CN113891443A

CN113891443A - Method and device used in user equipment and base station for wireless communication

Info

Publication number: CN113891443A
Application number: CN202111276941.4A
Authority: CN
Inventors: 蒋琦; 刘铮
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2018-02-28
Filing date: 2018-02-28
Publication date: 2022-01-04
Also published as: CN113890685A; CN113890685B; CN110213012A; CN110213012B

Abstract

The application discloses a method and a device in a user equipment, a base station and the like used for wireless communication. The method comprises the steps that a user equipment determines a first target power and a second target power, wherein the first target power and the second target power are respectively used for determining a first power and a second power; subsequently transmitting the first wireless signal at the first power and the second wireless signal at the second power; at least one of a first target power and a second target power is not less than a first threshold power, the first power being equal to the second power; or both a first target power and a second target power are less than a first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; according to the method and the device, the first power and the second power are associated to realize the joint receiving of the first wireless signal and the second wireless signal, so that the granting-free uplink transmission efficiency and the spectrum utilization rate are improved.

Description

Method and device used in user equipment and base station for wireless communication

The present application is a divisional application of the following original applications:

application date of the original application: 2018, 02 and 28 days

- -application number of the original application: 201810166592.2

The invention of the original application is named: method and device used in user equipment and base station for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a method and apparatus for grant-free uplink transmission.

Background

In a conventional 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution) and a 5GNR system, power control is required for uplink transmission at a terminal side to ensure that a base station can efficiently receive transmission data at the terminal side. For different channels, the terminal side adopts different power control strategies, for example, for a Preamble sequence (Preamble) and a pusch (physical Uplink Shared channel), the terminal performs power control and power selection independently. Meanwhile, the maximum transmission power of the terminal is also limited to ensure the endurance time and the battery life of the terminal.

In future 5G NR Phase 2 and subsequent evolution versions, one base station will support application scenarios with a larger number of terminals than the existing system. When the number of terminals is large, the advantage of small overhead of air interface signaling and high spectrum efficiency will be better embodied by the uplink transmission without grant, and the power control scheme for uplink transmission without grant needs to be redesigned.

Disclosure of Invention

In the conventional LTE system and the 5GNR system, the user equipment respectively follows an independent power control process when transmitting the Preamble and the PUSCH, and the transmission power cannot be greater than the maximum uplink transmission power to ensure the battery life of the user equipment. In grant-free uplink transmission, a common way is that a user equipment sends a Preamble and uplink data in different air interface resource sets, and a base station can obtain identification information of the user equipment through the Preamble and can also use the Preamble to help the uplink data to perform channel estimation and demodulation, so as to improve transmission performance. However, the above method requires that the base station side correctly assumes the transmission power of the Preamble and the uplink data, and further ensures that the Preamble and the uplink data are correctly received, whereas the base station cannot correctly predict the relationship between the Preamble and the transmission power of the uplink data in the existing system because the power control of the Preamble and the uplink data is an independent process. Aiming at the problems, a simple solution is to enable the user equipment to transmit the grant-free Preamble and uplink data by using the same transmission power; however, this method is inefficient, inflexible, and may affect the Preamble receiving performance.

In view of the above, the present application discloses a solution. Without conflict, embodiments and features in embodiments in the user equipment of the present application may be applied to the base station and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method used in a user equipment for wireless communication, characterized by comprising:

determining a first target power and a second target power, the first target power and the second target power being used to determine a first power and a second power, respectively;

transmitting a first wireless signal at a first power;

transmitting a second wireless signal at a second power;

wherein at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

As an embodiment, the above method is characterized in that: the first wireless signal is used for transmitting a Preamble, the second wireless signal is used for transmitting uplink grant-free data, and the first wireless signal is used by a base station for assisting channel estimation and demodulation of the second wireless signal.

As an example, the above method has the benefits of: by associating the first power with the second power; for the base station, there are only two cases where the relationship between the first power and the second power is equal and the power difference between the first power and the second power is known at the base station side; and then guarantee the base station when adopting the demodulation of helping the second radio signal through the receipt of first radio signal, only need according to above-mentioned two kinds of condition carry out blind detection can, reduce the complexity that the base station received, improve transmission performance.

As an example, another benefit of the above method is: the base station can change the power difference between the first power and the second power by configuring parameters related to the first target power and the second target power, so that the Preamble power is flexibly raised on the premise that the first threshold power is not exceeded, and the receiving performance of the Preamble is improved.

According to one aspect of the application, the above method is characterized by comprising:

receiving first information;

wherein, when the first power and the second power are both less than the first threshold power, a difference between the first power and the second power is equal to a first power difference, and the first information is used to indicate the first power difference; the first information is transmitted over the air interface.

As an example, the above method has the benefits of: the base station flexibly configures the first power difference through the first information, and raises the power of the Preamble when needed so as to improve the receiving performance of the Preamble.

receiving second information;

wherein the first threshold power is not less than a first lower limit power, and the first threshold power is not greater than a first upper limit power; the second information and the power class of the user equipment are used to determine at least one of the first lower power limit and the first upper power limit; the second information is transmitted over the air interface.

As an example, the above method has the benefits of: the base station flexibly configures the first lower limit power and the first upper limit power, and then flexibly configures the first threshold power so as to improve the flexibility of system implementation.

receiving a first reference signal;

wherein measurements for the first reference signal are used to determine a first path loss, the first target power and the second target power each being linearly related to the first path loss.

As an embodiment, the above method is characterized in that: and the user equipment obtains the downlink path loss through a first reference signal sent by the base station, and further calculates the first target power and the second target power.

transmitting a second reference signal;

wherein the second reference signal is used for demodulation of the second wireless signal, a transmission power of the second reference signal being equal to the second power.

As an example, the above method has the benefits of: the user equipment sends the Preamble and also sends a reference signal for demodulating the second wireless signal, namely the second reference signal, so that the receiving performance of the second wireless signal is further improved.

receiving third information;

wherein the third information is used for indicating at least one of a first type of air interface resource pool and a second type of air interface resource pool; the first type of air interface resource pool comprises K1 first type of air interface resource sets, and the first type of air interface resource set is one of the K1 first type of air interface resource sets; the second air interface resource pool comprises K2 second air interface resource sets, and the second air interface resource set is one of the K2 second air interface resource sets; the user equipment sends the first wireless signal in the first air interface resource set, and the user equipment sends the second wireless signal in the second air interface resource set; the third information is transmitted over an air interface; the K1 and the K2 are both positive integers.

As an embodiment, the above method is characterized in that: the air interface resource set occupied by the first wireless signal belongs to a first type air interface resource pool, and the air interface resource set occupied by the second wireless signal belongs to a second type air interface resource pool; the user equipment selects air interface resources by itself to perform uplink transmission, and the base station only blindly detects the first wireless signal and the second wireless signal in the first type of air interface resource pool and the second type of air interface resource pool, thereby not only realizing the advantage of saving signaling overhead without granting uplink transmission, but also reducing the complexity of blind detection of the base station.

The application discloses a method in a base station used for wireless communication, characterized by comprising:

receiving a first wireless signal;

receiving a second wireless signal;

wherein a first target power and a second target power are used to determine a first power and a second power, respectively, a transmission power of the first wireless signal being the first power, a transmission power of the second wireless signal being the second power; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

sending first information;

sending the second information;

wherein the first threshold power is not less than a first lower limit power, and the first threshold power is not greater than a first upper limit power; the second information and a power level of a sender of the first wireless signal are used to determine at least one of the first lower power limit and the first upper power limit; the second information is transmitted over the air interface.

transmitting a first reference signal;

receiving a second reference signal;

sending third information;

wherein the third information is used for indicating at least one of a first type of air interface resource pool and a second type of air interface resource pool; the first type of air interface resource pool comprises K1 first type of air interface resource sets, and the first type of air interface resource set is one of the K1 first type of air interface resource sets; the second air interface resource pool comprises K2 second air interface resource sets, and the second air interface resource set is one of the K2 second air interface resource sets; a sender of the first wireless signal sends the first wireless signal in the first air interface resource set, and the sender of the first wireless signal sends the second wireless signal in the second air interface resource set; the third information is transmitted over an air interface; the K1 and the K2 are both positive integers.

The application discloses a user equipment used for wireless communication, characterized by comprising:

a first receiver module to determine a first target power and a second target power, the first target power and the second target power being used to determine a first power and a second power, respectively;

a first transmitter module for transmitting a first wireless signal at a first power;

a second transmitter module to transmit a second wireless signal at a second power;

As an embodiment, the user equipment used for wireless communication described above is characterized in that the first receiver module further receives first information; when the first power and the second power are both less than the first threshold power, a difference between the first power and the second power is equal to a first power difference, and the first information is used to indicate the first power difference; the first information is transmitted over the air interface.

As an embodiment, the user equipment used for wireless communication described above is characterized in that the first receiver module further receives second information; the first threshold power is not less than a first lower limit power, and the first threshold power is not greater than a first upper limit power; the second information and the power class of the user equipment are used to determine at least one of the first lower power limit and the first upper power limit; the second information is transmitted over the air interface.

As an embodiment, the user equipment used for wireless communication above is characterized in that the first receiver module further receives a first reference signal; measurements for the first reference signal are used to determine a first path loss, the first target power and the second target power each being linearly related to the first path loss.

As an embodiment, the user equipment used for wireless communication is characterized in that the second transmitter module further transmits a second reference signal; the second reference signal is used for demodulation of the second wireless signal, and a transmission power of the second reference signal is equal to the second power.

As an embodiment, the user equipment used for wireless communication is characterized in that the first receiver module further receives third information; the third information is used for indicating at least one of the first type of air interface resource pool and the second type of air interface resource pool; the first type of air interface resource pool comprises K1 first type of air interface resource sets, and the first type of air interface resource set is one of the K1 first type of air interface resource sets; the second air interface resource pool comprises K2 second air interface resource sets, and the second air interface resource set is one of the K2 second air interface resource sets; the user equipment sends the first wireless signal in the first air interface resource set and sends the second wireless signal in the second air interface resource set; the third information is transmitted over an air interface; the K1 and the K2 are both positive integers.

The application discloses a base station device used for wireless communication, characterized by comprising:

a first transceiver module receiving a first wireless signal;

a second receiver module to receive a second wireless signal;

As an embodiment, the above base station apparatus for wireless communication is characterized in that the first transceiver module further transmits first information; when the first power and the second power are both less than the first threshold power, a difference between the first power and the second power is equal to a first power difference, and the first information is used to indicate the first power difference; the first information is transmitted over the air interface.

As an embodiment, the above base station apparatus for wireless communication is characterized in that the first transceiver module further transmits second information; the first threshold power is not less than a first lower limit power, and the first threshold power is not greater than a first upper limit power; the second information and a power level of a sender of the first wireless signal are used to determine at least one of the first lower power limit and the first upper power limit; the second information is transmitted over the air interface.

As an embodiment, the base station apparatus for wireless communication described above is characterized in that the first transceiver module further transmits a first reference signal; measurements for the first reference signal are used to determine a first path loss, the first target power and the second target power each being linearly related to the first path loss.

As an embodiment, the base station apparatus for wireless communication described above is characterized in that the second receiver module further receives a second reference signal; the second reference signal is used for demodulation of the second wireless signal, and a transmission power of the second reference signal is equal to the second power.

As an embodiment, the base station apparatus used for wireless communication described above is characterized in that the first transceiver module further transmits third information; the third information is used for indicating at least one of the first type of air interface resource pool and the second type of air interface resource pool; the first type of air interface resource pool comprises K1 first type of air interface resource sets, and the first type of air interface resource set is one of the K1 first type of air interface resource sets; the second air interface resource pool comprises K2 second air interface resource sets, and the second air interface resource set is one of the K2 second air interface resource sets; the user equipment sends the first wireless signal in the first air interface resource set and sends the second wireless signal in the second air interface resource set; the third information is transmitted over an air interface; the K1 and the K2 are both positive integers.

As an example, compared with the conventional scheme, the method has the following advantages:

associating the first power with the second power; for the base station, there are only two cases where the relationship between the first power and the second power is equal and the power difference between the first power and the second power is known at the base station side; and then guarantee the base station when adopting the demodulation of helping the second radio signal through the receipt of first radio signal, only need according to above-mentioned two kinds of condition carry out blind detection can, reduce the complexity that the base station received, improve transmission performance.

The base station may flexibly configure the first power difference by configuring parameters related to the first target power and the second target power, particularly by using the first information, and raise the power of the Preamble as needed to improve the receiving performance of the Preamble; and then flexibly raising the Preamble power to improve the receiving performance of the Preamble on the premise of not exceeding the first threshold power.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

fig. 1 shows a flow diagram of a first wireless signal according to an embodiment of the application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

figure 4 shows a schematic diagram of an evolved node and a UE according to an embodiment of the present application;

FIG. 5 shows a flow diagram of a second wireless signal according to an embodiment of the present application;

fig. 6 shows a schematic diagram of a first set of air interface resources and a second set of air interface resources according to an embodiment of the present application;

fig. 7 shows a schematic diagram of Q air interface resources according to an embodiment of the present application;

fig. 8 is a schematic diagram illustrating a time-frequency resource occupied by an air interface resource according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a given wireless signal according to an embodiment of the present application;

fig. 10 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;

fig. 11 shows a block diagram of a processing device for use in a base station according to an embodiment of the present application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a flow chart of a first wireless signal, as shown in fig. 1.

In embodiment 1, the ue in this application first determines a first target power and a second target power, where the first target power and the second target power are used to determine a first power and a second power, respectively; subsequently transmitting the first wireless signal at a first power; and transmitting a second wireless signal at a second power; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

As a sub-embodiment, at least one of the first target power and the second target power is not less than the first threshold power, and both the first power and the second power are equal to the first threshold power.

As a sub-embodiment, the transmission of the second wireless signal is Grant-Free (Grant-Free).

As a sub-embodiment, the transmission of the second wireless signal is Contention-Based (Contention-Based).

As a sub-embodiment, there is no scheduling of uplink grant signaling in the transmission of the first wireless signal.

As a sub-embodiment, the transmission of the first wireless signal is contention-based.

As a sub-embodiment, the small scale fading experienced by the first wireless signal can be used to determine the small scale fading experienced by the second wireless signal.

As a sub-embodiment, the user equipment transmits the first wireless signal and the second wireless signal using the same Antenna Port (AP).

As a sub-embodiment, the user equipment transmits the first wireless signal and the second wireless signal using the same antenna port group; the antenna port group comprises a positive integer number of antenna ports.

As a sub-embodiment, the reception of the first wireless signal can be used to determine the demodulation of the second wireless signal.

As a sub-embodiment, the result of the channel estimation for the first wireless signal can be used for demodulation of the second wireless signal.

As a sub-embodiment, the detection of the first wireless signal is used to determine the timing of the transmission of the second wireless signal.

As a sub-embodiment, the detection of the first wireless signal is used to determine whether the second wireless signal is transmitted.

As a sub-embodiment, if the first power and the second power are both less than the first threshold power, the first power and the second power are not equal.

As a sub-embodiment, the first wireless signal is generated from a signature sequence.

As a sub-embodiment, all or part of bits of a Transport Block (TB) are sequentially subjected to Transport Block CRC (Cyclic Redundancy Check) addition, Code Block Segmentation (Code Block Segmentation), Code Block CRC addition, Rate Matching (Rate Matching), Concatenation (Concatenation), Scrambling (Scrambling), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and Baseband Signal Generation (Baseband Signal Generation).

As a sub-embodiment, the air interface resource occupied by the first radio signal carries all or a part of the characteristic identifier of the user equipment.

As a sub-embodiment, the air interface resource occupied by the second wireless signal carries all or a part of the characteristic identifier of the user equipment.

As a sub-embodiment, the air interface resource occupied by the second wireless signal is used to generate a scrambling sequence of the second wireless signal, generate an interleaving sequence of the second wireless signal, and generate at least one of a mask sequence of the second wireless signal.

As a sub-embodiment, the first wireless signal includes a preamble sequence.

As a sub-embodiment, the first wireless Signal comprises a DMRS (Demodulation Reference Signal).

As a sub-embodiment, the first wireless signal is used to determine a first identity.

As an additional embodiment of this sub-embodiment, the first identity is specific to the user equipment.

As an additional embodiment of this sub-embodiment, the first identifier is generated by the user equipment itself.

As an additional embodiment of this sub-embodiment, the first identifier is used for generating the first wireless signal.

As an additional embodiment of this sub-embodiment, the first identifier is used for Scrambling (Scrambling) the first wireless signal.

As an additional embodiment of this sub-embodiment, the first identifier is a multiple Access Signature (multiple Access Signature).

As a sub-embodiment, the physical channel corresponding to the second wireless signal is PUSCH.

As a sub-embodiment, the transmission Channel corresponding to the second wireless signal is an UL-SCH (Uplink Shared Channel).

As a sub-embodiment, the first target power and the second target power are independently determined by the user equipment.

As a sub-embodiment, the first threshold power corresponds to P in TS38.213_CMAX,f,c(i) (ii) a Wherein f represents a carrier on which the first wireless signal and the second wireless signal are located in a frequency domain, c represents a serving cell in which the first wireless signal and the second wireless signal are located, and i represents a transmission timing of the first wireless signal and the second wireless signal.

As a sub-embodiment, the unit of the first power is dBm (decibels).

As a sub-embodiment, the unit of the first power is milliwatts.

As a sub-embodiment, the unit of the second power is dBm.

As a sub-embodiment, the unit of the second power is milliwatts.

As a sub-embodiment, the first target power is in dBm.

As a sub-embodiment, the first target power has a unit of milliwatts.

As a sub-embodiment, the second target power is in dBm.

As a sub-embodiment, the second target power has a unit of milliwatts.

As a sub-embodiment, the fact that the air interface resource occupied by the second wireless signal is related to the air interface resource occupied by the first wireless signal means that: the second wireless signal occupies a second set of air interface resources, and the first wireless signal occupies a first set of air interface resources; the second air interface resource set is one of M1 second-type air interface resource sets, and the first air interface resource set is one of M1 first-type air interface resource sets; the M1 second-type air interface resource sets respectively correspond to the M1 first-type air interface resource sets one to one; the index of the first set of air interface resources in the M1 sets of first type of air interface resources is used to determine the second set of air interface resources from the M1 sets of second type of air interface resources; the M1 is a positive integer greater than 1.

As a sub-embodiment, the fact that the modulation and coding scheme adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal means that: the second wireless signal adopts a first modulation and coding mode, and the first modulation and coding mode is one of M2 candidate modulation and coding modes; the first wireless signal occupies a first set of air interface resources; the first air interface resource set is one of M2 first-type air interface resource sets; the M2 candidate modulation and coding schemes respectively correspond to the M2 first-class air interface resource sets one to one; indexes of the first air interface resource set in the M2 first-class air interface resource sets are used for determining the first modulation and coding mode from the M2 candidate modulation and coding modes; the M2 is a positive integer greater than 1.

As a sub-embodiment, the ue is an RRC (Radio Resource Control) Idle (Idle) ue.

As a sub-embodiment, the ue is an RRC Inactive (Inactive) ue.

As a sub-embodiment, the air interface in the present application corresponds to the interface between the UE201 and the NR node B203 in embodiment 2.

As a sub-embodiment, the air interface in the present application is carried over a radio channel.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 is a diagram illustrating a network architecture 200 of NR5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The NR5G or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NR-RANs (next generation radio access networks) 202, 5G-CNs (5G-Core networks, 5G Core networks)/EPCs (Evolved Packet cores) 210, HSS (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NR-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (point of transmission reception), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5G-CN/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine-type communication device, a terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5G-CN/EPC210 through an S1/NG interface. The 5G-CN/EPC210 includes MME/AMF/UPF211, other MME (mobility Management entity)/AMF (Authentication Management Field)/UPF (User Plane Function) 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and 5G-CN/EPC 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a PS streaming service (PSs).

As a sub-embodiment, the UE201 corresponds to the UE in the present application.

As a sub-embodiment, the gNB203 corresponds to the base station in this application.

As a sub-embodiment, the UE201 supports wireless communication for data transmission over an unlicensed spectrum.

As a sub-embodiment, the gNB203 supports wireless communication for data transmission over unlicensed spectrum.

As a sub-embodiment, the UE201 supports NOMA (Non-Orthogonal Multiple Access) based wireless communication.

As a sub-embodiment, the gNB203 supports NOMA-based wireless communications.

As a sub-embodiment, the UE201 supports Grant-Free uplink transmission.

As a sub-embodiment, the gNB203 supports Grant-Free uplink transmission.

As a sub-embodiment, the UE201 supports contention-based uplink transmission.

As a sub-embodiment, the gNB203 supports contention-based uplink transmission.

As a sub-embodiment, the UE201 supports Beamforming (Beamforming) based uplink transmission.

As a sub-embodiment, the gNB203 supports beamforming-based uplink transmission.

As a sub-embodiment, the UE201 supports uplink transmission of a Multi-antenna system based on Massive Multi-Input Multi-Output (Massive MIMO).

As a sub-embodiment, the gNB203 supports Massive-MIMO based uplink transmission.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3.

Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for the User Equipment (UE) and the base station equipment (gNB or eNB) in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY 301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the gNB on the network side. Although not shown, the UE may have several upper layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and handover support for UEs between gnbs. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat reQuest). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and the gNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the gNB and the UE.

As a sub-embodiment, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.

As a sub-embodiment, the radio protocol architecture of fig. 3 is applicable to the base station in the present application.

As a sub-embodiment, the first wireless signal in the present application is generated in the PHY 301.

As a sub-embodiment, the second wireless signal in the present application is generated in the PHY 301.

As a sub-embodiment, the first information in the present application is generated in the PHY 301.

As a sub-embodiment, the first information in the present application is generated in the MAC sublayer 302.

As a sub-embodiment, the first information in the present application is generated in the RRC sublayer 306.

As a sub-embodiment, the second information in this application is generated in the RRC sublayer 306.

As a sub-embodiment, the third information in the present application is generated in the RRC sublayer 306.

As a sub-embodiment, the first reference signal in the present application is generated in the PHY 301.

As a sub-embodiment, the second reference signal in this application is generated in the PHY 301.

Example 4

Embodiment 4 shows a schematic diagram of a base station device and a user equipment according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a gNB410 in communication with a UE450 in an access network.

The base station apparatus (410) includes a controller/processor 440, memory 430, receive processor 412, transmit processor 415, transmitter/receiver 416, and antenna 420.

User equipment (450) includes controller/processor 490, memory 480, data source 467, transmit processor 455, receive processor 452, transmitter/receiver 456, and antenna 460.

In UL (Uplink) transmission, processing related to a base station apparatus (410) includes:

a receiver 416 receiving the radio frequency signal through its corresponding antenna 420, converting the received radio frequency signal to a baseband signal, and providing the baseband signal to the receive processor 412;

a receive processor 412 that performs various signal receive processing functions for the L1 layer (i.e., the physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, among others;

a receive processor 412 that performs various signal receive processing functions for the L1 layer (i.e., the physical layer) including multi-antenna reception, Despreading (Despreading), code division multiplexing, precoding, etc.;

a controller/processor 440 implementing L2 layer functions and associated memory 430 storing program codes and data;

the controller/processor 440 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450; upper layer packets from controller/processor 440 may be provided to the core network;

in UL transmission, processing related to a user equipment (450) includes:

a data source 467 that provides upper layer data packets to the controller/processor 490. Data source 467 represents all protocol layers above the L2 layer;

a transmitter 456 for transmitting a radio frequency signal via its respective antenna 460, converting the baseband signal into a radio frequency signal and supplying the radio frequency signal to the respective antenna 460;

a transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, and physical layer signaling generation, etc.;

a transmit processor 455 implementing various signal reception processing functions for the L1 layer (i.e., physical layer) including multi-antenna transmission, Spreading, code division multiplexing, precoding, etc.;

controller/processor 490 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation of the gNB410, performs L2 layer functions for the user plane and control plane;

the controller/processor 490 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the gNB 410;

in DL (Downlink) transmission, processing related to a base station apparatus (410) includes:

a controller/processor 440, upper layer packet arrival, controller/processor 440 providing packet header compression, encryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer protocols for the user plane and the control plane; the upper layer packet may include data or control information, such as DL-SCH (Downlink Shared Channel);

a controller/processor 440 associated with a memory 430 that stores program codes and data, the memory 430 may be a computer-readable medium;

a controller/processor 440 comprising a scheduling unit to transmit the requirements, the scheduling unit being configured to schedule air interface resources corresponding to the transmission requirements;

a transmit processor 415 that receives the output bit stream of the controller/processor 440, performs various signal transmission processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, and physical layer control signaling (including PBCH, PDCCH, PHICH, PCFICH, reference signal) generation, etc.;

a transmit processor 415, receiving the output bit stream of the controller/processor 440, implementing various signal transmit processing functions for the L1 layer (i.e., physical layer) including multi-antenna transmission, spreading, code division multiplexing, precoding, etc.;

a transmitter 416 for converting the baseband signal provided by the transmit processor 415 into a radio frequency signal and transmitting it via an antenna 420; each transmitter 416 samples a respective input symbol stream to obtain a respective sampled signal stream. Each transmitter 416 further processes (e.g., converts to analog, amplifies, filters, upconverts, etc.) the respective sample stream to obtain a downlink signal.

In DL transmission, the processing related to the user equipment (450) may include:

a receiver 456 for converting radio frequency signals received via an antenna 460 to baseband signals for provision to the receive processor 452;

a receive processor 452 that performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, and physical layer control signaling extraction, etc.;

a receive processor 452, which performs various signal receive processing functions for the L1 layer (i.e., physical layer) including multi-antenna reception, despreading, code division multiplexing, precoding, and the like;

a controller/processor 490 receiving the bit stream output by the receive processor 452, providing packet header decompression, decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer protocols for the user plane and the control plane;

the controller/processor 490 is associated with a memory 480 that stores program codes and data. Memory 480 may be a computer-readable medium.

As a sub-embodiment, the UE450 apparatus comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, the UE450 apparatus at least: first determining a first target power and a second target power, which are used to determine a first power and a second power, respectively; secondly, sending a first wireless signal with first power; and transmitting a second wireless signal at a second power; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

As a sub-embodiment, the UE450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: first determining a first target power and a second target power, which are used to determine a first power and a second power, respectively; secondly, sending a first wireless signal with first power; and transmitting a second wireless signal at a second power; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

As a sub-embodiment, the gNB410 apparatus comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The gNB410 apparatus at least: receiving a first wireless signal and receiving a second wireless signal; a first target power and a second target power are used to determine a first power and a second power, respectively, a transmission power of the first wireless signal being the first power, a transmission power of the second wireless signal being the second power; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

As a sub-embodiment, the gNB410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first wireless signal and receiving a second wireless signal; a first target power and a second target power are used to determine a first power and a second power, respectively, a transmission power of the first wireless signal being the first power, a transmission power of the second wireless signal being the second power; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

As a sub-embodiment, the UE450 corresponds to a user equipment in the present application.

As a sub-embodiment, the gNB410 corresponds to a base station in the present application.

As a sub-embodiment, at least two of the transmitter 456, the transmit processor 455, and the controller/processor 490 are used to determine a first target power and a second target power, which are used to determine a first power and a second power, respectively; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, and the first power and the second power are respectively equal to the first target power and the second target power.

As a sub-embodiment, at least the first two of the transmitter 456, the transmit processor 455, and the controller/processor 490 are used to transmit the first wireless signal at the first power.

As a sub-embodiment, at least the first two of the transmitter 456, transmit processor 455, and controller/processor 490 are used to transmit the second wireless signal at the second power.

As an auxiliary embodiment of the two sub-embodiments, at least one of an air interface resource occupied by the second wireless signal and a modulation and coding scheme adopted by the second wireless signal is related to an air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the first information.

As a sub-embodiment, at least the first two of the receiver 456, the receive processor 452, and the controller/processor 490 are used to receive the second information.

As a sub-embodiment, at least the first two of the receiver 456, receive processor 452, and controller/processor 490 are used to receive the first reference signal.

As a sub-embodiment, at least the first two of the transmitter 456, the transmit processor 455, and the controller/processor 490 are used to transmit the second reference signal.

As a sub-embodiment, at least the first two of receiver 456, receive processor 452, and controller/processor 490 are used for the third information.

As a sub-embodiment, at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive a first wireless signal; at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are also used to receive a second wireless signal; a first target power and a second target power are used to determine a first power and a second power, respectively, a transmission power of the first wireless signal being the first power, a transmission power of the second wireless signal being the second power; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

As an auxiliary embodiment of this sub-embodiment, the receiving the first wireless signal means: at least two of the receiver 416, the receive processor 412, and the controller/processor 440 are configured to blindly detect the first wireless signal from the first type of air interface resource pool in this application.

As an auxiliary embodiment of this sub-embodiment, the receiving the second wireless signal refers to: at least the first two of the receiver 416, the receiving processor 412, and the controller/processor 440 implement determining the air interface resources occupied by the second wireless signal from the second air interface resource pool in the present application by blindly detecting the first wireless signal from the first air interface resource pool in the present application.

As a sub-embodiment, at least two of the receiver 416, the receive processor 412, and the controller/processor 440 are further configured to determine the relationship of the first power and the second power according to the following two assumptions, respectively:

assume 1. the first power is equal to the second power;

assume 2. the difference in power between the first power and the second power is equal to a first power difference, which is known to the base station apparatus 410.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the first information.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the second information.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to transmit the first reference signal.

As a sub-embodiment, at least the first two of the receiver 416, the receive processor 412, and the controller/processor 440 are used to receive the second reference signal.

As a sub-embodiment, at least the first two of the transmitter 416, the transmit processor 415, and the controller/processor 440 are used to send the third information.

Example 5

Embodiment 5 illustrates a flow chart of a second wireless signal, as shown in fig. 5. In fig. 5, base station N1 is the serving cell maintaining base station for user equipment U2. In the figure, the steps in the boxes identified as F0 and F1 are optional.

For theBase station N1Transmitting a first reference signal in step S10; transmitting third information in step S11; transmitting the second information in step S12; transmitting the first information in step S13; receiving a first wireless signal in step S14; receiving a second reference signal in step S15; the second wireless signal is received in step S16.

For theUser equipment U2In step S20, a first reference signal is received(ii) a Receiving third information in step S21; receiving second information in step S22; receiving the first information in step S23; determining a first target power and a second target power in step S24; transmitting a first wireless signal at a first power in step S25; transmitting a second reference signal in step S26; the second wireless signal is transmitted at the second power in step S27.

In embodiment 5, the first target power and the second target power are used to determine a first power and a second power, respectively; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface; when the first power and the second power are both less than the first threshold power, a difference between the first power and the second power is equal to a first power difference, and the first information is used to indicate the first power difference; the first information is transmitted over the air interface; the first threshold power is not less than a first lower limit power, and the first threshold power is not greater than a first upper limit power; the second information and the power class of the user equipment U2 are used to determine at least one of the first lower power limit and the first upper power limit; the second information is transmitted over the air interface; a measurement for the first reference signal is used to determine a first path loss, the first target power and the second target power each being linearly related to the first path loss; the second reference signal is used for demodulation of the second wireless signal, a transmission power of the second reference signal is equal to the second power; the third information is used for indicating at least one of the first type of air interface resource pool and the second type of air interface resource pool; the first type of air interface resource pool comprises K1 first type of air interface resource sets, and the first type of air interface resource set is one of the K1 first type of air interface resource sets; the second air interface resource pool comprises K2 second air interface resource sets, and the second air interface resource set is one of the K2 second air interface resource sets; the user equipment U2 sends the first wireless signal in the first set of air interface resources, and the user equipment U2 sends the second wireless signal in the second set of air interface resources; the third information is transmitted over an air interface; the K1 and the K2 are both positive integers.

As a sub-embodiment, the first information is further used to indicate: when the user equipment U2 determines that at least one of the first target power and the second target power is not less than a first threshold power, the first power and the second power are equal.

As a sub-embodiment, the first power difference is one of P candidate power differences, and the first information determines the first power difference from the P candidate power differences, where P is a positive integer greater than 1.

As an additional embodiment of this sub-embodiment, the P candidate power differences are each predefined.

As an additional embodiment of this sub-embodiment, the P candidate power differences are configured by higher layer signaling.

As a sub-embodiment, the first information is used to indicate a first parameter and a second parameter, respectively, the first power difference is related to a difference of the first parameter and the second parameter.

As a subsidiary embodiment of this sub-embodiment, said first parameter is a first target received power for said first radio signal and said second parameter is a second target received power for said second radio signal.

As an additional embodiment of this sub-embodimentThe first parameter and the second parameter are respectively P in 3GPPTS38.213_{PRACH,target,f,c}And P_{O_PUSCH,f,c}(j) Wherein j is related to the type corresponding to the second wireless signal.

As an additional embodiment of the sub-embodiment, the first parameter and the second parameter are P in 3gpp ts38.213 respectively_{PRACH,target,f,c}And P_{O_NOMINAL_PUSCH,f,c(j)}J is related to the type to which the second wireless signal corresponds.

As an example of the above two subsidiary embodiments, the type includes at least one of { grant-free data transmission, transmission based on random access feedback grant, transmission based on grant }.

As a sub-embodiment, the first information is transmitted through physical layer signaling.

As an auxiliary embodiment of the sub-embodiment, the physical layer signaling is a DCI (Downlink Control Information).

As an additional embodiment of this sub-embodiment, the physical layer signaling is cell-specific or terminal group-specific, and the user equipment U2 is a terminal in the terminal group.

As an additional embodiment of this sub-embodiment, the CRC included in the physical layer signaling is scrambled by a given RNTI (Radio Network Temporary Identifier); the given RNTI is common to a cell, or the given RNTI is specific to a terminal group to which the user equipment belongs.

As a sub-embodiment, the first information is transmitted by higher layer signaling.

As an additional embodiment of this sub-embodiment, the higher layer signaling is an RRC signaling.

As an additional embodiment of this sub-embodiment, the higher layer signaling is cell-specific, or the higher layer signaling is terminal group-specific, to which the user equipment belongs.

As a sub-embodiment, the unit of the first power difference is dB (decibel).

As a sub-embodiment, the first threshold power is self-selected by the user device U2 within a range defined by the first lower power limit and the first upper power limit.

As a sub-embodiment, the power class of the user equipment U2 is referenced to PowerClass in TS 38.101.

As a sub-embodiment, the power level of the user equipment U2 and P in the TS38.101_PowerClassIt is related.

As a sub-embodiment, P in the first upper limit power reference TS38.101_{CMAX_H,c}Wherein c represents a serving cell in which the first wireless signal and the second wireless signal are located.

As a sub-embodiment, P in the first lower power reference TS38.101_{CMAX_L,c}Wherein c represents a serving cell in which the first wireless signal and the second wireless signal are located.

As a sub-embodiment, a coefficient of a linear correlation between the first target power and the first path loss is a first coefficient, and a coefficient of a linear correlation between the second target power and the first path loss is a second coefficient.

As an additional example of this sub-embodiment, the first coefficient and the second coefficient are each a decimal number not greater than 1.

As an additional embodiment of this sub-embodiment, the first coefficient is equal to the second coefficient.

As an additional embodiment of this sub-embodiment, the first factor is equal to 1 and the second factor is equal to 1.

As a sub-embodiment, the first reference signal is transmitted over the air interface.

As a sub-embodiment, the first Reference Signal includes at least one of SSS (Secondary Synchronization Signal) and DMRS (Demodulation Reference Signal) for PBCH (Physical Broadcasting Channel) Demodulation.

As a sub-embodiment, the first reference Signal comprises SSB (Synchronization Signal Block).

As a sub-embodiment, the user equipment U2 obtains downlink synchronization for the base station N1 through the first reference signal.

As a sub-embodiment, the first target power is determined by the following formula:

P₁(i)＝P_PRACH,Target+(K-1)·ΔP_rampup+α_f,c·PL_f,c[dBm]

wherein, P₁(i) Is the first target power, i represents a transmission time of the first radio signal, f represents a carrier in which the first radio signal is located in a frequency domain, c represents a serving cell in which the first radio signal is located, and P represents_PRACH,TargetConfigured by higher layer signaling, PL_f,cCorresponding to the first path loss and the user equipment U2 is obtained by receiving the first reference signal.

As an additional example of this sub-embodiment, Δ P_rampupIs configured through higher layer signaling.

As an additional embodiment of this sub-embodiment, the Δ P_rampupEqual to 0.

As an additional embodiment of this sub-embodiment, K is a positive integer, and K represents that the first wireless signal is currently the kth transmission.

As an additional embodiment of this sub-embodiment, K is fixed and equal to 1.

As an additional embodiment of this sub-embodiment, the alpha_f,cEqual to 1.

P₁＝P_PRACH,Target+PL_f,c[dBm]

wherein, P₁Is the first target power, f represents a carrier on which the first radio signal is located in the frequency domain, c represents a carrier on which the first radio signal is locatedServing cell, P_PRACH,TargetConfigured by higher layer signaling, PL_f,cCorresponding to the first path loss and the user equipment U2 is obtained by receiving the first reference signal.

As a sub-embodiment, the second target power is determined by the following formula:

wherein, P₂(i,j,q_dL) is the second target power, i represents the transmission time of the second radio signal, j is related to the type of the second radio signal, f represents the carrier on which the second radio signal is located in the frequency domain, c represents the serving cell in which the second radio signal is located, q) is the target power, i represents the transmission time of the second radio signal, j represents the carrier on which the second radio signal is located, f represents the carrier on which the frequency domain is located, c represents the serving cell in which the second radio signal is located, and q represents the target power_dCorresponding to said first reference signal, l is configurable, P_{O_PUSCH,f,c}(j) Is configured through a higher layer signaling and,

α is related to the number of RBs (resource Block) occupied by the second radio signal in the frequency domain_f,c(j) Represents a path loss compensation factor, the PL_f,c(q_d) Corresponding to the first path loss, Δ_TF,f,c(i) And f_f,c(i, l) refer to the definition in TS 38.213.

As an additional embodiment of this sub-embodiment, j is equal to 1.

As an additional embodiment of this sub-embodiment, the alpha_f,c(j) Equal to 1.

As an additional embodiment of this sub-embodiment, the

Is configured through higher layer signaling.

As an additional embodiment of this sub-embodiment, the

Is equal to

The above-mentioned

Related to the number of RBs occupied by the second radio signal.

As a sub-embodiment, the second reference signal is transmitted over the air interface.

As a sub-embodiment, the second reference signal includes an uplink demodulation reference signal.

As a sub-embodiment, the second Reference Signal includes SRS (Sounding Reference Signal).

As a sub-embodiment, the second wireless signal comprises the second reference signal.

As a sub-embodiment, the user equipment U2 selects the first air interface resource set from the K1 first air interface resource sets by itself.

As a sub-embodiment, the K1 is equal to the K2, and the K1 first-type air interface resource sets respectively correspond to the K2 second-type air interface resource sets one to one.

As an auxiliary embodiment of the sub-embodiment, the indexes of the first air interface resource set in the K1 first-type air interface resource sets are used to determine the second air interface resource set from the K2 second-type air interface resource sets.

As a sub-embodiment, the third information is RRC signaling.

As a sub-embodiment, the third information is cell-specific.

As a sub-embodiment, the third information is specific to a terminal group, and the user device U2 is a terminal in the terminal group.

As a sub-embodiment, the air interface resource in the present application is one of a time domain resource, a frequency domain resource, and a code domain resource.

As a sub-embodiment, the base station N1 determines the first set of air interface resources from the K1 sets of first type of air interface resources through blind detection.

As an additional embodiment of this sub-embodiment, the blind detection comprises at least one of energy detection and signature sequence detection.

As a sub-embodiment, the ue U2 considers that the uplink wireless signal can be directly sent in the first air interface resource pool without being scheduled by the base station N1.

As a sub-embodiment, the ue U2 considers that it is able to directly transmit uplink radio signals in the second type air interface resource pool without scheduling of the base station N1.

As a sub-embodiment, the base station N1 receives the first wireless signal and the second wireless signal respectively according to the following two assumptions:

let 1: the first power is equal to the second power;

let 2: the first power is not equal to the second power, and the difference between the first power and the second power is equal to a first power difference.

As an additional embodiment of this sub-embodiment, the base station N1 knows the first power difference before receiving the first wireless signal.

As a sub-embodiment, the first power difference is fixed.

Example 6

Embodiment 6 illustrates a schematic diagram of a first set of air interface resources and a second set of air interface resources, as shown in fig. 6. In fig. 6, the first air interface resource set is one of K1 first-type air interface resource sets, and the first-type air interface resource pool includes K1 first-type air interface resource sets; the second air interface resource set is one of K1 second-class air interface resource sets, and the second-class air interface resource pool comprises K1 second-class air interface resource sets; the K1 is a positive integer greater than 1.

As a sub-embodiment, the K1 second-type air interface resource sets respectively correspond to the K1 first-type air interface resource sets one to one.

As a sub-embodiment, the base station in this application determines the first set of air interface resources from the K1 second-type sets of air interface resources through blind detection, and receives the first wireless signal in the first set of air interface resources.

As a sub-embodiment, indexes of the first air interface resource sets in the K1 first-type air interface resource sets are equal to K3, and K3 is a positive integer greater than 0 and not greater than K1; indexes of the second air interface resource sets in the K1 second-type air interface resource sets are also equal to the K3.

As a sub-embodiment, in the present application, the base station determines, through indexes of the first air interface resource sets in the K1 first-type air interface resource sets, positions of the second air interface resource sets in the K1 second-type air interface resource sets.

As a sub-embodiment, any one of the K1 first-type air interface Resource sets includes a positive integer number of REs (Resource elements).

As a sub-embodiment, any one of the K1 first-type air interface resource sets includes a positive integer number of multicarrier symbols in a time domain, and includes a positive integer number of subcarriers in a frequency domain.

As a sub-embodiment, any two first type air interface resource sets of the K1 first type air interface resource sets all occupy the same number of REs.

As a sub-embodiment, the K1 first-type air interface resource sets all occupy a positive integer number of REs at the same time-frequency position, and the K1 first-type air interface resource sets respectively correspond to K1 different OCCs (Orthogonal Code, Orthogonal mask).

As a sub-embodiment, the K1 first-type air interface resource sets all occupy a positive integer number of REs at the same time-frequency position, and the K1 first-type air interface resource sets respectively correspond to K1 different multiple access signatures.

As a sub-embodiment, any one of the K1 second-type air interface resource sets includes a positive integer number of REs.

As a sub-embodiment, any one of the K1 second-type sets of air interface resources includes a positive integer number of multicarrier symbols in the time domain and includes a positive integer number of subcarriers in the frequency domain.

As a sub-embodiment, any two second-type air interface resource sets in the K1 second-type air interface resource sets occupy the same number of REs.

As a sub-embodiment, the K1 second-type air interface resource sets all occupy a positive integer number of REs at the same time-frequency position, and the K1 second-type air interface resource sets respectively correspond to K1 different OCCs.

As a sub-embodiment, the K1 second-type air interface resource sets all occupy positive integer REs at the same time-frequency position, and the K1 second-type air interface resource sets respectively correspond to K1 different multiple access signatures.

As a sub-embodiment, any one of the Multi-Carrier symbols in the present application is one of an OFDM (Orthogonal Frequency Division Multiplexing) symbol, an SC-FDMA (Single-Carrier Frequency Division Multiplexing Access) symbol, an FBMC (Filter Bank Multi-Carrier) symbol, an OFDM symbol including a CP (Cyclic Prefix), and a DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing) symbol including a CP.

Example 7

Embodiment 7 illustrates a schematic diagram of Q air interface resources, as shown in fig. 7. In fig. 7, the time frequency resources occupied by the air interface resources #0, #1, …, # (Q-1) belong to the same time frequency resource block, which is indicated by the thick line box in fig. 8; the air interface resources #0, #1, …, # (Q-1) correspond to Q different code domain resources, i.e. multiple access signatures, respectively.

As a sub-embodiment, the air interface resources #0, #1, # …, # (Q-1) all occupy the same RE in the same time-frequency resource block.

As an auxiliary embodiment of the sub-embodiment, the air interface resources #0, #1, # …, # (Q-1) all occupy the REs except for the RS (Reference Signal) allocated in the same time-frequency resource block.

As a sub-embodiment, the Q air interface resources share at least one multicarrier symbol in the time domain.

As a sub-embodiment, the Q air interface resources are completely overlapped in the time domain.

As a sub-embodiment, the Q air interface resources are completely overlapped in a time domain, and the Q air interface resources are completely overlapped in a frequency domain.

As a sub-embodiment, at least two air interface resources #0, #1, # …, # (Q-1) occupy different REs in the same time-frequency resource block.

As an additional embodiment of the sub-embodiment, the above-described sub-embodiment is applicable to a scheme like SCMA (Sparse code multiple access).

As a sub-embodiment, Q modulation symbols are mapped to REs occupied by the air interface resources #0, #1, # …, # (Q-1) after being multiplied by the Q different code domain resources, respectively, that is, the Q modulation symbols realize code division multiplexing.

As a sub-embodiment, any one of the K1 first-type air interface resource sets in this application includes a positive integer of the air interface resources.

As an auxiliary embodiment of the sub-embodiment, the Q is equal to the K1, and the Q air interface resources in fig. 7 respectively belong to the K1 first-class air interface resource sets.

As an auxiliary embodiment of the sub-embodiment, the positive integer number of the air interface resources included in any one first type of air interface resource set corresponds to the same multiple access signature and occupies different REs.

As a sub-embodiment, any one of the K2 second-class air interface resource sets in this application includes a positive integer of the air interface resources.

As an auxiliary embodiment of this sub-embodiment, Q is equal to K2, and the Q air interface resources in fig. 7 respectively belong to the K2 second-class air interface resource sets.

As an auxiliary embodiment of the sub-embodiment, the positive integer number of the air interface resources included in any one second-type air interface resource set correspond to the same multiple access signature and occupy different REs.

Example 8

Embodiment 8 illustrates a schematic diagram of a time-frequency resource occupied by an air interface resource, as shown in fig. 8. In fig. 8, a thin line square represents an RE, and a thick line square represents a time-frequency resource block; the time frequency resource block occupies M sub-carriers in a frequency domain, occupies N multi-carrier symbols in a time domain, and the time frequency resource occupied by one air interface resource belongs to the time frequency resource block.

As a sub-embodiment, modulation symbols in multiple air interface resources are mapped to the time-frequency resource block in a code division multiplexing manner.

As a sub-embodiment, for each air interface resource in a plurality of air interface resources, all elements in a corresponding multiple access signature are mapped in REs of the time-frequency resource block according to the first criterion of frequency domain and the second criterion of time domain after being multiplied by modulation symbols.

As a sub-embodiment, for each air interface resource in a plurality of air interface resources, all elements in a corresponding multiple access signature are mapped in REs of the time-frequency resource block according to a criterion of a first time domain and a second frequency domain after being multiplied by modulation symbols.

As a sub-embodiment, all elements in the multiple access signature included in one air interface resource are multiplied by modulation symbols according to a_M,1，A_M-1,1，A_M-2,1，…，A_1,1，A_M,2，A_M-1,2，A_M-2,2，…，A_M,N，A_M-N,1，A_M-N,1，…，A_1,NAnd mapping in turn within REs of the time-frequency resource block, wherein occupation of REs not allocated to the air interface resource (if any) is avoided.

As a sub-embodiment, all elements in the multiple access signature included in one air interface resource are multiplied by modulation symbols according to a_M,1，A_M,2，A_M,3，…，A_M,N，A_M-1,1，A_M-1,2，A_M-1,3，…，A_M-1,N，A_1,1，A_1,2，…，A_1,NAnd mapping in turn within REs of the time-frequency resource block, wherein occupation of REs not allocated to the air interface resource (if any) is avoided.

As a sub-embodiment, the REs not allocated to the air interface resource are allocated to DMRS.

As a sub-embodiment, the REs not allocated to the air interface resource are allocated to an SRS.

As an embodiment, the REs not allocated to the air interface resource are allocated to a PUCCH (Physical Uplink Control Channel).

As an embodiment, the time-frequency Resource Block belongs to a PRB (Physical Resource Block).

As an embodiment, the time-frequency Resource Block belongs to a PRBP (Physical Resource Block Pair).

As one embodiment, M is not greater than 12 and N is not greater than 14.

As an example, said M and said N are equal to 12 and 14, respectively.

Example 9

Example 9 illustrates a schematic diagram of a given wireless signal, as shown in fig. 9. In fig. 9, a thin line frame represents a time-frequency resource block, a thick line frame represents a time-frequency resource block set, and a given wireless signal includes all the time-frequency resource blocks in fig. 9 in the time-frequency domain, that is, corresponds to the time-frequency resources occupied by one time-frequency resource block set.

As a sub-embodiment, said one given radio signal corresponds to said first radio signal in the present application.

As a sub-embodiment, said one given radio signal corresponds to said second radio signal in the present application.

As a sub-embodiment, in this application, a time-frequency resource occupied by any one first type air interface resource set among the K1 first type air interface resource sets is equal to a time-frequency resource occupied by the one time-frequency resource block set.

As a sub-embodiment, the time-frequency resource occupied by the first type of air interface resource pool in the present application is equal to the time-frequency resource occupied by the time-frequency resource block set.

As a sub-embodiment, in the present application, a time-frequency resource occupied by any one of the K2 second-type air interface resource sets is equal to a time-frequency resource occupied by the one time-frequency resource block set.

As a sub-embodiment, the time-frequency resource occupied by the second-type air interface resource pool in the present application is equal to the time-frequency resource occupied by the time-frequency resource block set.

As a sub-embodiment, said one given radio signal corresponds to said second reference signal in the present application.

Example 10

Embodiment 10 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 10. In fig. 10, the UE processing apparatus 1000 mainly comprises a first receiver module 1001, a first transmitter module 1002 and a second transmitter module 1003.

A first receiver module 1001 to determine a first target power and a second target power, the first target power and the second target power being used to determine a first power and a second power, respectively;

a first transmitter module 1002, configured to transmit a first wireless signal at a first power;

a second transmitter module 1003 transmitting a second wireless signal at a second power;

in embodiment 10, at least one of the first target power and the second target power is not less than a first threshold power, and the first power is equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

As a sub-embodiment, the first receiver module 1001 further receives first information; when the first power and the second power are both less than the first threshold power, a difference between the first power and the second power is equal to a first power difference, and the first information is used to indicate the first power difference; the first information is transmitted over the air interface.

As a sub-embodiment, the first receiver module 1001 also receives second information; the first threshold power is not less than a first lower limit power, and the first threshold power is not greater than a first upper limit power; the second information and the power class of the user equipment are used to determine at least one of the first lower power limit and the first upper power limit; the second information is transmitted over the air interface.

As a sub-embodiment, the first receiver module 1001 also receives a first reference signal; measurements for the first reference signal are used to determine a first path loss, the first target power and the second target power each being linearly related to the first path loss.

As a sub-embodiment, the second transmitter module 1003 further transmits a second reference signal; the second reference signal is used for demodulation of the second wireless signal, and a transmission power of the second reference signal is equal to the second power.

As a sub-embodiment, the first receiver module 1001 further receives third information; the third information is used for indicating at least one of the first type of air interface resource pool and the second type of air interface resource pool; the first type of air interface resource pool comprises K1 first type of air interface resource sets, and the first type of air interface resource set is one of the K1 first type of air interface resource sets; the second air interface resource pool comprises K2 second air interface resource sets, and the second air interface resource set is one of the K2 second air interface resource sets; the user equipment sends the first wireless signal in the first air interface resource set and sends the second wireless signal in the second air interface resource set; the third information is transmitted over an air interface; the K1 and the K2 are both positive integers.

As a sub-embodiment, the first receiver module 1001 includes at least two of the receiver 456, the receive processor 452, and the controller/processor 490 of embodiment 4.

As a sub-embodiment, the first transmitter module 1002 includes at least two of the transmitter 456, the transmit processor 455, and the controller/processor 490 of embodiment 4.

As a sub-embodiment, the second transmitter module 1003 includes at least two of the transmitter 456, the transmit processor 455, and the controller/processor 490 of embodiment 4.

Example 11

Embodiment 11 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 11. In fig. 11, the base station device processing apparatus 1100 is mainly composed of a first transceiver module 1101 and a second receiver module 1102.

A first transceiver module 1101 that receives a first wireless signal;

a second receiver module 1102 receiving a second wireless signal;

in embodiment 11, a first target power and a second target power are used to determine a first power and a second power, respectively, a transmission power of the first wireless signal is the first power, and a transmission power of the second wireless signal is the second power; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface.

As a sub-embodiment, the first transceiver module 1101 also transmits first information; when the first power and the second power are both less than the first threshold power, a difference between the first power and the second power is equal to a first power difference, and the first information is used to indicate the first power difference; the first information is transmitted over the air interface.

As a sub-embodiment, the first transceiver module 1101 also transmits second information; the first threshold power is not less than a first lower limit power, and the first threshold power is not greater than a first upper limit power; the second information and a power level of a sender of the first wireless signal are used to determine at least one of the first lower power limit and the first upper power limit; the second information is transmitted over the air interface.

As a sub-embodiment, the first transceiver module 1101 also transmits a first reference signal; measurements for the first reference signal are used to determine a first path loss, the first target power and the second target power each being linearly related to the first path loss.

As a sub-embodiment, the second receiver module 1102 also receives a second reference signal; the second reference signal is used for demodulation of the second wireless signal, and a transmission power of the second reference signal is equal to the second power.

As a sub-embodiment, the first transceiver module 1101 further transmits third information; the third information is used for indicating at least one of the first type of air interface resource pool and the second type of air interface resource pool; the first type of air interface resource pool comprises K1 first type of air interface resource sets, and the first type of air interface resource set is one of the K1 first type of air interface resource sets; the second air interface resource pool comprises K2 second air interface resource sets, and the second air interface resource set is one of the K2 second air interface resource sets; the user equipment sends the first wireless signal in the first air interface resource set and sends the second wireless signal in the second air interface resource set; the third information is transmitted over an air interface; the K1 and the K2 are both positive integers.

As a sub-embodiment, the first transceiver module 1101 includes at least the first four of the receiver/transmitter 416, the transmit processor 415, the receive processor 412, and the controller/processor 440 of embodiment 4.

As a sub-embodiment, the second receiver module 1102 includes at least two of the receiver 416, the receive processor 412, and the controller/processor 440 of embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, Communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, Machine Type Communication (MTC) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, equipment such as low-cost panel computer. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, a gNB (NR node B), a TRP (Transmitter Receiver Point), and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method in a user equipment used for wireless communication, comprising:

transmitting a first wireless signal at a first power;

transmitting a second wireless signal at a second power;

wherein at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface; the transmission of the second wireless signal is grant-free; and no scheduling of uplink authorization signaling exists in the transmission of the first wireless signal.

2. A method in a base station used for wireless communication, comprising:

receiving a first wireless signal;

receiving a second wireless signal;

wherein a first target power and a second target power are used to determine a first power and a second power, respectively, a transmission power of the first wireless signal being the first power, a transmission power of the second wireless signal being the second power; at least one of the first target power and the second target power is not less than a first threshold power, the first power being equal to the second power; or the first target power and the second target power are both less than the first threshold power, the first power and the second power being equal to the first target power and the second target power, respectively; at least one of an air interface resource occupied by the second wireless signal and a modulation coding mode adopted by the second wireless signal is related to the air interface resource occupied by the first wireless signal; the transmission ending time of the first wireless signal is earlier than the transmission starting time of the second wireless signal in the time domain; the first wireless signal and the second wireless signal are both transmitted over an air interface; the transmission of the second wireless signal is grant-free; and no scheduling of uplink authorization signaling exists in the transmission of the first wireless signal.

3. A user device configured for wireless communication, comprising:

4. The UE of claim 3, wherein the first receiver module further receives first information; when the first power and the second power are both less than the first threshold power, a difference between the first power and the second power is equal to a first power difference, and the first information is used to indicate the first power difference; the first information is transmitted over the air interface.

5. The user equipment of claim 3 or 4, wherein the first receiver module further receives second information; the first threshold power is not less than a first lower limit power, and the first threshold power is not greater than a first upper limit power; the second information and the power class of the user equipment are used to determine at least one of the first lower power limit and the first upper power limit; the second information is transmitted over the air interface.

6. The user equipment of any of claims 3-5, wherein the first receiver module further receives a first reference signal; measurements for the first reference signal are used to determine a first path loss, the first target power and the second target power each being linearly related to the first path loss.

7. The UE of any of claims 3 to 6, wherein the second transmitter module further transmits a second reference signal; the second reference signal is used for demodulation of the second wireless signal, and a transmission power of the second reference signal is equal to the second power.

8. The user equipment according to any of claims 3 to 7, wherein the first receiver module further receives third information; the third information is used for indicating at least one of the first type of air interface resource pool and the second type of air interface resource pool; the first type of air interface resource pool comprises K1 first type of air interface resource sets, and the first type of air interface resource set is one of the K1 first type of air interface resource sets; the second air interface resource pool comprises K2 second air interface resource sets, and the second air interface resource set is one of the K2 second air interface resource sets; the user equipment sends the first wireless signal in the first air interface resource set, and the user equipment sends the second wireless signal in the second air interface resource set; the third information is transmitted over an air interface; the K1 and the K2 are both positive integers.

9. The user equipment according to any of claims 3-8, wherein the detection of the first radio signal is used for determining the transmission timing of the second radio signal.

10. The user equipment according to any of claims 3-9, wherein the detection of the first radio signal is used to determine whether the second radio signal is transmitted.

11. The user equipment according to any of claims 4 to 10, wherein the phrase that the first information is used to indicate the meaning of the first power difference comprises: the first power difference is one of P candidate power differences, the first information determines the first power difference from the P candidate power differences, and P is a positive integer greater than 1; the P candidate power differences are all configured through higher layer signaling.

12. A base station device used for wireless communication, comprising:

a first transceiver module receiving a first wireless signal;

a second receiver module to receive a second wireless signal;