CN113271673B

CN113271673B - Method and arrangement in a user equipment, base station, used for wireless communication

Info

Publication number: CN113271673B
Application number: CN202010094088.3A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-02-15
Filing date: 2020-02-15
Publication date: 2022-06-21
Anticipated expiration: 2040-02-15
Also published as: CN113271673A; WO2021160008A1

Abstract

Methods and arrangements in a user equipment, a base station, used for wireless communication are disclosed. Receiving, by a user equipment, first signaling and second signaling, the first signaling and the second signaling indicating first candidate QCL parameters and second candidate QCL parameters, respectively; respectively monitoring target signaling in a first time-frequency resource pool and a second time-frequency resource pool; receiving a third signaling in the second time frequency resource pool; receiving a first wireless signal on the first carrier when the third signaling is not capable of indicating QCL parameters, the first QCL parameters being used for reception of the first wireless signal; the first QCL parameter is a first candidate QCL parameter when the first pool of time-frequency resources overlaps in the time domain with a first time window; the first QCL parameter is a second candidate QCL parameter when the first pool of time-frequency resources does not overlap in the time domain with a first time window. The method and the device improve the receiving robustness and improve the transmission efficiency.

Description

Method and arrangement in a user equipment, base station, used for wireless communication

Technical Field

The present application relates to methods and apparatus in a wireless communication system, and more particularly, to methods and apparatus in a wireless communication system supporting multiple antennas.

Background

Large scale (Massive) MIMO has become a research hotspot for next generation mobile communications. In large-scale MIMO, multiple antennas form a narrow beam pointing to a specific direction by beamforming to improve communication quality. The beams formed by multi-antenna beamforming are generally narrow, and the beams of both communication parties need to be aligned for effective communication. In order to ensure that a UE (User Equipment) can receive or transmit data with a correct beam, the base station transmits beam indication information in scheduling signaling. Since a certain time is required for the UE side to monitor and decode the scheduling signaling, when the UE needs to use the beam specified in the scheduling signaling to receive downlink data, the base station needs to reserve a sufficient time interval between the scheduling signaling and the downlink data.

According to 3GPP (3rd Generation Partner Project) TS (Technical Specification) 38.214, when a time interval between cross-carrier scheduling signaling and Downlink data is less than a threshold or beam indication information of the Downlink data is not included in the cross-carrier scheduling signaling, the UE receives the Downlink data using a QCL parameter associated on a default PDSCH (Physical Downlink Shared CHannel); when the time interval between the self-scheduling signaling and the downlink data is smaller than a threshold or the self-scheduling signaling does not include the beam indication information of the downlink data, the UE receives the downlink data by using a QCL parameter of a default CoReset (Control Resource Set).

Disclosure of Invention

The inventor finds through research that how to determine QCL (semi-co-located) parameters of downlink data is a problem to be solved when one carrier can be scheduled by 2 carriers. Existing methods of determining QCL parameters for PDSCH may need to be further enhanced, especially considering that the scheduled carrier can be configured with a set of control resources on the scheduled carrier when it is the primary carrier.

In view of the above, the present application discloses a solution. It should be noted that, in the description of the present application, only the primary carrier is used as a scheduled carrier as a typical application scenario; the method and the device are also applicable to other scenes facing similar problems, for example, the scheduled carrier is a secondary carrier, and the technical effect similar to the scene that the scheduled carrier is a primary carrier is achieved. In addition, the adoption of a unified solution for different scenarios also helps to reduce hardware complexity and cost. Without conflict, embodiments and features of embodiments in any node of the present application may be applied to any other node. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

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

receiving first signaling and second signaling, the first signaling and the second signaling indicating first candidate QCL parameters and second candidate QCL parameters, respectively;

respectively monitoring target signaling in a first time-frequency resource pool and a second time-frequency resource pool; receiving a third signaling in the second time frequency resource pool;

receiving a first wireless signal on the first carrier;

the first time-frequency resource pool and the second time-frequency resource pool belong to a first carrier and a second carrier respectively on a frequency domain; the target signaling is used for scheduling wireless transmission on the first carrier, and the third signaling comprises configuration information of the first wireless signal; a first QCL parameter is used for reception of the first wireless signal when the third signaling cannot indicate QCL parameters, the third signaling indicating QCL parameters being used for reception of the first wireless signal when the third signaling can indicate QCL parameters; the first QCL parameter is a first candidate QCL parameter when the first pool of time-frequency resources overlaps in the time domain with a first time window; the first QCL parameter is a second candidate QCL parameter when the first pool of time-frequency resources does not overlap in the time domain with a first time window; the first candidate QCL parameter is a QCL parameter of a first set of control resources, the first set of control resources being one of the sets of control resources associated with the portion of the first pool of time-frequency resources in the most recent one of the time slots of the first time window having a smallest set identification of control resources.

As an embodiment, in the above method, the user equipment selects the first QCL parameter from the first and second QCL candidate parameters according to whether target signaling is monitored in the first time window on the first carrier. The method makes the UE possible to select more accurate QCL parameters from the 2 candidate parameters to receive the first wireless signal, and improves the receiving performance.

As an embodiment, when the search space of the user equipment exists in the first time window, the user equipment preferentially adopts the QCL parameter of the first set of control resources, so that the robustness of reception of the first wireless signal is ensured, and the transmission efficiency can be ensured.

As an embodiment, when the search space of the user equipment does not exist in the first time window, the QCL parameters of the first set of control resources are less correlated with the first wireless signal, and the QCL parameters are switched to the second candidate QCL parameters to improve the reception robustness.

Specifically, according to an aspect of the present application, the second candidate QCL parameter is a QCL parameter of a second set of control resources, and the second set of control resources is a set of control resources configured on the first carrier and having a minimum control resource set identifier.

As an embodiment, the control resource set with the smallest control resource set identifier generally has wider coverage, and can ensure the robustness of receiving the first wireless signal.

As an embodiment, the minimum set of control resources is identified as 0.

Specifically, according to an aspect of the present application, the second candidate QCL parameter is the QCL parameter with the smallest identity of the data channel of the first carrier that is activated.

As an embodiment, the above aspects apply to a scenario where there is no set of control resources for broadcast on the first carrier.

As an embodiment, the above aspects apply to a scenario where there is no set of control resources for a wide beam on the first carrier.

As an embodiment, the data channel is located at active BWP (BandWidth Part) in the frequency domain.

As one embodiment, the data channel is a physical layer channel.

As an embodiment, the transmission CHannel corresponding to the data CHannel is a DL-SCH (DownLink Shared CHannel).

As an embodiment, the data CHannel is a PDSCH (Physical Downlink Shared CHannel).

Specifically, according to one aspect of the present application, the method includes: receiving fourth signaling, the fourth signaling indicating the first time threshold.

As an embodiment, the fourth signaling is higher layer signaling.

As an embodiment, the fourth signaling is timeduration for qcl.

In particular, according to an aspect of the application, the third signaling may indicate the QCL parameter when the time interval between receiving the third signaling and receiving the first wireless signal is not less than the first time threshold and the third signaling indicates the QCL parameter.

As an embodiment, the phrase said third signaling indicates that the QCL parameters include control resource set configuration tci-PresentInDCI to which said third signaling belongs.

As an embodiment, the phrase the third signaling indicates that the QCL parameters include the inclusion of a TCI field in the third signaling.

Specifically, according to an aspect of the present application, the first carrier is allocated to a primary serving cell, and the second carrier is allocated to a secondary serving cell.

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

transmitting first and second signaling indicating first and second candidate QCL parameters, respectively;

sending a third signaling, wherein the time-frequency resource occupied by the third signaling belongs to a second time-frequency resource pool;

transmitting a first wireless signal on the first carrier;

wherein the second time-frequency resource pool belongs to a second carrier in the frequency domain; the third signaling comprises configuration information of the first wireless signal; a first QCL parameter is used for reception of the first wireless signal when the third signaling cannot indicate QCL parameters, the third signaling indicating QCL parameters being used for reception of the first wireless signal when the third signaling can indicate QCL parameters; when a first pool of time-frequency resources overlaps in time domain with a first time window, the first QCL parameter is a first candidate QCL parameter; when the first pool of time-frequency resources does not overlap in time domain with a first time window, the first QCL parameter is a second candidate QCL parameter; the first time-frequency resource pool belongs to the first carrier on a frequency domain; the first candidate QCL parameter is a QCL parameter of a first set of control resources, the first set of control resources being one of the sets of control resources associated with the portion of the first pool of time-frequency resources in the most recent one of the time slots of the first time window having a smallest set identification of control resources.

Specifically, according to one aspect of the present application, the method includes: transmitting fourth signaling, the fourth signaling indicating the first time threshold.

As an embodiment, the fourth signaling is RRC layer specific (Dedicated) signaling.

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

a first receiver to receive first and second signaling indicating first and second candidate QCL parameters, respectively;

the second receiver monitors target signaling in the first time-frequency resource pool and the second time-frequency resource pool respectively; receiving a third signaling in the second time frequency resource pool;

the first receiver receives a first wireless signal on the first carrier;

the first time frequency resource pool and the second time frequency resource pool belong to a first carrier and a second carrier respectively in a frequency domain; the target signaling is used for scheduling wireless transmission on the first carrier, and the third signaling comprises configuration information of the first wireless signal; a first QCL parameter is used for reception of the first wireless signal when the third signaling cannot indicate QCL parameters, the third signaling indicating QCL parameters being used for reception of the first wireless signal when the third signaling can indicate QCL parameters; the first QCL parameter is a first candidate QCL parameter when the first pool of time-frequency resources overlaps in the time domain with a first time window; the first QCL parameter is a second candidate QCL parameter when the first pool of time-frequency resources does not overlap in the time domain with a first time window; the first candidate QCL parameter is a QCL parameter of a first set of control resources, the first set of control resources being one of the sets of control resources associated with the portion of the first pool of time-frequency resources in the most recent one of the time slots of the first time window having a smallest set identification of control resources.

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

a first transmitter to transmit first and second signaling indicating first and second candidate QCL parameters, respectively;

the second transmitter is used for transmitting a third signaling, and the time-frequency resource occupied by the third signaling belongs to a second time-frequency resource pool;

the first transmitter transmits a first wireless signal on the first carrier;

the second time-frequency resource pool belongs to a second carrier wave on a frequency domain; the third signaling comprises configuration information of the first wireless signal; when the third signaling is not capable of indicating the QCL parameters, the first QCL parameters are used for reception of the first wireless signals, and when the third signaling is capable of indicating the QCL parameters, the QCL parameters indicated by the third signaling are used for reception of the first wireless signals; when a first pool of time-frequency resources overlaps in time domain with a first time window, the first QCL parameter is a first candidate QCL parameter; when the first pool of time-frequency resources does not overlap in time domain with a first time window, the first QCL parameter is a second candidate QCL parameter; the first time-frequency resource pool belongs to the first carrier on a frequency domain; the first candidate QCL parameter is a QCL parameter of a first set of control resources, the first set of control resources being one of the sets of control resources associated with the portion of the first pool of time-frequency resources in the most recent one of the time slots of the first time window having a smallest set identification of control resources.

Drawings

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

fig. 1 shows a flow diagram of transmitting a first wireless signal 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 an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

fig. 4 illustrates a schematic diagram of an NR (New Radio) node and a UE according to an embodiment of the present application;

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

fig. 6 shows a schematic diagram of a first time-frequency resource pool and a second time-frequency resource pool according to an embodiment of the application;

figure 7 shows a schematic diagram of a third signaling scheduling of a first wireless signal according to one embodiment of the present application;

figure 8 shows a schematic diagram of a third signaling scheduling of a first wireless signal according to one embodiment of the present application;

fig. 9 shows a block diagram of a processing device for use in a user equipment according to an embodiment of the present application;

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

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart for transmitting a first wireless signal; as shown in figure 1.

In embodiment 1, the user equipment 100 receives, in step S101, first signaling and second signaling indicating first candidate QCL parameters and second candidate QCL parameters, respectively; in step S102, target signaling is respectively monitored in the first time-frequency resource pool and the second time-frequency resource pool; receiving a third signaling in the second time frequency resource pool; receiving a first wireless signal on the first carrier in step S103;

in embodiment 1, the first time-frequency resource pool and the second time-frequency resource pool belong to a first carrier and a second carrier, respectively, in a frequency domain; the target signaling is used for scheduling wireless transmission on the first carrier, and the third signaling comprises configuration information of the first wireless signal; when the third signaling is not capable of indicating the QCL parameters, the first QCL parameters are used for reception of the first wireless signals, and when the third signaling is capable of indicating the QCL parameters, the QCL parameters indicated by the third signaling are used for reception of the first wireless signals; the first QCL parameter is a first candidate QCL parameter when the first pool of time-frequency resources overlaps in the time domain with a first time window; the first QCL parameter is a second candidate QCL parameter when the first pool of time-frequency resources does not overlap in the time domain with a first time window; the first candidate QCL parameter is a QCL parameter of a first set of control resources, the first set of control resources being one of the sets of control resources associated with the portion of the first pool of time-frequency resources in the most recent one of the time slots of the first time window having a smallest set identification of control resources.

As an embodiment, the first time-frequency Resource pool and the second time-frequency Resource pool respectively include a plurality of REs (Resource elements).

As an embodiment, the first time-frequency resource pool and the second time-frequency resource pool respectively occupy a plurality of multicarrier symbols in a time domain and respectively occupy a plurality of subcarriers in a frequency domain.

As an embodiment, the first time-frequency resource pool and the second time-frequency resource pool belong to a BWP (BandWidth Part) in the time domain.

As an embodiment, the multicarrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As an embodiment, the multicarrier symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

As an embodiment, the multi-carrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

As an embodiment, the Multi-Carrier symbol is an FBMC (Filter Bank Multi Carrier) symbol.

As an embodiment, the multicarrier symbol comprises a CP (Cyclic Prefix).

As an embodiment, the target signaling is identified by an identity of the user equipment 100.

As an embodiment, CRC (Cyclic Redundancy Check) bits of the target signaling are scrambled by an identity of the user equipment 100.

As an embodiment, the identity of the user equipment 100 is used to generate an RS (Reference Signal) sequence of a DMRS (DeModulation Reference Signal) of the target signaling.

As an embodiment, the identity of the user equipment 100 comprises 16 bits.

As an embodiment, the identity of the ue 100 is an RNTI (Radio Network temporary identifier).

As an embodiment, the identity of the user equipment 100 associated with the target signaling sent in the first time-frequency resource pool is the same as the identity of the user equipment 100 associated with the target signaling sent in the second time-frequency resource pool.

As an embodiment, the identity of the user equipment 100 associated with the target signaling sent in the first time-frequency resource pool and the identity of the user equipment 100 associated with the target signaling sent in the second time-frequency resource pool are configured independently by a base station.

As an embodiment, the target signaling is physical layer signaling.

As an embodiment, the Physical layer Channel occupied by the target signaling is a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first wireless signal is transmitted on a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the expiration time of the first time window is no later than the expiration time of the first wireless signal.

As an embodiment, the expiration time of the first time window is no later than the expiration time of the time slot occupied by the first wireless signal.

As an embodiment, the expiration time of the first time window is no later than the expiration time of the sub-frame occupied by the first wireless signal.

As an embodiment, the first time window includes a time slot occupied by the first wireless signal.

As an embodiment, the first time window includes a plurality of time slots, and the time slot occupied by the first wireless signal is the last time slot of the plurality of time slots.

In one embodiment, the first time-frequency resource pool includes time-frequency resources of at least one search space, and the second time-frequency resource pool includes time-frequency resources of at least one search space.

As an embodiment, the third signaling is one of the target signaling detected by the second receiver.

As an embodiment, the third signaling may not indicate the QCL parameter when a time interval between receiving the third signaling and receiving the first wireless signal is less than a first time threshold.

As an embodiment, the third signaling may not indicate the QCL parameter when there is no TCI field (field) in the third signaling.

As an embodiment, the third signaling may not indicate the QCL parameter when a TCI field is included in the third signaling and a time interval between receiving the third signaling and receiving the first wireless signal is less than a first time threshold.

As an embodiment, when the tci-PresentInDCI is configured to be enabled and a time interval between receiving the third signaling and receiving the first wireless signal is less than a first time threshold, the third signaling may not indicate the QCL parameter.

As an embodiment, when the tci-PresentInDCI is not configured, the third signaling may not indicate the QCL parameter.

As an embodiment, when there is no TCI field in the third signaling, the third signaling cannot indicate the QCL parameter.

As one embodiment, the first time threshold is fixed.

As an embodiment, the first time threshold is indicated by higher layer signaling sent by the user equipment.

As an embodiment, the higher layer signaling is RRC layer signaling.

As an embodiment, the higher layer signaling is used for UE capability reporting.

As an embodiment, the first signaling and the second signaling are both higher layer signaling.

As an embodiment, the first signaling and the second signaling are both RRC (Radio Resource Control) layer signaling.

As an embodiment, the first signaling is cell-common and the first signaling is UE-specific.

As an embodiment, the first signaling includes information transmitted on PBCH (Physical Broadcasting CHannel).

As an embodiment, the first signaling includes MIB (Master information Block).

As an embodiment, the first signaling includes a SIB (System information Block).

As an embodiment, the first signaling includes ServingCellConfigCommon IE (Information Element).

As an embodiment, the first signaling and the second signaling are both UE-specific.

As an embodiment, the first signaling includes a Media Access Control (MAC) CE (Control Element).

As one embodiment, the one MAC CE is used to select the QCL parameters of the first set of control resources from a plurality of available QCL parameters of the first set of control resources.

As an embodiment, the plurality of available QCL parameters of the first set of control resources is indicated by tci-statesdcch-ToAddList.

As an embodiment, one QCL parameter is indicated by one TCI (Transmission Configuration Indicator) on the physical layer channel.

As an embodiment, the first signaling includes a ControlResourceSet IE (Information Element).

As an embodiment, the control resource set identity is indicated by 4 bits.

As an embodiment, the control resource set identification is an integer of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10.

As one embodiment, the control resource set identification is a controlResourceSetId.

As one embodiment, the phrase monitoring target signaling includes: blind Decoding (Blind Decoding) is performed.

As one embodiment, the phrase monitoring target signaling includes: energy detection is performed.

As one embodiment, the phrase monitoring target signaling includes: coherent detection of the signature sequence is performed.

As one embodiment, the phrase monitoring target signaling includes: and performing channel decoding, and judging whether the target signaling is received according to Cyclic Redundancy Check (CRC).

As one embodiment, the phrase monitoring target signaling includes: and executing blind decoding, and judging whether the target signaling is sent or not according to the CRC.

As one embodiment, the phrase monitoring target signaling includes: if not, the target signaling is judged not to be received.

For one embodiment, one QCL parameter includes at least one QCL relationship, one QCL relationship including one reference signal and associated one QCL type.

For one embodiment, one QCL parameter includes at most two QCL relationships, each of which includes one reference signal and associated one QCL type.

As an embodiment, the QCL type is one of QCL type a, QCL type B, QCL type C, and QCL type D.

As an embodiment, the one QCL parameter used for reception of the first wireless signal comprises: the user equipment 100 receives the first wireless signal by adopting a first receiving parameter group; the first set of reception parameters is associated to a reference signal indicated according to the one QCL parameter.

As an embodiment, the first set of reception parameters relates to a QCL type indicated by the one QCL parameter.

For one embodiment, the first set of receive parameters includes a receive beamforming vector.

For one embodiment, the first set of receive parameters includes a simulated (Analog) receive beamforming vector.

As an embodiment, the first set of receive parameters includes a digital receive beamforming vector.

For one embodiment, the first set of reception parameters includes frequency offset compensation.

Generally speaking, how to use a QCL parameter for the reception of the first wireless signal is implementation-dependent, i.e. should be implemented by the manufacturer of the respective device, and the embodiments given below are some common implementations.

As an embodiment, the one QCL parameter used for reception of the first wireless signal comprises: the user equipment 100 assumes that a transmitter transmits the first radio signal using a first set of transmission parameters; the first and second transmission parameter groups conform to a QCL type indicated by the one QCL parameter; the transmitter transmits the reference signal indicated by the one QCL parameter using the second set of transmission parameters.

As an embodiment, the one QCL parameter used for reception of the first wireless signal comprises: the ue 100 preferentially receives the first wireless signal using the first set of reception parameters.

As an embodiment, if there is no overlap between the signal to be received with higher priority and the first wireless signal, the ue 100 receives the first wireless signal using the first receiving parameter group; if there is an overlap between the first radio signal and the signal to be received with higher priority, the ue 100 cannot receive the first radio signal with the first set of receiving parameters.

Example 2

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

Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced) and future 5G systems. The LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200. The EPS200 may include one or more UEs (User Equipment) 201, E-UTRAN-NR (Evolved UMTS terrestrial radio access network-new radio) 202, 5G-CN (5G-Core network, 5G Core network)/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) 220, and internet service 230. The UMTS is compatible with Universal Mobile Telecommunications System (Universal Mobile Telecommunications System). The EPS200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the EPS200 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. The E-UTRAN-NR202 includes NR (New Radio ) node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an X2 interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (point of transmission reception), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5G-CN/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, 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 is connected to the 5G-CN/EPC210 through an S1 interface. The 5G-CN/EPC210 includes an MME211, other MMEs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213. The MME211 is a control node that handles signaling between the UE201 and the 5G-CN/EPC 210. In general, the MME211 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 gNB203 corresponds to the base station in this application.

As an embodiment, the UE201 corresponds to the UE in this application.

As an embodiment, the UE201 supports Carrier Aggregation (Carrier Aggregation).

As one embodiment, the gNB203 supports Carrier Aggregation (Carrier Aggregation).

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of the radio protocol architecture for the user plane and the control plane as shown in figure 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 UE and the gNB 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 protocol layers above the L2 layer 305, including a network layer (e.g., IP layer) that terminates at the P-GW213 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 packets to reduce radio transmission overhead, security by ciphering the packets, and handover support for UEs between gnbs. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat reQuest). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the UE and the gNB is substantially the same for the physical layer 301 and the L2 layer 305, but without the header compression function for the control plane. The Control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configures the lower layers using RRC signaling between the gNB and the UE.

As 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 in this application.

As an embodiment, the first signaling is generated in the RRC sublayer 306.

As an embodiment, the first signaling and the second signaling are generated in the MAC sublayer 302.

As an embodiment, the first signaling includes 2 parts, and the 2 parts are generated in the RRC sublayer 306 and the MAC sublayer 302, respectively.

As an embodiment, the second signaling includes 2 parts, and the 2 parts are generated in the RRC sublayer 306 and the MAC sublayer 302, respectively.

For one embodiment, the third signaling is generated at the PHY 301.

As an embodiment, the fourth signaling is generated in the RRC sublayer 306.

Example 4

Embodiment 4 illustrates a schematic diagram of an NR node and a UE as shown in fig. 4. Fig. 4 is a block diagram of a UE450 and a gNB410 in communication with each other in an access network.

gNB410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multiple antenna receive processor 472, a multiple antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

The UE450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

In the DL (Downlink), at the gNB410, upper layer data packets from the core network are provided to a controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In the DL, the controller/processor 475 provides header compression, ciphering, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the UE450 based on various priority metrics. Controller/processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to UE 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the UE450, as well as mapping of signal constellation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate the physical channels that carry the time-domain multicarrier symbol streams. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

In the DL (Downlink), at the UE450, each receiver 454 receives a signal through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. Receive processor 456 converts the baseband multicarrier symbol stream after the receive analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signals and the reference signals to be used for channel estimation are demultiplexed by the receive processor 456, and the data signals are subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the UE 450. The symbols on each spatial stream are demodulated and recovered at a receive processor 456 and soft decisions are generated. A receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the gNB410 on the physical channels. The upper layer data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the functionality of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the DL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing. The controller/processor 459 is also responsible for error detection using an Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.

In the UL (Uplink), at the UE450, a data source 467 is used to provide upper layer data packets to the controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function at the gNB410 described in the DL, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the gNB410, implementing L2 layer functions for the user plane and the control plane. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the gNB 410. A transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding by a multi-antenna transmit processor 457 including codebook-based precoding and non-codebook based precoding, and beamforming, and the transmit processor 468 then modulates the resulting spatial streams into multi-carrier/single-carrier symbol streams, which are provided to different antennas 452 via a transmitter 454 after analog precoding/beamforming in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides the radio frequency symbol stream to the antenna 452.

In UL (Uplink), the function at the gNB410 is similar to the reception function at the UE450 described in DL. Each receiver 418 receives an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multiple antenna receive processor 472 collectively implement the functionality of the L1 layer. Controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the UL, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer data packets from the controller/processor 475 may be provided to a core network. Controller/processor 475 is also responsible for error detection using the ACK and/or NACK protocol to support HARQ operations.

As an embodiment, the UE450 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 UE450 apparatus at least: receiving first and second signaling indicating first and second candidate QCL parameters, respectively; respectively monitoring target signaling in a first time-frequency resource pool and a second time-frequency resource pool; receiving a third signaling in the second time frequency resource pool; a first wireless signal is received on the first carrier.

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 first and second signaling indicating first and second candidate QCL parameters, respectively; respectively monitoring target signaling in a first time-frequency resource pool and a second time-frequency resource pool; receiving a third signaling in the second time frequency resource pool; a first wireless signal is received on the first carrier.

As an embodiment, the gNB410 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 first and second signaling indicating first and second candidate QCL parameters, respectively; sending a third signaling, wherein the time-frequency resource occupied by the third signaling belongs to a second time-frequency resource pool; transmitting a first wireless signal on the first carrier.

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 first and second signaling indicating first and second candidate QCL parameters, respectively; sending a third signaling, wherein a time frequency resource occupied by the third signaling belongs to a second time frequency resource pool; transmitting a first wireless signal on the first carrier.

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

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

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission, as shown in fig. 5. In fig. 5, base station N1 is the serving cell maintenance base station for user equipment U2.

For base station N1, transmitting first and second signaling indicating first and second candidate QCL parameters, respectively, in step S101; in step S102, a third signaling is sent, where a time-frequency resource occupied by the third signaling belongs to a second time-frequency resource pool; transmitting a first wireless signal on the first carrier in step S103;

for the user equipment U2, receiving a first signaling and a second signaling in step S201; in step S202, target signaling is respectively monitored in the first time-frequency resource pool and the second time-frequency resource pool; receiving a third signaling in the second time frequency resource pool; receiving a first wireless signal on the first carrier in step S203;

in embodiment 5, the first time-frequency resource pool and the second time-frequency resource pool belong to a first carrier and a second carrier, respectively, in a frequency domain; the target signaling is used for scheduling wireless transmission on the first carrier, and the third signaling comprises configuration information of the first wireless signal; a first QCL parameter is used for reception of the first wireless signal when the third signaling cannot indicate QCL parameters, the third signaling indicating QCL parameters being used for reception of the first wireless signal when the third signaling can indicate QCL parameters; the first QCL parameter is a first candidate QCL parameter when the first pool of time-frequency resources overlaps in the time domain with a first time window; the first QCL parameter is a second candidate QCL parameter when the first pool of time-frequency resources does not overlap in the time domain with a first time window; the first candidate QCL parameter is a QCL parameter of a first set of control resources, the first set of control resources being one of the sets of control resources associated with the portion of the first pool of time-frequency resources in the most recent one of the time slots of the first time window having a smallest set identification of control resources.

As an embodiment, the first signaling includes one MAC CE.

As an embodiment, the MAC CE included in the first signaling is used to indicate a TCI status of a PDCCH.

As an embodiment, an LCID (Logical Channel IDentifier) corresponding to the MAC CE included in the first signaling is 52.

As an embodiment, said portion of said first pool of time-frequency resources in a most recent time slot of said first time window is associated to only one set of control resources, said first set of control resources.

As one embodiment, the second carrier is allocated to a secondary serving cell and the first carrier is allocated to a primary serving cell.

As an embodiment, the number of control resource sets associated with the portion of the first time-frequency resource pool in the latest one time slot of the first time window is equal to the number of search spaces included in the portion of the first time-frequency resource pool in the latest one time slot of the first time window, that is, the first control resource set.

As one embodiment, the second candidate QCL parameter is a QCL parameter of a second set of control resources, the second set of control resources being a set of control resources configured on the first carrier with a minimum set of control resource identity.

As a sub-embodiment of the foregoing embodiment, the first carrier is allocated to a primary serving cell, and a minimum control resource set identifier configured on the first carrier is fixed to 0.

As a sub-embodiment of the foregoing embodiment, the second signaling is MIB or SIB.

As a sub-embodiment of the above embodiment, the second signaling is broadcast.

As a sub-embodiment of the above embodiment, the first carrier is allocated to a primary serving cell, and the second set of control resources is CORESET # 0.

As a sub-embodiment of the foregoing embodiment, the second signaling includes one MAC CE, and an LCID (Logical Channel IDentifier) corresponding to the MAC CE included in the second signaling is 52.

As one embodiment, the second candidate QCL parameter is the QCL parameter with the smallest identity of the data channel of the first carrier that is activated.

As a sub-embodiment of the above embodiment, the second signaling includes one MAC CE.

As an embodiment, the MAC CE included in the second signaling is used to activate and deactivate the TCI state of the PDSCH.

As an embodiment, the MAC CE included in the second signaling is used to indicate a TCI status of the PDCCH.

As an embodiment, an LCID (Logical Channel IDentifier) corresponding to the MAC CE included in the second signaling is 53.

As one embodiment, the data channel is a physical layer channel.

As an embodiment, the reference signal indicated by one QCL parameter is CSI (Channel Status Information) -RS.

As an example, one reference Signal indicated by QCL parameters is SSB (Synchronization Signal Block).

As an embodiment, a reference signal indicated by a QCL parameter is transmitted by the base station N2.

Example 6

Embodiment 6 illustrates a schematic diagram of a first time-frequency resource pool and a second time-frequency resource pool, as shown in fig. 6. In fig. 6, the squares filled with diagonal lines represent the time-frequency resources belonging to the first time-frequency resource pool, and the small squares filled with thick lines represent the time-frequency resources belonging to the second time-frequency resource pool.

In embodiment 6, a first carrier and a second carrier are respectively allocated to two serving cells, and the first time-frequency resource pool and the second time-frequency resource pool belong to the first carrier and the second carrier in a frequency domain.

As an embodiment, the time-frequency resources represented by the four squares B1, B2, B3 and B4 belong to the same search space.

As an embodiment, the time-frequency resources represented by the four squares a1, a2, A3 and a4 belong to one search space, and the control resource sets associated with a1, a2, A3 and a4 are the control resource sets associated with the one search space; the time-frequency resources represented by the two squares of C1 and C2 belong to another search space, and the control resource set associated with C1 and C2 is the control resource set associated with the other search space.

As an example, the time-frequency resources represented by the four squares a1, a2, A3 and a4 are associated to a set of control resources; the time-frequency resources represented by the two squares C1 and C2 are associated to another set of control resources.

As an example, time interval #1 is the first time window in this application, and the time interval #1 includes two time slots, where a2 and C1 are located at the previous time slot and the next time slot, respectively; the first set of control resources is the one of the sets of control resources associated with C1 with the smallest set of control resources identification.

As an example, time interval #2 is the first time window in this application, and time interval #1 includes one time slot, where both a4 and C2 are located; the first control resource set is the control resource set with the smallest control resource set identification in the { control resource set associated with a4, control resource set associated with C2 }.

Example 7

A schematic diagram of scheduling a first wireless signal by the third signaling illustrated in embodiment 7; as shown in fig. 7. In fig. 7, the squares filled with diagonal lines represent the time-frequency resources belonging to the first time-frequency resource pool, the small squares filled with thick lines represent the time-frequency resources occupied by the third signaling, and the squares filled with dots represent the time-frequency resources occupied by the first wireless signal.

In embodiment 7, the third signaling includes configuration information of the first wireless signal.

In one embodiment, the configuration information of the first wireless signal includes time-frequency resources occupied by the first wireless signal.

As one embodiment, the configuration information of the first wireless signal includes an MCS (Modulation Coding Status) of the first wireless signal.

As an embodiment, the configuration information of the first wireless signal includes a process number of HARQ (Hybrid Auto Repeat reQuest) of the first wireless signal.

As an embodiment, the third signaling is DCI (Downlink Control Information) for Downlink Grant (Downlink Grant).

As an example, the third signaling cannot indicate QCL parameters, and the first time window in this application is time interval #3 in fig. 7; the first pool of time-frequency resources does not overlap with the time interval #3, and the first QCL parameter is a second candidate QCL parameter.

As an embodiment, the second candidate QCL parameter is a QCL parameter of CORESET # 0.

In the above embodiment, there is no search space of the ue in the first time window of the first carrier, and the QCL parameters of the CORESET outside the CORESET #0 before the first time window have weaker correlation with the QCL parameters of the first wireless signal, so that the receiving performance of the first wireless signal can be ensured by using the QCL parameters of the CORESET # 0.

As an embodiment, the second candidate QCL parameter is a QCL parameter indicated by a TCI state with a minimum TCI state identification among TCI states activated by a MAC CE activated for TCI state activation of PDSCH.

For one embodiment, the TCI status flag is TCI-StateId.

For one embodiment, the TCI status flag is not greater than 64.

As an embodiment, the LCID of the MAC CE for TCI status activation of PDSCH is 53, and the serving cell indicated by the carried serving cell identity occupies the first carrier.

As an example, the third signaling cannot indicate QCL parameters, and the first time window in this application is time interval #4 in fig. 7; the first pool of time-frequency resources overlaps with the time interval #3, and the first QCL parameter is a first candidate QCL parameter.

Example 8

A schematic diagram of scheduling a first wireless signal by the third signaling illustrated in embodiment 8; as shown in fig. 8. In fig. 8, a square lattice filled with diagonal lines represents a time-frequency resource belonging to the first time-frequency resource pool, a small square lattice filled with thick lines represents a time-frequency resource occupied by the third signaling, and a square lattice filled with dots represents a time-frequency resource occupied by the first wireless signal.

As an embodiment, the third signaling is used to trigger the first wireless signal.

As an example, the third signaling cannot indicate the QCL parameter, and the first time window in this application includes the first time slot in fig. 8; a first time-frequency resource pool overlaps with the first time slot, and the overlapping part of the first time-frequency resource pool and the first time slot comprises a block A and a block C in the figure 8; wherein box a and box C are assigned a first search space and a second search space, respectively; the first control resource set is one of the first candidate control resource set and the second control resource set having a smaller control resource set identifier, and the first candidate control resource set and the second control resource set are control resource sets to which the first search space and the second search space are mapped, respectively.

The embodiment ensures that the user equipment can correctly receive the control signaling with higher priority, does not influence the reception of the first wireless signal, and improves the robustness of system design.

As one embodiment, the first slot includes 14 multicarrier symbols.

As one embodiment, the first slot includes 12 multicarrier symbols.

As an example, the duration of the first time slot is 1 millisecond.

As one embodiment, a first time window consists of the first time slot.

Example 9

Embodiment 9 illustrates a block diagram of a processing apparatus for use in a user equipment; as shown in fig. 9. In fig. 9, a processing means 1000 in a user equipment is mainly composed of a first receiver 1001 and a second receiver 1002.

In embodiment 9, a first receiver 1001 receives first signaling and second signaling indicating first candidate QCL parameters and second candidate QCL parameters, respectively; the second receiver 1002 monitors the target signaling in the first time-frequency resource pool and the second time-frequency resource pool, respectively; receiving a third signaling in the second time frequency resource pool; a first receiver 1001 receives a first wireless signal on the first carrier;

in embodiment 9, the first time-frequency resource pool and the second time-frequency resource pool belong to a first carrier and a second carrier, respectively, in a frequency domain; the target signaling is used to schedule wireless transmission on the first carrier, and the third signaling includes configuration information of the first wireless signal; a first QCL parameter is used for reception of the first wireless signal when the third signaling cannot indicate QCL parameters, the third signaling indicating QCL parameters being used for reception of the first wireless signal when the third signaling can indicate QCL parameters; the first QCL parameter is a first candidate QCL parameter when the first pool of time-frequency resources overlaps in the time domain with a first time window; the first QCL parameter is a second candidate QCL parameter when the first pool of time-frequency resources does not overlap in the time domain with a first time window; the first candidate QCL parameter is a QCL parameter of a first set of control resources, the first set of control resources being one of the sets of control resources associated with the portion of the first pool of time-frequency resources in the most recent one of the time slots of the first time window having a smallest set identification of control resources.

As one embodiment, the second candidate QCL parameter is the QCL parameter with the smallest identity for the data channel of the first carrier being activated.

For one embodiment, the first receiver 1001 receives a fourth signaling indicating the first time threshold.

As one embodiment, the third signaling may indicate the QCL parameter when the time interval between receiving the third signaling and receiving the first wireless signal is not less than the first time threshold and the third signaling indicates the QCL parameter.

As one embodiment, the first carrier is allocated to a primary serving cell and the second carrier is allocated to a secondary serving cell.

For one embodiment, the first receiver module 1001 includes the antenna 452, the receiver 454, the receive processor 456, and the multi-antenna receive processor 458 in embodiment 4.

For one embodiment, the first receiver module 1002 includes the antenna 452, the receiver 454, the receive processor 456, and the multi-antenna receive processor 458 in embodiment 4.

For one embodiment, the first receiver module 1001 includes at least one of the controller/processor 459, the memory 460, and the data source 467 of embodiment 4.

For one embodiment, the first receiver module 1002 includes at least one of the controller/processor 459, the memory 460, and the data source 467 of embodiment 4.

As an embodiment, the first receiver 1001 and the second receiver 1002 include an LDPC (Low Density Parity Check Code) decoder and a Polar (Polar) decoder, respectively.

Example 10

Embodiment 10 illustrates a block diagram of a processing apparatus used in a base station, as shown in fig. 10. In fig. 10, a processing apparatus 1100 in a base station is mainly composed of a first transmitter 1101 and a second transmitter 1102.

In embodiment 10, the first transmitter 1101 transmits first signaling and second signaling indicating first candidate QCL parameters and second candidate QCL parameters, respectively; the second transmitter 1102 transmits a third signaling, wherein the time-frequency resource occupied by the third signaling belongs to a second time-frequency resource pool; a first transmitter 1101 transmits a first wireless signal on the first carrier;

in embodiment 10, the second time-frequency resource pool belongs to a second carrier in the frequency domain; the third signaling comprises configuration information of the first wireless signal; a first QCL parameter is used for reception of the first wireless signal when the third signaling cannot indicate QCL parameters, the third signaling indicating QCL parameters being used for reception of the first wireless signal when the third signaling can indicate QCL parameters; the first QCL parameter is a first candidate QCL parameter when the first pool of time-frequency resources overlaps in the time domain with a first time window; when the first pool of time-frequency resources does not overlap in time domain with a first time window, the first QCL parameter is a second candidate QCL parameter; the first time-frequency resource pool belongs to the first carrier on a frequency domain; the first candidate QCL parameter is a QCL parameter of a first set of control resources, the first set of control resources being one of the sets of control resources associated with the portion of the first pool of time-frequency resources in the most recent one of the time slots of the first time window having a smallest set identification of control resources.

For one embodiment, the first transmitter 1101 receives a fourth signaling indicating the first time threshold.

In one embodiment, the first carrier is allocated to a primary serving cell and the second carrier is allocated to a secondary serving cell.

As an embodiment, the first transmitter 1101 includes { antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471} in embodiment 4.

For one embodiment, the first transmitter 1102 includes { antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471} in embodiment 4.

For one embodiment, the first transmitter 1101 includes at least one of a controller/processor 475 and a memory 476.

For one embodiment, the first transmitter 1102 includes at least one of a controller/processor 475 and a memory 476.

As an embodiment, said first transmitter 1101 and said first transmitter 1102 comprise an LDPC encoder and a Polar encoder, respectively.

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

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

Claims

1. User equipment configured for wireless communication, comprising:

the first receiver receives a first wireless signal on a first carrier;

2. The UE of claim 1, wherein the second candidate QCL parameters are QCL parameters for a second set of control resources, the second set of control resources being the set of control resources configured on the first carrier with a minimum set of control resource identification.

3. The UE of claim 1 or 2, wherein the second candidate QCL parameters are the QCL parameters with the smallest identity for the data channels of the first carrier that are activated.

4. The user equipment according to any of claims 1-3, wherein the first receiver receives fourth signaling, the fourth signaling indicating the first time threshold.

5. The UE of claim 4, wherein the third signaling is indicative of the QCL parameters when the time interval between receiving the third signaling and receiving the first wireless signal is not less than the first time threshold and the third signaling indicates the QCL parameters.

6. The user equipment as claimed in any of claims 1 to 5, wherein the first carrier is allocated to a primary serving cell and the second carrier is allocated to a secondary serving cell.

7. A base station apparatus used for wireless communication, comprising:

the first transmitter transmits a first wireless signal on a first carrier;

8. The base station device of claim 7, wherein the second candidate QCL parameters are QCL parameters for a second set of control resources, wherein the second set of control resources is the set of control resources configured on the first carrier with a minimum set of control resource identification.

9. The base station device of claim 7 or 8, wherein said second candidate QCL parameters are the QCL parameters with the smallest identity for the data channels of the first carrier that are activated.

10. Base station device according to any of claims 7 to 9, wherein said first transmitter transmits a fourth signaling indicating said first time threshold.

11. The base station device of any of claim 10, wherein the third signaling is indicative of the QCL parameter when the time interval between receiving the third signaling and receiving the first wireless signal is not less than the first time threshold and the third signaling indicates the QCL parameter.

12. The base station device according to any of claims 7 to 11, wherein the first carrier is allocated to a primary serving cell and the second carrier is allocated to a secondary serving cell.

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

receiving a first wireless signal on a first carrier;

14. The method in a user equipment according to claim 13,

the second candidate QCL parameter is a QCL parameter of a second set of control resources, the second set of control resources being a set of control resources configured on the first carrier with a minimum set of control resources identification.

15. The method in the user equipment of claim 13 or 14, wherein said second candidate QCL parameter is the QCL parameter with the smallest identity for the data channel of the first carrier being activated.

16. A method in a user equipment according to any of claims 13-15, characterized in that it comprises: receiving fourth signaling, the fourth signaling indicating the first time threshold.

17. The method in the user equipment of any of claim 16, wherein the third signaling is indicative of the QCL parameter when the time interval between receiving the third signaling and receiving the first wireless signal is not less than the first time threshold and the third signaling indicates the QCL parameter.

18. A method in a user equipment according to any of claims 13-17, wherein the first carrier is allocated to a primary serving cell and the second carrier is allocated to a secondary serving cell.

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

transmitting a first wireless signal on a first carrier;

20. The method in a base station device according to claim 19, wherein the second candidate QCL parameter is a QCL parameter of a second set of control resources, the second set of control resources being the set of control resources configured on the first carrier with the smallest control resource set identity.

21. The method in a base station equipment according to claim 19 or 20, wherein said second candidate QCL parameter is the QCL parameter with the smallest identity for the data channel of the first carrier being activated.

22. A method in a base station arrangement according to any of claims 19 to 21, comprising: transmitting fourth signaling, the fourth signaling indicating the first time threshold.

23. The method in a base station device according to any of claims 22, wherein the third signaling is indicative of QCL parameters when the time interval between receiving the third signaling and receiving the first wireless signal is not less than the first time threshold and the third signaling indicates QCL parameters.

24. Method in a base station device according to any of claims 19 to 23, characterised in that the first carrier is allocated to a primary serving cell and the second carrier is allocated to a secondary serving cell.