CN109586862B

CN109586862B - Method and device in user equipment and base station for wireless communication

Info

Publication number: CN109586862B
Application number: CN201710897961.0A
Authority: CN
Inventors: 陈晋辉
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2017-09-28
Filing date: 2017-09-28
Publication date: 2021-03-26
Anticipated expiration: 2037-09-28
Also published as: CN109586862A

Abstract

The application discloses a method and a device in user equipment and a base station for wireless communication. The method comprises the steps that user equipment receives a first control signal in sequence, receives L reference signal groups and updates parameters in a target spatial parameter group based on measurement of the L reference signal groups, wherein the first control signal indicates a first index, the first index corresponds to a first spatial parameter group, and the parameters in the first spatial parameter group are used for receiving the L reference signal groups; the first index is associated with a target index, and the target spatial parameter set is a spatial parameter set corresponding to the target index. The method and the device have the advantages that the solution for rapidly updating the beam associated with the beam indication is provided, and meanwhile, the robustness and flexibility of beam updating and beam refining are considered.

Description

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

Technical Field

The present application relates to a transmission scheme of wireless signals in a wireless communication system, and more particularly, to a method and apparatus for multi-antenna transmission.

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. The base station and the user equipment can realize narrower beams with lower radio frequency link cost by performing analog beam forming at a radio frequency end.

In the 3rd generation partner Project (3 GPP) new air interface discussion, there is a company proposing that a beam indication can be used to indicate a transmit or receive beam used by a base station in transmission, or that the base station indicates to a user equipment a receive or transmit beam to use. In order to save signaling overhead, states indicated by different beams may correspond to different transmission beams or reception beams, and the base station and the user equipment share a mapping table reflecting a correspondence relationship between the states indicated by the beams and the beams.

Disclosure of Invention

The inventor finds out through research that: the beam indication used for the PDSCH (Physical Downlink Shared Channel) may also be used in a trigger message of the aperiodic CSI-RS (Channel State Information Reference Signal) to instruct the user equipment which beam to repeatedly receive the aperiodic CSI-RS, or to instruct the base station which beam to repeatedly transmit the aperiodic CSI-RS; thereafter, the beam indication status and beam correspondence may be updated using aperiodic CSI-RS based measurements without confirmation by the base station with other explicit signaling. If the beam indication state of the receiving beam or the transmitting beam used for indicating the triggered aperiodic CSI-RS in the triggering message of the aperiodic CSI-RS is the updated beam indication state based on the measurement of the CSI-RS, it may cause that the beam that was used for transmitting or receiving the aperiodic CSI-RS cannot be retained in the mapping table reflecting the correspondence between the beam indication state and the beam, or may cause a large time overhead or delay to be used for the base station to explicitly indicate the correspondence between one beam indication state and the beam that was used for transmitting or receiving the aperiodic CSI-RS so as to update the mapping table reflecting the correspondence between the beam indication state and the beam.

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 invention discloses a method in user equipment for wireless communication, which comprises the following steps

-receiving a first control signal relating to the reception of L reference signal groups, the first control signal indicating a first index corresponding to a first spatial parameter group;

-receiving the L reference signal groups, parameters of the first set of spatial parameters being used for receiving the L reference signal groups;

-updating parameters in a target set of spatial parameters based on measurements of the L sets of reference signals;

wherein L is a positive integer greater than 1; the first index is one of Q indices, the Q indices being a subset of the K indices; k is a positive integer not less than 2, and Q is a positive integer less than K; the K indexes correspond to K spatial parameter sets one by one; the first spatial parameter set is a spatial parameter set corresponding to the first index of the K spatial parameter sets; the target spatial parameter set is a spatial parameter set corresponding to a target index in the K spatial parameter sets; the target index is associated to the Q indices, at least one of the Q indices being different from the target index.

As an embodiment, the above method has a benefit in that the correspondence between the beam indication state and the beam related to the aperiodic CSI-RS is quickly updated without having the base station explicitly indicate the correspondence between one beam indication state and the beam used for transmitting or receiving the aperiodic CSI-RS, as well as retaining the beam used for transmitting or receiving the aperiodic CSI-RS.

As an embodiment, a physical layer control channel is used for transmitting the first control signal.

For one embodiment, the first Control signal is dci (downlink Control information).

As one embodiment, the first control signal is dynamic signaling.

As an embodiment, the first control signal triggers the reception of the L reference signal groups.

As an embodiment, the first control signal indicates air interface resources occupied by the L reference signal groups.

As an embodiment, the air interface resource includes at least one of { frequency domain resource, time domain resource, code domain resource }.

As an embodiment, the first control signal indicates an index value corresponding to an air interface resource occupied by the L reference signal groups.

As an embodiment, the first control signal indicates air interface resources occupied by the ue for transmitting a first signal, where the first signal is related to measurement based on the L reference signal groups.

As an embodiment, the first control signal indicates an air interface resource occupied by the ue for sending a first signal, where the first signal indicates measured channel state information based on the L reference signal groups.

As an embodiment, a first block of bits is used for generating the first control signal, one bit field in the first block of bits indicating the first index.

As an embodiment, the parameters in the set of spatial parameters are used to form an analog transmit beam or an analog receive beam.

As an embodiment, the parameters in the spatial parameter set are used to form an analog transmit beam or an analog receive beam at the user equipment.

As an embodiment, the parameters in the spatial parameter set are used to form an analog transmit beam or an analog receive beam at the base station device.

As an embodiment, the parameters in the spatial parameter set include both parameters for forming a base station-side analog transmission beam or an analog reception beam and parameters for forming a user equipment-side analog transmission beam or an analog reception beam.

As an embodiment, the user equipment updates a part of the parameters in the target set of spatial parameters.

As an embodiment, one of the sets of spatial parameters includes spatial transmission parameters.

As an embodiment, the spatial transmission parameters include parameters used by the transmitter acting on the phase shifter to control the spatial transmission direction.

For one embodiment, the spatial transmit parameters include spacing between transmit antenna elements in an active state.

As one embodiment, the spatial transmit parameter includes a number of transmit antenna elements in an active state.

As an embodiment, the spatial transmission parameters include a selection of a transmit antenna array.

As an embodiment, one of the sets of spatial parameters comprises spatial reception parameters.

For one embodiment, the spatial reception parameters include parameters used by the receiver to act on phase shifters to control the spatial reception direction.

For one embodiment, the spatial receive parameter includes a spacing between receive antenna elements in an active state.

For one embodiment, the spatial receive parameter includes a number of receive antenna elements in an active state.

As an embodiment, the spatial reception parameter comprises a selection of a reception antenna array.

As an embodiment, one of the sets of spatial parameters includes both spatial transmission parameters and spatial reception parameters.

As an embodiment, the parameters in one of the sets of spatial parameters are analog beam parameters used to form a set of reference signals for transmission or reception. The identification of the reference signal group is used to determine the parameters in its corresponding set of spatial parameters, i.e. one set of spatial parameters is associated to the reference signal group.

As an embodiment, the second spatial parameter set is one spatial parameter set of the K spatial parameter sets, the second spatial parameter set corresponding to a second index of the K indexes, the second spatial parameter set including an identification of a second reference signal group; the second index is contained in target signaling related to receiving a target signal; the second index indicates that the analog receive beam used to receive the second set of reference signals is used to receive the target signal; the second set of reference signals is transmitted before the target signal.

As an embodiment, the second spatial parameter set is one spatial parameter set of the K spatial parameter sets, the second spatial parameter set corresponding to a second index of the K indexes, the second spatial parameter set including an index of a second reference signal group; the second index is contained in target signaling related to receiving a target signal; the second index indicates that the analog transmit beam used to transmit the second set of reference signals is used to transmit the target signal; the second set of reference signals is transmitted before the target signal.

As an embodiment, the second spatial parameter set is one spatial parameter set of the K spatial parameter sets, the second spatial parameter set corresponding to a second index of the K indexes, the second spatial parameter set including an index of a second reference signal group; the second index is contained in target signaling related to receiving a target signal; the second index indicates that the target signal is spatially QCL (Quasi Co-located, class Co-sited) with the second reference signal set; the second set of reference signals is transmitted before the target signal.

For one embodiment, spatially QCL for two wireless signals means that at least one of { average delay, delay spread, doppler shift, doppler spread, spatial receive parameters, spatial transmit parameters } of the channels experienced by the two wireless signals is approximate or identical.

As one embodiment, only non-periodic reference signals are included in the L reference signal groups.

As an embodiment, the L reference signal groups include only CSI-RSs.

As an embodiment, the L reference signal groups include only aperiodic CSI-RSs.

As an embodiment, parameters of the first set of spatial parameters are used to generate analog receive beams for receiving the L groups of reference signals.

As one embodiment, the first set of spatial parameters includes spatial receive parameters used to generate analog receive beams for receiving the L sets of reference signals.

As an embodiment, the first set of spatial parameters is associated to a first set of reference signals.

As an embodiment, the first set of spatial parameters comprises an identification of the first set of reference signals.

As an embodiment, the reference signals belonging to one of the L reference signal groups are in the same CSI-RS Resource, that is, correspond to the same CRI (CSI-RS Resource Index, channel state information reference signal Resource Index); the reference signals respectively belonging to two of the L reference signal groups are in different CSI-RS resources, i.e. correspond to different CRIs.

As an embodiment, the reference signals belonging to one of the L reference signal groups are in the same time resource, i.e. correspond to the same time index; the reference signals respectively belonging to two of the L reference signal groups are in different time resources, i.e. correspond to different time indices.

As one embodiment, the first reference signal group is transmitted before the L reference signal groups.

As an embodiment, the first control signal instructs the user equipment to receive the L reference signal groups using analog receive beams for receiving the first reference signal group, the same analog receive beams being used for receiving the L reference signal groups.

As an embodiment, the first control signal indicates that an analog transmission beam used to transmit the first reference signal group is used to transmit the L reference signal groups, and the same analog transmission beam is used to transmit the L reference signal groups.

As an embodiment, the first control signal indicates whether the same analog receive beam is used for receiving the L reference signal groups or the same analog transmit beam is used for transmitting the L reference signal groups.

As an embodiment, the same analog transmit beam is used for transmitting the L reference signal groups, the user equipment receiving the L reference signal groups using L different analog receive beams whose directions are related to the directions of the analog receive beams used for receiving the first reference signal group.

As an embodiment, the analog transmission beam refers to a transmission beam formed by analog beamforming on a radio frequency signal.

As an embodiment, the analog transmit beam refers to a receive beam formed by analog beamforming of a radio frequency signal.

As one embodiment, the target reference signal group is one reference signal group of the L reference signal groups.

As one embodiment, the spatial receive parameters used to generate the analog receive beams that receive the target set of reference signals are used to replace parameters in the target set of spatial parameters.

As an embodiment, the identification of the target set of reference signals is used instead of the identification of the set of reference signals comprised in the target set of spatial parameters.

As an embodiment, the ue performs channel measurement on the L reference signal groups to obtain L corresponding channel quality values, respectively, and the channel quality value obtained by performing channel measurement on the target reference signal group is the largest channel quality value among the L channel quality values.

As an embodiment, the channel Quality value refers to one of { RSRP (Reference Signal Received Power ) }, RSRQ (Reference Signal Received Quality, Reference Signal Received Quality), SNR (Signal-to-Noise Ratio), SINR (Signal-to-Interference-plus-Noise Ratio).

As an embodiment, the first index is any one of the Q indices.

As an embodiment, Q is 1, i.e. the first index and the target index are different, and the first candidate set is the first index.

For one embodiment, Q is greater than 1, and the Q indices comprise the target index.

As a sub-embodiment of the above embodiment, the first index is the target index.

As one embodiment, Q is greater than 1, and Q indices do not include the target index.

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

-transmitting a first signal;

wherein the first signal relates to measurements based on the set of L reference signals; the user equipment updates parameters in the target set of spatial parameters at a first point in time after transmitting the first signal.

As an embodiment, the above method has a benefit that the user equipment and the serving base station update the mapping table at the same time point for the target spatial parameter set.

As an embodiment, the first signal indicates channel state information obtained by performing channel measurement based on L reference signal groups.

As an embodiment, the Channel state information includes at least one of { PMI (Precoding Matrix Index), CQI (Channel Quality Index), RI (Rank Index) }.

As an embodiment, the first signal indicates beam information obtained by performing channel measurement based on the L reference signal groups.

As an embodiment, the beam information includes at least one of { CRI, RSRP, time index }.

As an embodiment, a physical layer control channel is used to transmit the first signal.

As one embodiment, a physical layer shared channel is used to transmit the first signal.

As an embodiment, the first signal is a UCI (Uplink Control Information).

As one embodiment, the first signal indicates a channel quality value obtained by channel measurement for the target set of reference signals.

As one embodiment, the first signal indicates an identity of the target set of reference signals.

For one embodiment, the first signal indicates a time offset between the first point in time and a time resource occupied by the first signal.

As an embodiment, a time offset between the first point in time and a time resource occupied by the first signal is pre-configured.

As an embodiment, a time offset between the first point in time and a time resource occupied by the first signal is configured by default.

In particular, according to one aspect of the invention, it is characterized in that said first signal indicates an update of a parameter in said target set of spatial parameters.

As an embodiment, the above method has a benefit that the base station updates the target spatial parameter set according to the indication of the user equipment.

As an embodiment, the first signal indicates an identity of the target set of reference signals, which the serving base station uses instead of an identity of a set of reference signals originally comprised in the target set of spatial parameters.

As an embodiment, the first signal indicates an identity of the target set of reference signals, and the serving base station replaces original spatial transmission parameters in the target set of spatial parameters with the spatial transmission parameters used to transmit the target set of reference signals.

As an embodiment, the first signal indicates that the ue is to update parameters in the target spatial parameter set, and the serving base station is to update time domain identifiers of original reference signal sets included in the target spatial parameter set by using time domain identifiers corresponding to the L reference signal sets.

-receiving a second control signal, the second control signal relating to reception of a second signal, the second control signal indicating the target index;

-manipulating the second signal, parameters of the target set of spatial parameters being used for manipulating the second signal, the manipulation being either receiving or transmitting.

As an embodiment, a physical layer control channel is used for transmitting the second control signal.

As an embodiment, the second control signal is a DCI.

As an embodiment, the second control signal is related to a physical layer shared channel.

As an embodiment, the second control signal is related to a downlink physical layer shared channel.

As an embodiment, the second control signal indicates an air interface resource occupied by the second signal.

As one embodiment, the second control signal indicates an MCS (Modulation Coding Scheme) used for the second signal.

As an embodiment, the operation is receiving and the second signal is transmitted on a downlink physical layer shared channel.

As an embodiment, the uplink channel is associated with a downlink channel, the operation is sending, and the second signal is transmitted on an uplink physical layer shared channel.

As an embodiment, the association of the uplink channel and the downlink channel means that there is a mutual difference between the uplink channel and the downlink channel.

As an embodiment, the association between the uplink channel and the downlink channel means that the ue transmits a signal on the uplink channel using a ue-side spatial transmission parameter corresponding to a ue-side spatial reception parameter used on the downlink channel.

As one embodiment, the operation is reception, and parameters in the target set of spatial parameters are used to generate analog receive beams for receiving the second signal.

As an embodiment, the operation is reception, the target set of spatial parameters is associated with the target set of reference signals, and the analog receive beams used to receive the target set of reference signals are used to receive the second signal.

As an embodiment, the operation is reception, the target set of spatial parameters comprises an identification of the target set of reference signals, and the analog receive beams used for receiving the target set of reference signals are used for receiving the second signal.

As one embodiment, the operation is transmission, and parameters in the target set of spatial parameters are used to generate an analog transmit beam for transmitting the second signal.

As an embodiment, the operation is transmission, the target set of spatial parameters is associated with the target set of reference signals, and spatial transmission parameters corresponding to spatial reception parameters used for generating analog reception beams for receiving the target set of reference signals are used for generating analog transmission beams for transmitting the second signal.

As an embodiment, the operation is a transmission, the target set of spatial parameters comprises an identification of the target set of reference signals, spatial transmission parameters corresponding to spatial reception parameters used for generating analog reception beams for receiving the target set of reference signals are used for generating analog transmission beams for transmitting the second signal.

As an embodiment, the operation is receiving and the second signal is a downlink reference signal.

As one embodiment, the operation is receiving and the second signal is CSI-RS.

As one embodiment, the operation is receiving and the second Signal is a DMRS (Demodulation Reference Signal).

As an embodiment, the operation is receiving and the second signal includes downlink data.

As one embodiment, the operation is receiving and the second signal includes higher layer signaling.

As an embodiment, the operation is transmitting and the second signal is an uplink reference signal.

As one embodiment, the operation is transmitting and the second Signal is a DMRS (Demodulation Reference Signal).

As one embodiment, the operation is transmitting, and the second Signal is SRS (Sounding Reference Signal).

As an embodiment, the operation is transmitting and the second signal includes uplink data.

As one embodiment, the operation is transmitting and the second signal includes higher layer signaling.

In particular, according to one aspect of the invention, the second signal includes data.

As an embodiment, a physical layer shared channel is used for transmitting the second signal.

As an embodiment, only data is included in the second signal.

As an embodiment, the second signal includes not only data but also DMRSs used for measuring channels, and the same antenna port is used for transmitting the data and the corresponding DMRSs.

Specifically, according to an aspect of the present invention, the first control signal indicates air interface resources occupied by the L reference signal groups, and the first control signal is a physical layer control signaling.

As an embodiment, the above method has a benefit that a dynamic trigger is used to update the reference signal set of the spatial parameter set, thereby increasing the flexibility of system scheduling.

For one embodiment, the first control signal indicates time domain resources occupied by the L reference signal groups.

As one embodiment, the first control signal indicates frequency domain resources occupied by the L reference signal groups.

As an embodiment, the first control signal indicates the time-frequency resources occupied by the L reference signal groups from among P candidate time-frequency resources, where P is a positive integer greater than 1.

As one embodiment, the first control signal indicates RBs (Resource blocks) occupied by the L reference signal groups in a time-frequency domain.

As an embodiment, one RB is composed of multiple REs (Resource elements, Resource granules), and one RE is used to carry one symbol after constellation modulation.

-receiving L2 sets of reference signals, the L2 being a positive integer greater than 1;

-transmitting a third signal relating to measurements based on the set of L2 reference signals;

-receiving a third control signal, the third control signal being used for updating parameters in the first set of spatial parameters;

wherein the first reference signal group is one of the L2 reference signal groups; the third control signal indicates the first index and an index of the first reference signal group; the first index is different from the target index.

As an embodiment, the above method has the advantage that some updates of the spatial parameter set can only be indicated by the base station, thereby ensuring the robustness of the system and increasing the flexibility of system scheduling.

As an embodiment, the reference signals in the L2 reference signal groups are CSI-RSs.

As an embodiment, the reference signals in the L2 reference signal groups are periodic CSI-RSs.

As one embodiment, the reference signals in the L2 reference signal groups are semi-periodic CSI-RSs.

For one embodiment, the reference signals in the L2 reference signal groups may also be used for synchronization.

As an example, the reference signals in the L2 sets of reference signals are SS (Synchronization Signal).

As an embodiment, physical layer control signaling is not used to trigger the transmission of the L2 reference signal groups.

As an embodiment, RRC (Radio Resource Control) signaling is used to indicate the time-frequency resources occupied by the L2 reference signal groups.

As an embodiment, a MAC (Medium Access Control) CE (Control Element) layer is used to activate reception of the L2 reference signal groups.

As an embodiment, the third signal indicates channel state information obtained by performing channel measurement based on L2 reference signal groups.

As an embodiment, the third signal indicates beam information obtained by performing channel measurement based on the L2 reference signal groups.

As an embodiment, a physical layer control channel is used for transmitting the third signal.

As an embodiment, a physical layer shared channel is used for transmitting the third signal.

As an example, the third signal is a UCI.

As an embodiment, the third signal indicates a channel quality value measured for the first set of reference signals.

As one embodiment, the third signal indicates an identity of the first reference signal group.

As an embodiment, the reference signals belonging to one of the L2 reference signal groups are in the same CSI-RS Resource, that is, correspond to the same CRI (CSI-RS Resource Index); the reference signals respectively belonging to two reference signal groups of the L2 reference signal groups are in different CSI-RS resources, i.e. correspond to different CRIs.

As an embodiment, the reference signals belonging to one of the L2 reference signal groups are in the same time resource, that is, correspond to the same time index; the reference signals respectively belonging to two of the L2 reference signal groups are in different time resources, i.e. correspond to different time indices.

As one embodiment, the first reference signal group is one of the L2 reference signal groups.

As an embodiment, spatial receive parameters used to generate the analog receive beams receiving the first set of reference signals are used to replace parameters in the first set of spatial parameters.

As an embodiment, the identification of the first set of reference signals is used instead of the identification of the set of reference signals comprised in the first set of spatial parameters.

As an embodiment, the ue performs channel measurement on the L2 reference signal groups to obtain L2 channel quality values respectively.

As an embodiment, the channel quality value obtained by performing channel measurement on the first reference signal group is the largest channel quality value among the L2 channel quality values.

As an embodiment, the channel quality value obtained by performing channel measurement on the first reference signal group is one of P2 channel quality values, the P2 channel quality values are the largest P2 channel quality values among the L2 channel quality values, and the P2 is less than the L2 positive integers.

As one embodiment, the P2 is preconfigured.

As one example, the P2 is determined by default.

As one embodiment, the P2 channel quality values are P2 of the L2 channel quality values that are greater than a target threshold.

As an embodiment, the target threshold is preconfigured.

As an embodiment, the target threshold is determined by default.

For one embodiment, the third signal indicates the P2 channel quality values.

As an embodiment, the third signal indicates identities of P2 reference signal groups respectively corresponding to the P2 channel quality values.

As one embodiment, the first reference signal group is one of the P2 reference signal groups.

As one embodiment, the index values of the first reference signal group in the P2 reference signal groups are used for identification of the first reference signal group.

As an embodiment, a physical layer shared channel is used for transmitting the third control signal.

As an embodiment, the third control signal is a higher layer signaling.

As an embodiment, the third control signal is an RRC signaling.

As an embodiment, the third control signal is an RRC signaling, and an IE (Information Element) in the third control signal indicates the first index and an index of a first reference signal group of the L2 reference signal groups.

As an embodiment, the third control signal is a MAC layer signaling.

As an embodiment, one MAC layer CE is used to indicate the first index and the index of the first reference signal group of the L2 reference signal groups.

The invention discloses a method in a base station device for wireless communication, which comprises

-transmitting a first control signal related to the transmission of the L reference signal groups, the first control signal indicating a first index, the first index corresponding to a first spatial parameter group;

-transmitting the L reference signal groups, parameters of the first set of spatial parameters being used for transmitting the L reference signal groups;

wherein L is a positive integer greater than 1; the base station device assuming that the recipients of the L reference signal groups update parameters in a target set of spatial parameters based on measurements of the L reference signal groups; the first index is one of Q indices, the Q indices being a subset of the K indices; k is a positive integer not less than 2, and Q is a positive integer less than K; the K indexes correspond to K spatial parameter sets one by one; the first spatial parameter set is a spatial parameter set corresponding to the first index of the K spatial parameter sets; the target spatial parameter set is a spatial parameter set corresponding to a target index in the K spatial parameter sets; the target index is associated to the Q indices, at least one of the Q indices being different from the target index.

As an embodiment, the receiver of the L reference signal groups is a user equipment served by the base station.

As an embodiment, the receivers of the L reference signal groups are a plurality of user equipments served by the base station.

In particular, according to one aspect of the application, it is characterized in that it comprises

-receiving a first signal;

wherein the first signal relates to measurements based on the set of L reference signals; the base station device assumes that the recipients of the L reference signal groups update the parameters in the target set of spatial parameters at a first point in time after transmitting the first signal.

As an embodiment, the base station apparatus updates parameters in the target set of spatial parameters at the first time point.

As one embodiment, the base station device replaces the base station-side spatial transmission parameters that were previously included in the target set of spatial parameters with the spatial transmission parameters used to generate the analog transmission beams that transmit the target set of reference signals.

As an embodiment, the base station device replaces the identification of the set of reference signals previously included in the set of target spatial parameters with the identification of the set of target reference signals.

As an embodiment, the base station device replaces the time resource identifiers originally included in the target spatial parameter set with the time resource identifiers of the L reference signal groups.

-updating parameters in the target set of spatial parameters;

wherein the first signal indicates an update to a parameter in the target set of spatial parameters.

As an embodiment, the base station apparatus updates parameters in the target spatial parameter set according to an indication of the first signal.

As one embodiment, the first signal indicates an identification of a target reference signal group of the L reference signal groups.

As an embodiment, the base station device replaces the identification of the reference signal group originally included in the target spatial parameter set with the identification of the target reference signal group.

As one embodiment, the base station apparatus updates the base station-side spatial transmission parameters originally included in the target set of spatial parameters using the base station-side spatial transmission parameters used to generate the analog transmission beams transmitting the target set of reference signals.

As an embodiment, the base station apparatus updates a part of the parameters in the target spatial parameter set.

-transmitting a second control signal, the second control signal relating to transmission of a second signal, the second control signal indicating the target index;

-executing the second signal, parameters of the target set of spatial parameters being used for executing the second signal, the executing being either transmitting or receiving.

As an embodiment, the performing is transmitting, and parameters in the set of target spatial parameters are used to generate an analog transmit beam for transmitting the second signal.

As an embodiment, the performing is receiving, and parameters in the set of target spatial parameters are used to generate analog receive beams for receiving the second signal.

In particular, according to an aspect of the present application, it is characterized in that the second signal includes data therein.

Specifically, according to an aspect of the present application, the first control signal indicates air interface resources occupied by the L reference signal groups, and the first control signal is a physical layer control signaling.

-transmitting L2 sets of reference signals, said L2 being a positive integer greater than 1;

-receiving a third signal relating to measurements based on the set of L2 reference signals;

-transmitting a third control signal, the third control signal being used for updating parameters in the first set of spatial parameters;

As an embodiment, a user equipment served by the base station of the third control signal updates parameters in the first set of spatial parameters.

The application discloses a user equipment for wireless communication, which comprises the following modules:

-a first receiver module receiving a first control signal relating to reception of the L reference signal groups, the first control signal indicating a first index corresponding to a first set of spatial parameters;

-a first transceiver module receiving the L reference signal groups, parameters of the first set of spatial parameters being used for receiving the L reference signal groups;

-a first processor module for updating parameters in a target set of spatial parameters based on measurements of the L sets of reference signals;

As an embodiment, the above user equipment is characterized in that the first transceiver module transmits a first signal; wherein the first signal relates to measurements based on the set of L reference signals; the user equipment updates parameters in the target set of spatial parameters at a first point in time after transmitting the first signal.

As an embodiment, the user equipment as described above is characterized in that the first signal indicates updating of parameters in the target set of spatial parameters.

As an embodiment, the above user equipment is characterized in that the first receiver module receives a second control signal, the second control signal being related to reception of a second signal, the second control signal indicating the target index; the first transceiver module operates on the second signal, a parameter of the target set of spatial parameters is used to operate on the second signal, the operation is either receiving or transmitting.

As an embodiment, the above user equipment is characterized in that the second signal includes data.

As an embodiment, the ue is characterized in that the first control signal indicates air interface resources occupied by the L reference signal groups, and the first control signal is a physical layer control signaling.

As an embodiment, the above user equipment is characterized in that the first transceiver module receives L2 sets of reference signals, the L2 is a positive integer greater than 1; the first transceiver module transmitting a third signal relating to measurements based on the set of L2 reference signals; the first receiver module receiving a third control signal, the third control signal being used to update parameters in the first set of spatial parameters; wherein the first reference signal group is one of the L2 reference signal groups; the third control signal indicates the first index and an index of the first reference signal group; the first index is different from the target index.

The application discloses a base station device for wireless communication, which comprises the following modules

-a first transmitter module to transmit a first control signal related to the transmission of the L reference signal groups, the first control signal indicating a first index, the first index corresponding to a first spatial parameter group;

-a second transceiver module for transmitting the L reference signal groups, parameters of the first set of spatial parameters being used for transmitting the L reference signal groups;

As an embodiment, the base station apparatus above is characterized in that the second transceiver module receives a first signal; wherein the first signal relates to measurements based on the set of L reference signals; the base station device assumes that the recipients of the L reference signal groups update the parameters in the target set of spatial parameters at a first point in time after transmitting the first signal.

As an embodiment, the base station device is characterized in that the second transceiver module updates parameters in the target spatial parameter set; wherein the first signal indicates an update to a parameter in the target set of spatial parameters.

As an embodiment, the base station device is characterized in that the first transmitter module transmits a second control signal, the second control signal being related to transmission of a second signal, the second control signal indicating the target index; the second transceiver module executes the second signal, the parameters in the target set of spatial parameters being used to execute the second signal, the executing being either transmitting or receiving.

As an embodiment, the base station apparatus is characterized in that the second signal includes data.

As an embodiment, the base station device is characterized in that the first control signal indicates air interface resources occupied by the L reference signal groups, and the first control signal is a physical layer control signaling.

As an embodiment, the base station device is characterized in that the second transceiver module transmits L2 sets of reference signals, wherein L2 is a positive integer greater than 1; the second transceiver module receiving a third signal relating to measurements based on the set of L2 reference signals; the first transmitter module transmitting a third control signal, the third control signal being used to update parameters in the first set of spatial parameters; wherein the first reference signal group is one of the L2 reference signal groups; the third control signal indicates the first index and an index of the first reference signal group; the first index is different from the target index.

As an embodiment, compared with the prior art, the present application has the following technical advantages: the method has the advantages that the robustness and flexibility of beam updating and beam thinning are considered while the solution of quickly updating the beam associated with the beam indication is provided.

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, made with reference to the accompanying drawings in which:

FIG. 1 shows a flow diagram of a first control signal, L sets of reference signals, and an update target spatial parameter set according to one embodiment of the present 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 a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

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

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

FIG. 6 shows a schematic diagram of target spatial parameter set updating according to an embodiment of the present application;

FIG. 7 is a schematic diagram illustrating an update of a target spatial parameter set according to another embodiment of the present application;

FIG. 8 shows a block diagram of a processing device in a UE according to an embodiment of the present application;

fig. 9 shows a block diagram of a processing device 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 flowchart of a first control signal, L reference signal groups and updating a target spatial parameter set according to the present application, as shown in fig. 1. In fig. 1, each block represents a step. In embodiment 1, the ue in this application sequentially receives a first control signal, receives L reference signal groups, and updates parameters in a target spatial parameter group; wherein the first control signal relates to reception of the L reference signal groups, the first control signal indicating a first index corresponding to a first spatial parameter group; parameters in the first set of spatial parameters are used to receive the L sets of reference signals; updating parameters in a target set of spatial parameters based on the measurements of the L sets of reference signals; l is a positive integer greater than 1; the first index is one of Q indices, the Q indices being a subset of the K indices; k is a positive integer not less than 2, and Q is a positive integer less than K; the K indexes correspond to K spatial parameter sets one by one; the first spatial parameter set is a spatial parameter set corresponding to the first index of the K spatial parameter sets; the target spatial parameter set is a spatial parameter set corresponding to a target index in the K spatial parameter sets; the target index is associated to the Q indices, at least one of the Q indices being different from the target index.

As an embodiment, a PDCCH (Physical Downlink Control Channel) is used to transmit the first Control signal.

As an embodiment, the first control signal is one DCI used to trigger reception of the L reference signal groups.

As an embodiment, a bit field in the first control signal is used to indicate a beam indication state, a value of the bit field corresponding to the first index.

As one embodiment, the L reference signal groups are aperiodic CSI-RS used for beam management.

As an embodiment, parameters in the first set of spatial parameters are used to generate analog receive beams that receive the L sets of reference signals.

As an embodiment, the target reference signal group is one reference signal group of the L reference signal groups, and the spatial receiving parameters of the ue used to generate the target reference signal group are used to replace the spatial receiving parameters of the ue originally included in the target spatial parameter group.

As an embodiment, the target set of reference signals is one of the L sets of reference signals, and the identification of the target set of reference signals is used to replace the identification of the set of reference signals originally included in the target set of spatial parameters.

As an embodiment, the first index is any one of the Q indices.

For one embodiment, the first index and the target index are different.

Example 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 NR 5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The NR 5G 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, EPCs (Evolved Packet cores)/5G-CNs (5G-Core networks) 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 an access point for the UE201 to the EPC/5G-CN 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, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land 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 connects to the EPC/5G-CN210 through the S1/NG interface. The EPC/5G-CN210 includes an MME/AMF/UPF211, other MMEs/AMF/UPF 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 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 an embodiment, the UE201 corresponds to a user equipment in the present application.

As an embodiment, the gNB203 corresponds to a base station in the present application.

As an embodiment, the UE201 supports multi-antenna transmission.

As an embodiment, the UE201 supports analog beamforming.

As an embodiment, the gNB203 supports multiple antenna transmission.

For one embodiment, the gNB203 supports analog beamforming.

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 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. 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 an example, the radio protocol architecture in fig. 3 is applicable to the user equipment in the present application.

As an example, the radio protocol architecture in fig. 3 is applicable to the base station apparatus in the present application.

As an embodiment, the first control signal in the present application is generated in the PHY 301.

As an example, the L reference signal groups in the present application are generated in the PHY 301.

As an example, the first signal in this application is generated in the PHY 301.

As an embodiment, the second control signal in this application is generated in the PHY 301.

As an example, the second signal in this application is generated in the PHY 301.

As an example, the L2 reference signal groups in the present application are generated in the PHY 301.

As an example, the third signal in this application is generated in the PHY 301.

As an embodiment, the third control signal in this application is generated in the MAC sublayer 302.

Example 4

Embodiment 4 shows a schematic diagram of a base station device and a given 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.

Controller/processor 440, scheduler 443, memory 430, receive processor 412, transmit processor 415, MIMO transmit processor 441, MIMO detector 442, transmitter/receiver 416 and antennas 420 may be included in base station apparatus (410).

Controller/processor 490, memory 480, data source 467, transmit processor 455, receive processor 452, MIMO transmit processor 471, MIMO detector 472, transmitter/receiver 456, and antenna 460 may be included in a user equipment (UE 450).

In the downlink transmission, the processing related to the base station apparatus (410) may include:

upper layer packets arrive at controller/processor 440, controller/processor 440 provides packet header compression, encryption, packet segmentation concatenation and reordering, and demultiplexing of the multiplex between logical and transport channels to implement the L2 layer protocol for the user plane and control plane; the upper layer packet may include data or control information, such as DL-SCH (Downlink Shared Channel);

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

controller/processor 440 informs scheduler 443 of the transmission requirement, scheduler 443 is configured to schedule the empty resource corresponding to the transmission requirement, and informs controller/processor 440 of the scheduling result;

controller/processor 440 passes control information for downlink transmission to transmit processor 415 resulting from processing of uplink reception by receive processor 412;

a transmit processor 415 receives the output bit stream of the controller/processor 440, implements 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.;

MIMO transmit processor 441 performs spatial processing (e.g., multi-antenna precoding, digital beamforming) on the data symbols, control symbols, or reference signal symbols and outputs a baseband signal to transmitter 416;

MIMO transmit processor 441 outputs analog transmit beamforming vectors to transmitter 416;

a transmitter 416 for converting the baseband signals provided by MIMO transmit processor 441 into radio frequency signals and transmitting them via 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; analog transmit beamforming is processed in transmitter 416.

In the downlink transmission, the processing related to the user equipment (UE450) may include:

receiver 456 is configured to convert radio frequency signals received via antenna 460 into baseband signals for provision to MIMO detector 472; analog receive beamforming is processed in the receiver 456;

a MIMO detector 472 for MIMO detection of the signals received from receiver 456, providing a MIMO detected baseband signal to receive processor 452;

the receive processor 452 extracts analog receive beamforming related parameters to output to the MIMO detector 472, and the MIMO detector 472 outputs analog receive beamforming vectors to the receiver 456;

receive processor 452 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.;

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

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

controller/processor 490 passes control information for downlink reception resulting from the processing of uplink transmissions by transmit processor 455 to receive processor 452.

The first control signal in this application is generated by the transmit processor 415. A MIMO transmit processor 441 performs multi-antenna precoding on the baseband signals associated with the first control signals output by the transmit processor 415. The transmitter 416 converts the baseband signals provided from the MIMO transmit processor 441 to rf signals, performs analog transmit beamforming, and transmits the rf signals via the antenna 420. Receiver 456 performs analog receive beamforming on the received signal via antenna 460 to obtain a radio frequency signal associated with the first control signal, which is converted to a baseband signal and provided to MIMO detector 472. MIMO detector 472 performs MIMO detection on the signal received from receiver 456. The receiving processor 452 processes the baseband signal output by the MIMO detector 472 to obtain the first control signal.

The L sets of reference signals in this application are generated by a transmit processor 415. The MIMO transmit processor 441 performs multi-antenna precoding on the baseband signals associated with the L reference signal groups output from the transmit processor 415. The transmitter 416 converts the baseband signals provided from the MIMO transmit processor 441 to rf signals, performs analog transmit beamforming, and transmits the rf signals via the antenna 420. Receiver 456 will receive through antenna 460, perform analog receive beamforming, obtain rf signals associated with the L sets of reference signals, and convert to baseband signals for MIMO detector 472. MIMO detector 472 performs MIMO detection on the signal received from receiver 456. A receive processor 452 performs channel measurement on the baseband signal output by the MIMO detector 472.

The second control signal in this application is generated by the transmit processor 415. A MIMO transmit processor 441 performs multi-antenna precoding on the baseband signals associated with the second control signals output by the transmit processor 415. The transmitter 416 converts the baseband signals provided from the MIMO transmit processor 441 to rf signals, performs analog transmit beamforming, and transmits the rf signals via the antenna 420. Receiver 456 performs analog receive beamforming on the received signal via antenna 460 to obtain a radio frequency signal associated with the second control signal, which is converted to a baseband signal and provided to MIMO detector 472. MIMO detector 472 performs MIMO detection on the signal received from receiver 456. The receiving processor 452 processes the baseband signal output by the MIMO detector 472 to obtain the second control signal.

As an example, the operation is receiving, and the second signal in this application is generated by the upper layer packet to the controller/processor 440. A MIMO transmit processor 441 performs multi-antenna precoding on the second signal-related baseband signals output by the transmit processor 415. The transmitter 416 converts the baseband signals provided from the MIMO transmit processor 441 to rf signals, performs analog transmit beamforming, and transmits the rf signals via the antenna 420. Receiver 456 performs analog receive beamforming on the received signal via antenna 460 to obtain a radio frequency signal associated with the second signal, which is converted to a baseband signal and provided to MIMO detector 472. MIMO detector 472 performs MIMO detection on the signal received from receiver 456. Receive processor 452 processes the baseband signal output by MIMO detector 472 and outputs a second signal to controller/processor 490.

The L2 sets of reference signals in this application are generated by the transmit processor 415. The MIMO transmit processor 441 performs multi-antenna precoding on the baseband signals associated with the L2 reference signal groups output from the transmit processor 415. The transmitter 416 converts the baseband signals provided from the MIMO transmit processor 441 to rf signals, performs analog transmit beamforming, and transmits the rf signals via the antenna 420. Receiver 456 will receive via antenna 460, perform analog receive beamforming to obtain rf signals associated with the L2 sets of reference signals, and convert them to baseband signals for MIMO detector 472. MIMO detector 472 performs MIMO detection on the signal received from receiver 456. A receive processor 452 performs channel measurement on the baseband signal output by the MIMO detector 472.

For one embodiment, the third control signal is generated by an upper layer packet to controller/processor 440. MIMO transmit processor 441 performs multi-antenna precoding on the baseband signals associated with the third control signal output from transmit processor 415. The transmitter 416 converts the baseband signals provided from the MIMO transmit processor 441 to rf signals, performs analog transmit beamforming, and transmits the rf signals via the antenna 420. Receiver 456 performs analog receive beamforming on the received signal via antenna 460 to obtain a radio frequency signal associated with the third control signal, which is converted to a baseband signal and provided to MIMO detector 472. MIMO detector 472 performs MIMO detection on the signal received from receiver 456. Receive processor 452 processes the baseband signal output by MIMO detector 472 and outputs a third control signal to controller/processor 490.

In uplink transmission, the processing related to the user equipment (UE450) may include:

a data source 467 provides upper layer packets to the controller/processor 490, the controller/processor 490 providing packet header compression, encryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement the L2 layer protocol for the user plane and the control plane; the upper layer packet may include data or control information, such as UL-SCH (Uplink Shared Channel);

controller/processor 490 passes control information for uplink transmission, resulting from processing of downlink reception by receive processor 452, to transmit processor 455;

a transmit processor 455 receives the output bit stream of the controller/processor 490, and 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 PUCCH, SRS (Sounding Reference Signal)) generation, etc.;

a MIMO transmit processor 471 performs spatial processing (e.g., multi-antenna precoding, digital beamforming) on the data symbols, control symbols, or reference signal symbols, and outputs a baseband signal to the transmitter 456;

the MIMO transmit processor 471 outputs the analog transmit beamforming vectors to the transmitter 457;

a transmitter 456 for converting baseband signals provided by MIMO transmit processor 471 into radio frequency signals and transmitting them via antenna 460; each transmitter 456 samples a respective input symbol stream to produce a respective sampled signal stream. Each transmitter 456 further processes (e.g., converts to analog, amplifies, filters, upconverts, etc.) the respective sample stream to obtain an uplink signal. Analog transmit beamforming is processed in transmitter 456.

In uplink transmission, the processing related to the base station apparatus (410) may include:

receiver 416 is used to convert the radio frequency signals received through antenna 420 into baseband signals for MIMO detector 442; analog receive beamforming is processed in receiver 416;

a MIMO detector 442 for MIMO detecting signals received from receiver 416, and providing MIMO detected symbols to receive processor 442;

MIMO detector 442 outputs analog receive beamforming vectors to receiver 416;

receive processor 412 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;

controller/processor 440 receives the bitstream output by receive processor 412, provides 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 control plane;

controller/processor 440 passes control information for uplink transmission to receive processor 412 resulting from processing of downlink transmission by transmit processor 415;

the first signal in this application is generated by the transmit processor 455. A MIMO transmit processor 471 performs multi-antenna precoding on the baseband signals associated with the first signal output by the transmit processor 455. The transmitter 456 converts the baseband signal provided from the MIMO transmit processor 471 into a radio frequency signal, performs analog transmit beamforming, and transmits the radio frequency signal via the antenna 460. Receiver 416 may perform analog receive beamforming on the received signal via antenna 420 to obtain a radio frequency signal associated with the first signal, which may be converted to a baseband signal for provision to MIMO detector 442. MIMO detector 442 performs MIMO detection on the signals received from receiver 416. The receive processor 412 processes the baseband signal output by the MIMO detector 442 to obtain the first signal.

As an example, the operation is transmit, and the second signal in this application is generated by the upper layer packet to the controller/processor 490. A MIMO transmit processor 471 performs multi-antenna precoding on the second signal-related baseband signals output by the transmit processor 455. The transmitter 456 converts the baseband signal provided from the MIMO transmit processor 471 into a radio frequency signal, performs analog transmit beamforming, and transmits the radio frequency signal via the antenna 460. Receiver 416 may perform analog receive beamforming on the received signal via antenna 420 to obtain a radio frequency signal associated with the second signal, which may be converted to a baseband signal for provision to MIMO detector 442. MIMO detector 442 performs MIMO detection on the signals received from receiver 416. The receive processor 412 outputs the baseband signal output by the MIMO detector 442 to the controller/processor 440 for obtaining the second signal.

The third signal in this application is generated by the transmit processor 455. A MIMO transmit processor 471 performs multi-antenna precoding on the baseband signals associated with the third signal output by the transmit processor 455. The transmitter 456 converts the baseband signal provided from the MIMO transmit processor 471 into a radio frequency signal, performs analog transmit beamforming, and transmits the radio frequency signal via the antenna 460. Receiver 416 may perform analog receive beamforming on the received signal via antenna 420 to obtain a radio frequency signal associated with the third signal, which may be converted to a baseband signal for provision to MIMO detector 442. MIMO detector 442 performs MIMO detection on the signals received from receiver 416. The receive processor 412 processes the baseband signal output by the MIMO detector 442 to obtain the third signal.

As an embodiment, the UE450 apparatus includes: 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 control signal related to reception of the L reference signal groups, the first control signal indicating a first index corresponding to a first spatial parameter group; receiving the L reference signal groups, parameters in the first set of spatial parameters being used to receive the L reference signal groups; updating parameters in a target set of spatial parameters based on the measurements of the L sets of reference signals; wherein L is a positive integer greater than 1; the first index is one of Q indices, the Q indices being a subset of the K indices; k is a positive integer not less than 2, and Q is a positive integer less than K; the K indexes correspond to K spatial parameter sets one by one; the first spatial parameter set is a spatial parameter set corresponding to the first index of the K spatial parameter sets; the target spatial parameter set is a spatial parameter set corresponding to a target index in the K spatial parameter sets; the target index is associated to the Q indices, at least one of the Q indices being different from the target index.

As an 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: receiving a first control signal related to reception of the L reference signal groups, the first control signal indicating a first index corresponding to a first spatial parameter group; receiving the L reference signal groups, parameters in the first set of spatial parameters being used to receive the L reference signal groups; updating parameters in a target set of spatial parameters based on the measurements of the L sets of reference signals; wherein L is a positive integer greater than 1; the first index is one of Q indices, the Q indices being a subset of the K indices; k is a positive integer not less than 2, and Q is a positive integer less than K; the K indexes correspond to K spatial parameter sets one by one; the first spatial parameter set is a spatial parameter set corresponding to the first index of the K spatial parameter sets; the target spatial parameter set is a spatial parameter set corresponding to a target index in the K spatial parameter sets; the target index is associated to the Q indices, at least one of the Q indices being different from the target index.

As one embodiment, the gNB410 apparatus includes: 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 control signal related to transmission of the L reference signal groups, the first control signal indicating a first index corresponding to a first spatial parameter group; transmitting the L reference signal groups, parameters in the first spatial parameter set being used to transmit the L reference signal groups; wherein L is a positive integer greater than 1; the base station device assuming that the recipients of the L reference signal groups update parameters in a target set of spatial parameters based on measurements of the L reference signal groups; the first index is one of Q indices, the Q indices being a subset of the K indices; k is a positive integer not less than 2, and Q is a positive integer less than K; the K indexes correspond to K spatial parameter sets one by one; the first spatial parameter set is a spatial parameter set corresponding to the first index of the K spatial parameter sets; the target spatial parameter set is a spatial parameter set corresponding to a target index in the K spatial parameter sets; the target index is associated to the Q indices, at least one of the Q indices being different from the target index.

As an 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 control signal related to transmission of the L reference signal groups, the first control signal indicating a first index corresponding to a first spatial parameter group; transmitting the L reference signal groups, parameters in the first spatial parameter set being used to transmit the L reference signal groups; wherein L is a positive integer greater than 1; the base station device assuming that the recipients of the L reference signal groups update parameters in a target set of spatial parameters based on measurements of the L reference signal groups; the first index is one of Q indices, the Q indices being a subset of the K indices; k is a positive integer not less than 2, and Q is a positive integer less than K; the K indexes correspond to K spatial parameter sets one by one; the first spatial parameter set is a spatial parameter set corresponding to the first index of the K spatial parameter sets; the target spatial parameter set is a spatial parameter set corresponding to a target index in the K spatial parameter sets; the target index is associated to the Q indices, at least one of the Q indices being different from the target index.

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

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

As an example, the transmit processor 415, MIMO transmitter 441, and transmitter 416 may be used to transmit the first control signal in this application.

For one embodiment, receiver 456, MIMO detector 472 and receive processor 452 are configured to receive the first control signal in this application.

As an example, the transmit processor 415, MIMO transmitter 441 and transmitter 416 are used to transmit the L sets of reference signals in this application.

For one embodiment, receiver 456, MIMO detector 472 and receive processor 452 are configured to receive the L sets of reference signals in the present application.

For one embodiment, the transmit processor 455, the MIMO transmitter 471 and the transmitter 456 may be configured to transmit the first signal.

For one embodiment, receiver 416, MIMO detector 442 and receive processor 412 are used to receive the first signal in the present application.

For one embodiment, transmit processor 415, MIMO transmitter 441 and transmitter 416 are used to transmit the second control signals in this application.

For one embodiment, receiver 456, MIMO detector 472 and receive processor 452 are configured to receive the second control signal in this application.

As an example, the operation is that at least the first three of receive, transmit processor 415, MIMO transmitter 441, transmitter 416 and controller/processor 440 are used to transmit a second signal as described herein.

As an example, at least the first three of receive, receiver 456, MIMO detector 472, receive processor 452, and controller/processor 490 may be configured to receive a second signal in this application.

As an example, the operation is sending, and at least the first three of the transmission processor 455, MIMO transmitter 471, transmitter 456 and controller/processor 490 are used to send the second signal in this application.

As an example, at least the first three of the transmitter, receiver 416, MIMO detector 442, receive processor 412 and controller/processor 440 may be configured to receive a second signal in accordance with the present application.

As an example, the transmit processor 415, MIMO transmitter 441 and transmitter 416 are used to transmit the L2 sets of reference signals in this application.

For one embodiment, receiver 456, MIMO detector 472 and receive processor 452 are configured to receive the L2 sets of reference signals in the present application.

For one embodiment, the transmit processor 455, the MIMO transmitter 471 and the transmitter 456 may be configured to transmit the third signal.

For one embodiment, receiver 416, MIMO detector 442 and receive processor 412 are configured to receive the third signal in the present application.

As one example, at least the first three of transmit processor 415, MIMO transmitter 441, transmitter 416 and controller/processor 440 may be configured to transmit the third control signal in this application.

As one example, at least the first three of receiver 456, MIMO detector 472, receive processor 452, and controller/processor 490 may be configured to receive a third control signal in accordance with the present disclosure.

Example 5

Embodiment 5 illustrates a flow chart of wireless signal transmission according to the present application, as shown in fig. 5. In fig. 5, base station N1 is the serving cell maintaining base station for UE U2. The steps identified in block F1, block F2, block F3, and block F4 are optional. The steps identified in block F32 and block F33 do not exist at the same time.

For theBase station N1, transmitting a first control signal in step S11, transmitting L reference signal groups in step S12, receiving the first signal in step S13, updating parameters in the target spatial parameter group in step S14, transmitting a second control signal in step S15, transmitting or receiving the second signal in step S16, transmitting L2 reference signal groups in step S17, receiving a third signal in step S18, and transmitting a third control signal in step S19.

For theUE U2, the first control signal is received in step S21, the L reference signal groups are received in step S22, the first signal is transmitted in step S23, the parameters in the target spatial parameter group are updated in step S24, the second control signal is received in step S25, the second signal is received or transmitted in step S26, the L2 reference signal groups are received in step S17, the third signal is transmitted in step S18, and the third control signal is received in step S19.

In embodiment 5, the first control signal is related to reception of the L reference signal groups, the first control signal indicates a U2 first index, the first index corresponds to a first spatial parameter group; parameters in the first set of spatial parameters are used by U2 to receive the L sets of reference signals; u2 updating parameters in a target set of spatial parameters based on the measurements of the L sets of reference signals; n1 assumes that U2 updates parameters in a target set of spatial parameters based on measurements of the L sets of reference signals; wherein L is a positive integer greater than 1; the first index is one of Q indices, the Q indices being a subset of the K indices; k is a positive integer not less than 2, and Q is a positive integer less than K; the K indexes correspond to K spatial parameter sets one by one; the first spatial parameter set is a spatial parameter set corresponding to the first index of the K spatial parameter sets; the target spatial parameter set is a spatial parameter set corresponding to a target index in the K spatial parameter sets; the target index is associated to the Q indices, at least one of the Q indices being different from the target index.

As a sub-embodiment, the step in block F1 exists, the first signal relating to measurements based on the L sets of reference signals, U2 updating parameters in the set of target spatial parameters at a first point in time after the first signal is transmitted, N1 assumes that U2 updates parameters in the set of target spatial parameters at a first point in time after the first signal is transmitted.

As a sub-embodiment, the step in block F2 exists, the first signal indicating that N1 updates parameters in the target set of spatial parameters.

As a sub-embodiment, block F31 exists with the steps in block F32, the second control signal is related to the transmission of a second signal, the second control signal indicates U2 the target index, a parameter in the target set of spatial parameters is used by N1 for transmitting the second signal, and a parameter in the target set of spatial parameters is used by U2 for receiving the second signal.

As a sub-embodiment, block F31 exists with the steps in block F33, the second control signal is related to the transmission of a second signal, the second control signal indicates U2 the target index, a parameter in the target set of spatial parameters is used by U2 for transmitting the second signal, and a parameter in the target set of spatial parameters is used by N1 for receiving the second signal.

As a sub-embodiment, the second signal includes data.

As a sub-embodiment, the first control signal indicates air interface resources occupied by the L reference signal groups of U2, and the first control signal is a physical layer control signaling.

As a sub-embodiment, the step in block F4 exists, the L2 is a positive integer greater than 1; the third signal relates to measurements based on the set of L2 reference signals; the third control signal is used to update parameters in the first set of spatial parameters; wherein the first reference signal group is one of the L2 reference signal groups; the third control signal indicates the first index and an index of the first reference signal group; the first index is different from the target index.

The sub-embodiments described above can be combined arbitrarily without conflict.

Example 6

Embodiment 6 illustrates target spatial parameter set updating as shown in fig. 6. In fig. 6, the ellipse with the dotted line is the first analog transmit beam, the ellipse with the cross filling is the first analog receive beam, the ellipse with the diagonal filling is the second analog transmit beam, the ellipse with the dots filling is the second analog receive beam, and the ellipse with the gray filling is the target analog transmit beam.

In embodiment 6, the base station indicates the first index of the user equipment in the first signaling. The first index is associated to a target index. The target spatial parameter set is a spatial parameter set corresponding to the target index. The first simulated receive beam is a simulated receive beam generated using parameters in a first set of spatial parameters corresponding to the first index. The first signaling is also used to trigger reception of the L sets of reference signals. L different analog transmit beams are used to transmit the L reference signal groups, respectively. The user equipment receives the L reference signal groups using the first analog receive beam according to the indication of the first signaling. And the user equipment measures the L reference signal groups to obtain L corresponding channel quality values respectively. The target reference signal group is one of the L reference signal groups. The target set of reference signals corresponds to the best of the L channel quality values. A target analog transmit beam is used to transmit the target set of reference signals. And the user equipment reports the identification of the target reference signal group to the base station through a first signal. Prior to the first point in time, a parameter of the target spatial parameters is a spatial parameter used to generate a second simulated transmit beam and a second simulated receive beam in a downlink transmission. At a first point in time, the user equipment and the base station equipment update the target set of spatial parameters, parameters of which are replaced with spatial parameters used for generating the target simulated transmit beam and the first simulated receive beam in downlink transmission.

As an embodiment, the identification of the set of reference signals comprised by the target set of spatial parameters is replaced by the identification of the target set of reference signals.

As an embodiment, the direction of the downlink transmission beam corresponding to the first spatial parameter group is related to the direction of the downlink transmission beam corresponding to the L reference signal groups.

As an embodiment, the beam width of the downlink transmission beam corresponding to the first spatial parameter group is greater than the beam width of any one of the L downlink transmission beams corresponding to the L reference signal groups.

As an embodiment, the reference signals in the L reference signal groups are aperiodic CSI-RS.

As an embodiment, the target index is used to indicate that the target analog transmit beam is used to transmit L0 reference signal groups in the trigger signal of the subsequent aperiodic reference signal, i.e. the analog transmit beams of the L0 reference signal groups are the same, and L0 is a positive integer greater than 1.

Example 7

Embodiment 7 illustrates another embodiment of target spatial parameter set updating, as shown in fig. 7. In fig. 7, the cross-filled ellipse is a first analog transmit beam, the dashed ellipse is a first analog receive beam, the diagonal filled ellipse is a second analog transmit beam, the circle filled ellipse is a second analog receive beam, and the gray filled ellipse is a target analog receive beam.

In embodiment 7, the base station indicates the user equipment first index in the first signaling. The first index is associated to a target index. The target spatial parameter set is a spatial parameter set corresponding to the target index. The first analog transmit beam is an analog transmit beam generated using parameters in a first set of spatial parameters corresponding to the first index. The first signaling is also used to trigger reception of the L sets of reference signals. The first analog transmit beam is used to transmit the L reference signal groups, i.e., the analog transmit beams corresponding to the L reference signal groups are the same. The first simulated receive beam is a simulated receive beam generated using parameters in a first set of spatial parameters corresponding to the first index. The user equipment receives the L reference signal groups respectively by using L different analog receiving beams related to the first analog receiving beam according to the indication of the first signaling. And the user equipment measures the L reference signal groups to obtain L corresponding channel quality values respectively. The target reference signal group is one of the L reference signal groups. The target set of reference signals corresponds to the best of the L channel quality values. A target analog receive beam is used to receive the target set of reference signals. And the user equipment reports the corresponding channel quality value of the target reference signal group to the base station through a first signal. Prior to the first point in time, a parameter of the target spatial parameters is a spatial parameter used to generate a second simulated transmit beam and a second simulated receive beam in a downlink transmission. At a first point in time, the user equipment and the base station equipment update the target set of spatial parameters, parameters of which are replaced with parameters for generating the first simulated transmit beam and the target simulated receive beam in downlink transmission.

As an embodiment, the target index is used to indicate in the trigger signal of the subsequent aperiodic reference signal that the target analog receive beam is used to receive L0 reference signal groups, i.e. the analog receive beams of the L0 reference signal groups are the same, the L0 is a positive integer greater than 1.

Example 8

Embodiment 8 illustrates a block diagram of a processing device in a UE, as shown in fig. 8. In fig. 8, the UE processing apparatus 800 is mainly composed of a first receiver module 801, a first transceiver module 802, and a first processor module 803.

In embodiment 8, the first receiver module 801 receives the first control signal, the first transceiver module 802 receives the L reference signal groups, and the first processor module 803 updates the parameters in the target spatial parameter group.

In embodiment 8, the first control signal relates to reception of the L reference signal groups, the first control signal indicating a first index corresponding to a first spatial parameter group; parameters in the first set of spatial parameters are used to receive the L sets of reference signals; updating parameters in a target set of spatial parameters based on the measurements of the L sets of reference signals; wherein L is a positive integer greater than 1; the first index is one of Q indices, the Q indices being a subset of the K indices; k is a positive integer not less than 2, and Q is a positive integer less than K; the K indexes correspond to K spatial parameter sets one by one; the first spatial parameter set is a spatial parameter set corresponding to the first index of the K spatial parameter sets; the target spatial parameter set is a spatial parameter set corresponding to a target index in the K spatial parameter sets; the target index is associated to the Q indices, at least one of the Q indices being different from the target index.

For one embodiment, the first transceiver module 802 transmits a first signal; wherein the first signal relates to measurements based on the set of L reference signals; the user equipment updates parameters in the target set of spatial parameters at a first point in time after transmitting the first signal.

As an embodiment, the first signal indicates that a parameter in the target set of spatial parameters is updated.

For one embodiment, the first receiver module 801 receives a second control signal, the second control signal being related to the reception of a second signal, the second control signal indicating the target index; the first transceiver module 802 operates on the second signal, and the parameters in the target set of spatial parameters are used to operate on the second signal, either for reception or transmission.

As an embodiment, the second signal includes data therein.

As an embodiment, the first control signal indicates air interface resources occupied by the L reference signal groups, and the first control signal is a physical layer control signaling.

For one embodiment, the first transceiver module 802 receives L2 sets of reference signals, the L2 being a positive integer greater than 1; the first transceiver module 802 transmits a third signal relating to measurements based on the set of L2 reference signals; the first receiver module 801 receives a third control signal, which is used to update parameters in the first set of spatial parameters; wherein the first reference signal group is one of the L2 reference signal groups; the third control signal indicates the first index and an index of the first reference signal group; the first index is different from the target index.

Example 9

Embodiment 9 is a block diagram illustrating a processing apparatus in a base station, as shown in fig. 9. In fig. 9, the base station processing apparatus 900 mainly comprises a first transmitter module 901 and a second transceiver module 902.

In embodiment 9, the first transmitter module 901 transmits a first control signal, and the second transceiver module 902 transmits L reference signal groups.

In embodiment 9, the first control signal is related to transmission of the L reference signal groups, the first control signal indicates a first index, and the first index corresponds to a first spatial parameter group; parameters in the first set of spatial parameters are used to transmit the L sets of reference signals; wherein L is a positive integer greater than 1; the base station device assuming that the recipients of the L reference signal groups update parameters in a target set of spatial parameters based on measurements of the L reference signal groups; the first index is one of Q indices, the Q indices being a subset of the K indices; k is a positive integer not less than 2, and Q is a positive integer less than K; the K indexes correspond to K spatial parameter sets one by one; the first spatial parameter set is a spatial parameter set corresponding to the first index of the K spatial parameter sets; the target spatial parameter set is a spatial parameter set corresponding to a target index in the K spatial parameter sets; the target index is associated to the Q indices, at least one of the Q indices being different from the target index.

For one embodiment, the second transceiver module 902 receives a first signal; wherein the first signal relates to measurements based on the set of L reference signals; the base station device assumes that the recipients of the L reference signal groups update the parameters in the target set of spatial parameters at a first point in time after transmitting the first signal.

For one embodiment, the second transceiver module 902 updates parameters in the target set of spatial parameters; wherein the first signal indicates an update to a parameter in the target set of spatial parameters.

As an embodiment, the first transmitter module 901 transmits a second control signal, the second control signal being related to the transmission of the second signal, the second control signal indicating the target index; the second transceiver module executes the second signal, the parameters in the target set of spatial parameters being used to execute the second signal, the executing being either transmitting or receiving.

As an embodiment, the second signal includes data therein.

For one embodiment, the second transceiver module 902 transmits L2 sets of reference signals, the L2 being a positive integer greater than 1; the second transceiver module 902 receives a third signal relating to measurements based on the set of L2 reference signals; the first transmitter module 901 transmits a third control signal, which is used to update parameters in the first spatial parameter set; wherein the first reference signal group is one of the L2 reference signal groups; the third control signal indicates the first index and an index of the first reference signal group; the first index is different from the target index.

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. UE and terminal 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, MTC (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, 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 for wireless communication, comprising

2. The method of claim 1, comprising

-transmitting a first signal;

3. The method of claim 2, wherein the first signal indicates an update to a parameter in the target set of spatial parameters.

4. A method according to any one of claims 1 to 3, characterized by comprising

5. The method of claim 4, wherein the second signal includes data.

6. The method according to any one of claims 1 to 3, wherein the first control signal indicates air interface resources occupied by the L reference signal groups, and the first control signal is a physical layer control signaling.

7. A method according to any one of claims 1 to 3, characterized by comprising

8. A method in a base station device for wireless communication, comprising

9. The method of claim 8, comprising

-receiving a first signal;

10. The method of claim 9, comprising

-updating parameters in the target set of spatial parameters;

11. The method of any one of claims 8 to 10, comprising

12. The method of claim 11, wherein the second signal includes data.

13. The method according to any one of claims 8 to 10, wherein the first control signal indicates air interface resources occupied by the L reference signal groups, and the first control signal is a physical layer control signaling.

14. The method of any one of claims 8 to 10, comprising

15. A user equipment for wireless communication, comprising:

-a first receiver module receiving a first control signal relating to reception of the L sets of reference signals, the first control signal indicating a first index corresponding to a first set of spatial parameters;

16. A base station device for wireless communication comprises the following modules

-a first transmitter module to transmit a first control signal related to the transmission of the L reference signal groups, the first control signal indicating a first index, the first index corresponding to a first set of spatial parameters;