CN113519187B - Power adjustment method and device and terminal - Google Patents
Power adjustment method and device and terminal Download PDFInfo
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- CN113519187B CN113519187B CN201980093290.XA CN201980093290A CN113519187B CN 113519187 B CN113519187 B CN 113519187B CN 201980093290 A CN201980093290 A CN 201980093290A CN 113519187 B CN113519187 B CN 113519187B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
Abstract
A power adjustment method, a device and a terminal. The power adjustment method comprises the following steps: the terminal receives the power control information; the terminal determines a first power adjustment amount and power adjustment timeliness corresponding to the first power adjustment amount based on the power control information.
Description
Technical Field
The embodiment of the application relates to the technical field of mobile communication, in particular to a power adjustment method, a power adjustment device and a terminal.
Background
In the transmit power control (Transmit Power Control, TPC) mechanism, if the terminal needs to increase the transmit power of the service data, the network transmits TPC signaling indicating the increase in power, and if the terminal needs to decrease the transmit power of the service data, the network transmits TPC signaling indicating the decrease in power, so that the transmit power of the service data can be ensured to be within a normal range, and excessive interference to other service data can not be caused. However, this TPC mechanism requires at least 2 TPC signaling transmissions, and the signaling overhead is large.
Disclosure of Invention
The embodiment of the application provides a power adjustment method, a power adjustment device and a terminal.
The power adjustment method provided by the embodiment of the application comprises the following steps:
The terminal receives the power control information;
and determining a first power adjustment amount and power adjustment timeliness corresponding to the first power adjustment amount based on the power control information.
The power adjusting device provided by the embodiment of the application comprises:
a receiving unit for receiving power control information;
and the determining unit is used for determining a first power adjustment amount and power adjustment timeliness corresponding to the first power adjustment amount based on the power control information.
The terminal provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the power adjustment method.
The chip provided by the embodiment of the application is used for realizing the power adjustment method.
Specifically, the chip includes: and a processor for calling and running the computer program from the memory, so that the device mounted with the chip executes the power adjustment method.
The computer readable storage medium provided by the embodiment of the application is used for storing a computer program, and the computer program enables a computer to execute the power adjustment method.
The computer program product provided by the embodiment of the application comprises computer program instructions, wherein the computer program instructions enable a computer to execute the power adjustment method.
The computer program provided by the embodiment of the application, when running on a computer, causes the computer to execute the power adjustment method.
Through the technical scheme, the adjustment of the transmission power can be realized by using 1 TPC signaling (namely power control information), so that the terminal can automatically adjust the transmission power back to the normal range after the aging of the adjustment of the transmission power is finished, and signaling overhead is reduced. In addition, the transmission mechanism of the power control information in the embodiment of the application does not increase the transmission/detection requirements of an additional physical downlink control channel (Physical Downlink Control Channel, PDCCH), and is convenient to realize.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;
fig. 2 is a schematic diagram of an uplink transmission collision according to an embodiment of the present application;
Fig. 3 is a flowchart illustrating a power adjustment method according to an embodiment of the present application;
fig. 4 is a second flowchart of a power adjustment method according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a URLLC and eMBB scheduling timing and resource conflict provided by an embodiment of the present application;
fig. 6 is a schematic structural diagram of a power adjustment device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;
FIG. 8 is a schematic block diagram of a chip of an embodiment of the application;
fig. 9 is a schematic block diagram of a communication system provided by an embodiment of the present application.
Detailed Description
The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The technical scheme of the embodiment of the application can be applied to various communication systems, such as: long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), systems, 5G communication systems, future communication systems, or the like.
An exemplary communication system 100 to which embodiments of the present application may be applied is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area. Alternatively, the network device 110 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network device in a 5G network, or a network device in a future communication system, etc.
The communication system 100 further includes at least one terminal 120 located within the coverage area of the network device 110. "terminal" as used herein includes, but is not limited to, connection via wireline, such as via public-switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminals arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN, etc.
Alternatively, direct to Device (D2D) communication may be performed between the terminals 120.
Alternatively, the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.
Fig. 1 illustrates one network device and two terminals, alternatively, the communication system 100 may include multiple network devices and each network device may include other numbers of terminals within its coverage area, which is not limited by the embodiment of the present application.
Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited by the embodiment of the present application.
It should be understood that a device having a communication function in a network/system according to an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal 120 with communication functions, where the network device 110 and the terminal 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.
It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following describes the technical solutions related to the embodiments of the present application.
Multi-user interference
The 5G NR system introduces two services, low latency high reliability communications (URLLC, ultra Reliable Low Latency Communication) and enhanced mobile broadband (eMBB, enhance Mobile Broadband). URLLC is characterized by ultra-high reliability (e.g., 99.999%) transmissions within extreme delays (e.g., 1 ms), ebmb is characterized by being delay insensitive, but the number of transmissions can be large. For scenarios where URLLC and eMBB coexist, in order to achieve URLLC immediate transmission, URLLC and eMBB may collide, i.e. URLLC occupies resources already allocated to eMBB. When the URLLC and eMBB transmissions collide, the URLLC and eMBB may interfere with each other, thereby affecting demodulation performance of the URLLC and eMBB, and retransmission may solve the effect, but may cause an increase in transmission delay of the URLLC.
For the problem of collision of upstream URLLC and eMBB transmissions, as shown in fig. 2. There are two main solutions: 1) And stopping eMBB transmission, and reducing interference to URLLC. 2) The URLLC transmitting power is improved, and even if eMBB interference exists, the received signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR) of the URLLC can be guaranteed to meet the demodulation requirement. The former interference cancellation is thorough but requires an increase in terminal complexity for the eMBB. The latter guarantees the received SINR by increasing the useful signal power, requiring only URLLC for enhancement.
Closed loop power control
NR Rel15 indicates closed loop adjustment power using group common DCI (Group common DCI) (e.g., DCI format 2_2) and UE specific DCI (UE specific DCI) (e.g., DCI format 0_0/0_1). Wherein, the closed loop adjusting power comprises the following two modes, mode 1) accumulative adjustment; mode 2) absolute value adjustment. For mode 1), if the terminal receives the power adjustment information a at time n, adjusting the uplink transmission power by a db; if the terminal receives the power adjustment information b at the time n+x, the uplink transmission power is adjusted by a+bdb, and so on. For mode 2), if the terminal receives the power adjustment information a at time n, adjusting the uplink transmission power by a db; if the terminal receives the power adjustment information b at the time n+x, the uplink transmission power is adjusted by b db, and so on. The mode of closed loop regulated power used by the terminal is configured by higher layer signaling.
According to the technical scheme, the receiving SINR can be ensured by improving the URLLC sending power and the useful signal power, but the orthogonality of the URLLC and the eMBB user pilot frequency is ensured. If the TPC mechanism is directly used, if the terminal is required to raise the transmission power of the service data, the network transmits TPC signaling representing the power improvement, and if the terminal is required to lower the transmission power of the service data, the network transmits TPC signaling representing the power reduction, so that the transmission power of the service data can be ensured to be in a normal range, and excessive interference to other service data can not be caused. In such a case, when URLLC and eMBB transmissions collide, at least 2 TPC signaling transmissions are required, and the signaling overhead is large. For this reason, the following technical solutions of the embodiments of the present application are provided.
Fig. 3 is a flowchart of a power adjustment method according to an embodiment of the present application, as shown in fig. 3, the power adjustment method includes the following steps:
step 301: the terminal receives the power control information.
In the embodiment of the application, the terminal receives the power control information sent by the network device, wherein the network device may be a base station, for example, a gNB.
In an alternative embodiment of the present application, the power control information may be TPC signaling or an open-loop parameter (open-loop parameter). It should be noted that the specific implementation of the power control information is not limited to the above two types.
It should be noted that, the "terminal receiving" in the embodiment of the present application may be replaced by "terminal parsing" or "terminal receiving and parsing".
Step 302: and the terminal determines a first power adjustment amount and power adjustment timeliness corresponding to the first power adjustment amount based on the power control information.
In the embodiment of the present application, the power control information includes at least one power adjustment amount, and the terminal determines a first power adjustment amount to be used from the at least one power adjustment amount, and determines power adjustment timeliness corresponding to the first power adjustment amount.
Further, optionally, the terminal adjusts the transmission power based on the first power adjustment amount; and the terminal determines the duration of the adjusted transmitting power based on the power adjustment timeliness. In the embodiment of the present application, the terminal adjusts the transmission power based on the first power adjustment amount, and may adopt any one of the following models for adjustment: mode 1) cumulative adjustment; mode 2) absolute value adjustment.
In the embodiment of the present application, the adjustment of the transmission power has timeliness (referred to as power adjustment timeliness), and the terminal determines the duration of the adjusted transmission power based on the power adjustment timeliness. Specifically, the power adjustment timeliness may be a first timeliness or a second timeliness, and it should be noted that the first timeliness may also be referred to as long-term validity, and the second timeliness may also be referred to as fixed time window validity. The timeliness will be described below.
First timeliness (also referred to as long-term effectiveness)
The duration of the adjusted transmit power corresponding to the first timeliness includes a time between a first start time and a first end time; the first end time is the time when the first event occurs.
Further optionally, the first starting time is a time when the terminal receives the power control information.
When the power adjustment timeliness is long-term valid, the start time of the transmission power adjustment is the time when the terminal receives (or detects) the power control information, and the end time of the transmission power adjustment is not limited. Further, the end time of the transmit power adjustment is determined based on a time at which a first event occurs, which in one example is the terminal receiving power control information again.
In a specific implementation, the terminal adjusts the transmission power from the first transmission power to the second transmission power based on the first power adjustment amount, and then maintains the second transmission power unchanged until the power control information is received again.
Second timeliness (also referred to as fixed time window validity)
The duration of the adjusted transmit power corresponding to the second timeliness includes a time between a second start time and a second end time; the second starting time is the starting time of the first time window, and the second ending time is the ending time of the first time window.
Optionally, the length of the first time window is fixed.
In an alternative embodiment, the first time window includes at least one data transmission opportunity after a first time, the first time being a time when the terminal receives (or detects) the power control information.
In another alternative embodiment, the first time window includes at least one time unit after a first time, where the first time is a time when the terminal receives (or detects) the power control information, and the time unit is a symbol (symbol) or a slot (slot).
In the embodiment of the present application, the length of the first time window is preset or configured by high-layer signaling.
Specifically, when the terminal adjusts the transmission power from the first transmission power to the second transmission power based on the first power adjustment amount, the second transmission power is maintained unchanged in a first time window, after the first time window is finished, the transmission power is restored from the second transmission power to the first transmission power, and the first transmission power is maintained unchanged until the power control information is received again.
In the embodiment of the present application, the terminal may determine the power adjustment timeliness corresponding to the first power adjustment amount by any one of the following manners:
● Mode one: and the terminal determines the timeliness of the power adjustment corresponding to the first power adjustment amount based on the first threshold information.
Specifically, if the first power adjustment amount is smaller than or equal to the first threshold information, the terminal determines that the power adjustment timeliness corresponding to the first power adjustment amount is the first timeliness; and if the first power adjustment amount is larger than the first threshold information, the terminal determines that the power adjustment timeliness corresponding to the first power adjustment amount is second timeliness.
In the embodiment of the present application, the first threshold information is preset or configured by a high-layer signaling.
● Mode two: if the first power adjustment quantity belongs to a first power adjustment quantity set, the terminal determines that the power adjustment timeliness corresponding to the first power adjustment quantity is first timeliness; and if the first power adjustment quantity belongs to a second power adjustment quantity set, the terminal determines that the power adjustment timeliness corresponding to the first power adjustment quantity is second timeliness.
Here, the first power adjustment amount set includes at least one power adjustment amount, and power adjustment timeliness corresponding to each power adjustment amount in the first power adjustment amount set is a first timeliness; the second power adjustment amount set includes at least one power adjustment amount, and power adjustment timeliness corresponding to each power adjustment amount in the second power adjustment amount set is second timeliness.
Further optionally, the intersection of the first set of power adjustment amounts and the second set of power adjustment amounts is empty, i.e. the first set of power adjustment amounts and the second set of power adjustment amounts have no intersection.
In the embodiment of the present application, at least one of the first power adjustment amount set and the second power adjustment amount set is preset or configured by high-layer signaling.
For example: the terminal receives higher layer signaling (such as RRC signaling) sent by a network device (such as a base station), wherein the higher layer signaling carries first configuration information, and the first configuration information comprises the first power adjustment amount set and/or the second power adjustment amount set.
As another example: and the terminal determines the first power adjustment quantity set and/or the second power adjustment quantity set according to protocol convention.
It should be noted that, the "preset" related to the embodiment of the present application may be replaced by "protocol convention".
Alternatively, the "transmission power" related to the embodiment of the present application may be replaced by "uplink transmission power" or "uplink power".
According to the technical scheme provided by the embodiment of the application, when the URLLC and the eMBB generate transmission conflict, the sending power adjustment aiming at the URLLC is realized by using 1 time of TPC signaling, the terminal adjusts the sending power according to the power adjustment amount in the TPC signaling, and after the aging is finished, the sending power is automatically adjusted to the normal range, so that the signaling overhead is reduced. According to the technical scheme provided by the embodiment of the application, the useful signal power of the service data is improved by adjusting the transmission power of the service data, and the SINR of the service data is ensured to meet the transmission requirement of the service data.
Fig. 4 is a second flow chart of a power adjustment method according to an embodiment of the present application, as shown in fig. 4, the power adjustment method includes the following steps:
step 401: the terminal receives the power control information and acquires a first power adjustment amount from the power control information.
Step 402: the terminal determines the power adjustment timeliness corresponding to the first power adjustment amount, if the power adjustment timeliness is the first timeliness, the step 403 is executed, and if the power adjustment timeliness is the second timeliness, the step 404 is executed.
Here, the first timeliness is used to indicate that the timeliness of the transmit power adjustment is long-term valid. The second timeliness is used to indicate that the timeliness of the transmit power adjustment is valid for a fixed time window.
Step 403: the terminal adjusts the transmission power according to the first power adjustment amount, and the adjustment of the transmission power is valid for a long period of time until step 401 is re-performed.
Step 404: the terminal adjusts the transmission power according to the first power adjustment amount, and the adjustment of the transmission power is effective in a fixed time window.
Step 405: the terminal determines whether the end time of the first time window is reached, if yes, step 406 is executed, and if not, the adjustment of the transmission power is maintained.
Step 406: the adjustment of the current transmit power is reversed until step 401 is re-performed.
The following describes the technical solution of the embodiment of the present application by way of example with reference to specific application examples.
Example one
(1) And the network equipment receives the uplink URLLC service transmission request and determines transmission resources allocated for the URLLC according to the information such as the coding rate and the like which can be used by the terminal currently according to the data quantity of the URLLC. If the transmission resources allocated for URLLC collide with the resources already allocated for use by the eMBB, adjustments to the power of URLLC need to be taken into account.
Since the scheduling decisions and scheduling information transmissions of both URLLC and eMBB are unsynchronized, whereas URLLC is delay sensitive, i.e. does not have enough time to wait for idle resource transmissions, URLLC and eMBB resource collisions are unavoidable, as shown in fig. 5, terminal 3 transmitting eMBB and terminal 2 transmitting URLLC collide.
(2) The network device transmits power control information to adjust the transmit power of the URLLC so that the URLLC has sufficient SINR when decoded, and reliability of the URLLC is ensured.
If the network device predicts that the interference energy of the terminal 3 is X dB (e.g. 3 dB), the power control information instructs the terminal 2 to increase the transmission power by X dB (e.g. 3 dB), so that the SINR of the terminal 2 remains unchanged, and the reliability thereof meets the expected target. In general, the network device determines power control information (i.e., a power adjustment amount) according to the collision situation and transmits the power control information to the terminal.
(3) The terminal receives power control information, where the power control information at least includes a power adjustment amount (increasing or decreasing), and the power control information is carried in a scheduling DCI for transmission, or may be carried in a TPC dedicated DCI for transmission.
The terminal receives the PDCCH according to a preset PDCCH detection rule, and analyzes whether the current PDCCH contains DCI and the type of the DCI sent to the terminal.
The range of the power adjustment amount in the power control information should include: 1) A long-term adjustment quantity set a (i.e., a first power adjustment quantity set) that can be used for long-term effective power adjustment; 2) The fixed time window effective adjustment amount set B (i.e., the second power adjustment amount set) may be used for fixed time window effective power adjustment. Wherein the long-term adjustment quantity set a and the fixed time window effective adjustment quantity set B are two independent sets without intersection.
(4) And the terminal performs corresponding operation based on the power control information. For example, the transmit power is adjusted based on the power control information, and the power adjustment is long-term active or fixed time window active. And transmitting service data based on the power adjustment result.
Time-based decision threshold TH for protocol engagement power adjustment information p Or agree on a set of adjustment amounts for use in different time-dependent power adjustments. The long-term effective power adjustment means that the transmission power is adjusted according to the current power control information, and the adjusted transmission power is kept until the next successful analysis of the power control information. The power adjustment fixed time window is valid, that is, the transmission power is adjusted according to the current power control information, and the adjusted transmission power is maintained in the agreed valid time window (i.e., the first time window), and the transmission power is recovered before adjustment after the valid time window. The validity time window agreed here may be one or several times after the reception of the power control information The number of data transmission opportunities, which may also be several symbols or time slots, should in principle contain at least the time of the URLLC and eMBB collision.
In one specific example, the current terminal transmission power is (P 1 +δ 0 ) When the power adjustment amount delta indicated in the DCI 1 The cumulative power adjustment mode transmission power needs to be adjusted to (P 1 +δ 0 +δ 1 ) Absolute value power adjustment mode transmission power needs to be adjusted to (P 1 +δ 1 )。
Case 1) when delta 1 Greater than TH p When, or delta 1 When the power adjustment belongs to the fixed time window adjustment quantity set B, the current power adjustment is considered to be maintained only in the effective time window, after the effective time window, the power adjustment fails, and the transmission power needs to be adjusted back (P 1 +δ 0 ) The transmit power is equal to (P before the next power control information resolution is successful 1 +δ 0 )。
Case 2) when delta 1 Not greater than TH p When, or delta 1 When the power control information belongs to the long-term effective adjustment quantity set A, the current power adjustment is considered to be effective for a long term, and the transmission power is equal to (P before the next power control information is successfully analyzed 1 +δ 0 +δ 1 ) Or (P) 1 +δ 1 )。
When the terminal uses the power control information, different ageing information (i.e. adjusting the effective time) needs to be selected based on different power adjustment amounts, so that the TPC transmission mechanisms can be used in both the case 1) and the case 2), and the terminal does not need to perform additional signaling detection. In case 1), at the end of the validity time window, the power adjustment fails, so that interference caused by the power adjustment to the system can be avoided when URLLC and eMBB do not collide.
Through the scheme, when the URLLC collides with eMBB resources, the sending power of the URLLC is adjusted (improved), so that the URLLC has enough SINR when decoding, and the reliability of the URLLC transmission is ensured. And no extra PDCCH transmission/detection requirements are added using the current power control information. One TPC signaling can realize the adjustment of the transmitting power, and the power adjustment is disabled after the aging time is over, so that the signaling overhead can be saved.
Example two
(1) The terminal receives power control information including at least a power adjustment amount (increase or decrease), which is carried in TPC dedicated DCI for transmission.
The terminal receives the PDCCH according to a preset PDCCH detection rule, and analyzes whether the current PDCCH contains DCI for transmitting the terminal and the type of the DCI.
The range of the power adjustment amount in the power control information should include: 1) A long-term adjustment quantity set a (i.e., a first power adjustment quantity set) that can be used for long-term effective power adjustment; 2) The fixed time window effective adjustment amount set B (i.e., the second power adjustment amount set) may be used for fixed time window effective power adjustment. Wherein the long-term adjustment quantity set a and the fixed time window effective adjustment quantity set B are two independent sets without intersection.
(2) And the terminal performs corresponding operation based on the power control information. For example, the transmit power is adjusted based on the power control information, and the power adjustment is long-term active or fixed time window active. And if the data transmission resources configured in advance exist, transmitting service data based on the power adjustment result.
Time-based decision threshold TH for protocol engagement power adjustment information p Or agree on a set of adjustment amounts for use in different time-dependent power adjustments. The long-term effective power adjustment means that the transmission power is adjusted according to the current power control information, and the adjusted transmission power is kept until the next successful analysis of the power control information. The power adjustment fixed time window is valid, that is, the transmission power is adjusted according to the current power control information, and the adjusted transmission power is maintained in the agreed valid time window (i.e., the first time window), and the transmission power is recovered before adjustment after the valid time window. The validity time window agreed here may be one or several data transmission opportunities after reception of the power control information, or may be several symbols or time slots, which in principle should contain at least the time of the URLLC and eMBB collision.
One specific example, currently The terminal transmission power is (P 1 +δ 0 ) When the power adjustment amount delta indicated in the DCI 1 If the integrated power adjustment mode is used, the transmission power needs to be adjusted to (P 1 +δ 0 +δ 1 ) If the absolute value power adjustment mode is used, the transmission power needs to be adjusted to (P 1 +δ 1 )。
Case 1) when delta 1 Greater than TH p When, or delta 1 When the power adjustment belongs to the fixed time window adjustment quantity set B, the current power adjustment is considered to be maintained only in the effective time window, after the effective time window, the power adjustment fails, and the transmission power needs to be adjusted back (P 1 +δ 0 ) The transmission power is equal to (P before the next power control information analysis is successful 1 +δ 0 ). For the data transfer of URLLC of CG-GRANT, if it occurs within the validity time window, power (P 1 +δ 0 +δ 1 ) Or (P) 1 +δ 1 ) And transmitting the data. If the data transmission occurs after the time window, power (P 1 +δ 0 ) And transmitting the data.
Case 2) when delta 1 Not greater than TH p When, or delta 1 When the power control information belongs to the long-term effective adjustment quantity set A, the current power adjustment is considered to be effective for a long term, and the transmission power is equal to (P before the next time the power control information is successfully analyzed 1 +δ 0 +δ 1 ) Or (P) 1 +δ 1 ). For data transfer of URLLC of CG-GRANT, power (P 1 +δ 0 +δ 1 ) Or (P) 1 +δ 1 ) And transmitting the data.
It should be noted that, the adjustment of the transmission power in the technical solution of the embodiment of the present application is mainly for uplink data, and is not limited thereto, and the technical solution of the embodiment of the present application may also be applied to adjustment of the transmission power of other signals, such as uplink control channels and sidestream data.
It should be noted that, in the embodiment of the present application, the transmission collision between URLLC and eMBB is taken as an example for illustration, and the present application is not limited to this, and other cases of different levels of service transmission collision may be applied to the technical solution of the embodiment of the present application.
Fig. 6 is a schematic structural diagram of a power adjustment device according to an embodiment of the present application, as shown in fig. 6, where the power adjustment device includes:
a receiving unit 601, configured to receive power control information;
a determining unit 602, configured to determine a first power adjustment amount and a power adjustment timeliness corresponding to the first power adjustment amount based on the power control information.
In an alternative embodiment of the present application, the apparatus further comprises:
an adjusting unit 603 configured to adjust the transmission power based on the first power adjustment amount;
the determining unit 602 is further configured to determine a duration of the adjusted transmission power based on the power adjustment timeliness.
In an alternative embodiment of the present application, the duration of the adjusted transmission power includes a time between a first start time and a first end time;
and when the power adjustment timeliness is the first timeliness, the first ending time is the time when the first event occurs.
In an optional embodiment of the present application, the first starting time is a time when the terminal receives the power control information.
In an optional embodiment of the application, the first event is that the terminal receives the power control information again.
In an alternative embodiment of the present application, the duration of the adjusted transmission power includes a time between a second start time and a second end time;
and when the power adjustment timeliness is the second timeliness, the second starting time is the starting time of the first time window, and the second ending time is the ending time of the first time window.
In an optional embodiment of the application, the first time window includes at least one data transmission opportunity after a first time, where the first time is a time when the terminal receives the power control information.
In an optional embodiment of the application, the first time window includes at least one time unit after a first time, where the first time is a time when the terminal receives the power control information. Further optionally, the time unit is a symbol or a slot.
In an optional embodiment of the present application, a length of the first time window is preset or configured by high-layer signaling.
In an alternative embodiment of the application, the device further comprises an adjustment unit 603;
the adjusting unit 603 adjusts the transmission power from the first transmission power to the second transmission power based on the first power adjustment amount, maintains the second transmission power unchanged in a first time window, restores the transmission power from the second transmission power to the first transmission power after the first time window is over, and maintains the first transmission power unchanged until the power control information is received again.
In an optional embodiment of the present application, the determining unit 602 is configured to determine power adjustment timeliness corresponding to the first power adjustment amount based on first threshold information.
In an optional embodiment of the present application, the determining unit 602 is configured to determine that the power adjustment timeliness corresponding to the first power adjustment amount is the first timeliness if the first power adjustment amount is less than or equal to the first threshold information; or if the first power adjustment amount is greater than the first threshold information, determining that the power adjustment timeliness corresponding to the first power adjustment amount is the second timeliness.
In an optional embodiment of the application, the first threshold information is preset or configured by a higher layer signaling.
In an optional embodiment of the present application, the determining unit 602 is configured to determine that the power adjustment timeliness corresponding to the first power adjustment amount is the first timeliness if the first power adjustment amount belongs to the first power adjustment amount set; or if the first power adjustment amount belongs to a second power adjustment amount set, the terminal determines that the power adjustment timeliness corresponding to the first power adjustment amount is the second timeliness.
In an optional embodiment of the present application, the first power adjustment amount set includes at least one power adjustment amount, and power adjustment timeliness corresponding to each power adjustment amount in the first power adjustment amount set is first timeliness;
the second power adjustment amount set includes at least one power adjustment amount, and power adjustment timeliness corresponding to each power adjustment amount in the second power adjustment amount set is second timeliness.
In an alternative embodiment of the present application, the intersection of the first set of power adjustment amounts and the second set of power adjustment amounts is empty.
In an alternative embodiment of the present application, at least one of the first set of power adjustment amounts and the second set of power adjustment amounts is preset or configured for higher layer signaling.
It should be understood by those skilled in the art that the above description of the power adjustment device according to the embodiment of the present application may be understood with reference to the description of the power adjustment method according to the embodiment of the present application.
Fig. 7 is a schematic block diagram of a communication device 700 according to an embodiment of the present application. The communication device may be a terminal or a network device, and the communication device 700 shown in fig. 7 includes a processor 710, where the processor 710 may call and execute a computer program from a memory to implement the method according to the embodiment of the present application.
Optionally, as shown in fig. 7, the communication device 700 may further comprise a memory 720. Wherein the processor 710 may call and run a computer program from the memory 720 to implement the method in an embodiment of the application.
Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into the processor 710.
Optionally, as shown in fig. 7, the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, and in particular, may send information or data to other devices or receive information or data sent by other devices.
Among other things, transceiver 730 may include a transmitter and a receiver. Transceiver 730 may further include antennas, the number of which may be one or more.
Optionally, the communication device 700 may be specifically a network device according to an embodiment of the present application, and the communication device 700 may implement a corresponding flow implemented by the network device in each method according to an embodiment of the present application, which is not described herein for brevity.
Optionally, the communication device 700 may be specifically a mobile terminal/terminal according to an embodiment of the present application, and the communication device 700 may implement a corresponding flow implemented by the mobile terminal/terminal in each method according to the embodiment of the present application, which is not described herein for brevity.
Fig. 8 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 800 shown in fig. 8 includes a processor 810, and the processor 810 may call and run a computer program from a memory to implement the method in the embodiment of the present application.
Optionally, as shown in fig. 8, chip 800 may also include memory 820. Wherein the processor 810 may call and run a computer program from the memory 820 to implement the method in embodiments of the present application.
Wherein the memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.
Optionally, the chip 800 may also include an input interface 830. The processor 810 may control the input interface 830 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.
Optionally, the chip 800 may further include an output interface 840. The processor 810 may control the output interface 840 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.
Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.
Optionally, the chip may be applied to a mobile terminal/terminal in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal in each method in the embodiment of the present application, which is not described herein for brevity.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.
Fig. 9 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in fig. 9, the communication system 900 includes a terminal 910 and a network device 920.
The terminal 910 may be configured to implement the corresponding functions implemented by the terminal in the above method, and the network device 920 may be configured to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.
It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.
It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.
The embodiment of the application also provides a computer readable storage medium for storing a computer program.
Optionally, the computer readable storage medium may be applied to a network device in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.
Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal in the embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal in each method of the embodiment of the present application, which is not described herein for brevity.
The embodiment of the application also provides a computer program product comprising computer program instructions.
Optionally, the computer program product may be applied to a network device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the network device in each method in the embodiment of the present application, which are not described herein for brevity.
Optionally, the computer program product may be applied to a mobile terminal/terminal in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal in each method of the embodiment of the present application, which are not described herein for brevity.
The embodiment of the application also provides a computer program.
Optionally, the computer program may be applied to a network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the network device in each method in the embodiment of the present application, which is not described herein for brevity.
Optionally, the computer program may be applied to a mobile terminal/terminal in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the mobile terminal/terminal in each method in the embodiment of the present application, which is not described herein for brevity.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (33)
1. A method of power adjustment, the method comprising:
the terminal receives the power control information;
the terminal determines a first power adjustment amount and power adjustment timeliness corresponding to the first power adjustment amount based on the power control information;
the terminal determining a first power adjustment amount and power adjustment timeliness corresponding to the first power adjustment amount based on the power control information, including:
the terminal determines a first power adjustment amount based on the power control information; if the first power adjustment amount is smaller than or equal to the first threshold information, the terminal determines that the power adjustment timeliness corresponding to the first power adjustment amount is the first timeliness; or if the first power adjustment amount is greater than the first threshold information, the terminal determines that the power adjustment timeliness corresponding to the first power adjustment amount is the second timeliness;
Or alternatively, the process may be performed,
the terminal determines a first power adjustment amount based on the power control information; if the first power adjustment quantity belongs to a first power adjustment quantity set, the terminal determines that the power adjustment timeliness corresponding to the first power adjustment quantity is first timeliness; or if the first power adjustment amount belongs to a second power adjustment amount set, the terminal determines that the power adjustment timeliness corresponding to the first power adjustment amount is the second timeliness.
2. The method of claim 1, wherein the method further comprises:
the terminal adjusts the transmission power based on the first power adjustment amount;
and the terminal determines the duration of the adjusted transmitting power based on the power adjustment timeliness.
3. The method of claim 2, wherein the duration of the adjusted transmit power comprises a time between a first start time and a first end time;
and when the power adjustment timeliness is the first timeliness, the first ending time is the time when the first event occurs.
4. A method according to claim 3, wherein the first start time is the time at which the terminal receives the power control information.
5. A method according to claim 3, wherein the first event is the terminal receiving power control information again.
6. The method of claim 2, wherein the duration of the adjusted transmit power comprises a time between a second start time and a second end time;
and when the power adjustment timeliness is the second timeliness, the second starting time is the starting time of the first time window, and the second ending time is the ending time of the first time window.
7. The method of claim 6, wherein the first time window comprises at least one data transmission opportunity after a first time, the first time being a time when the terminal receives the power control information.
8. The method of claim 6, wherein the first time window comprises at least one time unit after a first time, the first time being a time when the terminal received the power control information.
9. The method of claim 7 or 8, wherein the length of the first time window is preset or high layer signaling configured.
10. The method according to any one of claims 6 to 8, wherein the method further comprises:
The terminal adjusts the transmission power from the first transmission power to the second transmission power based on the first power adjustment amount, and then maintains the second transmission power unchanged in a first time window;
and after the first time window is finished, the terminal restores the transmission power from the second transmission power to the first transmission power, and maintains the first transmission power unchanged until the power control information is received again.
11. The method of any of claims 1 to 8, wherein the first threshold information is pre-set or high layer signaling configured.
12. The method according to any one of claims 1 to 8, wherein,
the first power adjustment quantity set comprises at least one power adjustment quantity, and the power adjustment timeliness corresponding to each power adjustment quantity in the first power adjustment quantity set is first timeliness;
the second power adjustment amount set includes at least one power adjustment amount, and power adjustment timeliness corresponding to each power adjustment amount in the second power adjustment amount set is second timeliness.
13. The method of any of claims 1-8, wherein an intersection of the first set of power adjustment amounts and the second set of power adjustment amounts is empty.
14. The method of any of claims 1-8, wherein at least one of the first and second sets of power adjustment amounts is pre-set or high layer signaling configured.
15. A terminal, the terminal comprising:
a receiving unit for receiving power control information;
a determining unit, configured to determine a first power adjustment amount and power adjustment timeliness corresponding to the first power adjustment amount based on the power control information;
the determining unit is used for determining a first power adjustment amount based on the power control information; if the first power adjustment amount is smaller than or equal to the first threshold information, determining that the power adjustment timeliness corresponding to the first power adjustment amount is the first timeliness; or if the first power adjustment amount is greater than the first threshold information, determining that the power adjustment timeliness corresponding to the first power adjustment amount is second timeliness;
or alternatively, the process may be performed,
the determining unit is used for determining a first power adjustment amount based on the power control information; if the first power adjustment quantity belongs to a first power adjustment quantity set, determining that the power adjustment timeliness corresponding to the first power adjustment quantity is first timeliness; or if the first power adjustment amount belongs to a second power adjustment amount set, determining that the power adjustment timeliness corresponding to the first power adjustment amount is the second timeliness.
16. The terminal of claim 15, wherein the terminal further comprises:
an adjustment unit configured to adjust a transmission power based on the first power adjustment amount;
the determining unit is further configured to determine a duration of the adjusted transmission power based on the power adjustment timeliness.
17. The terminal of claim 16, wherein the duration of the adjusted transmit power comprises a time between a first start time and a first end time;
and when the power adjustment timeliness is the first timeliness, the first ending time is the time when the first event occurs.
18. The terminal of claim 17, wherein the first starting time is a time when the terminal receives the power control information.
19. The terminal of claim 17, wherein the first event is the terminal receiving power control information again.
20. The terminal of claim 16, wherein the duration of the adjusted transmit power comprises a time between a second start time and a second end time;
and when the power adjustment timeliness is the second timeliness, the second starting time is the starting time of the first time window, and the second ending time is the ending time of the first time window.
21. The terminal of claim 20, wherein the first time window includes at least one data transmission opportunity after a first time, the first time being a time when the terminal receives the power control information.
22. The terminal of claim 20, wherein the first time window includes at least one time unit after a first time, the first time being a time when the terminal receives the power control information.
23. The terminal of claim 21 or 22, wherein the length of the first time window is preset or configured for higher layer signaling.
24. The terminal according to any of the claims 20 to 22, wherein the adjusting unit is configured to maintain the second transmission power unchanged for a first time window after adjusting the transmission power from the first transmission power to the second transmission power based on the first power adjustment amount, restore the transmission power from the second transmission power to the first transmission power after the first time window ends, and maintain the first transmission power unchanged until the power control information is received again.
25. The terminal of any of claims 15 to 22, wherein the first threshold information is pre-set or high layer signaling configured.
26. The terminal according to any of claims 15 to 22, wherein,
the first power adjustment quantity set comprises at least one power adjustment quantity, and the power adjustment timeliness corresponding to each power adjustment quantity in the first power adjustment quantity set is first timeliness;
the second power adjustment amount set includes at least one power adjustment amount, and power adjustment timeliness corresponding to each power adjustment amount in the second power adjustment amount set is second timeliness.
27. The terminal of any of claims 15 to 22, wherein an intersection of the first and second sets of power adjustment amounts is empty.
28. The terminal of any of claims 15 to 22, wherein at least one of the first and second sets of power adjustment amounts is pre-set or high layer signaling configured.
29. A terminal, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 1 to 14.
30. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 14.
31. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 14.
32. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 14.
33. A computer program which causes a computer to perform the method of any one of claims 1 to 14.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/100860 WO2021026910A1 (en) | 2019-08-15 | 2019-08-15 | Method and apparatus for adjusting power, and terminal |
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| Publication Number | Publication Date |
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| CN113519187A CN113519187A (en) | 2021-10-19 |
| CN113519187B true CN113519187B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201980093290.XA Active CN113519187B (en) | 2019-08-15 | 2019-08-15 | Power adjustment method and device and terminal |
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| WO (1) | WO2021026910A1 (en) |
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| WO2023044807A1 (en) * | 2021-09-24 | 2023-03-30 | 北京小米移动软件有限公司 | Method and apparatus for executing control signaling |
| CN116264495A (en) * | 2021-12-10 | 2023-06-16 | 维沃移动通信有限公司 | Method, device, terminal and readable storage medium for determining time window |
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| CN105307254B (en) * | 2015-09-21 | 2018-11-02 | 中国人民解放军国防科学技术大学 | A kind of user equipment transmitting power control system and its control method |
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| WO2021026910A1 (en) | 2021-02-18 |
| CN113519187A (en) | 2021-10-19 |
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