89 results about "Coreset" patented technology

A method and apparatus for determining a control resource set for system information in a wireless communication system is provided. A user equipment (UE) receives a configuration of control resource set (CORESET) for remaining system information (RMSI) via a synchronization signal (SS) block from a network, and determines the control resource set for the RMSI according to the configuration. The SS block may include a physical broadcast channel (PBCH). A time and frequency location of a common search space (CSS) for the RMSI may be aligned with the SS block by at least one of time division multiplexing (TDM) or frequency division multiplexing (FDM).

An apparatus may receive a master information block and a synchronization signal (SS) block on a PBCH. The MIB may indicate an allocation associated with a CORESET. The apparatus may receive remaining minimum system information (RMSI) configuration information carried in the CORESET based on the allocation associated with the CORESET. The apparatus may determine a position associated with a downlink data channel based on a first value indicated by one of the MIB or the SS block in the PBCH and based on a second value indicated by the RMSI configuration information. The apparatus may receive data carried on the downlink data channel based on the position associated with the downlink data channel.

The invention discloses a transmission method of transmission configuration indication (TCI), network side equipment and terminal equipment The method comprises the following steps: selecting at leastone TCI state from a plurality of configured candidate TCI states to establish a TCI state table from Link type, a channel, an RS type or a CORESET, wherein the TCI state table comprises a corresponding relation between a TCI state and an RS set, or comprises a corresponding relation between the TCI state and the RS set and a quasi-co-location QCL type, or comprises a corresponding relation between the TCI state and a channel type; and sending the TCI state table and the link type, the channel, the RS type or the CORESET identifier corresponding to the TCI state table. According to the invention, the corresponding TCI state table is established based on the link type, the channel, the RS type or the CORESET, so that the TCI state table can be configured according to the requirements of the application scene to meet the TCI state indication requirements under different scenes.

Systems, methods, apparatuses and computer-readable storage media for configuring a transmission between a base station and a user equipment (UE) equipment are disclosed. In embodiments, a plurality of control resource sets (Coresets) may be determined, and the plurality of Coresets may be grouped into one or more Corset groups. In embodiments, a Coreset group may include a first Coreset and a second Coreset. The first Coreset may provide a common search space, and the second Coreset may provide a UE specific search space. The one or more Coreset groups may be used to configure a transmission of data to the UE. The first Coreset and the second Coreset for a particular Coreset group may be configured to enable narrow band monitoring of the Coreset group by the UE.

Provided are a method for receiving a signal in a control resource set (CORESET) of a wireless communication system and a user equipment (UE) using the method. The method includes receiving a radio resource control (RRC) signal including a plurality of transmission configuration indicator (TCI) states, receiving a medium access control (MAC) control element (CE) informing one of the plurality of TCI states and receiving a signal in the CORESET based on the one TCI state. When the CORESET is CORESET #0, the one TCI state is related with a reference signal associated with a synchronization signal / physical broadcast channel block (SSB).

The invention provides a power control method, device and system. The power control method comprises the steps of obtaining association of at least one piece of airspace resource information and a power control parameter; acquiring airspace resource information of uplink transmission; determining a power control parameter of the uplink transmission according to the spatial domain resource information of the uplink transmission and the association of the at least one piece of spatial domain resource information and the power control parameter, wherein the airspace resource information comprisesat least one kind of CORESET information, TRP information and PUCCH resource information.

Methods, systems, and devices for synchronization signal (SS) block and control resource set (coreset) multiplexing are described. Generally, the described techniques allow a base station to indicate, to a user equipment (UE), the location of a coreset including control information that may be used by the UE. Specifically, a base station may transmit an indication of a coreset configuration and an indication of a type of multiplexing used to multiplex the coreset with an SS block in the SS block to a UE. Accordingly, the UE may receive the SS block, and the UE may determine the location of the coreset based on the coreset configuration and the indication of the type of multiplexing used to multiplex the coreset with the SS block. The UE may then process the control information included in the coreset to identify the location of a data channel including additional system information.

The invention provides a method and a device for indicating a control channel. The method comprises the following steps: network equipment sends information used for indicating N control resource sets(CORESETs) and M transmission configuration indication states (TCI state) respectively corresponding to each CORESET in the N CORESETs to terminal equipment, the M TCI states are in one-to-one association with the M search space groups; each search space group comprises one or more search spaces; wherein the CORESET and the search space are used for the terminal device to determine transmission resources of a control channel, the TCI state is used for the terminal device to determine quasi co-location (QCL) information of the control channel, N is an integer greater than or equal to 1, and Mis an integer greater than or equal to 2. One CORESET is configured to correspond to a plurality of TCI states, so that the flexibility of resource scheduling can be effectively improved.

Control channel decoding can consume a significant amount of power with respect to the device's total power battery lifetime, as well as being a factor in the complexity of device. Aspects of a method, apparatus, and computer-readable medium are presented herein that provide a solution to the problem of control channel decoding complexity and power requirements by improving the manner in which control channels are decoded. An apparatus configures an initial CORESET having a reduced bandwidth corresponding to a bandwidth capability of a first UE type. The reduced bandwidth having a narrower frequency range than a bandwidth capability of a second UE type. The apparatus may configure a first CORESET for a first UE having a first bandwidth capability and a second CORESET for a second UE having a second bandwidth capability. The apparatus transmits control channel(s) in the configured CORESET(s).

The embodiment of the invention provides a downlink channel receiving method, a downlink channel sending method, a terminal and a base station. The method comprises the following steps of: obtaining asample; determining a TCI state of a downlink control channel, wherein the TCI state is the TCI state of a control resource set CORESET used by the terminal on the original BWP last time under the condition that the terminal is switched back to the original bandwidth part BWP, and the downlink control channel is sent on the CORESET of the original BWP; and receiving the downlink control channel according to the TCI state. According to the embodiment of the invention, the reliability and accuracy of data transmission can be improved.

The present disclosure relates to an information configuration method and apparatus, a method and apparatus for determining a time-frequency location, a base station, user equipment, and a computer readable storage medium. The information configuration apparatus includes: generating first configuration information, wherein the first configuration information is used to indicate a time-frequency location of a synchronous broadcast block SSB corresponding to a common control resource set CORESET of the current remaining system information RMSI; and sending the first configuration information touser equipment UE. The information configuration method and apparatus can configure a flexible time-frequency location for SSB by generating and sending the first configuration information indicatingthe time-frequency location of the SSB corresponding to the CORESET of the current RMSI to the UE, and enable the UE to determine the time-frequency location of the SSB corresponding to the CORESET ofthe current RMSI according to the location of the CORESET of the current RMSI and the received first configuration information.

The invention discloses a beam failure processing method, a terminal and network equipment, and the method comprises the steps: transmitting a beam failure recovery request to the network equipment under the condition that a beam failure event happens on an active BWP (Bandwidth Part); using a control resource set CORESET-BFR for beam failure recovery in target downlink BWP to receives response information fed back by the network equipment according to the beam failure recovery request, wherein the target downlink BWP corresponds to at least two BWPs, and the at least two BWPs comprise an active BWP. According to the invention, the number of the target downlink BWPs configured with the CORESET-BFR is smaller than the configuration number of the downlink BWPs of the terminal, so that the number of CORESETs used in a normal communication process is increased, and enough transmission resources for normal communication are ensured.

A BS for handling CSSs comprises at least one storage device for storing instructions and at least one processing circuit coupled to the at least one storage device. The at least one processing circuit is configured to execute the instructions stored in the at least one storage device. The instructions comprise transmitting a first signaling for configuring a first group CSS on a first CORESET, to the first communication device; transmitting a second signaling for configuring a second group CSS on a second CORESET, to the second communication device; transmitting a third signaling for configuring the first group CSS on the first CORESET, to the second communication device; transmitting a first DCI via the first group CSS to the first communication device and the second communication device; and transmitting a second DCI to the second communication device via the second group CSS.

The embodiment of the invention provides a method and apparatus for determining beam failure detection reference signal BFD RS resources. The method is applied to user side equipment, and comprises the following steps: when BFD RS resources used for performing beam failure detection reference signal BFD RS measurement are not configured, determining the BFD RS resources according to a transmissionconfiguration indication (TCI) state of a control resource set CORESET. According to the embodiments of the present invention, when the user side device is not configured with the BFD RS resource forperforming the BFD RS measurement, the BFD RS resource can be determined according to the TCI state of the CORESET, thereby facilitating the user side device to perform the beam failure detection andthe beam failure recovery.

The present invention relates to an information indicating method and device, a method and device of searching RMSI of CORESET, a base station, user equipment, and a computer readable storage medium.The information indicating method includes the steps: adding time-frequency indication information which is configured for CORESET of RMSI (remaining system information) in PBCH (Physical Broadcast Channel) of SSB (Synchronization Signal Block); if the time-frequency indication information indicates time division multiplexing of CORESET of RMSI and SSB, according to the current frequency band, SCSof SSB and SCS of CORESET of RMSI, inquiring the pre-stored corresponding relationship, and obtaining a minimum set of RB (Resource Block) deviation values of the extended resource block, corresponding to the current frequency band; selecting an RB deviation value from the obtained minimum set of the extended RB deviation values, and adding the deviation index corresponding to the selected RB deviation value into the time-frequency indication information; and transmitting the SSB carrying the time-frequency indication information to the UE in a beam scanning manner. The information indicatingmethod increases flexibility of configuration.

The invention provides a downlink physical control channel detecting method applied to a user terminal in a new wireless NR system. The method comprises the following steps of: determining available aggregation levels according to the total number of control channel elements (CCE) in a control resource set CORESET occupied by a physical downlink control channel (PDCCH); determining the number of candidate sets corresponding to the available aggregation levels according to candidate set selection rules corresponding to search space types; selecting each of the available aggregation levels and the number of the candidate sets corresponding to the available aggregation levels, and performing PDCCH blind detection until the blind detection succeeds; and obtaining downlink control information (DCI) corresponding to the aggregation levels and the number of the candidate sets in the blind detection. The downlink physical control channel detecting method and device are easy to implement, support flexible and diverse configuration of the NR system, and achieve a better detection effect with lower complexity.

The embodiment of the invention provides a quasi-co-location information configuration method, network equipment and user equipment. The method comprises the following steps of: configuring or determining transmission configuration indication (TCI) state information of a control resource set (CORESET) # 0 or a search space associated with the CORESET # 0. The embodiments of the present invention can solve the problem that the understanding of CORESET # 0 by a network device and a user equipment is inconsistent.

The invention discloses a transmission method and device for a downlink control channel. The transmission method for a downlink control channel includes the steps: a terminal receives configuration information sent by a base station device, wherein the configuration information includes control resource set CORESET grouping information configured for the terminal by the base station device in thedownlink control channel monitoring occasion, and PDCCH (physical downlink control channel) candidate grouping information in at least one CORESET; when the configuration information includes the CORESET grouping information, the terminal determines at least one set of CORESET from the configuration information, and detects and receives at most one DCI (Downlink Control Information) from each of the at least one set of CORESET according to the specific DCI format expected by the terminal; and when the configuration information includes PDCCH candidate grouping information in the at least one CORESET, the terminal determines at least one group of PDCCH candidate from the configuration information, and detects and receives at most one DCI from each group of PDCCH candidate in the at least one group of PDCCH candidate according to the specific DCI format desired by the terminal.

The present invention relates to a frequency domain information indicating method and apparatus for CORESET (common control resource set) of RMSI (remaining system information), a method and apparatusfor searching CORESET of RMSI, a base station, user equipment, and a computer readable storage medium. The frequency domain information indicating method of CORESET of RMSI includes the steps: addingindication information to a physical broadcast channel PBCH of a synchronous broadcast block SSB, wherein the indication information includes first indication information and the first indication information is used to indicate time division multiplexing or frequency division multiplexing of the CORESET of the RMSI, carrying the indication information, to the user equipment UE in a beam scanningmanner. The frequency domain information indicating method of CORESET of RMSI can use as few bits as possible to indicate the frequency domain information of the CORESET of the RMSI.

The present invention relates to a method and apparatus for obtaining a CORESET (common control resource set) time-frequency resource location of RMSI (remaining system information), a method and apparatus for indicating a CORESET time-frequency resource location of RMSI, user equipment, a base station, and a computer readable storage medium. The method for obtaining a CORESET time-frequency resource location of RMSI includes the steps: receiving a synchronization signal sent from the base station, and determining a synchronization signal block corresponding to the synchronization signal; acquiring a physical broadcast channel PBCH of the synchronization signal block, wherein the PBCH carries time domain information and frequency domain information corresponding to the CORESET of the RMSI;and according to the time domain information and the frequency domain information corresponding to the CORESET of the RMSI, acquiring the CORESET time-frequency resource location corresponding to theRMSI. The method for obtaining a CORESET time-frequency resource location of RMSI enables the UE to acquire the CORESET time-frequency resource location corresponding to the RMSI, and the implementation mode is simple.

The invention discloses a resource sharing method of PDSCH and PDCCH in an NR system, and belongs to the technical field of mobile communication. The method comprises the first step that the ID of UEin RRC CONNECTED and the index are corresponding one to one by a gNB to form a mapping table, and all UE is notified of the mapping table; the second step that the gNB adopts a bit mapping manner to notify the UE of the currently scheduled condition of each UE by means of signaling dynamically; the third step that the UE obtains the index of the currently scheduled UE according to the signaling inthe second step, infers the ID of the UE scheduled by the gNB currently according to the mapping table obtained in the first step, and calculates search space in which DCI exists through combinationof the slot number and the CORESET serial number; and the fourth step that during resource mapping, the UE avoids time frequency resources corresponding to the search space to realize the resource sharing of PDCCH and PDSCH. According to the method, the compromise between the resource utilization rate and the signaling complexity can be realized, and the method can be widely applied to indicate the internal idle resource of CORESET of different sizes.

The embodiment of the invention provides a method and apparatus for beam failure recovery, and the method comprises the steps: monitoring a physical downlink control channel scrambled by a cell wireless network temporary identifier on a first control channel resource set CORESET of beam failure recovery after a beam failure event or a beam failure recovery event is triggered; and / or monitoring a physical downlink control channel scrambled by the cell wireless network temporary identifier on the second CORESET; wherein the resource corresponding to the first CORESET is different from the resource corresponding to the second CORESET.

The invention discloses a method for determining physical uplink control channel (PUCCH) resources, a terminal device and a network device, which are used for implicitly indicating more PUCCH resources through fields which are limited in bit number and are used for indicating the PUCCH resources. The method comprises: the terminal device determining PUCCH resources corresponding to downlink control signaling DCI according to at least one kind of information, wherein the at least one kind of information comprises one or more of the following combinations, a CORESET index where the DCI is located, a searching spatial index, a symbol index where downlink control information is carried in DCI; a monitoring symbol moitoringSymbolsWithinSlot parameter in a time slot in the searching space wherethe DCI is located, and an initial control channel element (CCE) index of a physical downlink control channel (PDCCH) where the DCI is located; and sending the PUCCH on the PUCCH resource. According to the embodiments of the present invention, more PUCCH resources can be implicitly indicated without increasing the bits of the ARI field in the DCI, thereby increasing the flexibility in the use process.

A transmitter, such as a base station, identifies a potential collision between a first set of resources configured for a CORESET for a receiver and a second set of resources configured for a PT-RS for the receiver. The apparatus may determine whether colliding resources in the CORESET are configured / used for a control transmission or a data transmission. The apparatus punctures the PT-RS based on whether the colliding resources in the CORESET are configured / used for the control transmission (e.g., PDCCH). For example, the apparatus may puncture the PT-RS only for resource blocks of the CORESET colliding with the control transmission without puncturing the PT-RS over an entire set of the colliding resources configured for the CORESET. A receiver may similarly identify potential collisions and determine whether PT-RS will be punctured based on whether the colliding resources in the CORESET are configured / used for a control transmission or a data transmission.

The invention provides a secondary cell beam failure recovery method, a terminal and a base station, and solves the problem that the terminal cannot realize a beam failure recovery process on a secondary cell. The method comprises the following steps: sending a random access request on an uplink carrier of a secondary cell; and receiving a random access response sent by the base station accordingto the random access request on a downlink control resource set CORESET configured by the base station. According to the recovery method provided by the embodiment of the invention, a beam failure recovery process of the terminal on the SCell of the secondary cell under carrier aggregation CA can be realized, so that the terminal correctly completes uplink and downlink beam identification and matching on the secondary cell, the terminal can normally work on the secondary cell, and reasonable utilization of uplink and downlink resources can also be realized.

The invention provides an information transmission method and device, first equipment and second equipment, and the method comprises the steps: sending a beam failure recovery (BFR) request to the second equipment in a time slot N, and executing a preset receiving scheme for control information on a first control resource set CORESET from the time slot N + K; wherein N is an integer greater than or equal to 0, and K is an integer greater than or equal to 0. According to the scheme, a beam failure recovery (BFR) request is sent to second equipment in the time slot N, and a preset receiving scheme is executed on control information on a first control resource set CORESET from a time slot N + K, wherein N is an integer greater than or equal to 0, and K is an integer greater than or equal to 0. In this way, the situation that the system cannot work normally or the system performance is reduced due to behavior mismatching of the base station and the terminal UE can be avoided to a certain extent. The problem that the system performance is reduced due to the fact that the sending and receiving of the control information on the existing CORESET are not defined after the UE monitors the beam failure and reports the BFR request is solved.

The invention provides a resource monitoring method, a terminal and a base station, and solves a problem that how to monitor a CORESET does not have a related scheme when the terminal is newly configured with the CORESET. The method comprises the following steps: receiving control resource set CORESET configuration information sent by a base station, wherein the CORESET configuration information indicates CORESET; determining a target TCI state used for monitoring the CORESET according to a predefined transmission configuration indication (TCI) state or a first downlink media access control layer control element (MAC) CE sent by the base station; monitoring the CORESET according to the target TCI state. According to the method, the problem of how to monitor the CORESET when the terminal isnewly configured with one CORESET is solved, the target TCI state used for monitoring the CORESET can be flexibly changed, and higher flexibility is achieved in the aspect of resource configuration.

The embodiment of the invention provides a PDCCH monitoring method and device, user equipment and a storage medium. The method comprises the following steps: enabling at least two search spaces to exist at the PDCCH monitoring moments of UE, wherein at least two search spaces are associated with at least two CORESETs, and if the UE is not configured with a CORESET index pool, or the UE is configured with a first CORESET set with a CORESET index pool value of 0 and a second CORESET set with a CORESET index pool value of 1; and enabling the UE to monitor the PDCCH in the first type of CORESET and the second type of CORESET, wherein the quasi co-location type D attributes of the first type of CORESET and the second type of CORESET are different. According to the embodiment of the invention, the PDCCH needing to be received can be monitored in the CORESETs of at least two different quasi-co-location type D attributes associated with at least two search spaces.

The embodiments of the present invention provide an information transmitting method, an information receiving method and corresponding devices. According to the information transmitting method and theinformation receiving method, when a network device sends a schedule to the control channel and data channel of a target terminal in the same transmission time unit, reference signals are transmittedon a preset frequency resource on the subsequent modulation symbol of a modulation symbol where the control channel is located, and the data channel is transmitted on a frequency resource allocated to the target terminal, so that the target terminal can receive the reference signals and the data channel at corresponding locations, or the network device generates indication information used for indicating that the data of the target terminal and reference signals used for demodulating the data are transmitted in the CORESET of the control channel, and sends the indication information to the target terminal through the control channel, so that the target terminal can receive the indication information and receive the reference signals for demodulating the data according to the indication information. Therefore, the reference signals sent separately on the data channel can be saved, a resource utilization rate can be improved, and the transmission reliability of URLLC (ultra reliable andlow latency communication) services can be improved.