Method and device for determining transmitting power

Abstract

The embodiment of the invention provides a method and device for determining transmitting power, and relates to the technical field of communication. The method comprises the following steps: acquiring respective current transmitting power of a plurality of transmitting and receiving points, wherein the current transmitting power of each transmitting and receiving point is determined based on the strength of a reference signal sent by a terminal served by the transmitting and receiving points; for each terminal, determining respective reference transmitting power of at least two transmitting and receiving points according to respective current transmitting power of the at least two transmitting and receiving points of the service terminal in the plurality of transmitting and receiving points; according to the at least one reference transmitting power of each transmitting and receiving point, the target transmitting power of each transmitting and receiving point is determined, and the target transmitting power is used for the transmitting and receiving point to send a signal to a serving terminal based on the target transmitting power, so that the target transmitting power of each TPR can be accurately determined; and the plurality of TPRs can send signals to the terminals served by the TPRs based on the respective target transmission powers.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method and device for determining transmission power. Background Art

[0002] In a traditional cellular communication network, physical resource configuration, such as transmission power, is usually performed with a base station as an anchor point, so that the base station transmits a signal based on the transmission power.

[0003] However, with the development of technologies such as distributed antennas, the Transmission Reception Point (TRP) may be used as a new anchor point to determine its transmission power due to its distributed characteristics and flexible on-demand deployment, so that the TRP can transmit signals to the terminals it serves based on the determined transmission power.

[0004] In future multi-TPR collaborative transmission scenarios, how to determine the transmission power of each of the multiple TPRs so that the TRP can send signals to the served terminal based on the determined transmission power is an issue that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The embodiments of the present application provide a method and apparatus for determining transmit power, which can accurately determine the target transmit power of each of a plurality of TPRs, so that the plurality of TPRs can send signals to the terminals they serve based on the respective target transmit powers.

[0006] In a first aspect, an embodiment of the present application provides a method for determining transmit power, which is applied to a centralized unit, and the method includes:

[0007] The current transmission power of each of the multiple transmission and reception points sent by the receiving distribution unit is determined based on the strength of the reference signal sent by the terminal served by the transmission and reception point.

[0008] For each terminal, a reference transmit power of each of at least two transmit-receive points serving the terminal is determined according to the current transmit power of each of the at least two transmit-receive points among the multiple transmit-receive points.

[0009] According to at least one reference transmit power of each transmit / receive point, a target transmit power of each transmit / receive point is determined, and the target transmit power is used by the transmit / receive point to send a signal to a served terminal based on the target transmit power.

[0010] According to a method for determining transmit power provided by the present application, determining the reference transmit power of each of the at least two transmit receiving points serving the terminal according to the current transmit power of each of the at least two transmit receiving points among the multiple transmit receiving points includes:

[0011] Determine a minimum transmit power among the current transmit powers of the at least two transmit / receive points.

[0012] The reference transmit power of each of the at least two transmit-receive points is determined according to the minimum transmit power.

[0013] According to a method for determining transmit power provided by the present application, determining the reference transmit power of each of the at least two transmit-receive points according to the minimum transmit power includes:

[0014] The reference transmit power of the transmit and receive point corresponding to the minimum transmit power is configured to full power.

[0015] Determine the reference transmit power of the other transmit receiving points based on the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points; the other transmit receiving points are the transmit receiving points among the at least two transmit receiving points except the transmit receiving point corresponding to the minimum transmit power.

[0016] According to a method for determining transmission power provided by the present application, the full power is based on P max =maxTxPwr+10×log 10 (RFNumbers) identified.

[0017] Among them, the P max represents the full power, maxTxPwr represents the single-channel maximum transmit power of the transmit-receive point, and RFNumbers represents the number of transmit antennas of the transmit-receive point.

[0018] According to a method for determining transmit power provided by the present application, determining the reference transmit power of the other transmit receiving points according to the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points includes:

[0019] According to P target =P max +(P min -P current )+δ1, determine the reference transmit power of the other transmit and receive points.

[0020] Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ1 represents the first transmission power floating value.

[0021] According to a method for determining transmit power provided by the present application, determining the reference transmit power of the other transmit receiving points according to the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points includes:

[0022] according to Determine the reference transmit power of the other transmit and receive points.

[0023] Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ2 represents the second transmission power floating value.

[0024] According to a method for determining transmit power provided by the present application, determining a target transmit power of each transmit receiving point according to at least one reference transmit power of each transmit receiving point includes:

[0025] For each of the transmitting and receiving points, if the transmitting and receiving point corresponds to a reference transmitting power, the reference transmitting power is determined as the target transmitting power of the transmitting and receiving point.

[0026] If the transmitting and receiving point corresponds to at least two reference transmitting powers, the maximum reference transmitting power among the at least two reference transmitting powers is determined as the target transmitting power of the transmitting and receiving point.

[0027] According to a method for determining transmission power provided by the present application, the current transmission power of each of the multiple transmission receiving points sent by the receiving distribution unit includes:

[0028] When the position of any terminal among the terminals respectively served by the multiple transmitting and receiving points changes, the current transmission power of each of the multiple transmitting and receiving points sent by the distribution unit is received.

[0029] According to a method for determining transmit power provided by the present application, the method further includes:

[0030] A configuration command is sent to a distribution unit to which each of the transmitting and receiving points belongs, wherein the configuration command is used to instruct the distribution unit to configure the target transmitting power for the corresponding transmitting and receiving point.

[0031] In a second aspect, an embodiment of the present application further provides a method for determining transmit power, which is applied to a distribution unit, and the method includes:

[0032] The current transmission power of the transmission and reception point corresponding to the distribution unit is sent to the central unit.

[0033] The current transmit power is used to determine the target transmit power of the transmit-receive point, and the target transmit power is used by the transmit-receive point to send a signal to a served terminal based on the target transmit power.

[0034] According to a method for determining transmit power provided by the present application, the method further includes:

[0035] Receive a reference signal sent by the transmitting and receiving point.

[0036] The current transmission power of the transmitting and receiving point is determined according to the strength of the reference signal sent by the transmitting and receiving point.

[0037] According to a method for determining transmission power provided by the present application, the sending of the current transmission power of the transmission and receiving point corresponding to the distribution unit to the centralized unit includes:

[0038] In case that the position of any terminal served by the transmit / receive point changes, the current transmit power of the transmit / receive point is sent to the central unit.

[0039] According to a method for determining transmit power provided by the present application, the method further includes:

[0040] A configuration command sent by the centralized unit is received, where the configuration command is used to instruct the distributed unit to configure the target transmit power for the transmit / receive point.

[0041] A target transmit power is configured for the transmit / receive point.

[0042] In a third aspect, an embodiment of the present application further provides a method for determining transmit power, which is applied to a transmitting and receiving point, and the method includes:

[0043] A reference signal is sent to the distribution unit to which the transmitting and receiving point belongs.

[0044] The reference signal is used to determine the target transmit power of the transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

[0045] According to a method for determining transmit power provided by the present application, the sending of a reference signal to a distribution unit to which the transmit / receive point belongs includes:

[0046] A current reference signal sent by the terminal is received.

[0047] Whether the location of the terminal changes is determined according to the strength of the current reference signal and the strength of a historical reference signal received last time and sent by the terminal.

[0048] In the case where it is determined that the location of the terminal changes, the reference signal is sent to the distribution unit.

[0049] In a fourth aspect, an embodiment of the present application further provides a centralized unit, including a memory, a transceiver, and a processor:

[0050] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0051] The current transmission power of each of the multiple transmission and reception points sent by the receiving distribution unit is determined based on the strength of the reference signal sent by the terminal served by the transmission and reception point.

[0052] For each terminal, a reference transmit power of each of at least two transmit-receive points serving the terminal is determined according to the current transmit power of each of the at least two transmit-receive points among the multiple transmit-receive points.

[0053] According to at least one reference transmit power of each transmit / receive point, a target transmit power of each transmit / receive point is determined, and the target transmit power is used by the transmit / receive point to send a signal to a served terminal based on the target transmit power.

[0054] According to a centralized unit provided by the present application, the determining, according to the current transmit powers of at least two transmit-receive points serving the terminal among the multiple transmit-receive points, the reference transmit powers of the at least two transmit-receive points, respectively, includes:

[0055] Determine a minimum transmit power among the current transmit powers of the at least two transmit / receive points.

[0056] The reference transmit power of each of the at least two transmit-receive points is determined according to the minimum transmit power.

[0057] According to a centralized unit provided by the present application, determining the reference transmit power of each of the at least two transmit-receive points according to the minimum transmit power includes:

[0058] The reference transmit power of the transmit and receive point corresponding to the minimum transmit power is configured to full power.

[0059] Determine the reference transmit power of the other transmit receiving points based on the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points; the other transmit receiving points are the transmit receiving points among the at least two transmit receiving points except the transmit receiving point corresponding to the minimum transmit power.

[0060] According to a centralized unit provided in the present application, the full power is based on P max =maxTxPwr+10×log 10 (RFNumbers) identified.

[0061] Among them, the P max represents the full power, maxTxPwr represents the single-channel maximum transmit power of the transmit-receive point, and RFNumbers represents the number of transmit antennas of the transmit-receive point.

[0062] According to a centralized unit provided by the present application, determining the reference transmit power of the other transmit receiving points according to the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points includes:

[0063] According to P target =P max +(P min -P current )+δ1, determine the reference transmit power of the other transmit and receive points.

[0064] Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ1 represents the first transmission power floating value.

[0065] According to a centralized unit provided by the present application, determining the reference transmit power of the other transmit receiving points according to the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points includes:

[0066] according to Determine the reference transmit power of the other transmit and receive points.

[0067] Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ2 represents the second transmission power floating value.

[0068] According to a centralized unit provided by the present application, determining the target transmit power of each transmit receiving point according to at least one reference transmit power of each transmit receiving point includes:

[0069] For each of the transmitting and receiving points, if the transmitting and receiving point corresponds to a reference transmitting power, the reference transmitting power is determined as the target transmitting power of the transmitting and receiving point.

[0070] If the transmitting and receiving point corresponds to at least two reference transmitting powers, the maximum reference transmitting power among the at least two reference transmitting powers is determined as the target transmitting power of the transmitting and receiving point.

[0071] According to a centralized unit provided by the present application, the current transmission power of each of the multiple transmission receiving points sent by the receiving distribution unit includes:

[0072] When the position of any terminal among the terminals respectively served by the multiple transmitting and receiving points changes, the current transmission power of each of the multiple transmitting and receiving points sent by the distribution unit is received.

[0073] According to a centralized unit provided by the present application, the processor is further configured to perform the following operations:

[0074] A configuration command is sent to a distribution unit to which each of the transmitting and receiving points belongs, wherein the configuration command is used to instruct the distribution unit to configure the target transmitting power for the corresponding transmitting and receiving point.

[0075] In a fifth aspect, an embodiment of the present application further provides a distribution unit, including a memory, a transceiver, and a processor:

[0076] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0077] The current transmission power of the transmission and reception point corresponding to the distribution unit is sent to the central unit.

[0078] The current transmit power is used to determine the target transmit power of the transmit-receive point, and the target transmit power is used by the transmit-receive point to send a signal to a served terminal based on the target transmit power.

[0079] According to a distribution unit provided by the present application, the processor is further configured to perform the following operations:

[0080] Receive a reference signal sent by the transmitting and receiving point.

[0081] The current transmission power of the transmitting and receiving point is determined according to the strength of the reference signal sent by the transmitting and receiving point.

[0082] According to a distribution unit provided by the present application, sending the current transmission power of the transmission and receiving point corresponding to the distribution unit to the centralized unit includes:

[0083] In case that the position of any terminal served by the transmitting and receiving point changes, the current transmission power of the transmitting and receiving point is sent to the central unit.

[0084] According to a distribution unit provided by the present application, the processor is further configured to perform the following operations:

[0085] A configuration command sent by the centralized unit is received, where the configuration command is used to instruct the distributed unit to configure the target transmit power for the transmit / receive point.

[0086] A target transmit power is configured for the transmit / receive point.

[0087] In a sixth aspect, an embodiment of the present application further provides a transmitting and receiving point, including a memory, a transceiver, and a processor:

[0088] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0089] A reference signal is sent to the distribution unit to which the transmitting and receiving point belongs.

[0090] The reference signal is used to determine the target transmit power of the transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

[0091] According to a transmitting and receiving point provided by the present application, sending a reference signal to a distribution unit to which the transmitting and receiving point belongs includes:

[0092] A current reference signal sent by the terminal is received.

[0093] Whether the location of the terminal changes is determined according to the strength of the current reference signal and the strength of a historical reference signal received last time and sent by the terminal.

[0094] In the case where it is determined that the location of the terminal changes, the reference signal is sent to the distribution unit.

[0095] In a seventh aspect, an embodiment of the present application further provides a device for determining transmit power, which is applied to a centralized unit, and the device includes:

[0096] The receiving unit is used to receive the current transmission power of each of the multiple transmitting and receiving points sent by the distribution unit, and the current transmission power of each of the transmitting and receiving points is determined based on the strength of the reference signal sent by the terminal served by the transmitting and receiving point.

[0097] The first processing unit is used to determine, for each terminal, a reference transmit power of each of the at least two transmit-receive points serving the terminal according to each current transmit power of the at least two transmit-receive points among the multiple transmit-receive points.

[0098] The second processing unit is used to determine the target transmit power of each of the transmit and receive points according to at least one reference transmit power of each of the transmit and receive points, and the target transmit power is used by the transmit and receive point to send a signal to the served terminal based on the target transmit power.

[0099] According to a transmission power determination device provided in the present application, the first processing unit is specifically used to determine the minimum transmission power among the current transmission powers of the at least two transmitting and receiving points; and based on the minimum transmission power, determine the reference transmission power of the at least two transmitting and receiving points.

[0100] According to a transmission power determination device provided by the present application, the first processing unit is specifically used to configure the reference transmission power of the transmission receiving point corresponding to the minimum transmission power to full power; determine the reference transmission power of the other transmission receiving points according to the minimum transmission power, the full power, and the current transmission power of the other transmission receiving points; the other transmission receiving points are the transmission receiving points among the at least two transmission receiving points except the transmission receiving point corresponding to the minimum transmission power.

[0101] According to a transmission power determination device provided by the present application, the full power is based on P max =maxTxpwr+10×log 10 (RFNumbers) identified.

[0102] Among them, the P max represents the full power, maxTxPwr represents the single-channel maximum transmit power of the transmit-receive point, and RFNumbers represents the number of transmit antennas of the transmit-receive point.

[0103] According to a transmission power determination device provided by the present application, the first processing unit is specifically configured to determine the transmission power according to P target =P max +(P min -P current )+δ1, determine the reference transmit power of the other transmit and receive points.

[0104] Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ1 represents the first transmission power floating value.

[0105] According to a transmission power determination device provided by the present application, the first processing unit is specifically configured to: Determine the reference transmit power of the other transmit and receive points.

[0106] Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ2 represents the second transmission power floating value.

[0107] According to a transmission power determination device provided by the present application, the second processing unit is specifically used to, for each of the transmitting and receiving points, if the transmitting and receiving point corresponds to a reference transmission power, determine the one reference transmission power as the target transmission power of the transmitting and receiving point; if the transmitting and receiving point corresponds to at least two reference transmission powers, determine the maximum reference transmission power among the at least two reference transmission powers as the target transmission power of the transmitting and receiving point.

[0108] According to a transmission power determination device provided in the present application, the receiving unit is specifically used to receive the current transmission power of each of the multiple transmission receiving points sent by the distribution unit when the position of any terminal among the terminals served by the multiple transmission receiving points changes.

[0109] According to a device for determining transmission power provided by the present application, the device also includes a sending unit.

[0110] The sending unit is used to send a configuration command to the distribution unit to which each of the transmitting and receiving points belongs, and the configuration command is used to instruct the distribution unit to configure the target transmission power for the corresponding transmitting and receiving point.

[0111] In an eighth aspect, an embodiment of the present application further provides a device for determining transmit power, which is applied to a distribution unit, and the device includes:

[0112] The sending unit is used to send the current transmission power of the transmission and receiving point corresponding to the distribution unit to the central unit.

[0113] The current transmit power is used to determine the target transmit power of the transmit-receive point, and the target transmit power is used by the transmit-receive point to send a signal to a served terminal based on the target transmit power.

[0114] According to a device for determining transmission power provided by the present application, the device also includes a first receiving unit and a processing unit.

[0115] The first receiving unit is used to receive the reference signal sent by the transmitting and receiving point.

[0116] The processing unit is used to determine the current transmission power of the transmitting and receiving point according to the strength of the reference signal sent by the transmitting and receiving point.

[0117] According to a transmission power determination device provided by the present application, the sending unit is specifically used to send the current transmission power of the transmission receiving point to the central unit when the position of any terminal served by the transmission receiving point changes.

[0118] According to a device for determining transmission power provided by the present application, the device also includes a second receiving unit and a configuration unit.

[0119] The second receiving unit is used to receive a configuration command sent by the centralized unit, where the configuration command is used to instruct the distributed unit to configure the target transmit power for the transmitting and receiving point.

[0120] The configuration unit is used to configure the target transmission power for the transmitting and receiving point.

[0121] In a ninth aspect, an embodiment of the present application further provides a device for determining a transmission power, which is applied to a transmitting and receiving point, and the device includes:

[0122] The sending unit is used to send a reference signal to the distribution unit to which the transmitting and receiving point belongs.

[0123] The reference signal is used to determine the target transmit power of the transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

[0124] According to a device for determining transmission power provided in the present application, the device also includes a receiving unit and a processing unit.

[0125] The receiving unit is configured to receive a current reference signal sent by the terminal.

[0126] The processing unit is used to determine whether the position of the terminal changes according to the strength of the current reference signal and the strength of the historical reference signal received last time and sent by the terminal.

[0127] The sending unit is specifically configured to send the reference signal to the distribution unit when it is determined that the location of the terminal changes.

[0128] In the tenth aspect, an embodiment of the present application also provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the method for determining the transmission power as described in the first aspect as described above; or, execute the steps of the method for determining the transmission power as described in the second aspect as described above; or, execute the steps of the method for determining the transmission power as described in the third aspect as described above.

[0129] The method and device for determining the transmission power provided in the embodiment of the present application, when determining the target transmission power of each of the multiple transmission receiving points, the centralized unit can first obtain the current transmission power of each of the multiple transmission receiving points, and the current transmission power of each transmission receiving point is determined based on the strength of the reference signal sent by the terminal served by the transmission receiving point; for each terminal, according to the current transmission power of at least two transmission receiving points serving the terminal among the multiple transmission receiving points, the reference transmission power of at least two transmission receiving points is determined; according to at least one reference transmission power of each transmission receiving point, the target transmission power of each transmission receiving point is determined, and the target transmission power is used by the transmission receiving point to send a signal to the terminal served based on the target transmission power. In this way, the target transmission power of each TPR is determined according to the strength of the reference signal sent by the terminal served by each of the multiple TPRs, and the target transmission power of each of the multiple TPRs can be accurately determined, so that the multiple TPRs can send signals to the terminals served by them based on their respective target transmission powers, thereby improving the signal transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0130] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0131] Figure 1 A schematic diagram of a multi-TPR collaborative transmission scenario provided in an embodiment of the present application;

[0132] Figure 2 A flow chart of a method for determining transmission power provided in an embodiment of the present application Figure 1 ;

[0133] Figure 3 A flowchart of a method for determining a reference transmit power of at least two transmitting and receiving points provided in an embodiment of the present application;

[0134] Figure 4 A schematic diagram of another multi-TPR collaborative transmission scenario provided in an embodiment of the present application;

[0135] Figure 5 A schematic diagram of another multi-TPR collaborative transmission scenario provided in an embodiment of the present application;

[0136] Figure 6 A schematic diagram of another multi-TPR collaborative transmission scenario provided in an embodiment of the present application;

[0137] Figure 7 A flow chart of a method for determining transmission power provided in an embodiment of the present application Figure 2 ;

[0138] Figure 8 A flow chart of a method for determining transmission power provided in an embodiment of the present application Figure 3 ;

[0139] Fig. 9 A schematic diagram of the structure of a centralized unit provided in an embodiment of the present application;

[0140] Fig.10 A schematic diagram of the structure of a distribution unit provided in an embodiment of the present application;

[0141] Fig.11 A schematic diagram of the structure of a transmitting and receiving point provided in an embodiment of the present application;

[0142] Fig.12 One of the structural schematic diagrams of a device for determining transmission power provided in an embodiment of the present application;

[0143] Fig.13 A second structural diagram of a device for determining transmit power provided in an embodiment of the present application;

[0144] Fig.14 The third structural diagram of the device for determining the transmission power provided in the embodiment of the present application. DETAILED DESCRIPTION

[0145] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0146] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0147] The technical solution provided in the embodiments of the present application can be applicable to a variety of systems, such as a 5G system.

[0148] Among them, the terminal involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal may also be different. For example, in a 5G system, the terminal may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0149] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0150] For example, in an embodiment of the present application, one or more antennas may be used between the network device and the terminal device for multiple input multiple output (MIMO) transmission, and the MIMO transmission may be single user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of the antenna combination, the MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it may be diversity transmission, precoded transmission or beamforming transmission, etc.

[0151] In a traditional cellular communication network, physical resource configuration, such as transmission power, is usually performed with a base station as an anchor point, so that the base station transmits a signal based on the transmission power.

[0152] However, with the development of technologies such as distributed antennas, the Transmission Reception Point (TRP) may be used as a new anchor point to determine its transmission power due to its distributed characteristics and flexible on-demand deployment, so that the TRP can transmit signals to the terminals it serves based on the determined transmission power.

[0153] In future multi-TPR cooperative transmission scenarios, terminals will usually select multiple TRPs to serve them. For example, see Figure 1 As shown, Figure 1 A schematic diagram of a multi-TPR collaborative transmission scenario provided in an embodiment of the present application, wherein the distributed units (DU) served by the centralized unit (CU) include DU1 and DU2. DU1 serves TRP1, TRP2 and TRP3, and DU2 serves TRP4, TRP5 and TRP6. TRP2, TRP3 and TRP4 all serve the same terminal. Figure 1 In the multi-TPR collaborative transmission scenario shown, before TRP2, TRP3 and TRP4 send signals to the terminals they serve, it is necessary to first determine the transmission power of TRP2, TRP3 and TRP4 when they send signals, so that they can send signals to the terminals based on their respective transmission powers.

[0154] Based on this, how to determine the respective transmission powers of TRP2, TRP3 and TRP4 so that TRP2, TRP3 and TRP4 can send signals to the terminals they serve based on their respective transmission powers is a problem that technical personnel in this field urgently need to solve.

[0155] In order to solve the above problems, in an embodiment of the present application, after obtaining the current transmit powers of multiple TRPs, the centralized unit can determine the reference transmit powers of at least two TRPs for each terminal based on the current transmit powers of at least two TRPs serving the terminal; and determine the target transmit power of each TRP based on at least one reference transmit power of each TRP, where the target transmit power is used for the TRP to send signals to the served terminal based on the target transmit power.

[0156] In this way, the target transmit power of each TPR is determined according to the strength of the reference signal sent by the terminal served by each of the multiple TPRs, so that the target transmit power of each of the multiple TPRs can be accurately determined, so that the multiple TPRs can send signals to the terminals served by them based on their respective target transmit powers, thereby improving signal transmission performance.

[0157] It should be noted that in the embodiment of the present application, the reason why there is at least one reference transmit power in the TRP is that: if the TRP only serves one terminal, the centralized unit can determine a reference transmit power corresponding to the TRP based on the current transmit powers of at least two TRPs serving the terminal; if the TRP serves at least two terminals, the centralized unit can determine a reference transmit power based on the current transmit powers of at least two TRPs serving each terminal. In this case, the TRP will correspond to at least two reference transmit powers.

[0158] It can be seen that in the embodiment of the present application, the number of reference transmit powers of the TRP is equal to the number of terminals served by the TRP, that is, if the TRP serves m terminals, there will be m corresponding reference transmit powers, and M is a positive integer greater than 1. It is worth noting that for a TRP, although it will correspond to one or more reference transmit powers, there is only one target reference transmit power ultimately determined for it, and the TRP can send signals to one or more terminals served by it based on the one target reference transmit power.

[0159] It is understandable that the technical solution provided in the embodiment of the present application can be applied to multi-TRP collaborative transmission scenarios. For example, joint transmission scenarios in multi-antenna technology, multi-TRP transmission scenarios, or transmission scenarios of user-centric network architectures, etc., can be specifically set according to actual needs.

[0160] Below, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0161] Figure 2 A flow chart of a method for determining transmission power provided in an embodiment of the present application Figure 1 , the method for determining the transmission power can be applied to a centralized unit. For example, see Figure 2 As shown, the method for determining the transmit power may include:

[0162] S201. Receive current transmission power of each of a plurality of transmission and reception points sent by a distribution unit, where the current transmission power of each transmission and reception point is determined based on the strength of a reference signal sent by a terminal served by the transmission and reception point.

[0163] The number of distribution units can be one or more, and each distribution unit only sends the current transmission power of its corresponding transmission and reception point. When multiple transmission and reception points belong to the same distribution unit, the number of distribution units is one; when multiple transmission and reception points belong to different distribution units, the number of distribution units is multiple, which can be set according to actual needs.

[0164] For example, in the embodiment of the present application, when the distribution unit sends the current transmission power of each of the multiple transmission and reception points to the centralized unit, at least the following two possible implementations may be included:

[0165] In one possible implementation, after receiving the reference signal sent by the terminal it serves, the transmitting and receiving point directly sends the reference signal to the distribution unit; correspondingly, the distribution unit determines the current transmit power of the transmitting and receiving point based on the strength of the reference signal, and sends the current transmit power of the transmitting and receiving point to the centralized unit, so that the centralized unit determines the target transmit power of the transmitting and receiving point based on the current transmit power of the transmitting and receiving point, and the target transmit power is used for the transmitting and receiving point to send signals to the terminal it serves.

[0166] In another possible implementation, after receiving the reference signal sent by the terminal it serves, the transmitting and receiving point does not directly send the reference signal to the distribution unit, but first determines whether the position of the terminal has changed based on the strength of the reference signal received this time and the strength of the reference signal received last time. If the position of the terminal has not changed, the previously configured transmission power can continue to be used to send signals to the terminal; on the contrary, if the position of the terminal has changed, the reference signal is sent to the distribution unit; correspondingly, the distribution unit determines the current transmission power of the transmitting and receiving point based on the strength of the reference signal, and sends the current transmission power of the transmitting and receiving point to the centralized unit, so that the centralized unit determines the target transmission power of the transmitting and receiving point based on the current transmission power of the transmitting and receiving point, and the target transmission power is used for the transmitting and receiving point to send signals to the terminal it serves.

[0167] It should be noted that, when the terminal served by multiple transmitting and receiving points is the same terminal and the position of the terminal changes, the distribution unit sends the current transmission power of each of the multiple transmitting and receiving points to the centralized unit. When the terminals served by multiple transmitting and receiving points include different terminals and the position of any terminal changes, the distribution unit sends the current transmission power of each of the multiple transmitting and receiving points to the centralized unit, which can be set according to actual needs.

[0168] It can be seen that in this possible implementation method, when the position of the terminal changes, the transmitting and receiving point will send the received reference signal to the distribution unit to which it belongs, and the distribution unit will determine the current transmission power of the transmitting and receiving point based on the strength of the received reference signal, and send the current transmission power of the transmitting and receiving point to the centralized unit, which can effectively avoid the waste of resources caused by re-determining the target transmission power for the transmitting and receiving point when the position of the terminal has not changed.

[0169] After the current transmit power of each of the multiple transmit and receive points is obtained through the above S201, the reference transmit power of each of the at least two transmit and receive points serving the terminal can be determined in units of the terminal, that is, the following S202 is executed:

[0170] S202: For each terminal, determine the reference transmit power of at least two transmit / receive points serving the terminal according to the current transmit power of at least two transmit / receive points among the multiple transmit / receive points.

[0171] For example, for each terminal, at least two transmitting and receiving points serving the terminal can be first determined from multiple transmitting and receiving points; then, taking the terminal as a unit, the reference transmit power of the at least two transmitting and receiving points serving the terminal can be determined according to the current transmit power of each of the at least two transmitting and receiving points serving the terminal.

[0172] It should be noted that, from multiple transmitting and receiving points, determining at least two transmitting and receiving points serving the terminal can be understood as clustering the multiple transmitting and receiving points based on the terminal to obtain a transmitting and receiving point cluster corresponding to each terminal. When determining the reference transmit power of each of the at least two transmitting and receiving points corresponding to any terminal, a transmitting and receiving point cluster can be used as a unit to determine the reference transmit power of each transmitting and receiving point based on the current transmit power of each transmitting and receiving point included therein.

[0173] It can be understood that, for each transmitting and receiving point, if the transmitting and receiving point only serves one terminal, the centralized unit can determine a reference transmitting power corresponding to the transmitting and receiving point based on the current transmitting powers of at least two transmitting and receiving points serving the terminal; if the transmitting and receiving point serves at least two terminals, the centralized unit can determine a reference transmitting power based on the current transmitting powers of at least two transmitting and receiving points serving each terminal. In this case, the transmitting and receiving point will correspond to at least two reference transmitting powers.

[0174] After determining at least one reference transmit power of each transmit receiving point, the target transmit power of each transmit receiving point can be determined according to the at least one reference transmit power of each transmit receiving point, that is, the following S203 is performed:

[0175] S203: Determine a target transmit power of each transmit / receive point according to at least one reference transmit power of each transmit / receive point, where the target transmit power is used by the transmit / receive point to send a signal to a served terminal based on the target transmit power.

[0176] For example, in the embodiment of the present application, when determining the target transmit power of each transmit receiving point according to at least one reference transmit power of each transmit receiving point, at least two possible implementations may be included:

[0177] In one possible implementation, for each transmitting and receiving point, if the transmitting and receiving point corresponds to a reference transmitting power, the reference transmitting power can be determined as the target transmitting power of the transmitting and receiving point; if the transmitting and receiving point corresponds to at least two reference transmitting powers, considering that the target transmitting power finally determined needs to meet the demand of sending signals to different terminals, the maximum reference transmitting power among the at least two reference transmitting powers is determined as the target transmitting power of the transmitting and receiving point.

[0178] In another possible implementation, for each transmitting and receiving point, if the transmitting and receiving point corresponds to a reference transmit power, the reference transmit power can be used as a reference to find a transmit power greater than the reference transmit power, and the transmit power is determined as the target transmit power of the transmitting and receiving point. Similarly, if the transmitting and receiving point corresponds to at least two reference transmit powers, considering that a target transmit power finally determined needs to meet the requirements of sending signals to different terminals, the maximum reference transmit power of the at least two reference transmit powers can be used as a reference to find a transmit power greater than the maximum reference transmit power, and the transmit power is determined as the target transmit power of the transmitting and receiving point.

[0179] It should be noted that, in this possible implementation, the value of the transmit power greater than the reference transmit power can be set according to actual needs, and the embodiment of the present application does not make further restrictions here. Similarly, the value of the transmit power greater than the maximum reference transmit power can also be set according to actual needs, and the embodiment of the present application does not make further restrictions here.

[0180] It can be seen that in the embodiment of the present application, when determining the target transmission power of each of the multiple transmitting and receiving points, the centralized unit can receive the current transmission power of each of the multiple transmitting and receiving points sent by the distributed unit, and the current transmission power of each transmitting and receiving point is determined based on the strength of the reference signal sent by the terminal served by the transmitting and receiving point; for each terminal, according to the current transmission power of at least two transmitting and receiving points serving the terminal among the multiple transmitting and receiving points, the reference transmission power of at least two transmitting and receiving points is determined; and then according to at least one reference transmission power of each transmitting and receiving point, the target transmission power of each transmitting and receiving point is determined, and the target transmission power is used by the transmitting and receiving point to send a signal to the terminal served based on the target transmission power. In this way, by determining the target transmission power of each TPR according to the strength of the reference signal sent by the terminal served by each of the multiple TPRs, the target transmission power of each of the multiple TPRs can be accurately determined, so that the multiple TPRs can send signals to the terminals served by them based on their respective target transmission powers, thereby improving the signal transmission performance.

[0181] Based on the above Figure 2 In the embodiment shown, after determining the target transmit power of each transmit-receive point, the centralized unit may also send a configuration command to the distributed unit to which each transmit-receive point belongs, and the configuration command is used to instruct the distributed unit to configure the target transmit power for the corresponding transmit-receive point; correspondingly, after receiving the configuration command, the distributed unit configures the target transmit power for the transmit-receive point. In this way, by configuring the target transmit power for the transmit-receive point, the transmit-receive point can send a signal to the terminal it serves based on the configured target transmit power, thereby improving the signal transmission performance.

[0182] Based on the above Figure 2 In order to facilitate understanding of how, in the above S202, the reference transmit power of at least two transmit-receive points is determined according to the current transmit power of at least two transmit-receive points serving the terminal among the multiple transmit-receive points, the following will be described. Figure 3 The illustrated embodiments are described in detail.

[0183] Figure 3 A flow chart of a method for determining the reference transmission power of at least two transmitting and receiving points provided in an embodiment of the present application, the determination method can be applied to a centralized unit. For example, see Figure 3As shown, the determination method may include:

[0184] S301: Determine the minimum transmission power among the current transmission powers of at least two transmitting and receiving points.

[0185] S302: Determine reference transmit powers of at least two transmit and receive points according to the minimum transmit power.

[0186] For example, when determining the reference transmit power of each of at least two transmit receiving points based on the minimum transmit power, the reference transmit power of the transmit receiving point corresponding to the minimum transmit power can be configured as full power. By configuring the minimum transmit power as full power, the signal transmission performance of the transmit receiving point corresponding to the minimum transmit power can be effectively improved. For other transmit receiving points except the transmit receiving point corresponding to the minimum transmit power, the reference transmit power of other transmit receiving points can be determined based on the minimum transmit power, full power, and the current transmit power of other transmit receiving points, so that the reference transmit power of other transmit receiving points can meet the signal transmission requirements of other transmit receiving points, thereby improving the signal transmission performance of other transmit receiving points.

[0187] For example, in the embodiment of the present application, full power is based on P max =maxTxPwr+10×log 10 (RFNumbers). Among them, P max Indicates full power, maxTxPwr indicates the maximum single-channel transmit power of the transmitting and receiving point, and RFNumbers indicates the number of transmitting antennas of the transmitting and receiving point.

[0188] For example, in an embodiment of the present application, the single-channel maximum transmission power and the number of transmitting antennas of multiple TPRs are equal, that is, the multiple TPRs are TPRs of the same specifications; of course, the multiple TPRs may also be TPRs of different specifications, that is, the single-channel maximum transmission power of the multiple TPRs, and / or the number of transmitting antennas are not equal, which can be specifically set according to actual needs. Here, the embodiment of the present application is only illustrated by taking multiple TPRs of the same specifications as an example, but it does not mean that the embodiment of the present application is limited to this.

[0189] For example, in an embodiment of the present application, when determining the reference transmit power of other transmit receiving points according to the minimum transmit power, the full power, and the current transmit power of other transmit receiving points, at least the following two possible implementations may be included:

[0190] In a possible implementation, when the unit of transmit power is dBm, the P target =P max +(P min -Pcurrent )+δ1, determine the reference transmit power of other transmitting and receiving points.

[0191] Among them, P target Indicates the target transmission power of other transmitting and receiving points, P max Indicates full power, P min Indicates the minimum transmit power, P current represents the current transmit power of other transmitting and receiving points, and δ1 represents the first transmit power floating value, which can be set according to actual needs.

[0192] In another possible implementation, when the unit of the transmit power is an absolute value of mW, the transmit power may be calculated based on Determine the reference transmit power of other transmit and receive points.

[0193] Among them, P target Indicates the target transmission power of other transmitting and receiving points, P max Indicates full power, P min Indicates the minimum transmit power, P current represents the current transmit power of other transmit and receive points, and δ2 represents the second transmit power floating value.

[0194] It can be understood that when determining the reference transmit power of other transmit and receive points based on the minimum transmit power, full power, and the current transmit power of other transmit and receive points, the embodiments of the present application only use the above two possible implementation methods as examples for illustration, but it does not mean that the embodiments of the present application are limited to this.

[0195] It can be seen that in the embodiment of the present application, when determining the reference transmit power of each of at least two transmitting and receiving points, the reference transmit power of the transmitting and receiving point corresponding to the minimum transmit power can be configured as full power; for other transmitting and receiving points, the reference transmit power of other transmitting and receiving points is determined based on the minimum transmit power, full power, and the current transmit power of other transmitting and receiving points. In this way, the transmit power resources can be reasonably allocated, so that the centralized unit can subsequently accurately determine the target transmit power of each transmitting and receiving point based on the reference transmit power of each transmitting and receiving point.

[0196] In order to facilitate understanding of the method for determining the transmit power provided by the present application, the method for determining the transmit power provided by the embodiment of the present application will be described in detail below in combination with different TPR cooperative transmission scenarios. It should be noted that in the description of the subsequent embodiments 1-4, the unit of transmit power will be dBm as an example.

[0197] Example 1

[0198] The multi-TPR cooperative transmission scenario shown in Example 1 can be found in the above Figure 1As shown, the distributed units corresponding to the centralized unit CU include DU1 and DU2. Among them, DU1 serves TRP1, TRP2, and TRP3, and DU2 serves TRP4, TRP5, and TRP6. TRP2, TRP3, and TRP4 all serve the same terminal. When determining the respective target transmit powers of TRP2, TRP3, and TRP4, it may include:

[0199] Step1: The terminal sends reference signals to TRP2, TRP3, and TRP4 that serve it.

[0200] Step2: TRP2 and TRP3 send the reference signals they receive to DU1, and TRP4 sends the reference signal it receives to DU2.

[0201] Step3: DU1 determines the current transmit power of TRP2 according to the strength of the reference signal sent by TRP2; determines the current transmit power of TRP3 according to the strength of the reference signal sent by TRP3; and sends the respective current transmit powers of TRP2 and TRP3 to CU.

[0202] Exemplarily, in this Embodiment 1, the current transmit power of TRP2 can be denoted as P2, and the current transmit power of TRP3 can be denoted as P3.

[0203] Step4: DU2 determines the current transmit power of TRP4 according to the strength of the reference signal sent by TRP4; and sends the current transmit power of TRP4 to CU.

[0204] Exemplarily, in this Embodiment 1, the current transmit power of TRP4 can be denoted as P4.

[0205] It should be noted that in the embodiments of this application, there is no sequential order between Step3 and Step4. The embodiments of this application only take the example of executing Step3 first and then Step4 for illustration. It is also possible to execute Step4 first and then Step3; or, it is also possible to execute Step3 and Step4 simultaneously, which can be specifically set according to actual needs.

[0206] Step5: CU compares P2, P3, and P4. Assuming P2 < P3 < P4, it determines that the reference transmit power of TRP2 is the full power P max , and according to P target = P max + (P min - P current ) + δ1 respectively determines the respective reference transmit powers of TRP3 and TRP4.

[0207] Step 6. Since TRP2, TRP3 and TRP4 each correspond to only one reference transmit power, the reference transmit powers of TRP2, TRP3 and TRP4 are determined as their respective target transmit powers.

[0208] Among them, the target transmission power of TRP2 is used for TRP2 to send signals to the terminal, the target transmission power of TRP3 is used for TRP3 to send signals to the terminal, and the target transmission power of TRP4 is used for TRP4 to send signals to the terminal.

[0209] Step 7. CU sends a first configuration command to DU1, where the first configuration command is used to instruct DU1 to configure respective target transmit powers for TRP2 and TRP3; and sends a second configuration command to DU2, where the second configuration command is used to instruct DU2 to configure respective target transmit powers for TRP4.

[0210] Example 2

[0211] The multi-TPR cooperative transmission scenario shown in Example 2 can be found in Figure 4 As shown, Figure 4 A schematic diagram of another multi-TPR collaborative transmission scenario provided in an embodiment of the present application. Figure 4 As shown, the distribution unit corresponding to the centralized unit CU is DU. Among them, DU serves TRP1, TRP2, TRP3, and TRP4. TRP1 and TRP2 both serve terminal 1, and TRP3 and TRP4 both serve terminal 2. When determining the target transmission power of TRP1, TRP2, TRP3, and TRP4, it can include:

[0212] Step 1: Terminal 1 sends a reference signal to TRP1 and TRP2 serving it, and TRP1 and TRP2 send the received reference signal to DU.

[0213] Step 2: Terminal 2 sends a reference signal to TRP3 and TRP4 serving it, and TRP3 and TRP4 send the received reference signal to DU.

[0214] It should be noted that in the embodiment of the present application, there is no order between Step 1 and Step 2. The embodiment of the present application is only explained by taking the execution of Step 1 first and then Step 2 as an example. Step 2 may also be executed first and then Step 1; or, Step 1 and Step 2 may also be executed at the same time. The specific setting can be made according to actual needs.

[0215] Step 3: DU determines its current transmit power according to the strength of the reference signals sent by TRP1, TRP2, TRP3, and TRP4, and sends its current transmit power to CU.

[0216] Exemplarily, in this Embodiment 2, the current transmission power of TRP1 may be denoted as P1, the current transmission power of TRP2 may be denoted as P2, the current transmission power of TRP3 may be denoted as P3, and the current transmission power of TRP4 may be denoted as P4.

[0217] Step4, the CU compares P1 and P2, and compares P3 and P4. Assuming P1 < P2, it is determined that the reference transmission power of TRP1 is the full power P max , and according to P target = P max +(P min - P current ) + δ1 to determine the reference transmission power of TRP2. Assuming P3 < P4, it is determined that the reference transmission power of TRP3 is the full power P max , and according to P target = P max +(P min - P current ) + δ1 to determine the reference transmission power of TRP4.

[0218] Step5, since each of TRP1, TRP2, TRP3, and TRP4 corresponds to only one reference transmission power, the reference transmission power of each of TRP1, TRP2, TRP3, and TRP4 is determined as its respective target transmission power.

[0219] Among them, the target transmission power of TRP1 is used for TRP1 to send signals to the terminal, the target transmission power of TRP2 is used for TRP2 to send signals to the terminal, the target transmission power of TRP3 is used for TRP3 to send signals to the terminal, and the target transmission power of TRP4 is used for TRP4 to send signals to the terminal.

[0220] Step6, the CU sends a configuration command to the DU, and the configuration command is used to instruct the DU to configure the respective target transmission powers for TRP1, TRP2, TRP3, and TRP4.

[0221] Embodiment 3

[0222] For the multi - TPR cooperative transmission scenario shown in Embodiment 3, reference can be made to Figure 5 shown in Figure 5 , which is a schematic diagram of another multi - TPR cooperative transmission scenario provided by the embodiments of the present application. Combining Figure 5 shown in, a distributed unit DU corresponding to the central unit CU. Among them, the DU serves TRP1, TRP2, and TRP3. Both TRP1 and TRP2 serve the terminal 1, and both TRP2 and TRP3 serve the terminal 2. When determining the respective target transmission powers of TRP1, TRP2, and TRP3, it may include:

[0223] Step 1: The terminal 1 sends reference signals to the serving TRP1 and TRP2, and TRP1 and TRP2 send the received reference signals to the DU.

[0224] Step 2: The terminal 2 sends reference signals to the serving TRP2 and TRP3, and TRP2 and TRP3 send the received reference signals to the DU.

[0225] It should be noted that in the embodiments of the present application, there is no sequential order between Step 1 and Step 2. The embodiments of the present application only take the example of executing Step 1 first and then Step 2 for illustration. It is also possible to execute Step 2 first and then Step 1; or, it is also possible to execute Step 1 and Step 2 simultaneously, which can be specifically set according to actual needs.

[0226] Step 3: The DU determines the respective current transmission powers according to the intensities of the reference signals sent by TRP1, TRP2, and TRP3 respectively; and sends the respective current transmission powers to the CU.

[0227] It should be noted that since the DU will receive two reference signals sent by TRP2, one reference signal is sent by TRP2 based on the reference signal sent by the terminal 1, and one reference signal is sent by TRP2 based on the reference signal sent by the terminal 2. Therefore, the DU can determine two current transmission powers of TRP2 according to the two reference signals sent by TRP2.

[0228] Exemplarily, in this Embodiment 3, the current transmission power of TRP1 can be denoted as P1, among the two current transmission powers of TRP2, one current transmission power is denoted as P2, and the other current transmission power is denoted as P2*. The current transmission power of TRP3 is denoted as P3. Among them, P2 is determined based on the reference signal sent by the terminal 1, and P2* is determined based on the reference signal sent by the terminal 2.

[0229] Step 4: The CU compares P1 and P2, and compares P2* and P3. Assuming P1 < P2, it determines that the reference transmission power of TRP1 is the full power P max , and according to P target = P max + (P min - P current ) + δ1 to determine the reference transmission power 1 of TRP2. Assuming P2* < P3, it determines that the reference transmission power 2 of TRP2 is the full power P max , and according to P target = P max + (P min - Pcurrent ) + δ1 determines the reference transmission power 2 of TRP3.

[0230] Step5: Since TRP1 and TRP3 each correspond to only one reference transmission power, the reference transmission power of each of TRP1 and TRP3 is determined as its respective target transmission power; since TRP2 corresponds to reference transmission power 1 and reference transmission power 2, the maximum reference transmission power among reference transmission power 1 and reference transmission power 2, that is, reference transmission power 2, is determined as the target transmission power of TRP2.

[0231] Among them, the target transmission power of TRP1 is used for TRP1 to send signals to the terminal, the target transmission power of TRP2 is used for TRP2 to send signals to terminal 1 and terminal 2, and the target transmission power of TRP3 is used for TRP3 to send signals to the terminal.

[0232] Step6: The CU sends a configuration command to the DU, and the configuration command is used to instruct the DU to configure the respective target transmission powers for TRP1, TRP2, and TRP3.

[0233] Embodiment 4

[0234] For the multi-TPR cooperative transmission scenario shown in Embodiment 4, reference can be made to Figure 6 as shown in Figure 6 , which is a schematic diagram of another multi-TPR cooperative transmission scenario provided by the embodiments of the present application. Combining Figure 6 as shown, the distributed unit corresponding to the centralized unit CU is the DU. Among them, the DU serves TRP1, TRP2, TRP3, and TRP4. Both TRP1 and TRP2 serve terminal 1. When determining the respective target transmission powers of TRP1 and TRP2, it may include:

[0235] Step1: Terminal 1 sends reference signals to TRP1 and TRP2 that serve it, and TRP1 and TRP2 send the received reference signals to the DU.

[0236] Step2: The DU determines the respective current transmission powers of TRP1 and TRP2 according to the intensities of the reference signals sent by TRP1 and TRP2 respectively; and sends the respective current transmission powers to the CU.

[0237] Exemplarily, in this Embodiment 4, the current transmission power of TRP1 may be denoted as P1, and the current transmission power of TRP2 may be denoted as P2.

[0238] Step4: The CU compares P1 and P2. Assuming P1 < P2, it is determined that the reference transmission power of TRP1 is the full power P max , and according to P target = P max +(Pmin -P current ) + δ1 determines the reference transmit power of TRP2.

[0239] Step5. Since each of TRP1 and TRP2 corresponds to only one reference transmit power, the reference transmit power of each of TRP1 and TRP2 is determined as its respective target transmit power.

[0240] Among them, the target transmit power of TRP1 is used for TRP1 to send signals to the terminal, and the target transmit power of TRP2 is used for TRP2 to send signals to the terminal.

[0241] Step6. The CU sends a configuration command to the DU, and the configuration command is used to instruct the DU to configure the respective target transmit powers for TRP1 and TRP2.

[0242] Based on the above description, assume that at the next moment, terminal 1 moves from the initial position to Figure 6 the shown position A, and both TRP2 and TRP3 serve terminal 1. When determining the respective target transmit powers of TRP2 and TRP3, it may include:

[0243] Step1’. Terminal 1 sends reference signals to the serving TRP2 and TRP3. TRP2 determines whether the position of terminal 1 has changed according to the strength of the received reference signal and the strength of the previously received reference signal. In the case where the position of terminal 1 has changed, TRP2 sends the received reference signal to the DU; similarly, TRP3 also determines whether the position of terminal 1 has changed according to the strength of the received reference signal and the strength of the previously received reference signal. In the case where the position of terminal 1 has changed, TRP2 sends the received reference signal to the DU.

[0244] Step2’. The DU determines the respective current transmit powers of TRP2 and TRP3 according to the strengths of the reference signals sent by TRP2 and TRP3 respectively; and sends the respective current transmit powers to the CU.

[0245] Exemplarily, in this Embodiment 4, the current transmit power of TRP2 may be denoted as P2*, and the current transmit power of TRP3 may be denoted as P3.

[0246] Step3’. The CU compares P2* and P3. Assume P2* < P3, then determine the reference transmit power of TRP2 as the full power P max , and according to P target = P max + (P min - P current ) + δ1 determines the reference transmit power of TRP3.

[0247] Step 4': Since TRP2 and TRP3 each correspond to only one reference transmit power, the reference transmit powers of TRP2 and TRP3 are determined as their respective target transmit powers.

[0248] Among them, the target transmission power of TRP2 is used for TRP2 to send signals to the terminal, and the target transmission power of TRP3 is used for TRP3 to send signals to the terminal.

[0249] Step 5', CU sends a configuration command to DU, where the configuration command is used to instruct DU to configure respective target transmit powers for TRP1 and TRP2.

[0250] Based on the above description, it is assumed that at the next moment, terminal 1 is Figure 6 The position A shown moves to the position B, and TRP3 and TRP4 both serve terminal 1. When determining the target transmission power of TRP3 and TRP4 respectively, the specific implementation is similar to the specific implementation of determining the target transmission power of TRP2 and TRP3 respectively when the terminal moves from the initial position to the A position. Please refer to the relevant description of determining the target transmission power of TRP2 and TRP3 respectively. Here, the embodiments of the present application will not be repeated.

[0251] It should be noted that the above-mentioned embodiment 4 redetermines the target transmit power of at least two TRPs serving the terminal when the position of the terminal changes; of course, if the position of the terminal has not changed, but the TRP serving the terminal changes, the target transmit power of at least two TRPs serving the terminal will also be redetermined, and its specific implementation is similar to the specific implementation of redetermining the target transmit power of at least two TRPs serving the terminal when the position of the terminal changes. The relevant description of redetermining the target transmit power of at least two TRPs serving the terminal when the position of the terminal changes will not be repeated here in the embodiments of the present application.

[0252] Figure 7 A flow chart of a method for determining transmission power provided in an embodiment of the present application Figure 2 , the method for determining the transmit power can be applied to a distributed unit. For example, see Figure 7 As shown, the method for determining the transmit power may include:

[0253] S701: Send the current transmission power of the transmission and reception point corresponding to the distribution unit to the centralized unit.

[0254] The current transmit power is used to determine the target transmit power of the transmit-receive point, and the target transmit power is used by the transmit-receive point to send a signal to a served terminal based on the target transmit power.

[0255] For example, in an embodiment of the present application, the method for determining the transmit power may further include:

[0256] Receive a reference signal sent by the transmitting and receiving point.

[0257] The current transmission power of the transmitting and receiving point is determined according to the strength of the reference signal sent by the transmitting and receiving point.

[0258] By way of example, in an embodiment of the present application, sending the current transmission power of the transmission and reception point corresponding to the distribution unit to the centralized unit includes:

[0259] In case that the position of any terminal served by the transmit / receive point changes, the current transmit power of the transmit / receive point is sent to the central unit.

[0260] For example, in an embodiment of the present application, the method for determining the transmit power may further include:

[0261] A configuration command sent by the centralized unit is received, where the configuration command is used to instruct the distributed unit to configure the target transmit power for the transmit / receive point.

[0262] A target transmit power is configured for the transmit / receive point.

[0263] It can be understood that in the embodiment of the present application, the specific implementation of the method for determining the transmission power on the distribution unit side is similar to the specific implementation of the method for determining the transmission power on the distribution unit side in the above embodiment. Please refer to the specific implementation of the method for determining the transmission power on the distribution unit side in the above embodiment. Here, the embodiment of the present application will not be repeated.

[0264] Figure 8 A flow chart of a method for determining transmission power provided in an embodiment of the present application Figure 3 , the method for determining the transmission power can be applied to the transmitting and receiving points. For example, see Figure 8 As shown, the method for determining the transmit power may include:

[0265] S801. Send a reference signal to a distribution unit to which the transmitting and receiving point belongs.

[0266] The reference signal is used to determine the target transmit power of the transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

[0267] By way of example, in an embodiment of the present application, the sending of a reference signal to a distribution unit to which the transmitting and receiving point belongs includes:

[0268] A current reference signal sent by the terminal is received.

[0269] Whether the location of the terminal changes is determined according to the strength of the current reference signal and the strength of a historical reference signal received last time and sent by the terminal.

[0270] In the case where it is determined that the location of the terminal changes, the reference signal is sent to the distribution unit.

[0271] It can be understood that in the embodiment of the present application, the specific implementation of the method for determining the transmission power on the transmitting and receiving point side is similar to the specific implementation of the method for determining the transmission power on the transmitting and receiving point side in the above-mentioned embodiment. Please refer to the specific implementation of the method for determining the transmission power on the transmitting and receiving point side in the above-mentioned embodiment. Here, the embodiment of the present application will not be repeated.

[0272] Fig. 9 A schematic diagram of the structure of a centralized unit provided in an embodiment of the present application is shown in FIG. Fig. 9 As shown, the centralized unit includes a memory 920, a transceiver 900, and a processor 910, wherein:

[0273] The memory 920 is used to store computer programs; the transceiver 900 is used to send and receive data under the control of the processor 910; the processor 910 is used to read the computer program in the memory 920 and perform the following operations:

[0274] The current transmission power of each of the multiple transmission and reception points sent by the receiving distribution unit is determined based on the strength of the reference signal sent by the terminal served by the transmission and reception point.

[0275] For each terminal, a reference transmit power of each of at least two transmit-receive points serving the terminal is determined according to the current transmit power of each of the at least two transmit-receive points among the multiple transmit-receive points.

[0276] According to at least one reference transmit power of each transmit / receive point, a target transmit power of each transmit / receive point is determined, and the target transmit power is used by the transmit / receive point to send a signal to a served terminal based on the target transmit power.

[0277] Specifically, the transceiver 900 is used to receive and send data under the control of the processor 910.

[0278] Among them, Fig. 9In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 910 and various circuits of memory represented by memory 920 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 900 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium may include a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 910 when performing operations.

[0279] The processor 910 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0280] For example, in an embodiment of the present application, determining, according to the current transmit powers of at least two transmit-receiving points serving the terminal among the multiple transmit-receiving points, the reference transmit powers of the at least two transmit-receiving points, respectively, includes:

[0281] Determine a minimum transmit power among the current transmit powers of the at least two transmit / receive points.

[0282] The reference transmit power of each of the at least two transmit-receive points is determined according to the minimum transmit power.

[0283] For example, in the embodiment of the present application, determining the reference transmit power of each of the at least two transmit and receive points according to the minimum transmit power includes:

[0284] The reference transmit power of the transmit and receive point corresponding to the minimum transmit power is configured to full power.

[0285] Determine the reference transmit power of the other transmit receiving points based on the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points; the other transmit receiving points are the transmit receiving points among the at least two transmit receiving points except the transmit receiving point corresponding to the minimum transmit power.

[0286] For example, in the embodiment of the present application, the full power is based on P max =maxTxPwr+10×log 10 (RFNumbers) identified.

[0287] Among them, the P max represents the full power, maxTxPwr represents the single-channel maximum transmit power of the transmit-receive point, and RFNumbers represents the number of transmit antennas of the transmit-receive point.

[0288] For example, in an embodiment of the present application, determining the reference transmit power of the other transmit receiving points according to the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points includes:

[0289] According to P target =P max +(P min -P current )+δ1, determine the reference transmit power of the other transmit and receive points.

[0290] Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ1 represents the first transmission power floating value.

[0291] For example, in an embodiment of the present application, determining the reference transmit power of the other transmit receiving points according to the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points includes:

[0292] according to Determine the reference transmit power of the other transmit and receive points.

[0293] Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ2 represents the second transmission power floating value.

[0294] For example, in an embodiment of the present application, determining the target transmit power of each of the transmit and receive points according to at least one reference transmit power of each of the transmit and receive points includes:

[0295] For each of the transmitting and receiving points, if the transmitting and receiving point corresponds to a reference transmitting power, the reference transmitting power is determined as the target transmitting power of the transmitting and receiving point.

[0296] If the transmitting and receiving point corresponds to at least two reference transmitting powers, the maximum reference transmitting power among the at least two reference transmitting powers is determined as the target transmitting power of the transmitting and receiving point.

[0297] For example, in the embodiment of the present application, the current transmission power of each of the multiple transmission reception points sent by the receiving distribution unit includes:

[0298] When the position of any terminal among the terminals respectively served by the multiple transmitting and receiving points changes, the current transmission power of each of the multiple transmitting and receiving points sent by the distribution unit is received.

[0299] For example, in the embodiment of the present application, the processor is further configured to perform the following operations:

[0300] A configuration command is sent to a distribution unit to which each of the transmitting and receiving points belongs, wherein the configuration command is used to instruct the distribution unit to configure the target transmitting power for the corresponding transmitting and receiving point.

[0301] It should be noted here that the above-mentioned centralized unit provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution subject is the centralized unit, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0302] Fig.10 A schematic diagram of a distribution unit provided in an embodiment of the present application is shown in FIG. Fig.10 As shown, the distribution unit includes a memory 1020, a transceiver 1000, and a processor 1010, wherein:

[0303] The memory 1020 is used to store computer programs; the transceiver 1000 is used to send and receive data under the control of the processor 1010; the processor 1010 is used to read the computer program in the memory 1020 and perform the following operations:

[0304] The current transmission power of the transmission and reception point corresponding to the distribution unit is sent to the central unit.

[0305] The current transmit power is used to determine the target transmit power of the transmit-receive point, and the target transmit power is used by the transmit-receive point to send a signal to a served terminal based on the target transmit power.

[0306] Specifically, the transceiver 1000 is used to receive and send data under the control of the processor 1010 .

[0307] Among them, Fig.10 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1010 and memory represented by memory 1020. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1000 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium may include a wireless channel, a wired channel, an optical cable, and the like. The processor 1010 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1010 when performing operations.

[0308] The processor 1010 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0309] For example, in the embodiment of the present application, the processor is further configured to perform the following operations:

[0310] Receive a reference signal sent by the transmitting and receiving point.

[0311] The current transmission power of the transmitting and receiving point is determined according to the strength of the reference signal sent by the transmitting and receiving point.

[0312] For example, in the embodiment of the present application, sending the current transmission power of the transmission and reception point corresponding to the distribution unit to the centralized unit includes:

[0313] In case that the position of any terminal served by the transmit / receive point changes, the current transmit power of the transmit / receive point is sent to the central unit.

[0314] For example, in the embodiment of the present application, the processor is further configured to perform the following operations:

[0315] A configuration command sent by the centralized unit is received, where the configuration command is used to instruct the distributed unit to configure the target transmit power for the transmit / receive point.

[0316] A target transmit power is configured for the transmit / receive point.

[0317] It should be noted here that the above-mentioned distribution unit provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution subject is the distribution unit, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0318] Fig.11 A schematic diagram of a transmitting and receiving point structure provided in an embodiment of the present application is shown in FIG. Fig.11 As shown, the transmitting and receiving point includes a memory 1120, a transceiver 1100, and a processor 1110, wherein:

[0319] The memory 1120 is used to store computer programs; the transceiver 1100 is used to send and receive data under the control of the processor 1110; the processor 1110 is used to read the computer program in the memory 1120 and perform the following operations:

[0320] A reference signal is sent to the distribution unit to which the transmitting and receiving point belongs.

[0321] The reference signal is used to determine the target transmit power of the transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

[0322] Specifically, the transceiver 1100 is used to receive and send data under the control of the processor 1110 .

[0323] Among them, Fig.11 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1110 and various circuits of memory represented by memory 1120 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1100 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium may include a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1110 when performing operations.

[0324] The processor 1110 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0325] For example, in an embodiment of the present application, the sending of a reference signal to a distribution unit to which the transmitting and receiving point belongs includes:

[0326] A current reference signal sent by the terminal is received.

[0327] Whether the location of the terminal changes is determined according to the strength of the current reference signal and the strength of a historical reference signal received last time and sent by the terminal.

[0328] In the case where it is determined that the location of the terminal changes, the reference signal is sent to the distribution unit.

[0329] It should be noted here that the above-mentioned transmitting and receiving point provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the above-mentioned execution subject is the transmitting and receiving point, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0330] In addition, an embodiment of the present application also provides a device for determining the transmission power. It can be understood that the device for determining the transmission power and the method for determining the transmission power are based on the same application concept, and the principles for solving the problem are similar. Therefore, the implementation of the device for determining the transmission power and the method for determining the transmission power can refer to each other, and the repeated parts will not be repeated.

[0331] The embodiment of the present application also provides a device for determining transmission power, which is applied to a centralized unit. For example, see Fig.12 As shown, Fig.12 One of the structural schematic diagrams of a transmission power determination device provided in an embodiment of the present application, the transmission power determination device 120 may include:

[0332] The receiving unit 1201 is used to receive the current transmission power of each of the multiple transmitting and receiving points sent by the distribution unit, and the current transmission power of each of the transmitting and receiving points is determined based on the strength of the reference signal sent by the terminal served by the transmitting and receiving point.

[0333] The first processing unit 1202 is used to determine, for each terminal, a reference transmit power of each of the at least two transmit-receive points serving the terminal according to each current transmit power of the at least two transmit-receive points among the multiple transmit-receive points.

[0334] The second processing unit 1203 is used to determine the target transmit power of each transmitting and receiving point according to at least one reference transmit power of each transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

[0335] By way of example, in an embodiment of the present application, the first processing unit 1202 is specifically used to determine the minimum transmit power among the current transmit powers of each of the at least two transmit and receive points; and determine the reference transmit power of each of the at least two transmit and receive points based on the minimum transmit power.

[0336] By way of example, in an embodiment of the present application, the first processing unit 1202 is specifically used to configure the reference transmit power of the transmit and receive point corresponding to the minimum transmit power to full power; determine the reference transmit power of the other transmit and receive points based on the minimum transmit power, the full power, and the current transmit power of the other transmit and receive points; the other transmit and receive points are the transmit and receive points among the at least two transmit and receive points except the transmit and receive point corresponding to the minimum transmit power.

[0337] For example, in the embodiment of the present application, the full power is based on P max =maxTxPwr+10×log 10 (RFNumbers) identified.

[0338] Among them, the P max represents the full power, maxTxPwr represents the single-channel maximum transmit power of the transmit / receive point, and PFNumbers represents the number of transmit antennas of the transmit / receive point.

[0339] For example, in the embodiment of the present application, the first processing unit 1202 is specifically configured to process the target =P max +(P min -P current )+δ1, determine the reference transmit power of the other transmit and receive points.

[0340] Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P currentrepresents the current transmission power of the other transmitting and receiving points, and δ1 represents the first transmission power floating value.

[0341] For example, in the embodiment of the present application, the first processing unit 1202 is specifically configured to: Determine the reference transmit power of the other transmit and receive points.

[0342] Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ2 represents the second transmission power floating value.

[0343] By way of example, in an embodiment of the present application, the second processing unit 1203 is specifically used to, for each of the transmitting and receiving points, if the transmitting and receiving point corresponds to a reference transmit power, determine the one reference transmit power as the target transmit power of the transmitting and receiving point; if the transmitting and receiving point corresponds to at least two reference transmit powers, then determine the maximum reference transmit power among the at least two reference transmit powers as the target transmit power of the transmitting and receiving point.

[0344] By way of example, in an embodiment of the present application, the receiving unit 1201 is specifically used to receive the current transmission power of each of the multiple transmitting and receiving points sent by the distribution unit when the position of any terminal among the terminals served by each of the multiple transmitting and receiving points changes.

[0345] For example, in the embodiment of the present application, the device also includes a sending unit.

[0346] The sending unit is used to send a configuration command to the distribution unit to which each of the transmitting and receiving points belongs, and the configuration command is used to instruct the distribution unit to configure the target transmission power for the corresponding transmitting and receiving point.

[0347] It should be noted here that the transmission power determination device 120 provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the above-mentioned execution subject is a centralized unit, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0348] The present application also provides a device for determining transmission power, which is applied to a distribution unit. For example, see Fig.13 As shown, Fig.13 The second structural diagram of the device for determining the transmit power provided in the embodiment of the present application, the device for determining the transmit power 130 may include:

[0349] A sending unit 130, configured to send the current transmission power of the transmission and receiving point corresponding to the distribution unit to the central unit;

[0350] The current transmit power is used to determine the target transmit power of the transmit-receive point, and the target transmit power is used by the transmit-receive point to send a signal to a served terminal based on the target transmit power.

[0351] For example, in the embodiment of the present application, the device further includes a first receiving unit and a processing unit.

[0352] The first receiving unit is used to receive the reference signal sent by the transmitting and receiving point.

[0353] The processing unit is used to determine the current transmission power of the transmitting and receiving point according to the strength of the reference signal sent by the transmitting and receiving point.

[0354] For example, in the embodiment of the present application, the sending unit 130 is specifically configured to send the current transmission power of the transmitting and receiving point to the central unit when the position of any terminal served by the transmitting and receiving point changes.

[0355] For example, in the embodiment of the present application, the apparatus further includes a second receiving unit and a configuration unit.

[0356] The second receiving unit is used to receive a configuration command sent by the centralized unit, where the configuration command is used to instruct the distributed unit to configure the target transmit power for the transmitting and receiving point.

[0357] The configuration unit is used to configure the target transmission power for the transmitting and receiving point.

[0358] It should be noted here that the transmission power determination device 130 provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the above-mentioned execution subject is a distribution unit, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0359] The present application also provides a device for determining transmission power, which is applied to a transmission receiving point. For example, see Fig.14 As shown, Fig.14 The third structural diagram of the device for determining the transmission power provided in the embodiment of the present application, the device for determining the transmission power 140 may include:

[0360] The sending unit 1401 is used to send a reference signal to the distribution unit to which the transmitting and receiving point belongs.

[0361] The reference signal is used to determine the target transmit power of the transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

[0362] For example, in the embodiment of the present application, the device further includes a receiving unit and a processing unit.

[0363] The receiving unit is configured to receive a current reference signal sent by the terminal.

[0364] The processing unit is used to determine whether the position of the terminal changes according to the strength of the current reference signal and the strength of the historical reference signal received last time and sent by the terminal.

[0365] The sending unit 1401 is specifically configured to send the reference signal to the distribution unit when it is determined that the location of the terminal changes.

[0366] It should be noted here that the transmission power determination device 140 provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the above-mentioned execution subject is the transmitting and receiving point, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0367] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a 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.

[0368] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially 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, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0369] On the other hand, an embodiment of the present application also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the methods provided by the above embodiments, including: receiving a current transmit power of each of the multiple transmitting and receiving points sent by a distribution unit, the current transmit power of each of the transmitting and receiving points being determined based on the strength of a reference signal sent by a terminal served by the transmitting and receiving point; for each terminal, determining a reference transmit power of each of the at least two transmitting and receiving points serving the terminal among the multiple transmitting and receiving points; determining a target transmit power of each of the transmitting and receiving points based on at least one reference transmit power of each of the transmitting and receiving points, the target transmit power being used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

[0370] Alternatively, the current transmit power of the transmit and receive point corresponding to the distribution unit is sent to the centralized unit; wherein the current transmit power is used to determine the target transmit power of the transmit and receive point, and the target transmit power is used by the transmit and receive point to send a signal to the served terminal based on the target transmit power.

[0371] Alternatively, a reference signal is sent to a distribution unit to which the transmitting and receiving point belongs; wherein the reference signal is used to determine a target transmit power of the transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to a served terminal based on the target transmit power.

[0372] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD)), etc.

[0373] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0374] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0375] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0376] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0377] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A method for determining transmission power, characterized in that: Applied to a centralized unit, the method comprises: Receiving current transmit power of each of the multiple transmit and receive points sent by the distribution unit, where the current transmit power of each of the transmit and receive points is determined based on the strength of a reference signal sent by a terminal served by the transmit and receive point; For each terminal, determine, according to current transmit powers of at least two transmit-receive points serving the terminal among the multiple transmit-receive points, respective reference transmit powers of the at least two transmit-receive points; According to at least one reference transmit power of each transmit / receive point, a target transmit power of each transmit / receive point is determined, and the target transmit power is used by the transmit / receive point to send a signal to a served terminal based on the target transmit power.

2. The method according to claim 1, characterized in that The determining, according to the current transmit powers of the at least two transmit-receive points serving the terminal among the multiple transmit-receive points, the reference transmit powers of the at least two transmit-receive points, respectively, comprises: Determine a minimum transmit power among the current transmit powers of the at least two transmit / receive points; The reference transmit power of each of the at least two transmit-receive points is determined according to the minimum transmit power.

3. The method according to claim 2, characterized in that The determining, according to the minimum transmit power, the reference transmit power of each of the at least two transmit-receive points comprises: Configuring the reference transmit power of the transmit and receive point corresponding to the minimum transmit power to full power; Determine the reference transmit power of the other transmit receiving points based on the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points; the other transmit receiving points are the transmit receiving points among the at least two transmit receiving points except the transmit receiving point corresponding to the minimum transmit power.

4. The method according to claim 3, characterized in that The full power is based on P max =maxTxPwr+10×log 10 (RFNumbers) determined; Among them, the P max represents the full power, maxTxPwr represents the single-channel maximum transmit power of the transmit-receive point, and RFNumbers represents the number of transmit antennas of the transmit-receive point.

5. The method according to claim 3, characterized in that: The determining, according to the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points, the reference transmit power of the other transmit receiving points includes: According to P target =P max +(P min -P current )+δ1, determining the reference transmit power of the other transmit and receive points; Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ1 represents the first transmission power floating value.

6. The method according to claim 3, characterized in that The determining, according to the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points, the reference transmit power of the other transmit receiving points includes: according to Determining reference transmit powers of the other transmit and receive points; Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ2 represents the second transmission power floating value.

7. The method according to any one of claims 1 to 6, characterized in that: The determining, according to at least one reference transmit power of each transmit / receive point, a target transmit power of each transmit / receive point comprises: For each of the transmitting and receiving points, if the transmitting and receiving point corresponds to a reference transmitting power, determining the one reference transmitting power as the target transmitting power of the transmitting and receiving point; If the transmitting and receiving point corresponds to at least two reference transmitting powers, the maximum reference transmitting power among the at least two reference transmitting powers is determined as the target transmitting power of the transmitting and receiving point.

8. The method according to any one of claims 1 to 6, characterized in that: The current transmission power of each of the multiple transmission receiving points sent by the receiving distribution unit includes: When the position of any terminal among the terminals respectively served by the multiple transmitting and receiving points changes, the current transmission power of each of the multiple transmitting and receiving points sent by the distribution unit is received.

9. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: A configuration command is sent to a distribution unit to which each of the transmitting and receiving points belongs, wherein the configuration command is used to instruct the distribution unit to configure the target transmitting power for the corresponding transmitting and receiving point.

10. A method for determining transmission power, characterized in that: Applied to a distribution unit, the method comprises: Sending the current transmission power of the transmission and receiving point corresponding to the distribution unit to the centralized unit; The current transmit power is used to determine the target transmit power of the transmit-receive point, and the target transmit power is used by the transmit-receive point to send a signal to a served terminal based on the target transmit power.

11. The method according to claim 10, characterized in that The method further comprises: Receiving a reference signal sent by the transmitting and receiving point; The current transmission power of the transmitting and receiving point is determined according to the strength of the reference signal sent by the transmitting and receiving point.

12. The method according to claim 10 or 11, characterized in that: The sending the current transmission power of the transmission and receiving point corresponding to the distribution unit to the centralized unit includes: In case that the position of any terminal served by the transmit / receive point changes, the current transmit power of the transmit / receive point is sent to the central unit.

13. The method according to claim 10 or 11, characterized in that: The method further comprises: receiving a configuration command sent by the centralized unit, wherein the configuration command is used to instruct the distributed unit to configure the target transmit power for the transmitting and receiving point; A target transmit power is configured for the transmit / receive point.

14. A method for determining transmission power, characterized in that: Applied to a transmitting and receiving point, the method comprises: Sending a reference signal to a distribution unit to which the transmitting and receiving point belongs; The reference signal is used to determine the target transmit power of the transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

15. The method according to claim 14, characterized in that The sending of a reference signal to a distribution unit to which the transmitting and receiving point belongs includes: receiving a current reference signal sent by the terminal; Determining whether the position of the terminal changes according to the strength of the current reference signal and the strength of a historical reference signal previously received and sent by the terminal; In the case where it is determined that the location of the terminal changes, the reference signal is sent to the distribution unit.

16. A centralized unit, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receiving current transmit power of each of the multiple transmit and receive points sent by the distribution unit, where the current transmit power of each of the transmit and receive points is determined based on the strength of a reference signal sent by a terminal served by the transmit and receive point; For each terminal, determine, according to current transmit powers of at least two transmit-receive points serving the terminal among the multiple transmit-receive points, respective reference transmit powers of the at least two transmit-receive points; According to at least one reference transmit power of each transmit / receive point, a target transmit power of each transmit / receive point is determined, and the target transmit power is used by the transmit / receive point to send a signal to a served terminal based on the target transmit power.

17. The centralized unit according to claim 16, characterized in that The determining, according to the current transmit powers of the at least two transmit-receive points serving the terminal among the multiple transmit-receive points, the reference transmit powers of the at least two transmit-receive points, respectively, comprises: Determine a minimum transmit power among the current transmit powers of the at least two transmit / receive points; The reference transmit power of each of the at least two transmit-receive points is determined according to the minimum transmit power.

18. The centralized unit according to claim 17, characterized in that The determining, according to the minimum transmit power, the reference transmit power of each of the at least two transmit-receive points comprises: Configuring the reference transmit power of the transmit and receive point corresponding to the minimum transmit power to full power; Determine the reference transmit power of the other transmit receiving points based on the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points; the other transmit receiving points are the transmit receiving points among the at least two transmit receiving points except the transmit receiving point corresponding to the minimum transmit power.

19. The centralized unit according to claim 18, characterized in that The full power is based on P max =maxTxPwr+10×log 10 (RFNumbers) determined; Among them, the P max represents the full power, maxTxPwr represents the single-channel maximum transmit power of the transmit-receive point, and RFNumbers represents the number of transmit antennas of the transmit-receive point.

20. The centralized unit according to claim 18, characterized in that The determining, according to the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points, the reference transmit power of the other transmit receiving points includes: According to P target =P max +(P min -P current )+δ1, determining the reference transmit power of the other transmit and receive points; Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ1 represents the first transmission power floating value.

21. The centralized unit according to claim 18, characterized in that The determining, according to the minimum transmit power, the full power, and the current transmit power of the other transmit receiving points, the reference transmit power of the other transmit receiving points includes: according to Determining reference transmit powers of the other transmit and receive points; Among them, P target represents the target transmission power of the other transmitting and receiving points, P max represents the full power, P min represents the minimum transmission power, P current represents the current transmission power of the other transmitting and receiving points, and δ2 represents the second transmission power floating value.

22. The centralized unit according to any one of claims 16 to 21, characterized in that: The determining, according to at least one reference transmit power of each transmit / receive point, a target transmit power of each transmit / receive point comprises: For each of the transmitting and receiving points, if the transmitting and receiving point corresponds to a reference transmitting power, determining the one reference transmitting power as the target transmitting power of the transmitting and receiving point; If the transmitting and receiving point corresponds to at least two reference transmitting powers, the maximum reference transmitting power among the at least two reference transmitting powers is determined as the target transmitting power of the transmitting and receiving point.

23. The centralized unit according to any one of claims 16 to 21, characterized in that: The current transmission power of each of the multiple transmission receiving points sent by the receiving distribution unit includes: When the position of any terminal among the terminals respectively served by the multiple transmitting and receiving points changes, the current transmission power of each of the multiple transmitting and receiving points sent by the distribution unit is received.

24. The centralized unit according to any one of claims 16 to 21, characterized in that: The processor is further configured to perform the following operations: A configuration command is sent to a distribution unit to which each of the transmitting and receiving points belongs, wherein the configuration command is used to instruct the distribution unit to configure the target transmitting power for the corresponding transmitting and receiving point.

25. A distribution unit, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Sending the current transmission power of the transmission and receiving point corresponding to the distribution unit to the centralized unit; The current transmit power is used to determine the target transmit power of the transmit-receive point, and the target transmit power is used by the transmit-receive point to send a signal to a served terminal based on the target transmit power.

26. The distribution unit according to claim 25, characterized in that The processor is further configured to perform the following operations: Receiving a reference signal sent by the transmitting and receiving point; The current transmission power of the transmitting and receiving point is determined according to the strength of the reference signal sent by the transmitting and receiving point.

27. The distribution unit according to claim 25 or 26, characterized in that The sending the current transmission power of the transmission and receiving point corresponding to the distribution unit to the centralized unit includes: In case that the position of any terminal served by the transmit / receive point changes, the current transmit power of the transmit / receive point is sent to the central unit.

28. The distribution unit according to claim 25 or 26, characterized in that The processor is further configured to perform the following operations: receiving a configuration command sent by the centralized unit, wherein the configuration command is used to instruct the distributed unit to configure the target transmit power for the transmitting and receiving point; A target transmit power is configured for the transmit / receive point.

29. A transmitting and receiving point, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Sending a reference signal to a distribution unit to which the transmitting and receiving point belongs; The reference signal is used to determine the target transmit power of the transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

30. The transmitting and receiving point according to claim 29, characterized in that: The sending of a reference signal to a distribution unit to which the transmitting and receiving point belongs includes: receiving a current reference signal sent by the terminal; Determining whether the position of the terminal changes according to the strength of the current reference signal and the strength of a historical reference signal previously received and sent by the terminal; In the case where it is determined that the location of the terminal changes, the reference signal is sent to the distribution unit.

31. A device for determining transmission power, characterized in that: Applied to a centralized unit, the device comprises: A receiving unit, configured to receive current transmit power of each of the plurality of transmit and receive points sent by the distribution unit, wherein the current transmit power of each of the transmit and receive points is determined based on the strength of a reference signal sent by a terminal served by the transmit and receive point; A first processing unit is configured to determine, for each terminal, a reference transmit power of each of the at least two transmit-receiving points serving the terminal according to each current transmit power of each of the at least two transmit-receiving points among the multiple transmit-receiving points; The second processing unit is used to determine the target transmit power of each of the transmit and receive points according to at least one reference transmit power of each of the transmit and receive points, and the target transmit power is used by the transmit and receive point to send a signal to the served terminal based on the target transmit power.

32. A device for determining transmission power, characterized in that: Applied to a distribution unit, the device comprises: A sending unit, configured to send the current transmission power of the transmitting and receiving points corresponding to the distributed unit to the centralized unit; The current transmit power is used to determine the target transmit power of the transmit-receive point, and the target transmit power is used by the transmit-receive point to send a signal to a served terminal based on the target transmit power.

33. A device for determining transmission power, characterized in that: Applied to a transmitting and receiving point, the device comprises: A sending unit, configured to send a reference signal to a distribution unit to which the transmitting and receiving point belongs; The reference signal is used to determine the target transmit power of the transmitting and receiving point, and the target transmit power is used by the transmitting and receiving point to send a signal to the served terminal based on the target transmit power.

34. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the method for determining the transmission power described in any one of claims 1 to 9; or, to execute the method for determining the transmission power described in any one of claims 10 to 13; or, to execute the method for determining the transmission power described in any one of claims 14 to 15.

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