Parameter resetting method and device, parameter information receiving method and device

Abstract

The embodiments of the present invention disclose a parameter resetting method and device, and a parameter information receiving method and device, wherein the parameter resetting method comprises: after the PL corresponding to the updated path loss reference signal PL-RS parameter information takes effect, or after the beam state corresponding to the updated beam state information takes effect, resetting the relevant parameters of the closed-loop power control. The above technical solution is adopted to solve the problem that in the related technology, when a new beam takes effect while the PL of the old beam is still used, the closed-loop power control is likely to accumulate a large negative value, resulting in a sudden drop in the transmission power after the PL of the new beam takes effect.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a parameter resetting method and device, and a parameter information receiving method and device. Background Art

[0002] One of the key features of the fifth-generation mobile communication system's new air interface technology (new radio, NR for short) is support for high frequency bands. High frequency bands have abundant frequency domain resources, but there is a problem of small coverage due to fast attenuation of wireless signals. Sending signals in a beam manner can concentrate energy in a relatively small spatial range, improving the coverage problem of high-frequency band signals. In a beam scenario, the beam pair between the base station and the UE may also change with time and position, so a flexible beam update mechanism is required. When the communication beam changes, updating the beam and the RS information (PL-RS parameters) of the measured path loss of the corresponding link through MAC CE is more flexible than updating high-level parameters. The solution of the present invention is mainly used to solve the problem of the existence of a mechanism for updating PL-RS parameters by MAC CE.

[0003] When the communication beam changes, the beam and the RS information (PL-RS parameters) of the corresponding link can be updated through MAC CE. Since PL is the result of high-level parameter filtering and requires multiple measurements, the delay of PL taking effect is longer than the delay of the new beam taking effect. When the new beam takes effect and the PL of the old beam is still in use, the closed-loop power control is likely to accumulate a large negative value, resulting in a sudden drop in the transmit power after the PL of the new beam takes effect.

[0004] Regarding the related technology, when the new beam takes effect while the PL of the old beam is still in use, the closed-loop power control is likely to accumulate a large negative value, resulting in a sudden drop in the transmission power after the PL of the new beam takes effect. No effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present invention provide a parameter resetting method and device, and a parameter information receiving method and device, so as to at least solve the problem in the related art that when a new beam takes effect while the PL of an old beam is still in use, the closed-loop power control is likely to accumulate a large negative value, resulting in a sudden drop in the transmission power after the PL of the new beam takes effect.

[0006] According to one embodiment of the present invention, a parameter resetting method is provided, comprising: resetting relevant parameters of closed-loop power control after the PL corresponding to the updated path loss-reference signal PL-RS parameter information takes effect, or after the beam state corresponding to the updated beam state information takes effect.

[0007] In an embodiment of the present invention, the updated PL-RS parameter information or updated beam state information is carried by one of the following signaling: radio resource control RRC signaling, media access control unit MAC CE, and physical layer signaling.

[0008] In the embodiment of the present invention, the relevant parameters of the closed-loop power control include: a power control adjustment state corresponding to the closed-loop power control number.

[0009] In an embodiment of the present invention, a closed-loop power control number is determined according to the PL-RS parameters to be activated in the updated PL-RS parameter information or the beam state parameters to be activated in the updated beam state information, including: determining the closed-loop power control number according to the number of the PL-RS parameters to be activated; or determining the closed-loop power control number according to the association between the PL-RS parameters to be activated and the closed-loop power control number; or determining the closed-loop power control number according to the beam state number to be activated; or determining the closed-loop power control number according to the association between the beam state parameters to be activated and the closed-loop power control number.

[0010] In an embodiment of the present invention, the association relationship between the PL-RS parameter to be activated and the closed-loop power control number includes at least one of the following: the number of the PL-RS parameter to be activated and the closed-loop power control number are associated with each other; the number of the PL-RS parameter to be activated and the closed-loop power control number are respectively associated with the same beam state; the number of the PL-RS parameter to be activated and the closed-loop power control number are configured in the same association relationship structure; the association relationship between the beam state parameter to be activated and the closed-loop power control number includes at least one of the following: the number of the beam state parameter to be activated and the closed-loop power control number are associated with each other; the number of the beam state parameter to be activated and the closed-loop power control number are configured in the same association relationship structure.

[0011] In the embodiment of the present invention, for uplink physical shared channel PUSCH transmission, the beam state includes at least one of the following: SRI, or SRI-PUSCH-PowerControl number, TCI state.

[0012] In the embodiment of the present invention, for uplink physical shared channel PUSCH transmission, the association relationship structure includes: SRI-PUSCH-PowerControl number, or TCI state and power control parameter association relationship.

[0013] In the embodiment of the present invention, the closed-loop power control number is determined by SRI-PUSCH-ClosedLoopIndex corresponding to the SRI corresponding to the PL-RS parameter to be activated in the high-level parameter SRI-PUSCH-PowerControl.

[0014] In an embodiment of the present invention, for uplink physical control channel PUCCH transmission, the beam state includes at least one of the following: a spatial relationship of PUCCH, a spatial relationship number of PUCCH, and a TCI state.

[0015] In the embodiment of the present invention, for uplink physical control channel PUCCH transmission, the association relationship structure includes: PUCCH spatial relationship, or TCI state and power control parameter association relationship.

[0016] In the embodiment of the present invention, the closed-loop power control number is determined by the closed-loop power control number corresponding to the PUCCH spatial relationship corresponding to the PL-RS parameters to be activated.

[0017] In an embodiment of the present invention, when at least one of the following conditions is met, the PL corresponding to the updated PL-RS parameter information takes effect after the first time: the total number of configured PL-RS is greater than X, where X is a positive integer; the PL-RS parameter to be activated is not an activated PL-RS.

[0018] In the embodiment of the present invention, the beam state corresponding to the updated beam state information takes effect after the second time.

[0019] In an embodiment of the present invention, the first time is determined by at least one of the following: an ACK response replied by the MAC CE after receiving the updated PL-RS parameter information; the PL-RS to be activated is sent or received at least K times, where K is an integer greater than or equal to 1; after waiting for T time, where the T time refers to one or more predetermined time units, and the predetermined time unit includes at least one of the following: radio frame, subframe, time slot, symbol, second, millisecond, microsecond.

[0020] According to another embodiment of the present invention, a method for receiving parameter information is also provided, including: receiving updated path loss-reference signal PL-RS parameter information, wherein the updated PL-RS parameter information includes at least one of the following information: a first PL-RS parameter, a second PL-RS parameter, wherein, for a predetermined uplink transmission, the first PL-RS parameter is replaced by the second PL-RS parameter.

[0021] In the embodiment of the present invention, the updated PL-RS parameter information is carried by one of the following signaling: radio resource control RRC signaling, media access control unit MAC CE signaling, and physical layer signaling.

[0022] In the embodiment of the present invention, the uplink transmission includes at least one of the following: PUSCH transmission, PUCCH transmission, and SRS transmission.

[0023] In the embodiment of the present invention, the uplink transmission corresponding to the updated PL-RS parameter information is determined by a predetermined method or a configuration method.

[0024] In the embodiment of the present invention, specifically, the predetermined uplink transmission is determined in a predetermined manner or a configuration manner to include at least one of the following: PUSCH transmission, PUCCH transmission, and SRS transmission.

[0025] In the embodiment of the present invention, when the uplink transmission corresponding to the update of the PL-RS parameter information is determined by a configuration method, the configuration method is carried by one of the following signalings: RRC signaling, MAC CE signaling, and physical layer signaling.

[0026] In the embodiment of the present invention, part or all of the association relationship of uplink transmission corresponding to the updated PL-RS parameter information is determined in a predetermined manner or a configuration manner.

[0027] In an embodiment of the present invention, some or all of all association relationships of uplink transmission affected by the updating of PL-RS parameter information are indicated by one of the following methods: a bit map; the N0 with the smallest number in the association relationships; the N1 with the largest number in the association relationships, where N0 and N1 are integers greater than or equal to 1.

[0028] In the embodiment of the present invention, the cell or bandwidth part BWP to which the uplink transmission corresponding to the updated PL-RS parameter information belongs is determined in a predetermined manner or a configuration manner.

[0029] In the embodiment of the present invention, the cell to which the uplink transmission corresponding to the updated PL-RS parameter information belongs includes at least one of the following: a cell related to the transmission resource of the updated PL-RS parameter information, a specific cell, a configured cell, and all activated cells.

[0030] In the embodiment of the present invention, the BWP to which the uplink transmission corresponding to the updated PL-RS parameter information belongs includes: a BWP related to the transmission resource of the PL-RS update information and an activated BWP.

[0031] According to another embodiment of the present invention, a parameter processing method is further provided, comprising: after the second PL-RS parameter in the updated PL-RS parameter information takes effect, the first PL-RS parameter associated with the uplink transmission is replaced by the second PL-RS parameter.

[0032] In an embodiment of the present invention, after the second PL-RS parameter takes effect, the method further includes: determining the PL value of the uplink transmission according to the PL value of the first PL-RS parameter associated with the uplink transmission; or determining the PL value of the uplink transmission according to the L1-PL value of the second PL-RS parameter; or determining the PL value of the uplink transmission according to the PL value of the first PL-RS parameter associated with the uplink transmission and the L1-PL value of the second PL-RS parameter.

[0033] In the embodiment of the present invention, after the second PL-RS parameter takes effect, the method further includes: determining the PL value of the uplink transmission according to the L1-PL value of the first PL-RS parameter associated with the uplink transmission and the L1-PL value of the second PL-RS parameter.

[0034] In an embodiment of the present invention, the method also includes: the PL value of the first PL-RS parameter associated with the uplink transmission includes: the PL value of the first PL-RS parameter associated with the uplink transmission when or before the second PL-RS parameter in the updated PL-RS parameter information takes effect; the L1-PL value of the first PL-RS parameter associated with the uplink transmission includes: at least one L1-PL value of at least one RS sample of the first PL-RS parameter associated with the uplink transmission when or before the second PL-RS parameter in the updated PL-RS parameter information takes effect.

[0035] In the embodiment of the present invention, when or before the second PL-RS parameter in the updated PL-RS parameter information takes effect, the PL value of the first PL-RS parameter associated with uplink transmission is a fixed value.

[0036] In an embodiment of the present invention, the PL value of the uplink transmission is determined according to one or more L1-PL values ​​of the first PL-RS parameter associated with the uplink transmission before the second PL-RS parameter in the updated PL-RS parameter information takes effect and one or more L1-PL values ​​of the second PL-RS parameter when or after the second PL-RS parameter in the updated PL-RS parameter information takes effect after high-layer filtering.

[0037] In an embodiment of the present invention, the second PL-RS parameter in the updated PL-RS parameter information takes effect after the second time; or after the PL value of the second PL-RS parameter in the updated PL-RS parameter information takes effect, the PL value of the uplink transmission is determined according to the PL value of the second PL-RS parameter; or the PL of the second PL-RS parameter in the updated PL-RS parameter information takes effect after the first time.

[0038] According to another embodiment of the present invention, a parameter resetting device is also provided, including: a reset module, used to reset relevant parameters of closed-loop power control after the PL corresponding to the updated path loss-reference signal PL-RS parameter information takes effect, or after the beam state corresponding to the updated beam state information takes effect.

[0039] According to another embodiment of the present invention, a parameter resetting device is provided, including: a processing module, configured to update the first PL-RS parameter associated with the uplink transmission after the second PL-RS parameter in the PL-RS parameter information takes effect, and replace the second PL-RS parameter.

[0040] According to another embodiment of the present invention, a device for receiving parameter information is also provided, including: a receiving module, used to receive updated path loss-reference signal PL-RS parameter information, wherein the updated PL-RS parameter information includes at least one of the following information: a first PL-RS parameter, a second PL-RS parameter, wherein, for a predetermined uplink transmission, the first PL-RS parameter is replaced by the second PL-RS parameter.

[0041] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the above-mentioned parameter resetting method, or parameter information receiving method, or parameter processing method when running.

[0042] According to another aspect of an embodiment of the present invention, there is also provided an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the parameter resetting method, or the parameter information receiving method, or the parameter processing method through the computer program.

[0043] In an embodiment of the present invention, after the PL corresponding to the updated path loss-reference signal PL-RS parameter information takes effect, or after the beam state corresponding to the updated beam state information takes effect, the relevant parameters of the closed-loop power control are reset. The above-mentioned technical solution is adopted to solve the problem in the related technology that when the new beam takes effect and the PL of the old beam is still used, the closed-loop power control is likely to accumulate a large negative value, resulting in a sudden drop in the transmission power after the PL of the new beam takes effect. Therefore, the relevant parameters of the closed-loop power control can be reset when the new beam takes effect and the PL of the old beam is still used, thereby avoiding the problem of the closed-loop power control accumulating a large negative value. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a flow chart of a parameter resetting method according to an embodiment of the present invention;

[0045] Figure 2 is a schematic structural diagram of a parameter resetting device according to an embodiment of the present invention;

[0046] Figure 3 is a flow chart of a method for receiving parameter information according to an embodiment of the present invention;

[0047] Figure 4 is a schematic diagram of the structure of a device for receiving parameter information according to an embodiment of the present invention;

[0048] Figure 5 is a flow chart of a parameter processing method according to an embodiment of the present invention;

[0049] Figure 6 is a structural schematic diagram of a parameter processing device according to an embodiment of the present invention;

[0050] Figure 7 is a schematic diagram of path loss according to an optional embodiment of the present invention;

[0051] Figure 8 It is a schematic diagram of the response of the UE after receiving the MAC CE carrying the updated PL-RS parameters and the updated beam status according to an optional embodiment of the present invention. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0053] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0054] In this embodiment, a parameter resetting method is provided. Figure 1 is a flow chart of a parameter resetting method according to an embodiment of the present invention. Figure 1 As shown, the above parameter resetting method process includes the following steps:

[0055] Step S102: after the PL corresponding to the updated path loss-reference signal PL-RS parameter information takes effect, or after the beam state corresponding to the updated beam state information takes effect, the relevant parameters of the closed-loop power control are reset.

[0056] It should be noted that the path loss-reference signal PL-RS in the embodiment of the present invention refers to the RS referenced by measuring PL, also called the path loss reference reference signal (Pathloss Reference RS).

[0057] Updating the beam state information is also called an indication or update information of a spatial relationship, or an indication or update information of a TCI state.

[0058] In an embodiment of the present invention, after the PL corresponding to the updated path loss-reference signal PL-RS parameter information takes effect, or after the beam state corresponding to the updated beam state information takes effect, the relevant parameters of the closed-loop power control are reset. The above-mentioned technical solution is adopted to solve the problem in the related technology that when the new beam takes effect and the PL of the old beam is still used, the closed-loop power control is likely to accumulate a large negative value, resulting in a sudden drop in the transmission power after the PL of the new beam takes effect. Therefore, the relevant parameters of the closed-loop power control can be reset when the new beam takes effect and the PL of the old beam is still used, thereby avoiding the problem of the closed-loop power control accumulating a large negative value.

[0059] In an embodiment of the present invention, the updated PL-RS parameter information or updated beam state information is carried by one of the following signaling: radio resource control RRC signaling, media access control unit MAC CE, and physical layer signaling.

[0060] In one embodiment of the present invention, the MAC CE carrying the updated PL-RS parameter information refers to the path loss reference RS activation / deactivation MAC CE, including: the path loss reference RS activation / deactivation MAC CE of PUSCH, the path loss reference RS activation / deactivation MAC CE of SRS, or the path loss reference RS activation / deactivation MAC CE of PUCCH.

[0061] In the embodiment of the present invention, the relevant parameters of the closed-loop power control include: a power control adjustment state corresponding to the closed-loop power control number.

[0062] In an embodiment of the present invention, a closed-loop power control number is determined according to the PL-RS parameters to be activated in the updated PL-RS parameter information or the beam state parameters to be activated in the updated beam state information, including: determining the closed-loop power control number according to the number of the PL-RS parameters to be activated; or determining the closed-loop power control number according to the association between the PL-RS parameters to be activated and the closed-loop power control number; or determining the closed-loop power control number according to the beam state number to be activated; or determining the closed-loop power control number according to the association between the beam state parameters to be activated and the closed-loop power control number.

[0063] In an embodiment of the present invention, the association relationship between the PL-RS parameter to be activated and the closed-loop power control number includes at least one of the following: the number of the PL-RS parameter to be activated and the closed-loop power control number are associated with each other; the number of the PL-RS parameter to be activated and the closed-loop power control number are respectively associated with the same beam state; the number of the PL-RS parameter to be activated and the closed-loop power control number are configured in the same association relationship structure; the association relationship between the beam state parameter to be activated and the closed-loop power control number includes at least one of the following: the number of the beam state parameter to be activated and the closed-loop power control number are associated with each other; the number of the beam state parameter to be activated and the closed-loop power control number are configured in the same association relationship structure.

[0064] In the embodiment of the present invention, for uplink physical shared channel PUSCH transmission, the beam state includes at least one of the following: SRI, or SRI-PUSCH-PowerControl number, TCI state.

[0065] In the embodiment of the present invention, for uplink physical shared channel PUSCH transmission, the association relationship structure includes: SRI-PUSCH-PowerControl number, or TCI state and power control parameter association relationship.

[0066] In the embodiment of the present invention, the closed-loop power control number is determined by SRI-PUSCH-ClosedLoopIndex corresponding to the SRI corresponding to the PL-RS parameter to be activated in the high-level parameter SRI-PUSCH-PowerControl.

[0067] In an embodiment of the present invention, for uplink physical control channel PUCCH transmission, the beam state includes at least one of the following: a spatial relationship of PUCCH, a spatial relationship number of PUCCH, and a TCI state.

[0068] In the embodiment of the present invention, for uplink physical control channel PUCCH transmission, the association relationship structure includes: PUCCH spatial relationship, or TCI state and power control parameter association relationship.

[0069] In the embodiment of the present invention, the closed-loop power control number is determined by the closed-loop power control number corresponding to the PUCCH spatial relationship corresponding to the PL-RS parameters to be activated.

[0070] In an embodiment of the present invention, when at least one of the following conditions is met, the PL corresponding to the updated PL-RS parameter information takes effect after the first time: the total number of configured PL-RS is greater than X, where X is a positive integer, such as 4; the PL-RS parameter to be activated is not an activated PL-RS.

[0071] In the embodiment of the present invention, the beam state corresponding to the updated beam state information takes effect after the second time.

[0072] In an embodiment of the present invention, the first time is determined by at least one of the following: an ACK response to updating PL-RS parameter information; the PL-RS to be activated is sent or received at least K times, where K is an integer greater than or equal to 1; after waiting for T time, where the T time refers to one or more predetermined time units, and the predetermined time unit includes at least one of the following: radio frame, subframe, time slot, symbol, second, millisecond, microsecond.

[0073] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods of various embodiments of the present invention.

[0074] In this embodiment, a parameter resetting device is also provided, which is used to implement the above embodiments and preferred implementations, and the descriptions that have been made will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable. Figure 2 is a schematic diagram of a parameter resetting device according to an embodiment of the present invention, the device comprising:

[0075] The reset module 20 is used to reset the relevant parameters of the closed-loop power control after the PL corresponding to the updated path loss-reference signal PL-RS parameter information takes effect, or after the beam state corresponding to the updated beam state information takes effect.

[0076] It should be noted that the path loss-reference signal PL-RS in the embodiment of the present invention refers to the RS referenced by measuring PL, also called the path loss reference reference signal (Pathloss Reference RS).

[0077] Updating beam state information is also called an indication or update information of a spatial relationship, or an indication or update information of a TCI state.

[0078] In an embodiment of the present invention, after the PL corresponding to the updated path loss-reference signal PL-RS parameter information takes effect, or after the beam state corresponding to the updated beam state information takes effect, the relevant parameters of the closed-loop power control are reset. The above-mentioned technical solution is adopted to solve the problem in the related technology that when the new beam takes effect and the PL of the old beam is still used, the closed-loop power control is likely to accumulate a large negative value, resulting in a sudden drop in the transmission power after the PL of the new beam takes effect. Therefore, the relevant parameters of the closed-loop power control can be reset when the new beam takes effect and the PL of the old beam is still used, thereby avoiding the problem of the closed-loop power control accumulating a large negative value.

[0079] In an embodiment of the present invention, the updated PL-RS parameter information or updated beam state information is carried by one of the following signaling: radio resource control RRC signaling, media access control unit MAC CE, and physical layer signaling.

[0080] In one embodiment of the present invention, the MAC CE carrying the updated PL-RS parameter information refers to the path loss reference RS activation / deactivation MAC CE, including: the path loss reference RS activation / deactivation MAC CE of PUSCH, the path loss reference RS activation / deactivation MAC CE of SRS, or the path loss reference RS activation / deactivation MAC CE of PUCCH.

[0081] In the embodiment of the present invention, the relevant parameters of the closed-loop power control include: a power control adjustment state corresponding to the closed-loop power control number.

[0082] In an embodiment of the present invention, a closed-loop power control number is determined according to the PL-RS parameters to be activated in the updated PL-RS parameter information or the beam state parameters to be activated in the updated beam state information, including: determining the closed-loop power control number according to the number of the PL-RS parameters to be activated; or determining the closed-loop power control number according to the association between the PL-RS parameters to be activated and the closed-loop power control number; or determining the closed-loop power control number according to the beam state number to be activated; or determining the closed-loop power control number according to the association between the beam state parameters to be activated and the closed-loop power control number.

[0083] In an embodiment of the present invention, the association relationship between the PL-RS parameter to be activated and the closed-loop power control number includes at least one of the following: the number of the PL-RS parameter to be activated and the closed-loop power control number are associated with each other; the number of the PL-RS parameter to be activated and the closed-loop power control number are respectively associated with the same beam state; the number of the PL-RS parameter to be activated and the closed-loop power control number are configured in the same association relationship structure; the association relationship between the beam state parameter to be activated and the closed-loop power control number includes at least one of the following: the number of the beam state parameter to be activated and the closed-loop power control number are associated with each other; the number of the beam state parameter to be activated and the closed-loop power control number are configured in the same association relationship structure.

[0084] In the embodiment of the present invention, for uplink physical shared channel PUSCH transmission, the beam state includes at least one of the following: SRI, or SRI-PUSCH-PowerControl number, TCI state.

[0085] In the embodiment of the present invention, for uplink physical shared channel PUSCH transmission, the association relationship structure includes: SRI-PUSCH-PowerControl number, or TCI state and power control parameter association relationship.

[0086] In the embodiment of the present invention, the closed-loop power control number is determined by the SRI-PUSCH-ClosedLoop Index corresponding to the SRI corresponding to the PL-RS parameter to be activated in the high-level parameter SRI-PUSCH-PowerControl.

[0087] In an embodiment of the present invention, for uplink physical control channel PUCCH transmission, the beam state includes at least one of the following: a spatial relationship of PUCCH, a spatial relationship number of PUCCH, and a TCI state.

[0088] In the embodiment of the present invention, for uplink physical control channel PUCCH transmission, the association relationship structure includes: PUCCH spatial relationship, or TCI state and power control parameter association relationship.

[0089] In the embodiment of the present invention, the closed-loop power control number is determined by the closed-loop power control number corresponding to the PUCCH spatial relationship corresponding to the PL-RS parameters to be activated.

[0090] In an embodiment of the present invention, when at least one of the following conditions is met, the PL corresponding to the updated PL-RS parameter information takes effect after the first time: the total number of configured PL-RS is greater than X, where X is a positive integer, for example: 4; the PL-RS parameter to be activated is not an activated PL-RS.

[0091] In an embodiment of the present invention, the first time is determined by at least one of the following: an ACK response to updating PL-RS parameter information; the PL-RS to be activated is sent or received at least K times, where K is an integer greater than or equal to 1; after waiting for T time, where the T time refers to one or more predetermined time units, and the predetermined time unit includes at least one of the following: radio frame, subframe, time slot, symbol, second, millisecond, microsecond.

[0092] In order to solve the problem in the related art that MAC CE updates PL-RS separately for PUSCH, PUCCH, and SRS, and there is no update in a cell grouping manner, resulting in excessive overhead for updating PL-RS, the embodiment of the present invention further provides the following technical solution.

[0093] In this embodiment, a method for receiving parameter information is provided. Figure 3 is a flow chart of a method for receiving parameter information according to an embodiment of the present invention. Figure 3 As shown, the above parameter resetting method process includes the following steps:

[0094] Step S302, receiving updated path loss-reference signal PL-RS parameter information, wherein the updated PL-RS parameter information includes at least one of the following information: a first PL-RS parameter, a second PL-RS parameter, wherein for a predetermined uplink transmission, the first PL-RS parameter is replaced by the second PL-RS parameter.

[0095] Through the above technical solution, updated path loss-reference signal PL-RS parameter information is received, wherein the updated PL-RS parameter information includes at least one of the following information: a first PL-RS parameter, a second PL-RS parameter, wherein, for a predetermined uplink transmission, the first PL-RS parameter is replaced by the second PL-RS parameter, thereby avoiding the problem of excessive overhead in updating the PL-RS.

[0096] In the embodiment of the present invention, the updated PL-RS parameter information is carried by one of the following signaling: radio resource control RRC signaling, media access control unit MAC CE signaling, and physical layer signaling.

[0097] In the embodiment of the present invention, the uplink transmission includes at least one of the following: PUSCH transmission, PUCCH transmission, and SRS transmission.

[0098] In the embodiment of the present invention, the uplink transmission corresponding to the updated PL-RS parameter information is determined by a predetermined method or a configuration method.

[0099] In the embodiment of the present invention, specifically, the predetermined uplink transmission is determined in a predetermined manner or a configuration manner to include at least one of the following: PUSCH transmission, PUCCH transmission, and SRS transmission.

[0100] In the embodiment of the present invention, when the uplink transmission corresponding to the update of the PL-RS parameter information is determined by a configuration method, the configuration method is carried by one of the following signalings: RRC signaling, MAC CE signaling, and physical layer signaling.

[0101] In the embodiment of the present invention, part or all of the association relationship of uplink transmission corresponding to the updated PL-RS parameter information is determined in a predetermined manner or a configuration manner.

[0102] In an embodiment of the present invention, some or all of all association relationships of uplink transmission affected by the updating of PL-RS parameter information are indicated by one of the following methods: a bit map; the N0 with the smallest number in the association relationships; the N1 with the largest number in the association relationships, where N0 and N1 are integers greater than or equal to 1.

[0103] In the embodiment of the present invention, the cell or bandwidth part BWP to which the uplink transmission corresponding to the updated PL-RS parameter information belongs is determined in a predetermined manner or a configuration manner.

[0104] In the embodiment of the present invention, the cell to which the uplink transmission corresponding to the updated PL-RS parameter information belongs includes at least one of the following: a cell related to the transmission resource of the updated PL-RS parameter information, a specific cell, a configured cell, and all activated cells.

[0105] In the embodiment of the present invention, the BWP to which the uplink transmission corresponding to the updated PL-RS parameter information belongs includes: a BWP related to the transmission resource of the PL-RS update information and an activated BWP.

[0106] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods of various embodiments of the present invention.

[0107] In this embodiment, a device for receiving parameter information is also provided. The device is used to implement the above embodiments and preferred implementations. The descriptions that have been made will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable. Figure 4 is a schematic diagram of a structure of a device for receiving parameter information according to an embodiment of the present invention, the device comprising:

[0108] The receiving module 40 is used to receive updated path loss-reference signal PL-RS parameter information, wherein the updated PL-RS parameter information includes at least one of the following information: a first PL-RS parameter, a second PL-RS parameter, wherein for a predetermined uplink transmission, the first PL-RS parameter is replaced by the second PL-RS parameter.

[0109] Through the above technical solution, updated path loss-reference signal PL-RS parameter information is received, wherein the updated PL-RS parameter information includes at least one of the following information: a first PL-RS parameter, a second PL-RS parameter, wherein, for a predetermined uplink transmission, the first PL-RS parameter is replaced by the second PL-RS parameter, thereby avoiding the problem of excessive overhead in updating the PL-RS.

[0110] In the embodiment of the present invention, the updated PL-RS parameter information is carried by one of the following signaling: radio resource control RRC signaling, media access control unit MAC CE signaling, and physical layer signaling.

[0111] In the embodiment of the present invention, the uplink transmission includes at least one of the following: PUSCH transmission, PUCCH transmission, and SRS transmission.

[0112] In the embodiment of the present invention, the uplink transmission corresponding to the updated PL-RS parameter information is determined by a predetermined method or a configuration method.

[0113] In the embodiment of the present invention, specifically, the predetermined uplink transmission is determined in a predetermined manner or a configuration manner to include at least one of the following: PUSCH transmission, PUCCH transmission, and SRS transmission.

[0114] In the embodiment of the present invention, when the uplink transmission corresponding to the update of the PL-RS parameter information is determined by a configuration method, the configuration method is carried by one of the following signalings: RRC signaling, MAC CE signaling, and physical layer signaling.

[0115] In the embodiment of the present invention, part or all of the association relationship of uplink transmission corresponding to the updated PL-RS parameter information is determined in a predetermined manner or a configuration manner.

[0116] In an embodiment of the present invention, some or all of all association relationships of uplink transmission affected by the updating of PL-RS parameter information are indicated by one of the following methods: a bit map; the N0 with the smallest number in the association relationships; the N1 with the largest number in the association relationships, where N0 and N1 are integers greater than or equal to 1.

[0117] In the embodiment of the present invention, the cell or bandwidth part BWP to which the uplink transmission corresponding to the updated PL-RS parameter information belongs is determined in a predetermined manner or a configuration manner.

[0118] In the embodiment of the present invention, the cell to which the uplink transmission corresponding to the updated PL-RS parameter information belongs includes at least one of the following: a cell related to the transmission resource of the updated PL-RS parameter information, a specific cell, a configured cell, and all activated cells.

[0119] In the embodiment of the present invention, the BWP to which the uplink transmission corresponding to the updated PL-RS parameter information belongs includes: a BWP related to the transmission resource of the PL-RS update information and an activated BWP.

[0120] In this embodiment, a parameter processing method is provided. Figure 5 is a flow chart of a parameter processing method according to an embodiment of the present invention. Figure 5 As shown, the above parameter resetting method process includes the following steps:

[0121] Step S502: After the second PL-RS parameter in the updated PL-RS parameter information takes effect, the first PL-RS parameter associated with the uplink transmission is replaced by the second PL-RS parameter.

[0122] In an embodiment of the present invention, after the second PL-RS parameter in the updated PL-RS parameter information takes effect, the first PL-RS parameter associated with the uplink transmission is replaced by the second PL-RS parameter. The above technical solution is adopted to solve the problem in the related art that when the new beam takes effect and the PL of the old beam is still used, the closed-loop power control is likely to accumulate a large negative value, resulting in a sudden drop in the transmission power after the PL of the new beam takes effect. Therefore, the problem of closed-loop power control accumulating a large negative value can be avoided when the new beam takes effect and the PL of the old beam is still used.

[0123] The technical solution of the embodiment of the present invention can be understood as follows: Figure 7At time t1, the new PL-RS second PL-RS takes effect, but its high-layer filtered PL has not yet taken effect; the PL corresponding to the new PL-RS takes effect at time t2.

[0124] It should be noted that the attached Figure 7 The TPC in it is the abbreviation of transmit power control.

[0125] That is, the first PL-RS parameter is the old PL-RS parameter originally associated with the uplink transmission. After receiving the updated PL-RS parameter information, when the second PL-RS parameter (new PL-RS parameter) in the updated PL-RS parameter information takes effect, the PL-RS parameter associated with the uplink transmission is replaced by the second PL-RS parameter in the updated PL-RS parameter information.

[0126] In an embodiment of the present invention, after the second PL-RS parameter takes effect, the method further includes: determining the PL value of the uplink transmission according to the PL value of the first PL-RS parameter associated with the uplink transmission; or determining the PL value of the uplink transmission according to the L1-PL value of the second PL-RS parameter; or determining the PL value of the uplink transmission according to the PL value of the first PL-RS parameter associated with the uplink transmission and the L1-PL value of the second PL-RS parameter.

[0127] In the embodiment of the present invention, after the second PL-RS parameter takes effect, the method further includes: determining the PL value of the uplink transmission according to the L1-PL value of the first PL-RS parameter associated with the uplink transmission and the L1-PL value of the second PL-RS parameter.

[0128] In an embodiment of the present invention, the method also includes: the PL value of the first PL-RS parameter associated with the uplink transmission includes: the PL value of the first PL-RS parameter associated with the uplink transmission when or before the second PL-RS parameter in the updated PL-RS parameter information takes effect; the L1-PL value of the first PL-RS parameter associated with the uplink transmission includes: at least one L1-PL value of at least one RS sample of the first PL-RS parameter associated with the uplink transmission when or before the second PL-RS parameter in the updated PL-RS parameter information takes effect.

[0129] In the embodiment of the present invention, when or before the second PL-RS parameter in the updated PL-RS parameter information takes effect, the PL value of the first PL-RS parameter associated with uplink transmission is a fixed value.

[0130] In an embodiment of the present invention, the PL value of the uplink transmission is determined according to one or more L1-PL values ​​of the first PL-RS parameter associated with the uplink transmission before the second PL-RS parameter in the updated PL-RS parameter information takes effect and one or more L1-PL values ​​of the second PL-RS parameter when or after the second PL-RS parameter in the updated PL-RS parameter information takes effect after high-layer filtering.

[0131] It should be noted that the L1-PL refers to the path loss value of layer 1, and also refers to the path loss value of the physical layer. This value is determined by measuring the difference between the transmit power of the reference signal (PL-RS) of the PL and the RSRP of the PL-RS of layer 1 (L1).

[0132] The PL value refers to the path loss value, which is generally L3-PL, i.e. the path loss value of layer 3, or the path loss value of high-layer filtering. This value is determined by the difference between the transmit power of the reference signal (PL-RS) measuring the PL and the RSRP (Reference Signal Receiving Power) of the high-layer filtering.

[0133] In an embodiment of the present invention, the second PL-RS parameter in the updated PL-RS parameter information takes effect after the second time; or the PL of the second PL-RS parameter in the updated PL-RS parameter information takes effect after the first time; or after the PL value of the second PL-RS parameter in the updated PL-RS parameter information takes effect, the PL value of the uplink transmission is determined according to the PL value of the second PL-RS parameter.

[0134] In an embodiment of the present invention, the first time is determined by at least one of the following: an ACK response to updating PL-RS parameter information; the PL-RS to be activated is sent or received at least K times, where K is an integer greater than or equal to 1; after waiting for T time, where the T time refers to one or more predetermined time units, and the predetermined time unit includes at least one of the following: radio frame, subframe, time slot, symbol, second, millisecond, microsecond.

[0135] It should be noted that the attached Figure 7 The t1 moment is determined by the second time, and the t2 moment is determined by the first time.

[0136] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods of various embodiments of the present invention.

[0137] In this embodiment, a parameter processing device is also provided, which is used to implement the above embodiments and preferred implementations, and will not be repeated here. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and conceivable. Figure 6 is a schematic diagram of the structure of a parameter processing device according to an embodiment of the present invention, the device comprising:

[0138] The processing module 60 is configured to replace the first PL-RS parameter associated with uplink transmission with the second PL-RS parameter after the second PL-RS parameter in the updated PL-RS parameter information takes effect.

[0139] In an embodiment of the present invention, when the second PL-RS parameter in the updated PL-RS parameter information takes effect, the first PL-RS parameter associated with the uplink transmission is replaced by the second PL-RS parameter. The above technical solution is adopted to solve the problem in the related art that when the new beam takes effect and the PL of the old beam is still used, the closed-loop power control is likely to accumulate a large negative value, resulting in a sudden drop in the transmission power after the PL of the new beam takes effect. Therefore, the relevant parameters of the closed-loop power control can be reset when the new beam takes effect and the PL of the old beam is still used, thereby avoiding the problem of closed-loop power control accumulating a large negative value.

[0140] That is, the first PL-RS parameter is the old PL-RS parameter originally associated with the uplink transmission. After receiving the updated PL-RS parameter information, when the second PL-RS parameter (new PL-RS parameter) in the updated PL-RS parameter information takes effect, the PL-RS parameter associated with the uplink transmission is replaced by the second PL-RS parameter in the updated PL-RS parameter information.

[0141] In an embodiment of the present invention, after the second PL-RS parameter takes effect, the method further includes: determining the PL value of the uplink transmission according to the PL value of the first PL-RS parameter associated with the uplink transmission; or determining the PL value of the uplink transmission according to the L1-PL value of the second PL-RS parameter; or determining the PL value of the uplink transmission according to the PL value of the first PL-RS parameter associated with the uplink transmission and the L1-PL value of the second PL-RS parameter.

[0142] In the embodiment of the present invention, after the second PL-RS parameter takes effect, the method further includes: determining the PL value of the uplink transmission according to the L1-PL value of the first PL-RS parameter associated with the uplink transmission and the L1-PL value of the second PL-RS parameter.

[0143] In an embodiment of the present invention, the method also includes: the PL value of the first PL-RS parameter associated with the uplink transmission includes: the PL value of the first PL-RS parameter associated with the uplink transmission when or before the second PL-RS parameter in the updated PL-RS parameter information takes effect; the L1-PL value of the first PL-RS parameter associated with the uplink transmission includes: at least one L1-PL value of at least one RS sample of the first PL-RS parameter associated with the uplink transmission when or before the second PL-RS parameter in the updated PL-RS parameter information takes effect.

[0144] In the embodiment of the present invention, when or before the second PL-RS parameter in the updated PL-RS parameter information takes effect, the PL value of the first PL-RS parameter associated with uplink transmission is a fixed value.

[0145] In an embodiment of the present invention, the PL value of the uplink transmission is determined according to one or more L1-PL values ​​of the first PL-RS parameter associated with the uplink transmission before the second PL-RS parameter in the updated PL-RS parameter information takes effect and one or more L1-PL values ​​of the second PL-RS parameter when or after the second PL-RS parameter in the updated PL-RS parameter information takes effect after high-layer filtering.

[0146] It should be noted that the L1-PL refers to the path loss value of layer 1, and also refers to the path loss value of the physical layer. This value is determined by measuring the difference between the transmit power of the reference signal (PL-RS) of the PL and the RSRP of the PL-RS of layer 1 (L1).

[0147] The PL value refers to the path loss value, which is generally L3-PL, i.e. the path loss value of layer 3, or the path loss value of high-layer filtering. This value is determined by the difference between the transmit power of the reference signal (PL-RS) measuring the PL and the RSRP (Reference Signal Receiving Power) of the high-layer filtering.

[0148] In an embodiment of the present invention, the second PL-RS parameter in the updated PL-RS parameter information takes effect after the second time; or the PL of the second PL-RS parameter in the updated PL-RS parameter information takes effect after the first time; or after the PL value of the second PL-RS parameter in the updated PL-RS parameter information takes effect, the PL value of the uplink transmission is determined according to the PL value of the second PL-RS parameter.

[0149] In order to better understand the parameter resetting process and the parameter information receiving process in the above embodiment, the above technical solution is explained below with reference to examples, but is not intended to limit the technical solution of the embodiment of the present invention.

[0150] Example 1: Closed-loop power control reset

[0151] In the related art, when the communication beam between the base station and the UE changes, the beam state can be updated through the MAC CE. For uplink transmission, the path loss value for determining the transmit power is measured by the downlink RS. When the communication beam between the base station and the UE changes, the path loss measurement parameters can also be updated through the MAC CE, where the path loss is also called path loss (PL for short); the path loss measurement parameters, including the RS indication information for measuring PL, can also be abbreviated as PL-RS parameters.

[0152] The beam state includes at least one of the following: quasi-co-site QCL state, transmission configuration indication TCI state, spatial relationship information, reference signal information (for example, SRI, SRS resource Indicator), spatial filter information, and precoding information.

[0153] When the communication beam between the base station and the UE changes, the MAC CE needs to update the beam status of subsequent transmissions and also needs to update the PL-RS parameters related to subsequent uplink transmissions.

[0154] Generally, the effective time of MAC CE information is a period of time T0 after the UE receives the MAC CE information, feeds back the ACK information to the base station, and sends the uplink transmission containing the ACK information. The MAC CE information becomes effective after that. T0 can be 3ms, or 3 slots, 3 subframes, etc. However, the effective time of MAC CE updating PL has its particularity, because PL is the measurement result of L3 (layer 3, high layer). When updating to a PL-RS parameter that has not been activated before, multiple PL-RS measurement results are required to be filtered to obtain a more reliable PL value. Therefore, the effective time of MAC CE updating PL-RS is later than the effective time of general MAC CE. Therefore, the effective time of MAC CE updating PL-RS is delayed by the time required to send K PL-RS after the effective time of the above MAC CE.

[0155] like Figure 7 As shown, it is assumed that at time t1, MAC CE updates the beam state and takes effect, and at time t2, MAC CE updates the PL-RS and takes effect. After time t1, the transmission uses the new beam state to determine the transmission mode, such as the transmission beam, precoding parameters, etc. After time t2, the PL-RS corresponding to the new beam state can take effect. The old beam state is represented by beam1, and the new beam state is represented by beam2. The PL value of the new beam state beam2 is smaller than the PL value of the old beam state beam1. Between time t1 and time t2, the transmission uses the new beam state beam2, and the PL value that matches it should be used. However, since the PL value of beam2 has not stabilized, it has not taken effect, so only the PL value of beam1 can be used. Therefore, the PL of the actual transmission link is small, and the PL value used by the UE when determining the transmit power of the uplink transmission is too large (larger than the actual value). Therefore, it can be predicted that from time t1 to time t2, the base station will lower the transmit power of the uplink transmission through the closed-loop power control TPC command. Assuming that at time t2, the UE has completely compensated the difference in PL between beam1 and beam2 through the cumulative effect of several negative TPC commands, or achieved a certain degree of compensation, then at time t2, when the PL value of beam2 takes effect, the closed-loop power control part of the UE (i.e., power control adjustment state) is expected to be a large negative value. Originally, the PL value of beam2 should have been matched with beam2 as the actual transmitted beam at time t2, but at this time, the closed-loop power control part of the UE reflects the accumulation of historical TPC commands and is expected to have a large negative value, which will have a negative impact on the power after the PL is switched at time t2. It is very likely that the transmit power calculated by the UE is lower than the required power of the actual link.

[0156] In an optional embodiment of the present invention, after the PL corresponding to the information for updating the PL-RS parameters takes effect, the closed-loop power control related parameters are reset.

[0157] Furthermore, the information for updating the PL-RS parameters is carried by one of the following signalings: RRC signaling, MAC CE, and physical layer signaling.

[0158] The following takes the information of updating PL-RS parameters carried by MAC CE as an example.

[0159] The PL corresponding to the MAC CE carrying the updated PL-RS parameters takes effect, including:

[0160] When at least one of the following conditions is met, the PL corresponding to the new PL-RS takes effect after the first time: the total number of configured PL-RS is X or more, where X is a positive integer, such as 4; the new PL-RS is not an activated PL-RS

[0161] The first time is determined by at least one of the following methods: replying an ACK response after receiving a MAC CE for updating the PL-RS; waiting for the new PL-RS to be sent K times; K is an integer greater than or equal to 1, such as 5. After waiting for T time. T time refers to one or more predetermined time units, and the predetermined time unit includes one of the following: radio frame, subframe, time slot, symbol (i.e., OFDM symbol), second, millisecond, microsecond. For example, T time is 2 milliseconds, 3 subframes.

[0162] Examples of the first-time determination method: Figure 8 As shown, after receiving the MAC CE carrying the updated PL-RS parameters and the updated beam status, the UE responds to HARQ-ACK, and then 3 subframes later, the updated beam status takes effect, that is, the new beam takes effect, but after a period of time, for example, the RS corresponding to 5 updated PL-RS parameters is sent at least 5 times, and then waits for T time, for example 2 milliseconds, the PL corresponding to the updated PL-RS parameters takes effect.

[0163] Furthermore, the closed-loop power control related parameters include: a power control adjustment state corresponding to a closed-loop power control number corresponding to the new PL-RS parameter.

[0164] Further, the closed-loop power control number is determined according to the new PL-RS parameter, including: determining the closed-loop power control number according to the new PL-RS parameter number, or determining the closed-loop power control number according to the association between the new PL-RS parameter and the closed-loop power control number.

[0165] The association relationship between the PL-RS parameter and the closed-loop power control number includes one of the following: the PL-RS parameter number and the closed-loop power control number are associated; the PL-RS parameter number and the closed-loop power control number are respectively associated with the same beam state; the PL-RS parameter number and the closed-loop power control number are configured in the same association relationship structure.

[0166] For PUSCH transmission, the beam status includes: SRI, or SRI-PUSCH-PowerControl number, TCI status.

[0167] For PUSCH transmission, the association structure includes: SRI-PUSCH-PowerControl, or the association between TCI state and power control parameters.

[0168] Specifically, the closed loop ID is determined by the sri-PUSCH-ClosedLoopIndex corresponding to the SRI corresponding to the updated PL-RS in the high-level parameter SRI-PUSCH-PowerControl.

[0169] The SRI corresponding to the updated PL-RS refers to the SRI included in the MAC CE of the updated PL-RS.

[0170] In another optional embodiment of the embodiment of the present invention, after the beam state corresponding to the information for updating the beam state takes effect, the closed-loop power control related parameters are reset.

[0171] Furthermore, the information for updating the beam status is carried by one of the following signaling: RRC signaling, MAC CE, and physical layer signaling.

[0172] The following takes MAC CE carrying information on updating beam status as an example.

[0173] The beam state corresponding to the MAC CE that carries the information for updating the beam state takes effect, including:

[0174] The updated beam state takes effect after the second time when at least one of the following conditions is met:

[0175] The second time is determined by at least one of the following methods: replying an ACK response after receiving a MAC CE for updating the beam state; waiting for T time. T time refers to one or more predetermined time units, and the predetermined time unit includes one of the following: radio frame, subframe, time slot, symbol (i.e., OFDM symbol), second, millisecond, microsecond. For example, T time is 2 milliseconds, 3 subframes.

[0176] Examples of ways to determine the second time: Figure 8 As shown, after receiving the MAC CE carrying the updated beam status, the UE responds with HARQ-ACK, and then after 3 subframes, the updated beam status takes effect.

[0177] Furthermore, the closed-loop power control related parameters include: a power control adjustment state corresponding to a closed-loop power control number corresponding to the updated beam state.

[0178] Further, the closed-loop power control number is determined according to the updated beam state, including: determining the closed-loop power control number according to the updated beam state number, or determining the closed-loop power control number according to the association between the updated beam state and the closed-loop power control number.

[0179] The association relationship between the beam state and the closed-loop power control number includes one of the following: the beam state number and the closed-loop power control number are associated; the beam state number and the closed-loop power control number are configured in the same association relationship structure.

[0180] The association between the beam state of uplink transmission and the spatial relationship is configured by MAC CE, and / or the association between the beam state and PL-RS is configured by MAC CE, and the closed-loop power control related parameters of the uplink transmission with reference to the beam state are reset.

[0181] Furthermore, the association between the beam state of uplink transmission and the spatial relationship is configured by MAC CE, and / or the association between the beam state and PL-RS is configured by MAC CE. After the beam state corresponding to the information of updating the beam state takes effect, the closed-loop power control related parameters of the uplink transmission referring to the beam state are reset.

[0182] Furthermore, the association between the beam state of uplink transmission and the spatial relationship is configured by MAC CE, and / or the association between the beam state and PL-RS is configured by MAC CE. After the PL corresponding to the PL-RS corresponding to the information updating the beam state takes effect, the closed-loop power control related parameters of the uplink transmission referring to the beam state are reset.

[0183] For example, in Figure 7 In the example, the new beam state takes effect at time t1, but the PL corresponding to the new beam state has not taken effect yet, resulting in a mismatch between the beam state and the PL between t1 and t2. A method for solving this problem also includes using a smoothly transitioned PL value for uplink transmission between time t1 and time t2 to prevent or mitigate a sudden drop in performance caused by the closed-loop power control accumulation (power control adjustment state) caused by switching the PL value at time t2.

[0184] Before time t1, the PL of the uplink transmission is determined according to the PL of the old PL-RS associated with the uplink transmission;

[0185] After time t2, the PL of the uplink transmission is determined according to the PL of the new PL-RS associated with the uplink transmission;

[0186] Between t1 and t2, the PL of the uplink transmission is determined according to one of the following:

[0187] PL of the old PL-RS associated with uplink transmission;

[0188] L1-PL of the new PL-RS associated with uplink transmission;

[0189] a higher layer filtered PL value of at least one L1-PL of a new PL-RS associated with uplink transmission;

[0190] a high-layer filtered PL value of at least one L1-PL of an old PL-RS associated with uplink transmission and a new PL-RS associated with uplink transmission;

[0191] A high-layer filtered PL value of at least one L1-PL of an old PL-RS associated with uplink transmission and at least one L1-PL of a new PL-RS associated with uplink transmission.

[0192] The PL of the old PL-RS associated with the uplink transmission is the PL value of the old PL-RS associated with the uplink transmission at time t1 or before time t1;

[0193] At least one L1-PL of an old PL-RS associated with uplink transmission is an L1-PL value corresponding to at least one RS sample of an old PL-RS associated with uplink transmission before time t1.

[0194] At least one L1-PL of the new PL-RS associated with uplink transmission is an L1-PL value corresponding to at least one RS sample of the new PL-RS associated with uplink transmission at time t1 and after time t1.

[0195] In one embodiment of the present invention, in an optional embodiment of the present invention, the updated PL-RS parameter information still only includes one PL-RS information, but in order to distinguish the new PL-RS from the original old PL-RS, the second PL-RS parameter and the first PL-RS are used.

[0196] Example 2: Method for fast updating of PL-RS

[0197] It should be noted that the base station ensures that the number of activated PL-RS is not greater than a predetermined value.

[0198] The base station configures a PL-RS parameter pool for the UE through RRC signaling, wherein the pool includes at least one PL-RS parameter.

[0199] The base station also configures PL-RS parameters of uplink channels and signals for the UE through RRC signaling, and the number of different PL-RSs does not exceed a predetermined value, for example, 4.

[0200] The base station may update the PL-RS parameters for uplink transmission of the UE through MAC signaling (ie, MAC CE).

[0201] When the uplink transmission is PUSCH transmission, the MAC signaling indicates the beam state information of the PUSCH, such as SRI, and the association with the PL-RS;

[0202] When the uplink transmission is PUCCH transmission, the MAC signaling indicates the beam state information of the PUCCH, such as the spatial-relation of the PUCCH and the association with the PL-RS;

[0203] When the uplink transmission is SRS transmission, the MAC signaling indicates the beam state information of the SRS, such as the association of the SRS resource set and the PL-RS.

[0204] The base station ensures that the number of activated PL-RS is not greater than a predetermined value. For example, there are originally 4 activated PL-RSs, identified by PL-RS ID 1 to 4. At a certain moment, PL-RS ID 5 needs to be activated, so at least one of PL-RS ID 1 to 4 needs to be deactivated. Assuming that PL-RS ID 1 is deactivated, the base station needs to re-associate the uplink transmission previously associated with PL-RS ID1 to a new PL-RS set, such as PL-RS ID 2 to 5. The base station uses this to maintain the number of PL-RSs in the UE's activated state to be no greater than a predetermined value.

[0205] The overhead of MAC CE in related technologies is large. When the communication link changes and the beam needs to be switched, it is very likely that the PL-RS parameters of the uplink transmission will also need to be changed. In the existing related technologies, it is necessary to use MAC CE to update the PL-RS parameters for different transmissions. For example, for the affected PUSCH transmission, a new PL-RS is configured for one or more SRIs through MAC CE, including not only the newly activated PL-RS parameters, but also the deactivated PL-RS parameters. For PUCCH, one or more MAC CEs may also be required to change the PL-RS parameters for the spatial relationship (group) of one or more PUCCHs. For SRS, one or more MAC CEs may also be required to change the PL-RS parameters for one or more SRS resource sets.

[0206] In addition, when different MAC CEs are sent at different times and the corresponding PL-RSs are consistent, the effective delays of the parameters of the PL-RSs updated by different MAC CEs are different (the effective time points may be the same or different).

[0207] Furthermore, in a carrier aggregation scenario, the actual beams corresponding to the same beam state of uplink transmission between multiple CCs (component carriers) may be different. For example, the beam of SRI1 of PUSCH of CC1 may be different from the beam of SRI1 of PUSCH of CC2. Therefore, it is not easy to uniformly update the PL-RS parameters of a certain beam state for multiple CCs.

[0208] In an optional embodiment of the present invention, the base station sends PL-RS parameter update information to the UE to update the PL-RS parameters of uplink transmission.

[0209] The PL-RS parameter update information includes the following information: a first PL-RS parameter, a second PL-RS parameter. For a scheduled uplink transmission, the first PL-RS parameter is replaced by the second PL-RS parameter.

[0210] The PL-RS parameter update information is carried by one of the following signaling: RRC signaling, MAC CE signaling, and physical layer signaling.

[0211] The uplink transmission includes at least one of the following: PUSCH transmission, PUCCH transmission, and SRS transmission.

[0212] The uplink transmission corresponding to the PL-RS update information is determined in a predetermined manner or in a configured (indicated) manner.

[0213] Specifically, it is determined in a predetermined manner or a configured (indicated) manner that the predetermined uplink transmission includes one, multiple, or all of PUSCH transmission, PUCCH transmission, or SRS transmission.

[0214] When the uplink transmission corresponding to the PL-RS update information is determined by configuration, the predetermined uplink transmission includes one, multiple, or all of PUSCH transmission, PUCCH transmission, or SRS transmission. The configuration (indication) information is carried by one of the following signaling: RRC signaling, MAC CE signaling, and physical layer signaling.

[0215] For example, the PL-RS update information indicated by the MAC CE is only used for PUSCH transmission. Then the association relationship between the beam state of PUSCH transmission and the PL-RS parameters that is the same as the first PL-RS parameter contained in the MAC CE is replaced with the second PL-RS parameter. Assume that the association relationship between the beam state of PUSCH transmission and the PL-RS parameters includes: Association relationship 1: SRI0 is associated with PL-RS0; Association relationship 2: SRI1 is associated with PL-RS1; Association relationship 3: SRI2 is associated with PL-RS2. The first PL-RS contained in the MAC CE for updating the PL-RS received by the UE is PL-RS1, and the second PL-RS is PL-RS4. The result of the MAC CE updating the PL-RS is: Association relationship 2 becomes: SRI1 is associated with PL-RS4.

[0216] For another example, the PL-RS update information indicated by the MAC CE is used for PUSCH transmission, PUCCH transmission, and SRS transmission. Assume that the association relationship between the beam state of PUSCH transmission and the PL-RS parameters includes: PUSCH association relationship 1: SRI0 is associated with PL-RS0; PUSCH association relationship 2: SRI1 is associated with PL-RS1; PUSCH association relationship 3: SRI2 is associated with PL-RS2. The association relationship between the beam state of PUCCH transmission and PL-RS includes: PUCCH association relationship 1: PUCCH spatial relationship 0 is associated with PL-RS0; PUCCH association relationship 2: PUCCH spatial relationship 1 is associated with PL-RS1. The association between SRS and PL-RS includes: SRS association relationship 1: SRS resource set 0 is associated with PL-RS0; SRS association relationship 2: SRS resource set 1 is associated with PL-RS1. The first PL-RS included in the MAC CE for updating the PL-RS received by the UE is PL-RS1, and the second PL-RS is PL-RS4. The result of the MAC CE updating PL-RS is: PUSCH association relationship 2: SRI1 is associated with PL-RS4; PUCCH association relationship 2: PUCCH spatial relationship 1 is associated with PL-RS4; SRS association relationship 2: SRS resource set 1 is associated with PL-RS4, and other association relationships remain unchanged.

[0217] Furthermore, a partial or complete association relationship of uplink transmission corresponding to the PL-RS update information is determined in a predetermined manner or a configured manner.

[0218] Further, part or all of all associations of uplink transmissions affected by the PL-RS update information are indicated by one of the following methods: a bitmap; the smallest numbered N0 in the associations; the largest numbered N1 in the associations, where N0 and N1 are integers greater than or equal to 1.

[0219] For example, assume that the association relationship between the beam state of PUSCH transmission and the PL-RS parameters includes: PUSCH association relationship 1: SRI0 is associated with PL-RS0; PUSCH association relationship 2: SRI1 is associated with PL-RS1; PUSCH association relationship 3: SRI2 is associated with PL-RS2.

[0220] When some or all of the associations of all uplink transmissions affected by PL-RS update information are indicated by a bitmap, the effective length of the bitmap is 3, which respectively indicates whether PUSCH associations 1 to 3 are affected by PL-RS update information. For example, bitmap 010 indicates that PUSCH association 2 will be affected by PL-RS update information, that is, when the first PL-RS parameter in the PL-RS update information is the same as the PL-RS parameter in PUSCH association 2, the PL-RS parameter in PUSCH association 2 is updated to the second PL-RS parameter. PUSCH associations 1 and 3 are not affected.

[0221] When some or all of the associations of all uplink transmissions affected by the PL-RS update information are indicated by the smallest number N0 in the association, for example, when N0 is 1, that is, the first PL-RS parameter in the PL-RS update information is the same as the PL-RS parameter in the PUSCH association 1, the PL-RS parameter in the PUSCH association 1 is updated to the second PL-RS parameter. PUSCH associations 2 and 3 are not affected.

[0222] The cell (also called carrier) or BWP (bandwidth part) to which the uplink transmission corresponding to the PL-RS update information belongs is determined in a predetermined manner or in a configured manner.

[0223] The cells to which the uplink transmission corresponding to the PL-RS update information belongs include: cells (groups) related to the transmission resources of the PL-RS update information, specific cells (groups), configured cells (groups), or all activated cells.

[0224] The cell (group) related to the transmission resource of the PL-RS update information includes: the cell (group) where the transmission resource of the PL-RS update information is located, or the uplink cell (group) corresponding to the cell where the transmission resource of the PL-RS update information is located.

[0225] The specific cells (groups) include: primary cell, primary cell group, PUCCH cell, PUCCH cell group, the cell with the smallest number, the cell with the largest number, the activated cell with the smallest number, and the activated cell with the largest number.

[0226] The configured cell (group) refers to the cell number configured by the base station to the UE, or related information of the cell number list, which is used to indicate the cell to which the uplink transmission corresponding to the PL-RS update information belongs.

[0227] The BWP to which the uplink transmission corresponding to the PL-RS update information belongs includes: a BWP related to the transmission resource of the PL-RS update information and an activated BWP.

[0228] The BWP related to the transmission resource of the PL-RS update information includes: the BWP where the transmission resource of the PL-RS update information is located, or the uplink BWP corresponding to the BWP where the transmission resource of the PL-RS update information is located.

[0229] According to another aspect of the embodiments of the present invention, a storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0230] In one embodiment of the present invention, in this embodiment, the above storage medium may be configured to store a computer program for performing the following steps:

[0231] S1, after the PL corresponding to the updated path loss-reference signal PL-RS parameter information takes effect, or after the beam state corresponding to the updated beam state information takes effect, reset the relevant parameters of the closed-loop power control.

[0232] In this embodiment, a person of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the hardware related to the terminal device through a program, and the program can be stored in a computer-readable storage medium, and the storage medium may include: a flash drive, a ROM (Read-Only Memory), a RAM (Random Access Memory), a disk or an optical disk, etc.

[0233] In this embodiment, a person of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the hardware related to the terminal device through a program, and the program can be stored in a computer-readable storage medium, and the storage medium may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0234] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0235] If the integrated units in the above embodiments are implemented in the form of software functional units and sold or used as independent products, they can be stored in the above computer-readable storage medium. Based on such understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling one or more computer devices (which can be personal computers, servers or network devices, etc.) to perform all or part of the steps of the methods of various embodiments of the present invention.

[0236] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0237] In the several embodiments provided in the present application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0238] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0239] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0240] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A parameter resetting method, characterized in that: include: After the PL corresponding to the updated path loss-reference signal PL-RS parameter information takes effect, the relevant parameters of the closed-loop power control are reset; The updated PL-RS parameter information is carried by the media access control unit MAC CE signaling; the relevant parameters of the closed-loop power control include: the power control adjustment state corresponding to the closed-loop power control number; When the following conditions are met, the PL corresponding to the updated PL-RS parameter information takes effect after the first time: the total number of configured PL-RSs is greater than X and the PL-RS parameters to be activated are not activated PL-RSs, where X is a positive integer.

2. The method according to claim 1, characterized in that The updated PL-RS parameter information is carried by one of the following signalings: radio resource control RRC signaling, physical layer signaling.

3. The method according to claim 1, characterized in that Determining a closed-loop power control number according to the PL-RS parameter to be activated in the updated PL-RS parameter information includes: Determine the closed-loop power control number according to the number of the PL-RS parameter to be activated; or Determine the closed-loop power control number according to the association relationship between the PL-RS parameter to be activated and the closed-loop power control number; or Determine the closed-loop power control number according to the beam state number to be activated; or The closed-loop power control number is determined according to the association relationship between the beam state parameter to be activated and the closed-loop power control number.

4. The method according to claim 3, characterized in that The association relationship between the PL-RS parameter to be activated and the closed-loop power control number includes at least one of the following: The number of the PL-RS parameter to be activated is associated with the closed-loop power control number; The number of the PL-RS parameter to be activated and the closed-loop power control number are respectively associated with the same beam state; The number of the PL-RS parameter to be activated and the closed-loop power control number are configured in the same association relationship structure; The association relationship between the beam state parameter to be activated and the closed-loop power control number includes at least one of the following: The number of the beam state parameter to be activated is associated with the closed-loop power control number; The number of the beam state parameter to be activated and the closed-loop power control number are configured in the same association relationship structure.

5. The method according to claim 4, characterized in that For uplink physical shared channel PUSCH transmission, the beam state includes at least one of the following: SRI, or SRI-PUSCH-PowerControl number, TCI state.

6. The method according to claim 4, characterized in that The association relationship structure includes: an association relationship between a SRI-PUSCH-PowerControl number or a TCI state and a power control parameter.

7. The method according to claim 4, characterized in that For uplink physical control channel PUCCH transmission, the beam state includes at least one of the following: PUCCH spatial relationship, PUCCH spatial relationship number, TCI state; wherein, for uplink physical control channel PUCCH transmission, the association relationship structure includes: PUCCH spatial relationship, or TCI state and power control parameter association relationship.

8. The method according to claim 4, characterized in that The closed-loop power control number is determined by the closed-loop power control number corresponding to the PUCCH spatial relationship corresponding to the PL-RS parameters to be activated.

9. The method according to claim 1, characterized in that: The beam state corresponding to the updated beam state information takes effect after the second time.

10. The method according to claim 9, characterized in that The first time is determined by at least one of the following: ACK response to the update of PL-RS parameter information; The PL-RS to be activated sends or receives at least K times, where K is an integer greater than or equal to 1; After waiting for T time, wherein the T time refers to one or more predetermined time units, and the predetermined time unit includes at least one of the following: radio frame, subframe, time slot, symbol, second, millisecond, microsecond; The second time is determined by at least one of the following: After receiving the MAC CE that updates the beam status, it replies with an ACK response; Wait for T time.

11. A parameter resetting device, characterized in that: include: A reset module, used to reset the relevant parameters of the closed-loop power control after the PL corresponding to the updated path loss-reference signal PL-RS parameter information takes effect; The updated PL-RS parameter information is carried by the media access control unit MAC CE signaling; the relevant parameters of the closed-loop power control include: the power control adjustment state corresponding to the closed-loop power control number; When the following conditions are met, the PL corresponding to the updated PL-RS parameter information takes effect after the first time: the total number of configured PL-RSs is greater than X and the PL-RS parameters to be activated are not activated PL-RSs, where X is a positive integer.

12. A computer-readable storage medium, the computer-readable storage medium comprising a stored program, wherein: When the program is executed by a processor, the method described in any one of claims 1 to 10 is executed.

Images