Data transmission method, device, communication equipment and storage medium

Abstract

An embodiment of the present application provides a data transmission method, which is applied in a terminal and includes: sending a resource block (RB) position switching request to a base station; receiving feedback information based on the RB position switching request from the base station; and transmitting data on the RB before switching or the RB after switching according to the feedback information.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular to a data transmission method, apparatus, communication equipment and storage medium. Background Art

[0002] Since the coverage area of ​​wireless communication networks directly affects the operator's quality of service (QoS), capital expenditure (CAPEX) and operating expense (OPENX), the coverage area of ​​wireless communication networks is an important factor that operators need to consider when deploying commercial cellular wireless communication systems. Compared with the 4G Long Term Evolution (LTE) system, the 5G New Radio (NR) system uses a higher spectrum, so the path loss will also be greater. This will bring greater challenges to the coverage of the 5G system, especially the uplink coverage capability of the system.

[0003] In the power control algorithm in the 4G and 5G standards, the maximum power that the terminal can actually output is limited by the size of the configured power. According to the calculation formula of the configured power in the 3GPP terminal radio frequency standard TS38.101-1, the maximum power reduction (MPR) and additional maximum power reduction (A-MPR) indicators are strongly related to the position of the resource block (RB) in the channel bandwidth. When the resource block is at the edge of the channel, due to the requirements of out-of-band transmission, its power backoff will be required to be larger, which may be 3dB larger than when the resource block is in the middle of the channel. Obviously, this will weaken the uplink coverage capability of the communication network and affect the uplink coverage of the communication network. Summary of the invention

[0004] The embodiments of the present application disclose a data transmission method, apparatus, communication equipment and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a data transmission method is provided, wherein the method is applied in a terminal, and the method includes:

[0006] Sending a resource block RB position switching request to the base station;

[0007] receiving feedback information based on the RB position switching request from a base station;

[0008] Data is transmitted on the RB before switching or the RB after switching according to the feedback information.

[0009] In one embodiment, sending a resource block (RB) switching request to a base station includes:

[0010] When the RB before switching is an edge RB of the channel bandwidth, a resource block RB position switching request is sent to the base station; wherein the RB position switching request is used to request that the edge RB be switched to a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB.

[0011] In one embodiment, when the RB before switching is an edge RB of the channel bandwidth, sending a resource block RB position switching request to the base station includes:

[0012] When the RB before switching is an edge RB of the channel bandwidth and the configured transmit power of the terminal meets the first power condition, a resource block RB position switching request is sent to the base station.

[0013] In one embodiment, the configured transmit power of the terminal satisfies a first power condition, including:

[0014] A power headroom PH obtained by subtracting the configured transmit power of the terminal from the actual transmit power of the terminal is lower than a first power threshold;

[0015] or,

[0016] A difference between the power corresponding to the power level of the terminal and the configured power is higher than a second power threshold.

[0017] In one embodiment, when the RB before switching is an edge RB of the channel bandwidth and the configured transmit power of the terminal satisfies the first power condition, sending a resource block RB position switching request to the base station includes:

[0018] When the RB before switching is the edge RB, the configured transmit power of the terminal meets the first power condition, and the actual transmit power of the terminal meets the second power condition, a resource block RB position switching request is sent to the base station.

[0019] In one embodiment, the actual transmit power of the terminal satisfies the second power condition, including:

[0020] A difference between a maximum value of the maximum power backoff MPR and the additional maximum power backoff A-MPR of the terminal and the allowed maximum power backoff P-MPR is higher than or equal to a third power threshold.

[0021] In one embodiment, the third power threshold is the maximum allowable transmission power P configured by the base station for the terminal. EMAX.cThe position coefficient ΔT of the channel bandwidth of the transmitted data in the frequency band C The difference between .

[0022] In one embodiment, the method further comprises:

[0023] When the MPR value of data transmitted by the terminal on the RB before the switching is greater than the MPR threshold, it is determined that the RB before the switching is an edge RB of the channel bandwidth.

[0024] In one embodiment, sending a resource block (RB) position switching request to a base station includes:

[0025] Using the control unit CE of the medium access control MAC carrying the power headroom report PHR, a resource block RB position switching request is sent to the base station;

[0026] or,

[0027] A resource block (RB) position switching request is sent to a base station using radio resource control (RRC) signaling.

[0028] According to a second aspect of an embodiment of the present disclosure, a data transmission method is further provided, wherein the method is applied in a base station, and the method includes:

[0029] A resource block (RB) position switching request sent by a receiving terminal;

[0030] Based on the RB position switching request, the feedback information is sent to the terminal; wherein the feedback information is used to instruct the terminal to perform data transmission on the RB before switching or the RB after switching.

[0031] In one embodiment, the sending the feedback information to the terminal includes:

[0032] When the channel quality of the switching target RB is greater than a set threshold, the feedback information of transmitting data on the switching target RB is sent to the terminal.

[0033] In one embodiment, the RB before switching is an edge RB of the channel bandwidth; the RB after switching is a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB.

[0034] In one embodiment, the sending the feedback information to the terminal includes:

[0035] When the middle RB is idle, feedback information of data transmitted on the middle RB is sent to the terminal.

[0036] In one embodiment, the sending the feedback information to the terminal includes:

[0037] When the middle RB is occupied by a user equipment in a central area of ​​a cell, feedback information of data transmitted on the middle RB is sent to the terminal.

[0038] In one embodiment, the method further comprises:

[0039] Sending RB reallocation information to the user equipment whose middle RB is preempted.

[0040] In one embodiment, the receiving terminal sends a resource block (RB) position switching request, including:

[0041] A control unit CE of a medium access control MAC receiving the resource block RB position switching request;

[0042] or,

[0043] A radio resource control RRC signaling carrying the resource block RB position switching request is received.

[0044] In one embodiment, the MAC CE also carries a PHR.

[0045] According to a third aspect of an embodiment of the present disclosure, a data transmission device is further provided, wherein the device is applied in a terminal, and comprises a first sending module, a first receiving module and a processing module; wherein,

[0046] The first sending module is configured to send a resource block RB position switching request to the base station;

[0047] The first receiving module is configured to receive feedback information based on the RB position switching request from a base station;

[0048] The processing module is configured to transmit data on the RB before switching or the RB after switching according to the feedback information.

[0049] In one embodiment, the first sending module is further configured to send a resource block RB position switching request to the base station when the RB before switching is an edge RB of the channel bandwidth; wherein the RB position switching request is used to request that the edge RB be switched to a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB.

[0050] In one embodiment, the first sending module is further configured to send a resource block RB position switching request to the base station when the RB before switching is an edge RB of the channel bandwidth and the configured transmission power of the terminal meets the first power condition.

[0051] In one embodiment, the first sending module is also configured so that a power margin PH obtained by subtracting the configured transmission power of the terminal from the actual transmission power of the terminal is lower than a first power threshold; or a difference obtained by subtracting the power corresponding to the power level of the terminal from the configured power is higher than a second power threshold.

[0052] In one embodiment, the first sending module is further configured to send a resource block RB position switching request to the base station when the RB before switching is the edge RB, the configured transmit power of the terminal meets the first power condition, and the actual transmit power of the terminal meets the second power condition.

[0053] In one embodiment, the first sending module is further configured so that the actual transmission power of the terminal satisfies a second power condition, including: the difference between the maximum value of the terminal's maximum power backoff MPR and additional maximum power backoff A-MPR, and the allowed maximum power backoff P-MPR is higher than or equal to a third power threshold.

[0054] In one embodiment, the first sending module is further configured as the third power threshold, which is the maximum allowable transmission power P configured by the base station for the terminal. EMAX.c The position coefficient ΔT of the channel bandwidth of the transmitted data in the frequency band C The difference between .

[0055] In an embodiment, the first sending module is further configured to determine that the RB before the switching is an edge RB of the channel bandwidth when the MPR value of the data transmitted by the terminal on the RB before the switching is greater than an MPR threshold.

[0056] In one embodiment, the first sending module is further configured to send a resource block RB position switching request to the base station using a control unit CE of a medium access control MAC carrying a power headroom report PHR;

[0057] or,

[0058] A resource block (RB) position switching request is sent to a base station using radio resource control (RRC) signaling.

[0059] According to a fourth aspect of an embodiment of the present disclosure, a data transmission device is further provided, wherein the device is applied to a base station, and comprises a second receiving module and a second sending module; wherein,

[0060] The second receiving module is configured to receive a resource block RB position switching request sent by a terminal;

[0061] The second sending module is configured to send the feedback information to the terminal based on the RB position switching request; wherein the feedback information is used to instruct the terminal to perform data transmission on the RB before switching or the RB after switching.

[0062] In one embodiment, the second sending module is further configured to send the feedback information of transmitting data on the switched target RB to the terminal when the channel quality of the switched target RB is greater than a set threshold.

[0063] In one embodiment, the second sending module is further configured so that the RB before switching is an edge RB of the channel bandwidth; the RB after switching is a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB.

[0064] In an embodiment, the second sending module is further configured to send feedback information of data transmitted on the middle RB to the terminal when the middle RB is idle.

[0065] In an embodiment, the second sending module is further configured to send feedback information of data transmitted on the middle RB to the terminal when the middle RB is occupied by user equipment in the center area of ​​a cell.

[0066] In an embodiment, the second sending module is further configured to send RB reallocation information to the user equipment whose middle RB is preempted.

[0067] In one embodiment, the second receiving module is further configured to receive a medium access control MAC control unit CE carrying the resource block RB position switching request; or, receive a radio resource control RRC signaling carrying the resource block RB position switching request.

[0068] In one embodiment, the second receiving module is further configured so that the MAC CE also carries a PHR.

[0069] According to a fifth aspect of an embodiment of the present disclosure, a communication device is further provided, including:

[0070] antenna;

[0071] Memory;

[0072] The processor is connected to the antenna and the memory respectively, and is used to control the antenna to receive and send wireless signals by executing an executable program stored in the memory, and can execute the steps of the data transmission method provided by any of the above technical solutions.

[0073] According to the sixth aspect of an embodiment of the present disclosure, a non-temporary computer-readable storage medium is also provided, wherein the non-temporary computer-readable storage medium stores an executable program, wherein when the executable program is executed by a processor, the steps of the data transmission method provided by any of the aforementioned technical solutions are implemented.

[0074] In the disclosed embodiment, a resource block RB position switching request is sent to the base station; feedback information based on the RB position switching request is received from the base station; and data is transmitted on the RB before the switch or the RB after the switch according to the feedback information. Here, the terminal can send a resource block RB position switching request to the base station, request the base station to switch the resource block RB position, and transmit data on the RB before the switch or the RB after the switch based on the feedback information of the base station. Since the terminal can flexibly switch the position of the resource block by requesting the terminal when transmitting data, and the position of the resource block is related to power indicators such as the maximum power backoff and additional maximum power backoff of the terminal during data transmission. In this way, the terminal can reduce the power backoff by switching the position of the resource block RB. Thereby improving the uplink coverage capability of the communication network, and improving the efficiency of the terminal power amplifier, it is beneficial to energy saving of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1 A schematic diagram of the structure of a wireless communication system provided in an embodiment of the present disclosure.

[0076] Figure 2 An embodiment of the present disclosure provides a schematic diagram of the location of resource blocks RBs in a channel bandwidth.

[0077] Figure 3 A schematic diagram of a data transmission method provided by an embodiment of the present disclosure.

[0078] Figure 4 A schematic diagram of a data transmission method provided by another embodiment of the present disclosure.

[0079] Figure 5 A schematic diagram of a data transmission method provided by another embodiment of the present disclosure.

[0080] Figure 6 A schematic diagram of a data transmission method provided by another embodiment of the present disclosure.

[0081] Figure 7a A schematic diagram of a data transmission method provided by another embodiment of the present disclosure.

[0082] Figure 7b A schematic diagram of the relationship between the position of a resource block RB and an MPR value provided in one embodiment of the present disclosure.

[0083] Figure 8A schematic diagram of a data transmission method provided by another embodiment of the present disclosure.

[0084] Fig. 9 A schematic diagram of a control unit CE provided according to an embodiment of the present disclosure.

[0085] Fig.10 A schematic diagram of a control unit CE provided according to another embodiment of the present disclosure.

[0086] Fig.11 A schematic diagram of a data transmission method provided by another embodiment of the present disclosure.

[0087] Fig.12 A schematic diagram of a data transmission method provided by another embodiment of the present disclosure.

[0088] Fig.13 A schematic diagram of a data transmission device provided by an embodiment of the present disclosure.

[0089] Fig.14 A schematic diagram of a data transmission device provided in accordance with another embodiment of the present disclosure.

[0090] Fig.15 A schematic diagram of the structure of a terminal provided by an embodiment of the present disclosure.

[0091] Fig.16 A schematic diagram of the structure of a base station provided for one embodiment of the present disclosure. DETAILED DESCRIPTION

[0092] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present application. Instead, they are only examples of devices and methods consistent with some aspects of the embodiments of the present application as detailed in the attached claims.

[0093] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments and are not intended to limit the disclosed embodiments. The singular forms of "a", "an" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0094] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the disclosed embodiments, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at" or "when" or "in response to determination".

[0095] Please refer to Figure 1 , which shows a schematic diagram of the structure of a wireless communication system provided by an embodiment of the present disclosure. Figure 1 As shown, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: a plurality of terminals 11 and a plurality of base stations 12 .

[0096] Among them, the terminal 11 can be a device that provides voice and / or data connectivity to the user. The terminal 11 can communicate with one or more core networks via a radio access network (RAN). The terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or a "cellular" phone), and a computer with an Internet of Things terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device. For example, a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE). Alternatively, the terminal 11 can also be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 can also be a vehicle-mounted device, for example, it can be a driving computer with wireless communication function, or a wireless communication device connected to an external driving computer. Alternatively, the terminal 11 may also be a roadside device, for example, a street lamp, a signal lamp or other roadside device with a wireless communication function.

[0097] The base station 12 may be a network-side device in a wireless communication system. The wireless communication system may be a fourth generation mobile communication technology (4G) system, also known as a long term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be the next generation system of the 5G system. The access network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access Network). Alternatively, an MTC system.

[0098] Among them, the base station 12 can be an evolved base station (eNB) adopted in the 4G system. Alternatively, the base station 12 can also be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 12 adopts a centralized distributed architecture, it usually includes a centralized unit (CU) and at least two distributed units (DU). The centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link layer control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (Physical, PHY) layer protocol stack. The specific implementation method of the base station 12 is not limited in the embodiment of the present disclosure.

[0099] A wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0100] In some embodiments, E2E (End to End) connections may also be established between the terminals 11, such as V2V (vehicle to vehicle) communication, V2I (vehicle to Infrastructure) communication, and V2P (vehicle to pedestrian) communication in vehicle to everything (V2X) communication.

[0101] In some embodiments, the wireless communication system may further include a network management device 13 .

[0102] Several base stations 12 are respectively connected to a network management device 13. The network management device 13 may be a core network device in a wireless communication system. For example, the network management device 13 may be a mobility management entity (MME) in an evolved packet core (EPC). Alternatively, the network management device may be other core network devices, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber network side device (HSS). The embodiment of the present disclosure does not limit the implementation form of the network management device 13.

[0103] In order to better understand the technical solution described in any embodiment of the present disclosure, first, the relationship between the power indicator of the terminal when transmitting data and the resource block RB position when transmitting data is described through an embodiment.

[0104] See also Figure 2 In one embodiment, when the terminal sends data, it transmits the data on the resource blocks scheduled by the base station. A channel used by the terminal to transmit data corresponds to a bandwidth of 10M, and the bandwidth of 10M can be divided into 50 resource blocks RB. Here, the positions of the resource blocks RB in the channel bandwidth can be numbered by numbers, and the positions of the 50 resource blocks RB are numbered 1, 2, ..., 50 respectively. Here, Figure 2Position 1 and position 2 indicated in can be defined as edge positions. For example, positions numbered 1 to 15 can be edge positions; positions numbered 36 to 50 can also be edge positions. Position 3 can be defined as an intermediate position, for example. Positions numbered 16 to 35 can be intermediate positions.

[0105] Here, the MPR and additional MPR indicators when the terminal transmits a signal are strongly related to the position of the resource block RB in the channel bandwidth. Figure 2 When the resource block is in position 1 or position 2 in the channel, due to the requirement of out-of-band transmission, the power backoff of the terminal's transmitted signal will be larger, which may be higher than when the resource block is in the middle of the channel (such as Figure 2 The position 3) in the figure is 3dB larger. Obviously, this has a great impact on uplink coverage. Therefore, it is crucial to ensure that the resource blocks RB allocated to the terminal (especially the terminal at the edge of the cell) are as close to the middle of the channel as possible. This can not only increase the uplink coverage capability of the cell, but also reduce the power back-off requirements, thereby improving the efficiency of the terminal power amplifier and facilitating energy saving of the terminal.

[0106] like Figure 3 As shown, an embodiment of the present disclosure provides a data transmission method, which is applied in a terminal, and the method includes:

[0107] Step 31: Send a resource block (RB) position switching request to a base station.

[0108] In one embodiment, the terminal may be a terminal that is set in the edge area of ​​the communication cell. For example, an electric meter, a water meter, etc. In another embodiment, the terminal may also be a terminal that is set in a closed or semi-closed environment. For example, an environmental monitoring sensor, an industrial wireless sensor, etc. In another embodiment, the terminal may also be a terminal that is frequently moved to the edge area of ​​the cell or a closed environment. For example, a mobile phone, a vehicle-mounted device, a wearable device, etc. These terminals are easily blocked by objects in the environment, and usually have poor communication signals.

[0109] In one embodiment, the resource block RB position may be the position of the resource block RB in the channel bandwidth. It should be noted that in the embodiment of the present application, each resource block RB position is indicated by a number. For example, Figure 2 The position of each resource block RB is shown by number "1", number "2", etc.

[0110] In one embodiment, the resource block RB position may correspond to a position range in the channel bandwidth. Here, the position range may be a position range near the middle of the channel bandwidth; the position range may also be a position range near the edge of the channel bandwidth. For example, please refer again to Figure 2The position range close to the edge of the channel bandwidth may be the position range including numbers 1 to 15; the position range close to the edge of the channel bandwidth may also be the position range including numbers 36 to 50. The position range close to the middle of the channel bandwidth may be the position range including numbers 16 to 35.

[0111] In another embodiment, the resource block RB position may be a specific position in the corresponding channel bandwidth. Figure 2 The number 3 position in .

[0112] In one embodiment, the resource block RB position switching may be switching a resource block RB located at a first position in the channel bandwidth to a resource block RB located at a second position in the channel bandwidth. Here, the first position may be within a position range at the edge of the channel bandwidth; the second position may be within a position range in the middle of the channel bandwidth.

[0113] In another embodiment, the resource block RB position switching may also be switching the resource block RB located in a first position range in the channel bandwidth to the resource block RB located in a second position range in the channel bandwidth. Here, the first position range may be a position range at the edge of the channel bandwidth; the second position range may be a position range in the middle of the channel bandwidth.

[0114] Step 32: Receive feedback information based on the RB position switching request from the base station.

[0115] In one embodiment, the feedback information may be feedback information generated by the base station based on the resource block RB position switching request after receiving the resource block RB position switching request sent by the terminal. Here, the feedback information is used to instruct the terminal to perform data transmission on the RB before switching or the RB after switching.

[0116] Step 33: Transmit data on the RB before switching or the RB after switching according to the feedback information.

[0117] In an embodiment, when the feedback information indicates that the terminal performs data transmission on the RB before the switching, the terminal performs data transmission on the existing RB.

[0118] In another embodiment, when the feedback information indicates that the terminal performs data transmission on the switched RB, the terminal performs data transmission on the switched RB.

[0119] Here, the switched RB may be a resource block rescheduled by the base station to the terminal.

[0120] In the embodiments of the present disclosure, the terminal may send a resource block (RB) position switching request to the base station, request to switch the RB position from the base station, and transmit data on the RB before switching or the RB after switching based on the feedback information of the base station. Since the terminal can flexibly switch the position of the RB by requesting from the terminal when transmitting data, and the position of the RB is related to power metrics such as the maximum power back-off and additional maximum power back-off of the terminal during data transmission. In this way, the terminal can reduce the power back-off by switching the position of the RB. Thereby, the uplink coverage ability of the communication network can be improved, and the efficiency of the terminal power amplifier can be increased, which is beneficial to the energy saving of the terminal.

[0121] As Figure 4 shown, another embodiment of the present disclosure provides a data transmission method. In step 31, sending a resource block (RB) switching request to the base station includes:

[0122] Step 41, when the RB before switching is the edge RB of the channel bandwidth, send a resource block (RB) position switching request to the base station; wherein, the RB position switching request is used to request to switch the edge RB to the middle RB of the channel bandwidth; the edge RB includes: the edge RB with a higher frequency than the middle RB and the edge RB with a lower frequency than the middle RB.

[0123] In one embodiment, the edge RB of the channel bandwidth may be a resource block (RB) within the edge position range of the channel bandwidth. For example, please refer to Figure 2 again. The edge resource block (RB) of the channel bandwidth may be any resource block (RB) at positions numbered 1 to 15; the edge resource block (RB) of the channel bandwidth may also be any resource block (RB) at positions numbered 36 to 50.

[0124] In one embodiment, the middle RB of the channel bandwidth may be a resource block (RB) within the middle position range of the channel bandwidth. For example, please refer to Figure 2 again. The middle resource block (RB) of the channel bandwidth may be any resource block (RB) at positions numbered 20 to 35.

[0125] In one embodiment, please refer to Figure 2 again. The frequency f 1 of the edge resource block (RB) at positions numbered 1 to 15 ranges from a < f 1 < b; the frequency f 2 of the middle resource block (RB) at positions numbered 16 to 35 ranges from c < f 2 < d; the frequency f 3 of the edge resource block (RB) at positions numbered 36 to 50 ranges from e < f3 < f; wherein, a < b < c < d < e.

[0126] Here, the terminal switches the edge RB of the channel bandwidth used for data transmission to the middle RB of the channel bandwidth to reduce power backoff, thereby improving the uplink coverage capability of the communication network and improving the efficiency of the terminal power amplifier, which is beneficial to energy saving of the terminal.

[0127] like Figure 5 As shown, another embodiment of the present disclosure provides a data transmission method, in step 41, when the RB before switching is an edge RB of the channel bandwidth, a resource block RB position switching request is sent to the base station, including:

[0128] Step 51: When the RB before switching is an edge RB of the channel bandwidth and the configured transmit power of the terminal meets the first power condition, a resource block RB position switching request is sent to the base station.

[0129] In one embodiment, the configured transmit power of the terminal may be the maximum power that the terminal can transmit.

[0130] Here, the configured transmit power of the terminal may change with time or space. In one embodiment, at a first time point, the configured transmit power of the terminal is the first transmit power; at a second time point, the configured transmit power of the terminal is the second transmit power. Here, the first time point is different from the second time point. In another embodiment, in a first area of ​​a cell, the configured transmit power of the terminal is the first transmit power; in a second area of ​​the cell, the configured transmit power of the terminal is the second transmit power. Here, the first area is different from the second area. Here, the first transmit power is lower than the second transmit power.

[0131] In one embodiment, when the terminal is located in the edge area of ​​the cell, the configured transmit power of the terminal is P1; when the terminal is located in the middle area of ​​the cell, the configured transmit power of the terminal is P2; and P1 <P2。

[0132] In another embodiment, when the terminal is located in the ground area of ​​the cell, the configured transmission power of the terminal is P3; when the terminal is located in the underground area of ​​the cell, the configured transmission power of the terminal is P4; and P4 <P3。

[0133] In one embodiment, the configured transmit power of the terminal satisfies the first power condition, including: a power headroom PH obtained by subtracting the configured transmit power of the terminal from the actual transmit power of the terminal is lower than a first power threshold.

[0134] In one embodiment, when the power margin PH is lower than the first power threshold, the configured transmit power of the terminal is small, and the uplink coverage capability of the terminal is weak. At this time, if the edge RB of data transmission is switched to the middle RB of the channel bandwidth, the power backoff can be reduced in time, thereby improving the uplink coverage capability of the communication network, and improving the efficiency of the terminal power amplifier, which is beneficial to energy saving of the terminal.

[0135] In another embodiment, the configured transmit power of the terminal satisfies the first power condition, including:

[0136] The configured transmit power of the terminal changes in a unit time greater than the set change rate. For example, at the first moment t1, the configured transmit power of the terminal is m; at the second moment t2, the configured transmit power of the terminal is n; the set change rate is X; then when (nm) / (t2-t1)>X, it is determined that the configured transmit power of the terminal meets the first power condition. Here, the configured transmit power of the terminal may be caused by the terminal entering the cell edge area; or it may be caused by the terminal entering a closed space.

[0137] In another embodiment, the configured transmit power of the terminal satisfies the first power condition, including: the difference between the power corresponding to the power class of the terminal and the configured power is higher than the second power threshold. Here, different terminals may correspond to different power classes. Different power classes may correspond to different power values. For example, the power value corresponding to the first power class is T1; the power value corresponding to the second power class is T2, etc.

[0138] like Figure 6 As shown, another embodiment of the present disclosure provides a data transmission method, in step 51, when the RB before switching is an edge RB of the channel bandwidth and the configured transmit power of the terminal meets the first power condition, a resource block RB position switching request is sent to the base station, including:

[0139] Step 61: When the RB before switching is an edge RB, the configured transmit power of the terminal meets the first power condition, and the actual transmit power of the terminal meets the second power condition, a resource block RB position switching request is sent to the base station.

[0140] In one embodiment, the parameters of the actual transmit power of the terminal may include a maximum power backoff MPR, an additional maximum power backoff A-MPR, and an allowed maximum power backoff P-MPR. Here, the maximum power backoff MPR, the additional maximum power backoff A-MPR, and the allowed maximum power backoff P-MPR may change with the position of the terminal. For example, in the first position, the maximum power backoff MPR is a1, the additional maximum power backoff A-MPR is b1, and the allowed maximum power backoff P-MPR is c1; in the second position, the maximum power backoff MPR is a2, the additional maximum power backoff A-MPR is b2, and the allowed maximum power backoff P-MPR is c2.

[0141] In one embodiment, the actual transmit power of the terminal satisfies the second power condition, including:

[0142] A difference between a maximum value of the maximum power backoff MPR and the additional maximum power backoff A-MPR of the terminal and the allowed maximum power backoff P-MPR is higher than or equal to a third power threshold.

[0143] In one embodiment, the third power threshold is the maximum allowable transmission power P configured by the base station for the terminal. EMAX.c The position coefficient ΔT of the channel bandwidth of the transmitted data in the frequency band C The difference between .

[0144] Here, P EMAX,c The maximum transmission power allowed by the base station for the terminal. Here, P EMAX,c The value of is related to the terminal position. Here, ΔT C is a coefficient related to the position of the channel in the frequency band.

[0145] like Figure 7a As shown, another embodiment of the present disclosure provides a data transmission method, the method further comprising:

[0146] Step 71: When the MPR value of data transmitted by the terminal on the RB before the switching is greater than the MPR threshold, the RB before the switching is determined to be an edge RB of the channel bandwidth.

[0147] Here, since the maximum power backoff MPR of the terminal is related to the position of the resource block RB in the channel bandwidth, each maximum power backoff MPR corresponds to the position of an RB in the channel bandwidth. Therefore, when the MPR value of the terminal transmitting data on the RB before switching is greater than the MPR threshold, it can be determined that the RB before switching is the edge RB of the channel bandwidth. Figure 7b , each resource block RB located in the channel bandwidth corresponds to an MPR value, for example, the position numbered 1 corresponds to M1, the position numbered 2 corresponds to M2, and so on.

[0148] In one embodiment, a mapping relationship between each maximum power backoff MPR value and the position number of the corresponding RB in the channel bandwidth may be stored in advance. In this way, when the terminal collects the maximum power backoff MPR value, the position of the corresponding RB in the channel bandwidth can be quickly determined based on the mapping relationship.

[0149] like Figure 8 As shown, another embodiment of the present disclosure provides a data transmission method, in step 31, sending a resource block RB position switching request to a base station, including:

[0150] Step 81, using the control unit CE of the medium access control MAC carrying the power headroom report PHR, sending a resource block RB position switching request to the base station;

[0151] or,

[0152] A resource block (RB) position switching request is sent to a base station using radio resource control (RRC) signaling.

[0153] In one embodiment, the terminal sends an RB switching request to the base station. The terminal may use the reserved bit in the control unit CE entity of the medium access control MAC of the power headroom reporting PHR of 3GPP TS36.321 or TS38.321 to send the RB switching request to the base station. In one embodiment, see Fig. 9 , the terminal may use the second reserved bit to send an RB switching request to the base station. In one embodiment, see Fig.10 The reserved bit defaults to "0". When any reserved bit (for example, the second reserved bit) is set to "1", it indicates that a resource block RB position switching request is sent to the base station. It should be noted that "1" is not limited to the position in the figure, but can be Fig.10 Any of the four reserved bits.

[0154] Here, the radio resource control RRC signaling may be a high-layer signaling of a radio resource control layer (RRC, Radio Resource Control).

[0155] like Fig.11 As shown, another embodiment of the present disclosure provides a data transmission method, which is applied in a base station and includes:

[0156] Step 111: receiving a resource block RB position switching request sent by a terminal.

[0157] In one embodiment, the terminal may be a terminal that will be set in the edge area of ​​the communication cell. For example, an electric meter, a water meter, etc. In another embodiment, the terminal may also be a terminal that will be set in a closed or semi-closed environment. For example, an environmental monitoring sensor, an industrial wireless sensor, etc. In another embodiment, the terminal may also be a terminal that is frequently moved to the above-mentioned cell edge area or a closed environment. For example, a mobile phone, a vehicle-mounted device, a wearable device, etc. Since these terminals are easily blocked by objects in the environment, the communication signals are usually poor. In one embodiment, the resource block RB position may be the position of the resource block RB in the channel bandwidth.

[0158] In one embodiment, the resource block RB position may correspond to a position range in the channel bandwidth. Here, the position range may be a position range near the middle of the channel bandwidth; the position range may also be a position range near the edge of the channel bandwidth. For example, please refer again to Figure 2The position range close to the edge of the channel bandwidth may be the position range including numbers 1 to 15; the position range close to the edge of the channel bandwidth may also be the position range including numbers 36 to 50. The position range close to the middle of the channel bandwidth may be the position range including numbers 16 to 35.

[0159] In another embodiment, the resource block RB position may be a specific position in the corresponding channel bandwidth, for example, Figure 2 The number 3 position in .

[0160] In one embodiment, the resource block RB position switching may be switching a resource block RB located at a first position in the channel bandwidth to a resource block RB located at a second position in the channel bandwidth. Here, the first position may be within a position range at the edge of the channel bandwidth; the second position may be within a position range in the middle of the channel bandwidth.

[0161] In another embodiment, the resource block RB position switching may be switching the resource block RB located in a first position range in the channel bandwidth to the resource block RB located in a second position range in the channel bandwidth. Here, the first position range may be a position range at the edge of the channel bandwidth; the second position range may be a position range in the middle of the channel bandwidth.

[0162] Step 112: Send feedback information to the terminal based on the RB position switching request; wherein the feedback information is used to instruct the terminal to perform data transmission on the RB before switching or the RB after switching.

[0163] In an embodiment, when the feedback information indicates that the terminal performs data transmission on the RB before the switching, the terminal performs data transmission on the existing RB.

[0164] In another embodiment, when the feedback information indicates that the terminal performs data transmission on the switched RB, the terminal performs data transmission on the switched RB. Here, the switched RB may be a resource block rescheduled by the base station to the terminal.

[0165] In the disclosed embodiment, the base station can receive a resource block RB position switching request sent by the terminal, switch the resource block RB position based on the resource block RB position switching request, and feedback information to the terminal, and the terminal transmits data on the RB before the switch or the RB after the switch. Since the terminal can flexibly switch the position of the resource block by requesting the terminal when transmitting data, and the position of the resource block is related to power indicators such as the maximum power backoff and additional maximum power backoff of the terminal during data transmission. In this way, the terminal can reduce the power backoff by switching the position of the resource block RB. Thereby improving the uplink coverage capability of the communication network, and improving the efficiency of the terminal power amplifier, it is beneficial to energy saving of the terminal.

[0166] In one embodiment, sending feedback information to the terminal includes:

[0167] When the channel quality of the switched target RB is greater than a set threshold, feedback information on data transmission on the switched target RB is sent to the terminal.

[0168] In one embodiment, the target RB for switching may be a resource block RB that the base station to be scheduled reallocates to the terminal for data transmission. In one embodiment, the terminal currently uses a first resource block RB to transmit data, and the base station switches the first resource block RB to a second resource block RB through scheduling, so that the terminal transmits data on the second resource block RB, and the second resource block RB may be the target RB for switching.

[0169] Here, the channel quality may correspond to the signal-to-noise ratio of the channel. In one embodiment, the channel quality of the switched RB may be determined by a channel quality indication (CQI). In one embodiment, the value range of the channel quality indication CQI may be 0 to 31. Here, when the channel quality indication CQI value is "0", the channel quality is the worst; when the channel quality indication CQI value is "31", the channel quality is the best.

[0170] In one embodiment, when the terminal has higher requirements for channel quality, the threshold is set to be greater than a first value; when the terminal has lower requirements for channel quality, the threshold is set to be greater than a second value; wherein the first value is greater than the second value.

[0171] In one embodiment, the RB before switching is an edge RB of the channel bandwidth; the RB after switching is a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB.

[0172] In one embodiment, the edge RB of the channel bandwidth may be a resource block RB located within the edge position range of the channel bandwidth. For example, please refer again to Figure 2 The edge resource block RB of the channel bandwidth may be any resource block RB located at positions numbered 1 to 15; the edge resource block RB of the channel bandwidth may also be any resource block RB located at positions numbered 36 to 50.

[0173] In one embodiment, the middle RB of the channel bandwidth may be a resource block RB located within the middle position range of the channel bandwidth. For example, see again Figure 2 , the middle resource block RB of the channel bandwidth may be the resource block RB located at positions numbered 20 to 35.

[0174] In one embodiment, see again Figure 2, the frequency f corresponding to the edge resource blocks RB at positions numbered 1 to 15 1 is in the range of a < f 1 < b; the frequency f corresponding to the middle resource blocks RB at positions numbered 16 to 35 2 is in the range of c < f 2 < d; the frequency f corresponding to the edge resource blocks RB at positions numbered 36 to 50 3 is in the range of e < f3 < f; where a < b < c < d < e.

[0175] In one embodiment, feedback information is sent to the terminal, including:

[0176] When the middle RB is idle, feedback information on transmitting data on the middle RB is sent to the terminal.

[0177] In one embodiment, the middle RB being idle can be a state where the middle RB is not occupied by the terminal. That is, a state where the middle RB is not used for data transmission. Or, the middle RB being idle can also be a state where the middle RB can be allocated to the terminal for data transmission.

[0178] In one embodiment, feedback information is sent to the terminal, including:

[0179] When the middle RB is occupied by a user equipment in the cell center area, feedback information on transmitting data on the middle RB is sent to the terminal.

[0180] In one embodiment, the user equipment in the cell center area can be a user equipment within the set range in the cell signal coverage area. For example, the cell signal coverage area is range A, and the set range in the cell signal coverage area is range B, where range A contains range B, and range B is located in the center area of range A. Then the user equipment within range B can be the user equipment in the cell center area.

[0181] Here, since the user equipment is in the cell center area, it has a relatively better wireless communication signal compared to the user equipment at the cell edge. Even if switching the already in-use middle RB to an edge RB results in a large power back-off, good wireless communication quality can still be ensured.

[0182] In one embodiment, the method further includes:

[0183] Sending reallocation information of the RB to the user equipment whose middle RB is preempted.

[0184] Here, since the middle RB of the user equipment is occupied, RB reallocation information is sent to the user equipment whose middle RB is occupied, so that the user equipment can obtain the reallocated RB in time and transmit data on the reallocated RB. In one embodiment, the reallocated RB may be an edge RB.

[0185] like Fig.12 As shown, another embodiment of the present disclosure provides a data transmission method, in step 111, receiving a resource block RB position switching request sent by a terminal, including:

[0186] Step 121, receiving a medium access control MAC control unit CE carrying a resource block RB position switching request;

[0187] or,

[0188] A radio resource control RRC signaling carrying a resource block RB position switching request is received.

[0189] In one embodiment, the terminal sends an RB switching request to the base station. The terminal may use a reserved bit in a control unit CE entity of a medium access control MAC for reporting power headroom PHR of 3GPP TS36.321 or TS38.321 to send the RB switching request to the base station. In one embodiment, please refer to Fig. 9 , the terminal may use the second reserved bit to send an RB switching request to the base station. In one embodiment, please refer again to Fig.10 The reserved bit defaults to "0". When any reserved bit (for example, the second reserved bit) is set to "1", it indicates that a resource block RB position switching request is sent to the base station. It should be noted that "1" is not limited to the position in the figure, but can be Fig.10 Any of the four reserved bits.

[0190] Here, the radio resource control RRC signaling may be a high-layer signaling of a radio resource control layer (RRC, Radio Resource Control).

[0191] In one embodiment, the MAC CE also carries the PHR.

[0192] like Fig.13 As shown, an embodiment of the present disclosure provides a data transmission device, wherein the device is applied to a terminal, and includes a first sending module 131, a first receiving module 132 and a processing module 133; wherein,

[0193] The first sending module 131 is configured to send a resource block RB position switching request to the base station;

[0194] The first receiving module 132 is configured to receive feedback information based on the RB position switching request from the base station;

[0195] The processing module 133 is configured to transmit data on the RB before switching or the RB after switching according to the feedback information.

[0196] In one embodiment, the first sending module 131 is also configured to send a resource block RB position switching request to the base station when the RB before switching is an edge RB of the channel bandwidth; wherein the RB position switching request is used to request to switch the edge RB to a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB.

[0197] In one embodiment, the first sending module 131 is further configured to send a resource block RB position switching request to the base station when the RB before switching is an edge RB of the channel bandwidth and the configured transmit power of the terminal meets the first power condition.

[0198] In one embodiment, the first sending module 131 is also configured so that the power margin PH obtained by subtracting the configured transmission power of the terminal from the actual transmission power of the terminal is lower than the first power threshold; or, the difference obtained by subtracting the power corresponding to the power level of the terminal from the configured power is higher than the second power threshold.

[0199] In one embodiment, the first sending module 131 is also configured to send a resource block RB position switching request to the base station when the RB before switching is an edge RB, the configured transmit power of the terminal meets the first power condition, and the actual transmit power of the terminal meets the second power condition.

[0200] In one embodiment, the first sending module 131 is also configured so that the actual transmission power of the terminal satisfies a second power condition, including: the difference between the maximum value of the terminal's maximum power backoff MPR and additional maximum power backoff A-MPR, and the allowed maximum power backoff P-MPR is higher than or equal to a third power threshold.

[0201] In one embodiment, the first sending module 131 is further configured as a third power threshold, which is the maximum allowable transmission power P configured by the base station for the terminal. EMAX.c The position coefficient ΔT of the channel bandwidth of the transmitted data in the frequency band C The difference between .

[0202] In an embodiment, the first sending module 131 is further configured to determine that the RB before the switching is an edge RB of the channel bandwidth when the MPR value of the data transmitted by the terminal on the RB before the switching is greater than the MPR threshold.

[0203] In one embodiment, the first sending module 131 is further configured to send a resource block RB position switching request to the base station by using a control unit CE of a medium access control MAC carrying a power headroom report PHR;

[0204] or,

[0205] A resource block (RB) position switching request is sent to a base station using radio resource control (RRC) signaling.

[0206] like Fig.14 As shown, another embodiment of the present disclosure provides a data transmission device, wherein the device is applied in a base station, and includes a second receiving module 141 and a second sending module 142; wherein,

[0207] The second receiving module 141 is configured to receive a resource block RB position switching request sent by a terminal;

[0208] The second sending module 142 is configured to send feedback information to the terminal based on the RB position switching request; wherein the feedback information is used to instruct the terminal to perform data transmission on the RB before switching or the RB after switching.

[0209] In an embodiment, the second sending module 142 is further configured to send feedback information of transmitting data on the switching target RB to the terminal when the channel quality of the switching target RB is greater than a set threshold.

[0210] In one embodiment, the second sending module 142 is further configured such that the RB before switching is an edge RB of the channel bandwidth; the RB after switching is a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB.

[0211] In an embodiment, the second sending module 142 is further configured to send feedback information of data transmission on the middle RB to the terminal when the middle RB is idle.

[0212] In an embodiment, the second sending module 142 is further configured to send feedback information of transmitting data on the middle RB to the terminal when the middle RB is occupied by a user equipment in the center area of ​​the cell.

[0213] In an embodiment, the second sending module 142 is further configured to send RB reallocation information to the user equipment whose middle RB is preempted.

[0214] In one embodiment, the second receiving module 141 is further configured to receive a medium access control MAC control unit CE carrying a resource block RB position switching request; or receive a radio resource control RRC signaling carrying a resource block RB position switching request.

[0215] In an embodiment, the second receiving module 141 is further configured such that the MAC CE also carries the PHR.

[0216] The present disclosure also provides a communication device, including:

[0217] antenna;

[0218] Memory;

[0219] The processor is connected to the antenna and the memory respectively, and is used to control the antenna to send and receive wireless signals by executing the executable program stored in the memory, and can execute the steps of the data transmission method provided in any of the above embodiments.

[0220] The communication device provided in this embodiment may be the aforementioned terminal or base station. The terminal may be various types of person-mounted terminals or vehicle-mounted terminals. The base station may be various types of base stations, for example, a 4G base station or a 5G base station.

[0221] The antenna may be various types of antennas, for example, a mobile antenna such as a 3G antenna, a 4G antenna or a 5G antenna; the antenna may also include: a WiFi antenna or a wireless charging antenna, etc.

[0222] The memory may include various types of storage media, which are non-transitory computer storage media that can continue to remember information stored thereon after the communication device loses power.

[0223] The processor can be connected to the antenna and the memory through a bus, etc., and is used to read the executable program stored in the memory, for example, at least one of the methods shown in any embodiment of the present disclosure.

[0224] An embodiment of the present disclosure also provides a non-temporary computer-readable storage medium, which stores an executable program, wherein when the executable program is executed by a processor, the steps of the data transmission method provided in any of the aforementioned embodiments are implemented, for example, at least one of the methods shown in any of the embodiments of the present disclosure.

[0225] like Fig.15 As shown, an embodiment of the present disclosure provides a structure of a terminal.

[0226] Reference Fig.15 The terminal 800 shown in this embodiment provides a terminal 800, which can be a mobile phone, a computer, a digital broadcast terminal, a message sending and receiving device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0227] Reference Fig.15The terminal 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0228] The processing component 802 generally controls the overall operation of the terminal 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0229] The memory 804 is configured to store various types of data to support operations at the terminal 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic disk, or an optical disk.

[0230] Power component 806 provides power to various components of terminal 800. Power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 800.

[0231] The multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the terminal 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0232] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the terminal 800 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0233] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0234] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the terminal 800. For example, the sensor assembly 814 can detect the open / closed state of the terminal 800, the relative positioning of the components, such as the display and keypad of the terminal 800, and the sensor assembly 814 can also detect the position change of the terminal 800 or a component of the terminal 800, the presence or absence of contact between the user and the terminal 800, the orientation or acceleration / deceleration of the terminal 800 and the temperature change of the terminal 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

[0235] The communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0236] In an exemplary embodiment, terminal 800 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above methods.

[0237] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by the processor 820 of the terminal 800 to complete the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0238] The terminal can be used to implement the aforementioned method, for example, the method of any embodiment of the present disclosure.

[0239] like Fig.16 As shown, an embodiment of the present disclosure provides a structure of a base station. For example, the base station 900 can be provided as a network side device. Fig.16 The base station 900 includes a processing component 922, which further includes one or more processors, and a memory resource represented by a memory 932 for storing instructions executable by the processing component 922, such as an application. The application stored in the memory 932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 922 is configured to execute instructions to perform any of the aforementioned methods, such as the method of any embodiment of the present disclosure.

[0240] The base station 900 may also include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input / output (I / O) interface 958. The base station 900 may operate based on an operating system stored in the memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or the like.

[0241] The wireless network interface 950 includes, but is not limited to, the antenna of the aforementioned communication device. After considering the specification and practicing the invention disclosed herein, those skilled in the art will easily think of other embodiments of the present application. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present application are indicated by the following claims.

[0242] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A data transmission method, in, Applied in a terminal, the method includes: Sending a resource block RB position switching request to the base station; receiving feedback information based on the RB position switching request from a base station; Transmitting data on the RB before switching or the RB after switching according to the feedback information; The sending the RB switching request to the base station includes: When the RB before switching is an edge RB of the channel bandwidth, sending an RB position switching request to the base station; wherein the RB position switching request is used to request to switch the edge RB to a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB; The method further includes: when a maximum power backoff MPR value for data transmission by the terminal on the RB before the switching is greater than an MPR threshold, determining that the RB before the switching is an edge RB of the channel bandwidth.

2. The method according to claim 1, in, When the RB before the switching is an edge RB of the channel bandwidth, sending an RB position switching request to the base station includes: When the RB before switching is an edge RB of the channel bandwidth and the configured transmit power of the terminal meets the first power condition, a RB position switching request is sent to the base station.

3. The method according to claim 2, in, The configured transmit power of the terminal satisfies a first power condition, including: A power headroom PH obtained by subtracting the configured transmit power of the terminal from the actual transmit power of the terminal is lower than a first power threshold; or, A difference between the power corresponding to the power level of the terminal and the configured transmit power is higher than a second power threshold.

4. The method according to claim 2 or 3, in, When the RB before the switching is an edge RB of the channel bandwidth and the configured transmit power of the terminal meets the first power condition, sending an RB position switching request to the base station includes: When the RB before switching is the edge RB, the configured transmit power of the terminal meets the first power condition, and the actual transmit power of the terminal meets the second power condition, a RB position switching request is sent to the base station.

5. The method according to claim 4, in, The actual transmit power of the terminal satisfies the second power condition, including: A difference between a maximum value of the MPR of the terminal and the additional maximum power backoff A-MPR and the allowed maximum power backoff P-MPR is higher than or equal to a third power threshold.

6. The method according to claim 5, in, The third power threshold is the maximum allowable transmission power P configured by the base station for the terminal. EMAX.c The coefficient ∆T of the channel bandwidth of the transmitted data in the frequency band C The difference between .

7. The method according to claim 1, in, The sending the RB position switching request to the base station includes: Using the control unit CE of the medium access control MAC carrying the power headroom report PHR, a RB position switching request is sent to the base station; or, The RB position switching request is sent to the base station using radio resource control RRC signaling.

8. A data transmission method, in, Applied in a base station, the method comprises: A resource block (RB) position switching request sent by a receiving terminal; Sending feedback information to the terminal based on the RB position switching request; wherein the feedback information is used to instruct the terminal to perform data transmission on the RB before switching or the RB after switching; The RB position switching request is sent by the terminal to the base station when the RB before the switching is an edge RB of the channel bandwidth; wherein the RB position switching request is used to request to switch the edge RB to a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB; When the maximum power backoff MPR value of data transmitted by the terminal on the RB before the switching is greater than the MPR threshold, the RB before the switching is an edge RB of the channel bandwidth.

9. The method according to claim 8, in, The sending the feedback information to the terminal includes: When the channel quality of the switching target RB is greater than a set threshold, the feedback information of transmitting data on the switching target RB is sent to the terminal.

10. The method according to claim 8, in, The sending the feedback information to the terminal includes: When the middle RB is idle, feedback information of data transmitted on the middle RB is sent to the terminal.

11. The method according to claim 8, in, The sending the feedback information to the terminal includes: When the middle RB is occupied by a user equipment in a central area of ​​a cell, feedback information of data transmitted on the middle RB is sent to the terminal.

12. The method according to claim 8, in, The method further comprises: Sending RB reallocation information to the user equipment whose middle RB is preempted.

13. The method according to claim 8, in, The receiving terminal sends a RB position switching request, including: A control unit CE receiving a medium access control MAC carrying the RB position switching request; or, A radio resource control RRC signaling carrying the RB position switching request is received.

14. The method according to claim 13, in, The MAC CE also carries the PHR.

15. A data transmission device, in, Applied in a terminal, the device comprises a first sending module, a first receiving module, a processing module and a determining module; wherein, The first sending module is configured to send a resource block RB position switching request to the base station; The first receiving module is configured to receive feedback information based on the RB position switching request from a base station; The processing module is configured to transmit data on the RB before switching or the RB after switching according to the feedback information; The first sending module is further configured to send an RB position switching request to the base station when the RB before switching is an edge RB of the channel bandwidth; wherein the RB position switching request is used to request to switch the edge RB to a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB; The determination module is configured to determine that the RB before the switching is an edge RB of the channel bandwidth when a maximum power backoff MPR value for data transmission by the terminal on the RB before the switching is greater than an MPR threshold.

16. The device according to claim 15, in, The first sending module is further configured to send an RB position switching request to the base station when the RB before switching is an edge RB of the channel bandwidth and the configured transmission power of the terminal meets the first power condition.

17. The device according to claim 16, in, The first sending module is also configured so that a power margin PH obtained by subtracting the configured transmit power of the terminal from the actual transmit power of the terminal is lower than a first power threshold; or a difference obtained by subtracting the power corresponding to the power level of the terminal from the configured transmit power is higher than a second power threshold.

18. The device according to claim 16 or 17, in, The first sending module is also configured to send the RB position switching request to the base station when the RB before switching is the edge RB, the configured transmit power of the terminal meets the first power condition, and the actual transmit power of the terminal meets the second power condition.

19. A data transmission device, in, Applied in a base station, the device comprises a second receiving module and a second sending module; wherein, The second receiving module is configured to receive a resource block RB position switching request sent by a terminal; The second sending module is configured to send feedback information to the terminal based on the RB position switching request; wherein the feedback information is used to instruct the terminal to perform data transmission on the RB before switching or the RB after switching; The RB position switching request is sent by the terminal to the base station when the RB before the switching is an edge RB of the channel bandwidth; wherein the RB position switching request is used to request to switch the edge RB to a middle RB of the channel bandwidth; the edge RB includes: an edge RB with a higher frequency than the middle RB, and an edge RB with a lower frequency than the middle RB; When the maximum power backoff MPR value of data transmitted by the terminal on the RB before the switching is greater than the MPR threshold, the RB before the switching is an edge RB of the channel bandwidth.

20. The device according to claim 19, in, The second sending module is further configured to send the feedback information of transmitting data on the switched target RB to the terminal when the channel quality of the switched target RB is greater than a set threshold.

21. A communication device, in, include: antenna; Memory; The processor is connected to the antenna and the memory respectively, and is configured to control the transmission and reception of the antenna by executing computer executable instructions stored in the memory, and can implement the method provided in any one of claims 1 to 7 or claims 8 to claim 14.

22. A computer storage medium storing computer executable instructions, wherein the computer executable instructions can implement the method provided in any one of claims 1 to 7 or claims 8 to claim 14 after being executed by a processor.

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