CN110677928B

CN110677928B - Method and device used in user equipment and base station for wireless communication

Info

Publication number: CN110677928B
Application number: CN201810714250.XA
Authority: CN
Inventors: 陈晋辉; 张晓博; 杨林
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2018-07-03
Filing date: 2018-07-03
Publication date: 2021-05-28
Anticipated expiration: 2038-07-03
Also published as: CN110677928A

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 user equipment receives a first reference signal set, transmits a first wireless signal and monitors a second wireless signal in a first time window in sequence, a first reference signal group is one of the first reference signal set, a first condition is used for triggering the transmission of the first wireless signal, the first condition is that the quality of a first wireless link estimated based on the measurement of the first reference signal group is worse than a target threshold value, and if a first channel is used for transmitting the first wireless signal, the target threshold value is equal to a first threshold value; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal. The declaration ensures the timeliness and reliability of the transmission of the link recovery request.

Description

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 multi-antenna transmission technology.

Background

Large-scale (Massive) MIMO (Multi-Input Multi-Output) is a research hotspot for next-generation mobile communication. In massive MIMO, multiple antennas form a narrow beam pointing in a specific direction by beamforming to improve communication quality.

In 3GPP (3rd generation partner Project) new air interface discussion, a company proposes that a UE (User equipment) should measure a service Beam during communication, and when the quality of the service Beam is found to be poor, the UE sends a link Recovery Request (Beam Recovery Request) to a base station, and the base station then changes the service Beam.

Disclosure of Invention

The inventor finds, through research, that both a PUCCH (Physical Uplink Control Channel) and a PRACH (Physical Random Access Channel) can be used for a user equipment to send a link recovery request to a base station, and if the user equipment uses the same threshold to monitor the radio link quality, the advantage of using different channels to transmit the link recovery request may not be fully utilized.

The present application provides a solution to the above problems. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict. For example, embodiments and features in embodiments in the user equipment of the present application may be applied in the base station and vice versa.

The application discloses a method used in a user equipment for wireless communication, which is characterized by comprising the following steps:

-receiving a first set of reference signals, a first set of reference signals being one set of reference signals of said first set of reference signals;

-transmitting a first wireless signal, a first condition being used to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made on the first set of reference signals is worse than a target threshold;

-monitoring a second wireless signal within a first time window, a transmission time point of the first wireless signal being used for determining the first time window;

wherein the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information to which a second set of spatial reception parameters used to monitor the second wireless signal is associated.

As an example, one benefit of the above approach is that: the wireless channel used for transmitting the link recovery request is different from the threshold used for triggering the link recovery request, so that the base station can naturally distinguish the wireless link quality by the transmission channel.

As an example, another benefit of the above method is: different wireless link quality deterioration triggers are sent by adopting wireless channels with different reliability, so that the timeliness and the reliability of sending the link recovery request are ensured.

Specifically, according to one aspect of the invention, the method is characterized by comprising the following steps

-receiving a third wireless signal, a third set of spatial reception parameters used for receiving the third wireless signal being associated with the first set of spatial reception parameters used for receiving the first set of reference signals.

As an example, one benefit of the above approach is that: the method in the present application may be used to reflect at least one of a reception beam quality of a monitored PDCCH and a transmission beam quality of a transmitted PDCCH.

Specifically, according to one aspect of the present invention, if the first channel is used for transmitting the first wireless signal, a first bit block generates the first wireless signal after being subjected to channel coding, and a value of the first bit block is used for indicating the first information; if the second channel is used for transmitting the first wireless signal, a first signature sequence is used for generating the first wireless signal, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used for indicating the first information.

As an example, one benefit of the above approach is: the channel with different robustness is adopted to transmit the link recovery request, so that the transmission delay of the link recovery request is reduced, and the robustness of the link recovery request is increased.

As an example, one benefit of the above approach is: different indication modes are adopted to transmit the link recovery request, so that the transmission delay of the link recovery request is reduced, and the robustness of the link recovery request is improved.

Specifically, according to one aspect of the present invention, the first channel is a physical control channel, and the second channel is a physical random access channel.

As an example, one benefit of the above approach is: the minimum interval of the physical control channel is short, and the reliability of the physical random access channel is high, so that the requirements of reducing the transmission delay of the link recovery request and meeting the robustness of the link recovery request are met.

In particular, according to one aspect of the invention, a target measure is used to characterize the first radio link quality, the target measure differing from the first threshold by an absolute value smaller than the target measure differing from the second threshold.

As an example, one benefit of the above approach is: the threshold value corresponding to the better quality of the wireless link can be used for triggering the channel transmission link recovery request with poorer reliability and smaller transmission delay, and the threshold value corresponding to the poorer quality of the wireless link can be used for triggering the channel transmission link recovery request with better reliability and larger transmission delay, so that the timeliness of the transmission link recovery request and the transmission reliability of the transmission link recovery request are ensured.

-receiving a second set of reference signals;

wherein a second reference signal group is one of the second reference signal set, a second condition is used for selecting the second reference signal group from the second reference signal set, the second condition is that a second radio link quality measured based on the second reference signal group is not worse than a third threshold, and the first information is used for indicating the second reference signal group.

As an example, one benefit of the above approach is: and selecting the wireless link meeting the quality requirement of the wireless link through the measurement of the reference signal set, thereby supporting the optimal configuration of the wireless link.

Specifically, according to an aspect of the present invention, the method includes:

-receiving second information;

wherein the second information is used to indicate the first threshold and the second threshold.

As an example, one benefit of the above approach is: the support system flexibly configures the threshold value for sending the beam recovery request according to the system requirement and the transmission environment.

The application discloses a method used in a base station device for wireless communication, which is characterized by comprising the following steps:

-transmitting a first set of reference signals, a first set of reference signals being one set of reference signals of said first set of reference signals;

-monitoring a first wireless signal, a first condition being used to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made on the first set of reference signals is worse than a target threshold;

-transmitting a second wireless signal within a first time window, a reception time point of the first wireless signal being used for determining the first time window;

wherein the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information, and a second set of spatial transmission parameters used to transmit the second wireless signal is associated with the first information.

-transmitting a third radio signal, a third set of spatial transmission parameters used for transmitting the third radio signal being associated with the first set of spatial transmission parameters used for transmitting the first set of reference signals.

Specifically, according to one aspect of the present invention, if the first channel is used for transmitting the first wireless signal, the first wireless signal obtains a first bit block after channel decoding, and the value of the first bit block is used for determining the first information; if the second channel is used for transmitting the first wireless signal, the first wireless signal is used for determining a first signature sequence, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used for determining the first information.

-transmitting a second set of reference signals;

-transmitting the second information;

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

-a first receiver module receiving a first set of reference signals, a first set of reference signals being one set of reference signals of said first set of reference signals;

-a second transmitter module for transmitting a first wireless signal, a first condition being used for triggering the transmission of the first wireless signal, the first condition being that a first radio link quality estimated based on the measurement of the first set of reference signals is worse than a target threshold;

-a third receiver module monitoring a second wireless signal within a first time window, a transmission time point of the first wireless signal being used for determining the first time window;

As an embodiment, the user equipment is characterized in that a third receiver module receives a third radio signal, and a third set of spatial reception parameters used for receiving the third radio signal is associated with the first set of spatial reception parameters used for receiving the first set of reference signals.

As an embodiment, the above user equipment is characterized in that if the first channel is used for transmitting the first radio signal, a first bit block generates the first radio signal after being channel coded, and a value of the first bit block is used for indicating the first information; if the second channel is used for transmitting the first wireless signal, a first signature sequence is used for generating the first wireless signal, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used for indicating the first information.

As an embodiment, the user equipment is characterized in that the first channel is a physical control channel, and the second channel is a physical random access channel.

As an embodiment, the above user equipment is characterized in that a target measurement value is used for characterizing the first radio link quality, the target measurement value differing from the first threshold by an absolute value smaller than the target measurement value differing from the second threshold by an absolute value.

As an embodiment, the above user equipment is characterized in that the first receiver module receives a second set of reference signals; wherein a second reference signal group is one of the second reference signal set, a second condition is used for selecting the second reference signal group from the second reference signal set, the second condition is that a second radio link quality measured based on the second reference signal group is not worse than a third threshold, and the first information is used for indicating the second reference signal group.

As an embodiment, the ue is characterized in that the first receiver module receives second information; wherein the second information is used to indicate the first threshold and the second threshold.

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

-a first transmitter module to transmit a first set of reference signals, a first set of reference signals being one set of reference signals of the first set of reference signals;

-a second receiver module monitoring a first wireless signal, a first condition being used to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made on the first set of reference signals is worse than a target threshold;

-a third transmitter module for transmitting a second wireless signal within a first time window, a reception time point of the first wireless signal being used for determining the first time window;

As an embodiment, the base station apparatus is characterized in that the third transmitter module transmits a third wireless signal, and a third spatial transmission parameter set used for transmitting the third wireless signal is associated with a first spatial transmission parameter set used for transmitting the first reference signal group.

As an embodiment, the base station device is characterized in that, if the first channel is used for transmitting the first wireless signal, the first wireless signal obtains a first bit block after channel decoding, and a value of the first bit block is used for determining the first information; if the second channel is used for transmitting the first wireless signal, the first wireless signal is used for determining a first signature sequence, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used for determining the first information.

As an embodiment, the base station device is characterized in that the first channel is a physical control channel, and the second channel is a physical random access channel.

As an embodiment, the base station apparatus described above is characterized in that a target measurement value is used to characterize the first radio link quality, the target measurement value differing from the first threshold by an absolute value smaller than an absolute value of the target measurement value differing from the second threshold.

As an embodiment, the base station device is characterized in that the first transmitter module transmits a second reference signal set; wherein a second reference signal group is one of the second reference signal set, a second condition is used for selecting the second reference signal group from the second reference signal set, the second condition is that a second radio link quality measured based on the second reference signal group is not worse than a third threshold, and the first information is used for indicating the second reference signal group.

As an embodiment, the base station device is characterized in that the first transmitter module transmits second information; wherein the second information is used to indicate the first threshold and the second threshold.

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

the different wireless channels used to send the link recovery request have different thresholds for triggering the link recovery request, so that the base station can naturally distinguish the wireless link quality by the sending channel.

As an embodiment, different wireless link quality deterioration triggers are sent by adopting wireless channels with different reliability, so that the timeliness and the reliability of sending the link recovery request are ensured.

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 set of reference signals, a first wireless signal, and a second wireless signal according to one 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 wireless transmission according to one embodiment of the present application;

FIG. 6 shows a schematic diagram of a first time window according to an embodiment of the present application;

FIG. 7 illustrates a schematic diagram of transmission of a first wireless signal according to one embodiment of the present application;

FIG. 8 shows a schematic diagram of a set of spatial parameters according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a set of antenna ports for transmitting wireless signals 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 set of reference signals, a first wireless signal and a second wireless signal, as shown in fig. 1.

In embodiment 1, the ue in this application sequentially receives a first reference signal set, transmits a first radio signal, and monitors a second radio signal within a first time window; the first set of reference signals is one set of reference signals of the first set of reference signals; a first condition is used to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made on the first set of reference signals is worse than a target threshold; a transmission time point of the first wireless signal is used for determining the first time window; the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information to which a second set of spatial reception parameters used to monitor the second wireless signal is associated.

As a sub-embodiment, the monitoring means that the ue determines whether the second radio signal is received through energy detection.

As a sub-embodiment, the monitoring means that the ue determines whether the second radio signal is received through channel decoding and redundancy check.

As a sub-embodiment, the first set of Reference signals includes CSI-RS (Channel State Information Reference Signal).

As a sub-embodiment, the first set of reference signals includes SS (Synchronization Signal).

As a sub-embodiment, the first set of reference signals includes SS (Synchronization Signal)/PBCH (Physical Broadcast Channel) blocks.

As a sub-embodiment, the first set of reference signals consists of periodic reference signals.

As a sub-embodiment, the first set of reference signals includes reference signals other than the reference signals within the first set of reference signals.

As a sub-embodiment, the first set of reference signals includes a plurality of reference signals.

As a sub-embodiment, the first set of reference signals comprises only one reference signal.

As a sub-embodiment, within one subframe, antenna ports correspond to reference signals one to one.

As a sub-embodiment, the air interface resources occupied by the reference signals corresponding to different antenna ports are different.

As a sub-embodiment, the air interface resource includes at least one of a time domain resource, a frequency domain resource, and a code domain resource.

As a sub-embodiment, the antenna port is formed by superimposing a plurality of physical antennas through antenna Virtualization (Virtualization), and mapping coefficients from the antenna port to the plurality of physical antennas form a beamforming vector for the antenna Virtualization to form a beam.

As a sub-embodiment, the channel experienced by a symbol transmitted on one antenna port may be used to infer the channel experienced by another symbol transmitted on the same antenna port.

As a sub-embodiment, an antenna port used for transmitting a PDCCH (Physical Downlink Control Channel) on a first Control resource set (Control resource set) is spatially QCL (Quasi Co-located) with an antenna port used for transmitting the first reference signal group.

As a sub-embodiment, the spatial QCL for two wireless signals means that the set of spatial parameters used to receive one wireless signal is used to infer the set of spatial parameters used to receive the other wireless signal.

As a sub-embodiment, two wireless signals QCL spatially means that the receive beam used to receive one wireless signal is used to infer the receive beam used to receive the other wireless signal.

As a sub-embodiment, the two wireless signals QCL spatially refers to either a receive beam used to receive one wireless signal or a receive beam used to receive another wireless signal.

As a sub-embodiment, the two wireless signals are spatially QCL comprising the same large scale characteristics of the channel experienced by the two wireless signals.

As a sub-embodiment, the antenna port used for transmitting PDCCH on the first set of control resources and the antenna port used for transmitting the first set of reference signals is QCL and the Type of QCL is QCL Type D in 3GPP TS 38.211.

As a sub-embodiment, the set of spatial reception parameters used for monitoring PDCCH on the first set of control resources is used to infer the set of spatial reception parameters used for receiving the first set of reference signals.

As a sub-embodiment, the receive beams used for monitoring PDCCH on the first set of control resources are used to infer the receive beams used for receiving the first set of reference signals.

As a sub-embodiment, the receive beam used for monitoring PDCCH on the first set of control resources is strongly correlated with the receive beam used for receiving the first set of reference signals.

As a sub-embodiment, a receive beam used for monitoring PDCCH on the first set of control resources is used for receiving the first set of reference signals.

As a sub-embodiment, the target threshold is a target Signal to Interference plus Noise Ratio (SINR), and the first radio link quality is a first SINR measured based on the received first reference Signal group, and the first SINR is smaller than the target SINR.

As a sub-embodiment, the target threshold is a target Block Error Rate, the first radio link quality is a first Block Error Rate (BLER) calculated according to a signal-to-interference-and-noise ratio measured based on the received first reference signal group, and the first Block Error Rate is higher than the target Block Error Rate.

As a sub-embodiment, the first radio link quality is an average.

As a sub-embodiment, the first radio link quality is a running average.

As a sub-embodiment, the transmission time point of the first wireless signal is used for determining a starting time point of the first time window.

As a sub-embodiment, the transmission time point of the first wireless signal is used to determine the sub-frame where the starting time point of the first time window is located.

As a sub-embodiment, the length of the first time window is determined by default.

As a sub-embodiment, the length of the first time window is configured by the base station.

As a sub-embodiment, the first information is not repeatedly transmitted after the first wireless signal until the end of the first time window.

As a sub-embodiment, the user equipment monitors the second wireless signal on a set of control resources within the first time window.

As a sub-embodiment, the sub-frame number of the first time window is obtained by adding a first offset value to the sub-frame number of the first wireless signal.

As a sub-embodiment, the first offset value is equal to 4.

As a sub-embodiment, the second set of spatial reception parameters is used to generate a reception beam used to monitor the second wireless signal.

As a sub-embodiment, a set of spatial receive parameters is used to generate the receive beams and a set of spatial transmit parameters is used to generate the transmit beams.

As a sub-embodiment, the set of spatial receive parameters includes parameters that act on a phase shifter on the radio frequency link.

As a sub-embodiment, the set of spatial receive parameters includes parameters that act on the phase and amplitude on the baseband link of the antenna.

As a sub-embodiment, the set of spatial transmit parameters includes parameters that act on a phase shifter on the radio frequency link.

As a sub-embodiment, the set of spatial transmit parameters includes parameters that act on the phase and amplitude on the baseband links of the antennas.

As a sub-embodiment, the first channel and the second channel are two different types of channels.

As a sub-embodiment, the first Channel is a PUCCH (Physical Uplink Control Channel), and the second Channel is a PRACH (Physical Random Access Channel).

As a sub-embodiment, the first Channel is a PUSCH (Physical Uplink Shared Channel), and the second Channel is a PRACH.

As a sub-embodiment, the first channel is PUSCH and the second channel is PUCCH.

As a sub-embodiment, the same information is transmitted on the first channel and the second channel in different processing manners.

As a sub-embodiment, the first information is a beam recovery request.

As a sub-embodiment, the first information is a link recovery request.

As a sub-embodiment, the user equipment receives a third radio signal, a third set of spatial reception parameters used for receiving the third radio signal being associated with a first set of spatial reception parameters used for receiving the first set of reference signals.

As a sub-embodiment, the third wireless signal is a PDCCH.

As a sub-embodiment, the third set of spatial reception parameters is the same as the first set of spatial reception parameters.

As a sub-embodiment, the third spatial reception parameter set is used to derive the first spatial reception parameter set.

As a sub-embodiment, the antenna port used to transmit the third wireless signal is spatially QCL with the antenna port used to transmit the first reference signal group.

As a sub-embodiment, if the first channel is used for transmitting the first wireless signal, a first bit block generates the first wireless signal after being channel coded, and a value of the first bit block is used for indicating the first information; if the second channel is used for transmitting the first wireless signal, a first signature sequence is used for generating the first wireless signal, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used for indicating the first information.

As a sub-embodiment, a Polar Code (Polar Code) is used for the channel coding.

As a sub-embodiment, a convolutional Code (Turbo Code) is used for the channel coding.

As a sub-embodiment, one bit field in the first bit block is used to indicate the first information.

As a sub-embodiment, the first bit block is a UCI (Uplink Control Information) block.

As a sub-embodiment, the K candidate signature sequences are all Zadoff-Chu sequences.

As a sub-embodiment, the K candidate signature sequences are all m-sequences.

As a sub-embodiment, the first channel is a physical control channel and the second channel is a physical random access channel.

As a sub-embodiment, the reliability of the second channel is higher than the first channel.

As a sub-embodiment, the second channel has a higher reliability than the first channel, a target measurement is used to characterize the first radio link quality, the target measurement differing from the first threshold by an absolute value less than the target measurement differing from the second threshold.

As a sub-embodiment, the target measurement is a signal to interference plus noise ratio.

As a sub-embodiment, the target measurement is block error rate.

As a sub-embodiment, the user equipment receives a second set of reference signals; wherein a second reference signal group is one of the second reference signal set, a second condition is used for selecting the second reference signal group from the second reference signal set, the second condition is that a second radio link quality measured based on the second reference signal group is not worse than a third threshold, and the first information is used for indicating the second reference signal group.

As a sub-embodiment, the second radio link quality is a signal to interference plus noise ratio.

As a sub-embodiment, the second radio link quality is a block error rate.

As a sub-embodiment, the base station indicates the third threshold.

As a sub-embodiment, the third threshold is configured by default.

As a sub-embodiment, the second set of spatial receive parameters is used to receive the second set of reference signals.

As a sub-embodiment, the second set of spatial receive parameters is used to generate receive beams used to receive the second set of reference signals.

As a sub-embodiment, the set of spatial receiving parameters used to receive the second set of reference signals is used to derive the second set of spatial receiving parameters.

As a sub-embodiment, the antenna port used to transmit the second set of wireless signals is spatially QCL with the antenna port used to transmit the second set of reference signals.

As a sub-embodiment, the antenna port used to transmit the second set of wireless signals and the antenna port QCL used to transmit the second set of reference signals are QCL Type D.

As a sub-embodiment, the user equipment receives second information; wherein the second information is used to indicate the first threshold and the second threshold.

As a sub-embodiment, the second information is carried by Higher-layer Signaling (high-layer Signaling).

As a sub-embodiment, the second Information is an IE (Information Element) in an RRC (Radio Resource Control) signaling.

Example 2

Embodiment 2 illustrates 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, NG-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 NG-RAN includes NR node b (gNB)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 is a terminal supporting wireless communication over an unlicensed spectrum.

As a sub-embodiment, the UE201 is a terminal supporting grant free (grant free) transmission.

As a sub-embodiment, the UE201 is a terminal supporting beamforming.

As a sub-embodiment, the UE201 is a terminal supporting narrowband LBT.

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

As a sub-embodiment, the gNB203 supports grant-less transmission.

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

Example 3

Embodiment 3 illustrates radio protocol architectures for the user plane and the control plane, 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 set of reference signals in the present application is generated in the PHY 301.

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 this application is generated in the PHY 301.

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

As a sub-embodiment, the second set of reference signals in the present application is generated in the PHY 301.

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

Example 4

Embodiment 4 illustrates a base station apparatus and a user equipment, 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 controller/processor 440, which determines to transmit downlink signaling/data to be transmitted; and sends the results to send processor 415;

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, precoding, power control/allocation, and physical layer control signaling (including PBCH, PDCCH, PHICH, PCFICH, reference signal) generation, 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 multi-antenna reception, demodulation, descrambling, deinterleaving, decoding, and physical layer control signaling extraction, etc.;

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: receiving a first set of reference signals, a first set of reference signals being one set of reference signals of the first set of reference signals; transmitting a first wireless signal, a first condition being used to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made on the first set of reference signals is worse than a target threshold; monitoring a second wireless signal within a first time window, a transmission time point of the first wireless signal being used to determine the first time window; wherein the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information to which a second set of spatial reception parameters used to monitor the second wireless signal is associated.

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: transmitting a first wireless signal, a first condition being used to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made on the first set of reference signals is worse than a target threshold; monitoring a second wireless signal within a first time window, a transmission time point of the first wireless signal being used to determine the first time window; wherein the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information to which a second set of spatial reception parameters used to monitor the second wireless signal is associated.

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: transmitting a first set of reference signals, a first set of reference signals being one set of reference signals of the first set of reference signals; monitoring a first wireless signal, a first condition being used to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made with the first set of reference signals is worse than a target threshold; transmitting a second wireless signal within a first time window, a reception time point of the first wireless signal being used to determine the first time window; wherein the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information, and a second set of spatial transmission parameters used to transmit the second wireless signal is associated with the first information.

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: transmitting a first set of reference signals, a first set of reference signals being one set of reference signals of the first set of reference signals; monitoring a first wireless signal, a first condition being used to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made with the first set of reference signals is worse than a target threshold; transmitting a second wireless signal within a first time window, a reception time point of the first wireless signal being used to determine the first time window; wherein the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information, and a second set of spatial transmission parameters used to transmit the second wireless signal is associated with the first information.

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, the receiver 456 and the receive processor 452 are configured to receive a first set of reference signals in this application.

As a sub-embodiment, at least the first two of the transmitter 456, the transmit processor 455, and the controller/processor 490 transmit the first wireless signal in this application.

As a sub-embodiment, at least the first two of the receiver 456, receive processor 452, and controller/processor 490 are used to monitor the second wireless signal in this application.

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 third wireless signal in this application.

As a sub-embodiment, the receiver 456 and the receive processor 452 are configured to receive a second set of reference signals in this application.

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 in this application.

As a sub-embodiment, the transmitter 416 and the transmit processor 415 are used to transmit the first set of reference signals 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 used to monitor the first wireless signal in this application.

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 wireless signal in this application.

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 third wireless signal in this application.

As a sub-embodiment, the transmitter 416 and the transmit processor 415 are used to transmit the second set of reference signals in the present application.

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 in the present application.

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission, 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 box identified as F1, the box identified as F2, and the box identified as F3 are optional.

For theBase station N1The second information is transmitted in step S11, the third wireless signal is transmitted in step S12, the second set of reference signals is transmitted in step S13, the first set of reference signals is transmitted in step S14, the first wireless signal is monitored in step S15, and the second wireless signal is transmitted in step S16.

For theUser equipment U2The second information is received in step S21, the third wireless signal is received in step S22, the second set of reference signals is received in step S23, the first set of reference signals is received in step S24, the first wireless signal is transmitted in step S25, and the second wireless signal is received in step S26.

In embodiment 5, a first reference signal group is one reference signal group in the first reference signal set; a first condition is used by U2 to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made with the first set of reference signals is worse than a target threshold; the transmission time point of the first wireless signal is used by N1 and U2 to determine the first time window; the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used by U2 to indicate first information, a second set of spatial reception parameters used by U2 to monitor the second wireless signal is associated with the first information, and a second set of spatial transmission parameters used by N1 to transmit the second wireless signal is associated with the first information.

As a sub-embodiment, the step in block F2 exists, the third set of spatial receive parameters used by U2 to receive the third wireless signal is associated with the first set of spatial receive parameters used by U2 to receive the first set of reference signals, and the third set of spatial transmit parameters used by N1 to transmit the third wireless signal is associated with the first set of spatial transmit parameters used to transmit the first set of reference signals.

As a sub-embodiment, if the first channel is used for transmitting the first wireless signal, a first bit block generates the first wireless signal after being channel coded, and the value of the first bit block is used by U2 to indicate the first information; if the second channel is used for transmitting the first wireless signal, a first signature sequence is used by U2 for generating the first wireless signal, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used by U2 for indicating the first information.

As a sub-embodiment, a target measure is used to characterize the first radio link quality, the target measure differing from the first threshold by less than the absolute value of the target measure differing from the second threshold.

As a sub-embodiment, the step in block F3 exists, a second reference signal group is one of the second reference signal set, a second condition is used to select the second reference signal group from the second reference signal set, the second condition is that a second radio link quality measured based on the second reference signal group is not worse than a third threshold, and the first information is used by U2 to indicate the second reference signal group.

As a sub-embodiment, the step in block F1 exists, the second information is used by N1 to indicate the first threshold and the second threshold.

Example 6

Example 6 illustrates a first time window in the present application, as shown in fig. 6.

In embodiment 6, the ue sequentially receives a first reference signal set in the present application, transmits a first radio signal in the present application, and monitors a second radio signal in the present application within a first time window in the present application. The transmission time point of the first wireless signal is used to determine the starting point of the first time window. The first time interval is a time interval between a transmission time point of the first wireless signal and a start point of the first time window.

As a sub-embodiment, the first time interval is 0.

As a sub-embodiment, the first time interval is greater than 0 ms.

As a sub-embodiment, the first time interval is configured by default.

As a sub-embodiment, the first time interval is configured by the base station.

As an embodiment, the subframe number of the first wireless signal is used to determine the subframe of the start of the first time window.

As a sub-embodiment, the ue does not repeatedly transmit the first information in the present application between the first wireless signal and the end time of the first time window.

Example 7

Embodiment 7 exemplifies transmission of a first wireless signal in the present application, as shown in fig. 7.

In embodiment 7, if a first channel in the present application is used to transmit a first wireless signal in the present application, a value of a first bit block in the present application is used to indicate the first information, and the first bit block sequentially undergoes channel coding, redundancy check addition, rate matching, scrambling, modulation mapping, precoding, resource element mapping, and multicarrier symbol generation processing to generate the first wireless signal. If the second channel in the present application is used to transmit the first wireless signal, the first signature sequence sequentially undergoes precoding, resource element mapping, and multicarrier symbol generation processing to generate the first wireless signal.

As a sub-embodiment, the first channel is a PUCCH and the second channel is a PRACH.

As a sub-embodiment, a polar code is used for the channel coding.

As a sub-embodiment, Turbo code is used for the channel coding.

As a sub-embodiment, an OFDM (Orthogonal Frequency Division Multiplexing) symbol is used to carry the first wireless signal.

As a sub-embodiment, DFT-s-OFDM (Discrete fourier Transform spread Orthogonal Frequency Division Multiplexing) symbols are used to carry the first radio signal.

As a sub-embodiment, the first signature sequence is a Zadoff-Chu sequence.

Example 8

Example 8 illustrates the set of spatial parameters in the present application, as shown in fig. 8.

In embodiment 8, the base station in the present application sequentially transmits the third radio signal, the second reference signal group, the first reference signal group, and the second radio signal in the present application to the user equipment in the present application. The third spatial transmission parameter set in the present application is the first spatial transmission parameter set in the present application, and the third spatial reception parameter set in the present application is the first spatial reception parameter set in the present application. The first set of spatial transmit parameters is used to generate a first transmit beam and the first set of spatial receive parameters is used to generate a first receive beam. The first transmit beam and the first receive beam are used by the base station and the user equipment to transmit and receive the third wireless signal, respectively. The second set of spatial transmit parameters in this application is used to generate the second transmit beam and the second set of spatial receive parameters in this application is used to generate the second receive beam. The second transmit beam and the second receive beam are used by the base station and the user equipment to transmit and receive, respectively, the second set of reference signals. The first transmit beam and the first receive beam are then used by the base station and the user equipment to transmit and receive, respectively, the first set of reference signals. The second transmit beam and the second receive beam are then used by the base station and the user equipment to transmit and receive, respectively, the second wireless signal. The first transmit beam and the second transmit beam are different. The first receive beam and the second receive beam are different.

As a sub-embodiment, the third wireless signal and the second wireless signal are both PDCCHs.

As a sub-embodiment, the antenna port used to transmit the second wireless signal is spatially QCL with the antenna port used to transmit the second reference signal group.

Example 9

Embodiment 9 illustrates an antenna port group for transmitting a wireless signal, as shown in fig. 9.

In embodiment 9, one antenna port group includes a positive integer number of antenna ports; one antenna port is formed by superposing antennas in a positive integer number of antenna groups through antenna Virtualization (Virtualization); one antenna group includes a positive integer number of antennas. One antenna group is connected to the baseband processor through one RF (Radio Frequency) chain, and different antenna groups correspond to different RF chains. The mapping coefficients of all antennas in the positive integer number of antenna groups included by a given antenna port to the given antenna port constitute a beamforming vector corresponding to the given antenna port. Mapping coefficients of a plurality of antennas included in any given antenna group in the positive integer number of antenna groups included in the given antenna port to the given antenna port constitute an analog beamforming vector of the given antenna group. And the analog beamforming vectors corresponding to the positive integer number of antenna groups are arranged diagonally to form an analog beamforming matrix corresponding to the given antenna port. The mapping coefficients of the positive integer number of antenna groups to the given antenna port constitute a digital beamforming vector corresponding to the given antenna port. The beamforming vector corresponding to the given antenna port is obtained by multiplying an analog beamforming matrix corresponding to the given antenna port by a digital beamforming vector. Different antenna ports in one antenna port group are formed by the same antenna group, and different antenna ports in the same antenna port group correspond to different beam forming vectors.

Two antenna port groups are shown in fig. 9: antenna port group #0 and antenna port group # 1. The antenna port group #0 is composed of an antenna group #0, and the antenna port group #1 is composed of an antenna group #1 and an antenna group # 2. Mapping coefficients of a plurality of antennas in the antenna group #0 to the antenna port group #0 constitute an analog beamforming vector #0, and mapping coefficients of the antenna group #0 to the antenna port group #0 constitute a digital beamforming vector # 0. Mapping coefficients of the plurality of antennas in the antenna group #1 and the plurality of antennas in the antenna group #2 to the antenna port group #1 constitute an analog beamforming vector #1 and an analog beamforming vector #2, respectively, and mapping coefficients of the antenna group #1 and the antenna group #2 to the antenna port group #1 constitute a digital beamforming vector # 1. A beamforming vector corresponding to any antenna port in the antenna port group #0 is obtained by a product of the analog beamforming vector #0 and the digital beamforming vector # 0. A beamforming vector corresponding to any antenna port in the antenna port group #1 is obtained by multiplying an analog beamforming matrix formed by diagonal arrangement of the analog beamforming vector #1 and the analog beamforming vector #2 by the digital beamforming vector # 1.

As a sub-embodiment, one antenna port group includes one antenna port. For example, the antenna port group #0 in fig. 9 includes one antenna port.

As an auxiliary embodiment of the foregoing embodiment, the analog beamforming matrix corresponding to the one antenna port is reduced to an analog beamforming vector, the digital beamforming vector corresponding to the one antenna port is reduced to a scalar, and the beamforming vector corresponding to the one antenna port is equal to the analog beamforming vector corresponding to the one antenna port.

As a sub-embodiment, one antenna port group includes a plurality of antenna ports.

As an additional embodiment of the above embodiment, the plurality of antenna ports correspond to the same analog beamforming matrix and different digital beamforming vectors.

As a sub-embodiment, the antenna ports in different antenna port groups correspond to different analog beamforming matrices.

Example 10

Embodiment 10 illustrates a block diagram of a processing apparatus used in a user equipment, as shown in fig. 10. In fig. 10, the UE processing apparatus 1000 is mainly composed of a first receiver module 1001, a second transmitter module 1002 and a third receiver module 1003.

The first receiver module 1001 receives a first set of reference signals.

The second transmitter module 1002 transmits the first wireless signal.

The third receiver module 1003 monitors the second wireless signal for the first time window.

In embodiment 10, the first reference signal group is one reference signal group in the first reference signal set; a first condition is used to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made on the first set of reference signals is worse than a target threshold; a transmission time point of the first wireless signal is used for determining the first time window; the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information to which a second set of spatial reception parameters used to monitor the second wireless signal is associated.

As a sub-embodiment, the third receiver module 1003 receives a third wireless signal, and the third set of spatial receive parameters used to receive the third wireless signal is associated with the first set of spatial receive parameters used to receive the first set of reference signals.

As a sub-embodiment, the first receiver module 1001 receives a second set of reference signals; wherein a second reference signal group is one of the second reference signal set, a second condition is used for selecting the second reference signal group from the second reference signal set, the second condition is that a second radio link quality measured based on the second reference signal group is not worse than a third threshold, and the first information is used for indicating the second reference signal group.

As a sub-embodiment, the first receiver module 1001 receives second information; wherein the second information is used to indicate the first threshold and the second threshold.

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 second 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 third receiver module 1001 includes at least two of the receiver 456, the receive processor 452, and the controller/processor 490 of embodiment 4.

Example 11

Embodiment 11 illustrates a block diagram of a processing apparatus used in a base station, as shown in fig. 11. In fig. 11, a base station processing apparatus 1100 is mainly composed of a first transmitter module 1101, a second receiver module 1102 and a third transmitter module 1103.

The first transmitter module 1101 transmits a first set of reference signals.

The second receiver module 1102 monitors the first wireless signal.

The third transmitter module 1103 transmits the second wireless signal within the first time window.

In embodiment 11, the first reference signal group is one reference signal group in the first reference signal set; a first condition is used to trigger transmission of the first wireless signal, the first condition being that a first wireless link quality estimated based on measurements made on the first set of reference signals is worse than a target threshold; a reception time point of the first wireless signal is used for determining the first time window; the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information, and a second set of spatial transmission parameters used to transmit the second wireless signal is associated with the first information.

As a sub-embodiment, the third transmitter module 1103 transmits a third wireless signal, and a third set of spatial transmit parameters used to transmit the third wireless signal is associated with the first set of spatial transmit parameters used to transmit the first set of reference signals.

As a sub-embodiment, if the first channel is used for transmitting the first wireless signal, the first wireless signal after channel decoding results in a first bit block, and the value of the first bit block is used for determining the first information; if the second channel is used for transmitting the first wireless signal, the first wireless signal is used for determining a first signature sequence, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used for determining the first information.

As a sub-embodiment, the first transmitter module 1101 transmits a second set of reference signals; wherein a second reference signal group is one of the second reference signal set, a second condition is used for selecting the second reference signal group from the second reference signal set, the second condition is that a second radio link quality measured based on the second reference signal group is not worse than a third threshold, and the first information is used for indicating the second reference signal group.

As a sub-embodiment, the first transmitter module 1101 transmits second information; wherein the second information is used to indicate the first threshold and the second threshold.

As a sub-embodiment, the first transmitter module 1101 includes at least the first two of the transmitter 416, the transmit processor 415, 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.

As a sub-embodiment, the third transmitter module 1103 includes at least the first two of the transmitter 416, the transmit processor 415, 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 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:

-receiving second information;

wherein the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information to which a second set of spatial reception parameters used to monitor the second wireless signal is associated; the second information is used to indicate the first threshold value and the second threshold value.

2. The method of claim 1, comprising

3. Method according to claim 1 or 2, characterized in that if the first channel is used for transmitting the first radio signal, a first block of bits is used for generating the first radio signal after being channel coded, the value of the first block of bits being used for indicating the first information; if the second channel is used for transmitting the first wireless signal, a first signature sequence is used for generating the first wireless signal, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used for indicating the first information.

4. The method according to claim 1 or 2, wherein the first channel is a physical control channel and the second channel is a physical random access channel.

5. The method of claim 3, wherein a target measurement value is used to characterize the first radio link quality, the target measurement value differing from the first threshold by an absolute value less than the target measurement value differing from the second threshold.

6. A method according to claim 1 or 2, characterized in that it comprises

-receiving a second set of reference signals;

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

-transmitting the second information;

wherein the target threshold is equal to a first threshold if a first channel is used to transmit the first wireless signal; the target threshold is equal to a second threshold if a second channel is used to transmit the first wireless signal; the first threshold is not equal to the second threshold; the first wireless signal is used to indicate first information with which a second set of spatial transmission parameters used to transmit the second wireless signal is associated; the second information is used to indicate the first threshold value and the second threshold value.

8. The method of claim 7, comprising

9. Method according to claim 7 or 8, characterized in that if the first channel is used for transmitting the first radio signal, the first radio signal after channel decoding results in a first bit block, the value of which is used for determining the first information; if the second channel is used for transmitting the first wireless signal, the first wireless signal is used for determining a first signature sequence, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used for determining the first information.

10. The method according to claim 7 or 8, wherein the first channel is a physical control channel and the second channel is a physical random access channel.

11. The method of claim 9, wherein a target measurement value is used to characterize the first radio link quality, the target measurement value differing from the first threshold by an absolute value less than the target measurement value differing from the second threshold.

12. The method of claim 7 or 8, comprising

-transmitting a second set of reference signals;

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

-a first receiver module receiving second information and a first set of reference signals, a first set of reference signals being one set of reference signals of said first set of reference signals;

14. The user equipment of claim 13,

a third receiver module receives a third wireless signal, a third set of spatial receive parameters used to receive the third wireless signal being associated with the first set of spatial receive parameters used to receive the first set of reference signals.

15. The user equipment according to claim 13 or 14,

if the first channel is used for transmitting the first wireless signal, a first bit block generates the first wireless signal after being subjected to channel coding, and the value of the first bit block is used for indicating the first information; if the second channel is used for transmitting the first wireless signal, a first signature sequence is used for generating the first wireless signal, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used for indicating the first information.

16. The user equipment according to claim 13 or 14,

the first channel is a physical control channel and the second channel is a physical random access channel.

17. The user equipment of claim 15,

a target measurement value is used to characterize the first wireless link quality, the target measurement value differing from the first threshold by an absolute value less than the target measurement value differing from the second threshold by an absolute value.

18. The user equipment according to claim 13 or 14,

the first receiver module receiving a second set of reference signals;

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

-a first transmitter module to transmit second information and a first set of reference signals, a first set of reference signals being one set of reference signals of the first set of reference signals;

20. The base station apparatus of claim 19,

the third transmitter module transmits a third wireless signal, a third set of spatial transmit parameters used to transmit the third wireless signal being associated with a first set of spatial transmit parameters used to transmit the first set of reference signals.

21. The base station apparatus according to claim 19 or 20,

if the first channel is used for transmitting the first wireless signal, the first wireless signal obtains a first bit block after channel decoding, and the value of the first bit block is used for determining the first information;

if the second channel is used for transmitting the first wireless signal, the first wireless signal is used for determining a first signature sequence, the first signature sequence is one of K candidate signature sequences, and at least one of an index of the first signature sequence in the K candidate signature sequences and an air interface resource occupied by the first wireless signal is used for determining the first information.

22. The base station apparatus according to claim 19 or 20,

23. The base station apparatus of claim 21,

24. The base station apparatus according to claim 19 or 20,

the first transmitter module transmits a second set of reference signals;