a tracking reference signal period

Abstract

The disclosed embodiment discloses a method and device for determining a tracking reference signal period, which can be applied to the field of communication technology, wherein the method performed by a network device includes: sending first indication information to a terminal device at a physical layer, wherein the first indication information is used to indicate a change period of a tracking reference signal TRS. Thus, the process of updating the TRS period not only does not affect network signaling, but also reduces the impact of updating the TRS period on the power consumption of the network device.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a method and device for determining a tracking reference signal period. Background Art

[0002] In a communication system, when receiving downlink data transmission, the terminal device needs to continuously track and compensate for the time deviation and frequency deviation according to the measured Tracking Reference Signa l (TRS) to ensure the accuracy of downlink data reception. In the relevant technology, the period of TRS usually includes 5 milliseconds (ms), 10ms, 20ms, 40ms and 80ms. For short-period TRS, if the TRS period is changed by changing the configuration period of the channel state information (CSI) reference signal (RS) of the network device, it will not only affect the load of network signaling, but also increase the power consumption of the network device. Summary of the invention

[0003] The embodiments of the present disclosure provide a method and device for determining a tracking reference signal period, which can be applied in the field of communication technology.

[0004] In a first aspect, an embodiment of the present disclosure provides a method for determining a tracking reference signal period, the method being performed by a network device, the method comprising:

[0005] First indication information is sent to a terminal device at a physical layer, wherein the first indication information is used to indicate a change period of a tracking reference signal TRS.

[0006] Optionally, the sending the first indication information to the terminal device includes:

[0007] sending the first indication information to the terminal device through a TRS available indication, wherein the terminal device is in an idle state or an inactive state; or,

[0008] The first indication information is sent to the terminal device via a downlink control indication DCI, wherein the terminal device is in a connected state.

[0009] Optionally, also include:

[0010] Determining a value of a first preset bit in the TRS available indication according to a change period size of the TRS;

[0011] or,

[0012] Determining a value of a first preset bit in the DCI according to a change period size of the TRS;

[0013] The value of the first preset bit is used to represent the changed TRS period size.

[0014] Optionally, also include:

[0015] Determining a value of a second preset bit in the TRS available indication according to a position of the TRS change period in the preset parameter pair;

[0016] or,

[0017] Determining a value of a second preset bit in the DCI according to a position of a change period of the TRS in a preset parameter pair;

[0018] The preset parameter pair includes two TRS periods of different sizes.

[0019] Optionally, also include:

[0020] Sending second indication information to the terminal device, wherein the second indication information is used to indicate the preset parameter pair.

[0021] Optionally, the sending the first indication information to the terminal device through a downlink control indication DCI includes:

[0022] When the service type of the terminal device changes, the first indication information is sent to the terminal device via DCI.

[0023] In a second aspect, an embodiment of the present disclosure provides another method for determining a tracking reference signal period, the method being executed by a terminal device, the method comprising:

[0024] First indication information sent by a network device is received at a physical layer, wherein the first indication information is used to indicate a change period of a tracking reference signal TRS.

[0025] Optionally, the receiving first indication information sent by the network device includes:

[0026] receiving the first indication information via a TRS available indication;

[0027] or,

[0028] The first indication information is received through a downlink control indication DCI.

[0029] Optionally, also include:

[0030] Determining a change period size of the TRS according to a value of a first preset bit in the TRS available indication;

[0031] or,

[0032] Determine the change period size of the TRS according to the value of the first preset bit in the DCI;

[0033] The value of the first preset bit is used to represent the changed TRS period size.

[0034] Optionally, also include:

[0035] Determining the position of the TRS change period in the preset parameter pair according to the value of the second preset bit in the TRS available indication;

[0036] or,

[0037] Determine, according to the value of the second preset bit in the DCI, the position of the change period of the TRS in the preset parameter pair;

[0038] The preset parameter pair includes two TRS periods of different sizes.

[0039] Optionally, also include:

[0040] Receive second indication information sent by the network device, wherein the second indication information is used to indicate the preset parameter pair.

[0041] In a third aspect, an embodiment of the present disclosure provides a communication device, which has the function of implementing some or all of the functions of the network device in the method described in the first aspect above. For example, the function of the communication device may have the functions of some or all of the embodiments in the present disclosure, or may have the function of implementing any one of the embodiments in the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0042] In a fourth aspect, an embodiment of the present disclosure provides another communication device, which has some or all of the functions of the terminal device in the method example described in the second aspect above, such as the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0043] In a fifth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in the first aspect is executed.

[0044] In a sixth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in the second aspect is executed.

[0045] In a seventh aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; when the computer program is executed by the processor, the communication device executes the method described in the first aspect above.

[0046] In an eighth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; when the computer program is executed by the processor, the communication device executes the method described in the second aspect above.

[0047] In a ninth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the first aspect above.

[0048] In a tenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the second aspect above.

[0049] In the eleventh aspect, an embodiment of the present disclosure provides a communication system, the system comprising the communication device described in the third aspect and the communication device described in the fourth aspect, or the system comprising the communication device described in the fifth aspect and the communication device described in the sixth aspect, or the system comprising the communication device described in the seventh aspect and the communication device described in the eighth aspect, or the system comprising the communication device described in the ninth aspect and the communication device described in the tenth aspect.

[0050] In a twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the method described in the above-mentioned first aspect is implemented.

[0051] In a thirteenth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing instructions used for the above-mentioned terminal device, and when the instructions are executed, the method described in the above-mentioned second aspect is implemented.

[0052] In a fourteenth aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect above.

[0053] In a fifteenth aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the second aspect above.

[0054] In a sixteenth aspect, the present disclosure provides a chip system, which includes at least one processor and an interface, and is used to support a network device to implement the functions involved in the first aspect, for example, to determine or process at least one of the data and information involved in the above method. In one possible design, the chip system also includes a memory, and the memory is used to store computer programs and data necessary for the network device. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0055] In a seventeenth aspect, the present disclosure provides a chip system, which includes at least one processor and an interface, and is used to support a terminal device to implement the functions involved in the second aspect, for example, determining or processing at least one of the data and information involved in the above method. In a possible design, the chip system also includes a memory, and the memory is used to store computer programs and data necessary for the terminal device. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

[0056] In an eighteenth aspect, the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect.

[0057] In a nineteenth aspect, the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the method described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background technology, the drawings required for use in the embodiments of the present disclosure or the background technology will be described below.

[0059] Figure 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0060] Figure 2 It is a flowchart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure;

[0061] Figure 3 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0062] Figure 4 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0063] Figure 5 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0064] Figure 6 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0065] Figure 7 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0066] Figure 8 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0067] Fig. 9 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0068] Fig.10 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0069] Fig.11 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0070] Fig.12 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0071] Fig.13 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0072] Fig.14 is a flow chart of a method for determining a tracking reference signal period provided by another embodiment of the present disclosure;

[0073] Fig.15 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

[0074] Fig.16 is a schematic structural diagram of a communication device according to another embodiment of the present disclosure;

[0075] Fig.17 It is a schematic diagram of the structure of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0076] In order to better understand a method for determining a tracking reference signal period disclosed in an embodiment of the present disclosure, a communication system to which the embodiment of the present disclosure is applicable is first described below.

[0077] See also Figure 1 , Figure 1 The following is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. The communication system may include but is not limited to a network device, a terminal device, Figure 1 The number and form of devices shown are for example only and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more network devices and two or more terminal devices may be included. Figure 1 The communication system shown includes a network device 11 and a terminal device 12 as an example.

[0078] It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as long term evolution (LTE) system, fifth generation (5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems.

[0079] The network device 11 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals. For example, the network device 11 may be an evolved NodeB (eNB), a transmission point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the network device. The network device provided in the embodiment of the present disclosure may be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit. The CU-DU structure may be used to split the protocol layer of the network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0080] The terminal device 12 in the embodiment of the present disclosure is an entity for receiving or transmitting signals on the user side, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal device (MT), etc. The terminal device may be a car with communication function, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industr ia l control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smart home), etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.

[0081] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. A person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0082] The method and device for determining the tracking reference signal period provided by the present disclosure are described in detail below in conjunction with the accompanying drawings.

[0083] See also Figure 2 , Figure 2 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a network device. Figure 2 As shown, the method may include but is not limited to the following steps:

[0084] Step 21: Send first indication information to the terminal device at the physical layer, where the first indication information is used to indicate a change period of a tracking reference signal TRS.

[0085] In the present disclosure, it is considered that the period of CSIRS configuration performed using radio resource control (RRC) messages is longer than that of the short-period TRS. In order to avoid the increase in signaling load caused by changing the configuration period of the RRC message to indicate the change period of TRS to the terminal device, physical layer signaling is used to indicate the change period of TRS to the terminal device.

[0086] Optionally, the network device may add first indication information to a TRS availability indication at the physical layer to indicate a change period of the TRS.

[0087] Alternatively, the network device may further add first indication information to downlink control information (DCI) of the physical layer to indicate a change period of the TRS.

[0088] It can be understood that in the present disclosure, there is no need to change the configuration period of the high-level RRC message. The TRS period can be updated by simply adding the first indication information for indicating the change period of TRS in the physical layer signaling, thereby reducing the power consumption of the network device.

[0089] By implementing the embodiments of the present disclosure, the network device indicates the change period of the tracking reference signal TRS to the terminal device at the physical layer, so that the process of updating the TRS period not only does not affect network signaling, but also reduces the impact of updating the TRS period on the power consumption of the network device.

[0090] See also Figure 3 , Figure 3 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a network device. Figure 3 As shown, the method may include but is not limited to the following steps:

[0091] Step 31: Send first indication information to the terminal device via a TRS available indication, wherein the terminal device is in an idle state or an inactive state.

[0092] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0093] Optionally, the TRS change period indicated by the first indication information may be a specific period size after the TRS is changed, such as 10ms, 20ms, etc., which is not limited in the present disclosure.

[0094] Alternatively, the TRS change period indicated by the first indication information may also be the position information corresponding to the period after the TRS change in the preset parameter pair. Afterwards, the terminal device can determine the TRS change period from the preset parameter pair based on the position information.

[0095] It can be understood that the network device sends the first indication information to the terminal device through the physical layer TRS available indication to indicate the TRS change period. The TRS period can be updated without changing the configuration period of the high-level RRC message, thereby reducing the power consumption of the network device.

[0096] By implementing the embodiments of the present disclosure, when the terminal device is in an idle state or an inactive state, the network device indicates to the terminal device the change period of the tracking reference signal TRS through the TRS available indication. Thus, the process of updating the TRS period not only does not affect the network signaling, but also reduces the impact of the updating TRS period on the power consumption of the network device.

[0097] See also Figure 4 , Figure 4 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a network device. Figure 4 As shown, the method may include but is not limited to the following steps:

[0098] Step 41: Send first indication information to the terminal device via the downlink control indication DCI, wherein the terminal device is in a connected state.

[0099] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0100] Optionally, the TRS change period indicated by the first indication information may be a specific period size after the TRS is changed, such as 10ms, 20ms, etc., which is not limited in the present disclosure.

[0101] Alternatively, the TRS change period indicated by the first indication information may also be the position information corresponding to the TRS change period in the preset parameter pair. Afterwards, the terminal device can determine the TRS change period from the preset parameter pair based on the position information.

[0102] It can be understood that the network device sends the first indication information to the terminal device through the physical layer DCI to indicate the change period of TRS. The TRS period can be updated without changing the configuration period of the high-level RRC message, thereby reducing the power consumption of the network device.

[0103] By implementing the embodiments of the present disclosure, when the terminal device is in a connected state, the network device indicates the change period of the tracking reference signal TRS to the terminal device through the downlink control indication DCI. Therefore, the process of updating the TRS period not only does not affect the network signaling, but also reduces the impact of the updating TRS period on the power consumption of the network device.

[0104] See also Figure 5 , Figure 5 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a network device. Figure 5 As shown, the method may include but is not limited to the following steps:

[0105] Step 51: Determine the value of the first preset bit in the TRS available indication according to the change period size of the TRS.

[0106] The value of the first preset bit is used to represent the changed TRS period size.

[0107] The length n of the first preset bit position may be determined according to the number of available cycles of the TRS, which is not limited in the present disclosure.

[0108] Optionally, the network device may determine the length n of the first preset bit and the position of the first preset bit in the TRS available indication according to a protocol agreement.

[0109] Optionally, the network device may determine the value of the first preset bit in the TRS available indication according to the change period size of the TRS in a binary coding manner.

[0110] For example, if the change period of TRS is 5 ms, the corresponding value of the first preset bit may be 101. If the change period of TRS is 10 ms, the corresponding value of the first preset bit may be 10010, etc., which is not limited in the present disclosure.

[0111] Step 52: Send first indication information to the terminal device via a TRS available indication, wherein the terminal device is in an idle state or an inactive state.

[0112] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0113] It can be understood that the first indication information in this embodiment may be the value of the first preset bit.

[0114] The specific implementation of step 52 can refer to the detailed description in other embodiments of the present disclosure, and will not be described in detail here.

[0115] It can be understood that the network device indicates the TRS change period to the terminal device through the value of the first preset bit in the TRS available indication of the physical layer. The TRS period can be updated without changing the configuration period of the high-level RRC message, thereby reducing the power consumption of the network device.

[0116] By implementing the embodiments of the present disclosure, the network device determines the value of the first preset bit in the TRS available indication according to the size of the TRS change cycle, and then when the terminal device is in an idle state or an inactive state, the TRS change cycle is indicated to the terminal device through the TRS available indication, so that the process of updating the TRS cycle not only does not affect the network signaling, but also reduces the impact of updating the TRS cycle on the power consumption of the network device.

[0117] See also Figure 6 , Figure 6 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a network device. Figure 6 As shown, the method may include but is not limited to the following steps:

[0118] Step 61: Determine the value of the first preset bit in the DCI according to the change period size of the TRS.

[0119] The value of the first preset bit is used to represent the changed TRS period size.

[0120] The length n of the first preset bit position may be determined according to the number of available cycles of the TRS, which is not limited in the present disclosure.

[0121] Optionally, the network device may determine the length of the first preset bit and the position of the first preset bit in the TRS available indication according to a protocol agreement.

[0122] Optionally, the network device may determine the value of the first preset bit in the DCI according to the change period size of the TRS in a binary coding manner.

[0123] For example, if the change period of TRS is 5 ms, the corresponding value of the first preset bit may be 101. If the change period of TRS is 10 ms, the corresponding value of the first preset bit may be 10010, etc., which is not limited in the present disclosure.

[0124] Step 62: Send first indication information to the terminal device via the downlink control indication DC I, wherein the terminal device is in a connected state.

[0125] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0126] It can be understood that the first indication information in this embodiment may be the value of the first preset bit.

[0127] It can be understood that the network device indicates the TRS change period to the terminal device through the value of the first preset bit in the physical layer DCI. The TRS period can be updated without changing the configuration period of the high-level RRC message, thereby reducing the power consumption of the network device.

[0128] The specific implementation of step 62 may refer to the detailed descriptions in other embodiments of the present disclosure, and will not be described in detail here.

[0129] By implementing the disclosed embodiment, the network device determines the value of the first preset bit in the DCI according to the size of the TRS change cycle, and then indicates the TRS change cycle to the terminal device through the downlink control indication DCI when the terminal device is in a connected state. As a result, the process of updating the TRS cycle not only does not affect network signaling, but also reduces the impact of updating the TRS cycle on the power consumption of the network device.

[0130] See also Figure 7 , Figure 7 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a network device. Figure 7 As shown, the method may include but is not limited to the following steps:

[0131] Step 71: Determine the value of the second preset bit in the TRS available indication according to the position of the TRS change period in the preset parameter pair.

[0132] The preset parameter pair may include two TRS periods of different sizes.

[0133] Optionally, the preset parameter pair may be configured by high-level signaling, including a set of normally configured TRS cycles and power-saving TRS cycles. For example, the preset parameter pair may be [5ms, 20ms], where 5ms may be a normally configured TRS cycle and 20ms may be a power-saving TRS cycle. This disclosure does not limit this.

[0134] The second preset bit position in the TRS available indication may be an information field of nbit in the TRS available indication. For example, nbit may be 1bit, 2bit, and so on.

[0135] For example, if the second preset bit is 1 bit, the value of the second preset bit in the TRS available indication is 0, which can indicate that the change period of TRS is the period value corresponding to the first position in the preset parameter pair, and the value of the second preset bit is 1, which can indicate that the change period of TRS is the period value corresponding to the second position in the preset parameter pair; or, the value of the second preset bit is 1, which can indicate that the change period of TRS is the period value corresponding to the first position in the preset parameter pair, and the value of the second preset bit is 0, which can indicate that the change period of TRS is the period value corresponding to the second position in the preset parameter pair. The present disclosure does not limit this.

[0136] If the second preset bit is 2bit, the value of the second preset bit is 00, which may indicate that the change period of TRS is the period value corresponding to the first position in the preset parameter pair; the value of the second preset bit is 01, which may indicate that the change period of TRS is the period value corresponding to the second position in the preset parameter pair; the value of the second preset bit is 10, which may indicate that the change period of TRS is the period value corresponding to the third position in the preset parameter pair; the value of the second preset bit is 11, which may indicate that the change period of TRS is the period value corresponding to the fourth position in the preset parameter pair, and so on. The present disclosure does not limit this.

[0137] Optionally, the network device may determine the length n of the second preset bit and the position of the second preset bit in the TRS available indication according to a protocol agreement.

[0138] Step 72: Send first indication information to the terminal device via a TRS available indication, wherein the terminal device is in an idle state or an inactive state.

[0139] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0140] It can be understood that the first indication information in this embodiment can be the value of the second preset bit in the TRS available indication, and the terminal device can obtain the TRS change period from the preset parameter pair according to the value of the second preset bit.

[0141] The specific implementation of step 72 can refer to the detailed description in other embodiments of the present disclosure, and will not be described in detail here.

[0142] By implementing the embodiments of the present disclosure, the network device determines the value of the second preset bit in the TRS available indication according to the position of the TRS change period in the preset parameter pair. Thereafter, when the terminal device is in an idle state or an inactive state, the TRS change period is notified to the terminal device through the TRS available indication, thereby ensuring that the process of updating the TRS period does not affect network signaling and reduces the impact of updating the TRS period on the power consumption of the network device.

[0143] See also Figure 8 , Figure 8 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a network device. Figure 8 As shown, the method may include but is not limited to the following steps:

[0144] Step 81, determining the value of the second preset bit in the DCI according to the position of the TRS change period in the preset parameter pair.

[0145] The preset parameter pair may include two TRS periods of different sizes.

[0146] Optionally, the preset parameter pair may be configured by high-level signaling, including a set of normally configured TRS cycles and power-saving TRS cycles. For example, the preset parameter pair may be [5ms, 20ms], where 5ms may be a normally configured TRS cycle and 20ms may be a power-saving TRS cycle. This disclosure does not limit this.

[0147] Optionally, the second preset bit position may be an information field of nbit in the DC I. For example, nbit may be 1bit, 2bit, and so on.

[0148] For example, if the second preset bit is 1bit, the value of the second preset bit in the DCI is 0, which can indicate that the change period of TRS is the period value corresponding to the first position in the preset parameter pair, and the value of the second preset bit is 1, which can indicate that the change period of TRS is the period value corresponding to the second position in the preset parameter pair; or, the value of the second preset bit is 1, which can indicate that the change period of TRS is the period value corresponding to the first position in the preset parameter pair, and the value of the second preset bit is 0, which can indicate that the change period of TRS is the period value corresponding to the second position in the preset parameter pair. The present disclosure does not limit this.

[0149] If the second preset bit is 2bit, the value of the second preset bit is 00, which may indicate that the change period of TRS is the period value corresponding to the first position in the preset parameter pair; the value of the second preset bit is 01, which may indicate that the change period of TRS is the period value corresponding to the second position in the preset parameter pair; the value of the second preset bit is 10, which may indicate that the change period of TRS is the period value corresponding to the third position in the preset parameter pair; the value of the second preset bit is 11, which may indicate that the change period of TRS is the period value corresponding to the fourth position in the preset parameter pair, and so on. The present disclosure does not limit this.

[0150] Optionally, the network device may determine the length n of the second preset bit and the position of the second preset bit in the DCI according to a protocol agreement.

[0151] Step 82: Send first indication information to the terminal device via the downlink control indication DC I, wherein the terminal device is in a connected state.

[0152] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0153] It can be understood that the first indication information in this embodiment can be the value of the second preset bit in the DCI, and the terminal device can obtain the TRS change period from the preset parameter pair according to the value of the second preset bit.

[0154] The specific implementation of step 82 can refer to the detailed description in other embodiments of the present disclosure, and will not be described in detail here.

[0155] Optionally, in order to enable the terminal device to determine the TRS change period according to the value of the second preset bit, the network device may send a second indication information to the terminal device, wherein the second indication information is used to indicate a preset parameter pair.

[0156] By implementing the embodiments of the present disclosure, the network device determines the value of the second preset bit in the DCI according to the position of the TRS change period in the preset parameter pair. Thereafter, when the terminal device is in a connected state, the DCI indicates the TRS change period to the terminal device through downlink control, thereby ensuring that the process of updating the TRS period does not affect network signaling and reduces the impact of updating the TRS period on the power consumption of the network device.

[0157] See also Fig. 9 , Fig. 9 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a network device. Fig. 9 As shown, the method may include but is not limited to the following steps:

[0158] Step 91: When the terminal device is in a connected state and the service type of the terminal device changes, first indication information is sent to the terminal device via DCI.

[0159] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0160] Among them, the service type can be divided into high-reliability service, ordinary service, and low-reliability service, etc. according to the reliability of the service, and the present disclosure does not limit this.

[0161] Optionally, the network device may configure a shorter TRS period for a high-reliability service, and configure a shorter TRS period for a common service or a service with lower reliability, which is not limited in the present disclosure.

[0162] It is understandable that when the service type of the terminal device changes, the network device can configure the TRS change period for the terminal device according to the changed service type, and send it to the terminal device through DCI, thereby further reducing the power consumption of the network device.

[0163] By implementing the embodiments of the present disclosure, when the terminal device is in a connected state and the service type of the terminal device changes, the network device sends the first indication information to the terminal device through DCI, so that the process of updating the TRS period not only does not affect the network signaling, but also further reduces the impact of updating the TRS period on the power consumption of the network device.

[0164] See also Fig.10 , Fig.10 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a terminal device. Fig.10 As shown, the method may include but is not limited to the following steps:

[0165] Step 101: receiving first indication information sent by a network device at a physical layer, wherein the first indication information is used to indicate a change period of a tracking reference signal TRS.

[0166] In the present disclosure, it is considered that the period of CSI RS configuration using radio resource control (RRC) messages is longer than that of short-period TRS. In order to avoid the increase in signaling load caused by changing the configuration period of the RRC message to indicate the change period of TRS to the terminal device, physical layer signaling is used to indicate the change period of TRS to the terminal device.

[0167] Optionally, the terminal device may receive, at the physical layer, first indication information added by the network device to the TRS available indication, and further determine the change period of the TRS.

[0168] Alternatively, the terminal device may also receive, at the physical layer, the first indication information added by the network device in the DCI, and further determine the change period of the TRS.

[0169] It can be understood that in the present disclosure, there is no need to change the configuration period of the high-level RRC message. The TRS period can be updated by simply adding the first indication information for indicating the change period of TRS in the physical layer signaling, thereby reducing the power consumption of the network device.

[0170] By implementing the embodiment of the present disclosure, the terminal device receives the first indication information sent by the network device at the physical layer, wherein the first indication information is used to indicate the change period of the tracking reference signal TRS. Thus, the process of updating the TRS period not only does not affect the network signaling, but also reduces the impact of the updating TRS period on the power consumption of the network device.

[0171] See also Fig.11 , Fig.11 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a terminal device. Fig.11 As shown, the method may include but is not limited to the following steps:

[0172] Step 111: When the terminal device is in an idle state or an inactive state, first indication information is received through a TRS available indication.

[0173] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0174] Optionally, the TRS change period indicated by the first indication information included in the TRS available indication may be a specific period size after the TRS is changed, such as 10ms, 20ms, etc., which is not limited in the present disclosure.

[0175] Step 112: Determine the TRS change period size according to the value of the first preset bit in the TRS available indication.

[0176] The value of the first preset bit is used to represent the changed TRS period size.

[0177] For example, if the value of the first preset bit in the TRS available indication is 101, the corresponding TRS change period may be 5 ms. Alternatively, the value of the first preset bit in the TRS available indication may be 10010, and the corresponding TRS change period may be 10 ms.

[0178] It should be noted that the above examples are merely illustrative and cannot be used as specific limitations on the value of the first preset bit and the TRS change period in the present disclosure.

[0179] Optionally, the terminal device may determine the length n of the first preset bit and the position of the first preset bit in the TRS available indication according to a protocol agreement or an instruction of a network device, which is not limited in the present disclosure.

[0180] By implementing the embodiment of the present disclosure, when the terminal device is in an idle state or an inactive state, the first indication information is received through the TRS available indication, and then the TRS change period size is determined according to the value of the first preset bit in the TRS available indication. Thus, the process of updating the TRS period not only does not affect the network signaling, but also reduces the impact of the updating TRS period on the power consumption of the network device.

[0181] See also Fig.12 , Fig.12 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a terminal device. Fig.12 As shown, the method may include but is not limited to the following steps:

[0182] Step 121: When the terminal device is in an idle state or an inactive state, first indication information is received through a TRS available indication.

[0183] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0184] Optionally, the change period of the TRS indicated by the first indication information included in the TRS available indication may be position information corresponding to the change period of the TRS in the preset parameter pair.

[0185] The specific implementation of step 121 can refer to the detailed description in other embodiments of the present disclosure, and will not be described in detail here.

[0186] Step 122: Receive second indication information sent by the network device, where the second indication information is used to indicate a preset parameter pair.

[0187] The preset parameter pair may include two TRS periods of different sizes.

[0188] Optionally, the preset parameter pair may be configured by high-level signaling, including a set of normally configured TRS cycles and power-saving TRS cycles. For example, the preset parameter pair may be [5ms, 20ms], where 5ms may be a normally configured TRS cycle and 20ms may be a power-saving TRS cycle. This disclosure does not limit this.

[0189] Step 123: Determine the position of the TRS change period in the preset parameter pair according to the value of the second preset bit in the TRS available indication.

[0190] Optionally, the terminal device may determine the length n of the second preset bit and the position of the second preset bit in the TRS available indication according to a protocol agreement or an instruction of a network device, which is not limited in the present disclosure.

[0191] For example, if the length of the second preset bit in the TRS available indication is 1 bit and the value is 1, the change period of the TRS can be the period value corresponding to the second position in the preset parameter pair. Alternatively, if the length of the second preset bit is 2 bits and the value is 11, the change period of the TRS can be the period value corresponding to the fourth position in the preset parameter pair.

[0192] It should be noted that the above examples are merely illustrative and cannot be used as specific limitations on the value of the second preset bit in the present disclosure.

[0193] By implementing the disclosed embodiment, when the terminal device is in an idle state or an inactive state, the first indication information is received through the TRS available indication, and then the preset parameter pair sent by the network device is received, and finally, according to the value of the second preset bit in the TRS available indication, the position of the TRS change period in the preset parameter pair is determined, and then the TRS change period is determined. Thus, the process of updating the TRS period not only does not affect the network signaling, but also reduces the impact of updating the TRS period on the power consumption of the network device.

[0194] See also Fig.13 , Fig.13 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a terminal device. Fig.13 As shown, the method may include but is not limited to the following steps:

[0195] Step 131: When the terminal device is in a connected state, first indication information is received through a downlink control indication DCI.

[0196] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0197] Optionally, the TRS change period indicated by the first indication information included in the DCI may be a specific period size after the TRS is changed, such as 10ms, 20ms, etc., which is not limited in the present disclosure.

[0198] Step 132: Determine the change period of TRS according to the value of the first preset bit in DCI.

[0199] The value of the first preset bit is used to represent the changed TRS period size.

[0200] For example, if the value of the first preset bit in the DCI is 101, the corresponding TRS change period size may be 5 ms. Alternatively, the value of the first preset bit in the DCI may be 10010, and the corresponding TRS change period size may be 10 ms. This disclosure does not limit this.

[0201] It should be noted that the above examples are merely illustrative and cannot be used as specific limitations on the value of the first preset bit and the size of the TRS change cycle in the present disclosure.

[0202] Optionally, the terminal device may determine the length n of the first preset bit and the position of the first preset bit in the TRS available indication according to a protocol agreement or an instruction of a network device, which is not limited in the present disclosure.

[0203] By implementing the embodiment of the present disclosure, when the terminal device is in a connected state, the first indication information is received through the DCI, and then the change period size of the TRS is determined according to the value of the first preset bit in the DCI. Therefore, the process of updating the TRS period not only does not affect the network signaling, but also reduces the impact of updating the TRS period on the power consumption of the network device.

[0204] See also Fig.14 , Fig.14 1 is a flow chart of a method for determining a tracking reference signal period provided by an embodiment of the present disclosure, and the method is executed by a terminal device. Fig.14 As shown, the method may include but is not limited to the following steps:

[0205] Step 141: When the terminal device is in a connected state, first indication information is received through a downlink control indication DCI.

[0206] The first indication information is used to indicate a change period of the tracking reference signal TRS.

[0207] Optionally, the TRS change period indicated by the first indication information included in the DCI may be position information corresponding to the TRS change period in a preset parameter pair.

[0208] The preset parameter pair may include two TRS periods of different sizes.

[0209] Optionally, the preset parameter pair may be configured by high-level signaling, including a set of normally configured TRS cycles and power-saving TRS cycles. For example, the preset parameter pair may be [5ms, 20ms], where 5ms may be a normally configured TRS cycle and 20ms may be a power-saving TRS cycle. This disclosure does not limit this.

[0210] Step 142: Receive second indication information sent by the network device, where the second indication information is used to indicate a preset parameter pair.

[0211] Step 143: Determine the position of the TRS change period in the preset parameter pair according to the value of the second preset bit in the DCI.

[0212] Optionally, the terminal device may determine the length n of the second preset bit and the position of the second preset bit in the DCI according to a protocol agreement or an instruction of a network device, which is not limited in the present disclosure.

[0213] For example, if the length of the second preset bit in the DCI is 1 bit and the value is 1, the change period of the TRS may be the period value corresponding to the second position in the preset parameter pair. Alternatively, if the length of the second preset bit is 2 bits and the value is 11, the change period of the TRS may be the period value corresponding to the fourth position in the preset parameter pair.

[0214] It should be noted that the above examples are merely illustrative and cannot be used as specific limitations on the value of the second preset bit in the present disclosure.

[0215] By implementing the disclosed embodiment, when the terminal device is in a connected state, the first indication information is received through DCI, and then the preset parameter pair sent by the network device is received, and finally the position of the TRS change period in the preset parameter pair is determined according to the value of the second preset bit in the TRS available indication, and then the TRS change period is determined. Thus, the process of updating the TRS period not only does not affect the network signaling, but also reduces the impact of updating the TRS period on the power consumption of the network device.

[0216] In the above embodiments provided by the present disclosure, the methods provided by the embodiments of the present disclosure are introduced from the perspectives of network devices and terminal devices, respectively. In order to implement the functions in the methods provided by the above embodiments of the present disclosure, the network devices and terminal devices may include hardware structures and software modules, and the above functions may be implemented in the form of hardware structures, software modules, or hardware structures plus software modules. One of the above functions may be executed in the form of hardware structures, software modules, or hardware structures plus software modules.

[0217] See also Fig.15 , which is a structural diagram of a communication device 150 provided in an embodiment of the present disclosure. Fig.15 The communication device 150 shown may include a processing module 1501 and a transceiver module 1502 .

[0218] The transceiver module 1502 may include a sending module and / or a receiving module. The sending module is used to implement a sending function, and the receiving module is used to implement a receiving function. The transceiver module 1502 may implement a sending function and / or a receiving function.

[0219] It can be understood that the communication device 150 can be a network device, a device in a network device, or a device that can be used in conjunction with a network device.

[0220] The communication device 150, on the network device side, includes:

[0221] The transceiver module sends first indication information to the terminal device at the physical layer, wherein the first indication information is used to indicate a change period of a tracking reference signal TRS.

[0222] Optionally, the transceiver module 1502 is specifically used for:

[0223] Sending first indication information to the terminal device through a TRS available indication, wherein the terminal device is in an idle state or an inactive state; or,

[0224] The first indication information is sent to the terminal device via the downlink control indication DCI, wherein the terminal device is in a connected state.

[0225] Optionally, also include:

[0226] The processing module 1501 is used to determine the value of the first preset bit in the TRS available indication according to the change period size of the TRS;

[0227] or,

[0228] The processing module 1501 is further configured to determine the value of the first preset bit in the DCI according to the change period size of the TRS;

[0229] The value of the first preset bit is used to represent the changed TRS period size.

[0230] Optionally, the processing module 1501 is further specifically configured to:

[0231] Determine the value of the second preset bit in the TRS available indication according to the position of the TRS change period in the preset parameter pair;

[0232] or,

[0233] Determine the value of the second preset bit in the DC I according to the position of the TRS change period in the preset parameter pair;

[0234] The preset parameter pair includes two TRS periods of different sizes.

[0235] Optionally, the transceiver module 1502 is further specifically configured to:

[0236] Sending second indication information to the terminal device, wherein the second indication information is used to indicate a preset parameter pair.

[0237] Optionally, the transceiver module 1502 is further specifically configured to:

[0238] When the service type of the terminal device changes, first indication information is sent to the terminal device via DCI.

[0239] In the communication device provided by the present disclosure, the network device indicates the change period of the tracking reference signal TRS to the terminal device at the physical layer, so that the process of updating the TRS period not only does not affect the network signaling, but also reduces the impact of updating the TRS period on the power consumption of the network device.

[0240] It can be understood that the communication device 100 can be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device.

[0241] The communication device 100, on the terminal device side, comprises:

[0242] The transceiver module 1502 is used to receive first indication information sent by a network device at a physical layer, wherein the first indication information is used to indicate a change period of a tracking reference signal TRS.

[0243] Optionally, the transceiver module 1502 is specifically configured to:

[0244] receiving first indication information via a TRS available indication;

[0245] or,

[0246] The first indication information is received through a downlink control indication DCI.

[0247] Optionally, also include:

[0248] The processing module 1501 is used to determine the change period of the TRS according to the value of the first preset bit in the TRS available indication;

[0249] or,

[0250] The processing module 1501 is further configured to determine a change period size of the TRS according to a value of a first preset bit in the DCI;

[0251] The value of the first preset bit is used to represent the changed TRS period size.

[0252] Optionally, the processing module 1501 is further specifically configured to:

[0253] Determine the position of the TRS change period in the preset parameter pair according to the value of the second preset bit in the TRS available indication;

[0254] or,

[0255] Determine the position of the TRS change period in the preset parameter pair according to the value of the second preset bit in the DCI;

[0256] The preset parameter pair includes two TRS periods of different sizes.

[0257] Optionally, also specifically used for:

[0258] Second indication information sent by the network device is received, wherein the second indication information is used to indicate a preset parameter pair.

[0259] In the communication device provided by the present disclosure, the terminal device receives the first indication information sent by the network device at the physical layer, wherein the first indication information is used to indicate the change period of the tracking reference signal TRS. Thus, the process of updating the TRS period not only does not affect the network signaling, but also reduces the impact of the updating TRS period on the power consumption of the network device.

[0260] See also Fig.16 , Fig.16 1 is a schematic diagram of the structure of another communication device 160 provided in an embodiment of the present disclosure. The communication device 160 may be a network device, or a terminal device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the terminal device to implement the above method. The device may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

[0261] The communication device 160 may include one or more processors 1601. The processor 1601 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.

[0262] Optionally, the communication device 160 may further include one or more memories 1602, on which a computer program 1604 may be stored, and the processor 1601 executes the computer program 1604 so that the communication device 160 performs the method described in the above method embodiment. Optionally, data may also be stored in the memory 1602. The communication device 160 and the memory 1602 may be provided separately or integrated together.

[0263] Optionally, the communication device 160 may further include a transceiver 1605 and an antenna 1606. The transceiver 1605 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing a transceiver function. The transceiver 1605 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

[0264] Optionally, the communication device 160 may further include one or more interface circuits 1607. The interface circuit 1607 is used to receive code instructions and transmit them to the processor 1601. The processor 1601 runs the code instructions to enable the communication device 160 to execute the method described in the above method embodiment.

[0265] The communication device 160 is a network device: the processor 1601 is used to execute Figure 5 Step 51 in; Figure 6 Step 61 in; Figure 7 Step 71 in; Figure 8 Step 81 in the above, etc. The transceiver 1605 is used to perform Figure 2 Step 21 in Figure 3 Step 31 in Figure 4 step 41 of ; or Figure 5 Step 52 in and so on.

[0266] The communication device 160 is a terminal device: the processor 1601 is used to execute Fig.11 Step 112 in; Fig.12 step 123 of ; or Fig.13 Step 132 in the above, etc.; transceiver 1605 is used to perform Fig.10 Step 101 in the above; Fig.11 Step 111 in; Fig.12 Step 121 and step 122, etc.

[0267] In one implementation, the processor 1601 may include a transceiver for implementing the receiving and sending functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated. The above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.

[0268] In one implementation, the processor 1601 may store a computer program 1603, which runs on the processor 1601 and enables the communication device 160 to perform the method described in the above method embodiment. The computer program 1603 may be fixed in the processor 1601, in which case the processor 1601 may be implemented by hardware.

[0269] In one implementation, the communication device 160 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments. The processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0270] The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited thereto. Fig.16 The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0271] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0272] (2) having a set of one or more ICs, and optionally, the IC set may also include a storage component for storing data and computer programs;

[0273] (3) ASIC, such as modem;

[0274] (4) Modules that can be embedded in other devices;

[0275] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0276] (6)Others

[0277] For the case where the communication device may be a chip or a chip system, see Fig.17 Schematic diagram of the chip structure shown. Fig.17 The chip shown includes a processor 1701 and an interface 1702. The number of the processor 1701 can be one or more, and the number of the interface 1702 can be multiple.

[0278] For the case where the chip is used to implement the functions of the network device in the embodiment of the present disclosure:

[0279] Processor 1701 is used to execute Figure 5 Step 51 in; Figure 6 Step 61 in; Figure 7 Step 71 in; Figure 8 Step 81 in the above, etc. Interface 1702 is used to execute Figure 2 Step 21 in Figure 3 Step 31 in Figure 4 step 41 of ; or Figure 5 Step 52 in , etc.

[0280] For the case where the chip is used to implement the functions of the terminal device in the embodiment of the present disclosure:

[0281] Processor 1701 is used to execute Fig.11 Step 112 in; Fig.12 step 123 of ; or Fig.13 Step 132 in the above, etc.; interface 1702 is used to execute Fig.10 Step 101 in the above; Fig.11 Step 111 in; Fig.12 Step 121 and step 122, etc.

[0282] Optionally, the chip further includes a memory 1703, and the memory 1703 is used to store necessary computer programs and data.

[0283] Those skilled in the art may also understand that the various illustrative logic blocks and steps listed in the embodiments of the present disclosure may be implemented by electronic hardware, computer software, or a combination of the two. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the functions described for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present disclosure.

[0284] The present disclosure also provides a communication system, which includes the aforementioned Fig.15 In the embodiment, the communication device as the terminal device and the communication device as the network device, or the system includes the aforementioned Fig.16 The communication device in the embodiment serves as a terminal device and the communication device serves as a network device.

[0285] The present disclosure also provides a computer-readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0286] The present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0287] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program can 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 can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disk (DVD)), or a semiconductor medium (eg, a solid state drive (SSD)).

[0288] Those skilled in the art can understand that the various numerical numbers such as first and second involved in the present disclosure are only used for distinction for convenience of description and are not used to limit the scope of the embodiments of the present disclosure, and also indicate the order of precedence.

[0289] At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure. In the embodiments of the present disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no order of precedence or size between the technical features described by the "first", "second", "third", "A", "B", "C" and "D".

[0290] The corresponding relationships shown in the tables in the present disclosure can be configured or predefined. The values ​​of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure. When configuring the corresponding relationship between the information and each parameter, it is not necessarily required to configure all the corresponding relationships illustrated in each table. For example, in the table in the present disclosure, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values ​​or representations of the parameters can also be other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.

[0291] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0292] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

[0293] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0294] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A method for determining a tracking reference signal period, characterized in that: Executed by a network device, the method includes: A first indication information is sent to a terminal device at a physical layer by tracking a reference signal TRS available indication or by using a downlink control indication DCI, wherein the first indication information is used to indicate a TRS change period, wherein the TRS change period is used to indicate a TRS period different from a configured TRS period, and the TRS available indication or the value of the second preset bit in the DCI is used to indicate the position of the TRS change period in a preset parameter pair, wherein the preset parameter pair includes two TRS periods of different sizes.

2. The method according to claim 1, wherein Also includes: Determining a value of a first preset bit in the TRS available indication according to a change period of the TRS; or, Determining a value of a first preset bit in the DCI according to a change period of the TRS; The value of the first preset bit is used to represent the changed TRS period size.

3. The method according to claim 1, wherein Also includes: Sending second indication information to the terminal device, wherein the second indication information is used to indicate the preset parameter pair.

4. The method according to any one of claims 1 to 3, characterized in that: The sending the first indication information to the terminal device through a downlink control indication DCI includes: When the service type of the terminal device changes, the first indication information is sent to the terminal device via DCI.

5. A method for determining a tracking reference signal period, characterized in that: Executed by a terminal device, the method includes: The first indication information sent by the network device is received at the physical layer by tracking the reference signal TRS available indication or by the downlink control indication DCI, wherein the first indication information is used to indicate the change period of TRS, wherein the change period of TRS is used to indicate a TRS period different from the configured TRS period, and the value of the second preset bit in the TRS available indication or DCI is used to indicate the position of the TRS change period in the preset parameter pair, and the preset parameter pair includes two TRS periods of different sizes.

6. The method according to claim 5, wherein Also includes: Determining a change period of the TRS according to a value of a first preset bit in the TRS available indication; or, Determining a change period of the TRS according to a value of a first preset bit in the DCI; The value of the first preset bit is used to represent the changed TRS period size.

7. The method according to claim 5, wherein Also includes: Receive second indication information sent by the network device, wherein the second indication information is used to indicate the preset parameter pair.

8. A communication device, characterized in that: The device comprises: The transceiver module sends a first indication information to the terminal device at the physical layer by tracking the reference signal TRS available indication or through the downlink control indication DCI, wherein the first indication information is used to indicate the change period of TRS, wherein the change period of TRS is used to indicate a TRS period different from the configured TRS period, and the value of the second preset bit in the TRS available indication or DCI is used to indicate the position of the TRS change period in the preset parameter pair, and the preset parameter pair includes two TRS periods of different sizes.

9. The device according to claim 8, wherein Also includes: a processing module, configured to determine a value of a first preset bit in the TRS available indication according to a change period of the TRS; or, The processing module is further configured to determine a value of a first preset bit in the DCI according to a change period of the TRS; The value of the first preset bit is used to represent the changed TRS period size.

10. The device according to claim 8, wherein The transceiver module is further specifically used for: Sending second indication information to the terminal device, wherein the second indication information is used to indicate the preset parameter pair.

11. The device according to any one of claims 8 to 10, characterized in that: The transceiver module is further specifically used for: When the service type of the terminal device changes, the first indication information is sent to the terminal device via DCI.

12. A communication device, characterized in that: The device is located at the terminal device side and includes: A transceiver module is used to receive first indication information sent by a network device at the physical layer by tracking a reference signal TRS available indication or through a downlink control indication DCI, wherein the first indication information is used to indicate a TRS change period, wherein the TRS change period is used to indicate a TRS period different from a configured TRS period, and the value of the second preset bit in the TRS available indication or DCI is used to indicate the position of the TRS change period in a preset parameter pair, and the preset parameter pair includes two TRS periods of different sizes.

13. The device according to claim 12, wherein Also includes: a processing module, configured to determine a change period of the TRS according to a value of a first preset bit in the TRS available indication; or, The processing module is further configured to determine a change period of the TRS according to a value of a first preset bit in the DCI; The value of the first preset bit is used to represent the changed TRS period size.

14. The device according to claim 13, wherein the transceiver module is further configured to: receiving second indication information sent by the network device, wherein: The second indication information is used to indicate the preset parameter pair.

15. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device performs the method according to any one of claims 1 to 4.

16. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device performs the method according to any one of claims 5 to 7.

17. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method according to any one of claims 1 to 4.

18. A communication device, characterized in that: include: processor and interface circuits; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method according to any one of claims 5 to 7.

19. A computer-readable storage medium storing instructions, which, when executed, enable the method according to any one of claims 1 to 4 to be implemented.

20. A computer-readable storage medium storing instructions, which, when executed, enable the method according to any one of claims 5 to 7 to be implemented.

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