76 results about "Single-frequency network" patented technology

A method and apparatus are provided, in which a higher layer configuration is received (2002), where the user equipment is configured with two timing reference signals for receiving a common communication having a same set of data from multiple signal sources. A downlink scheduling assignment including downlink control information is received (2004) in a control channel scheduling a physical downlink shared channel, wherein the downlink scheduling assignment comprises an indication of a transmission configuration indicator identifying two transmission configuration indicator states, which each indicate quasi-co-location information of a demodulation reference signal corresponding to the physical downlink shared channel relative to a respective one of the first and the second timing reference signals. The physical downlink shared channel is then received (2006) according to the downlink scheduling assignment including the downlink control information.

A method and apparatus are provided, in which a higher layer configuration is received (2002), where the user equipment is configured with two timing reference signals for receiving a common communication having a same set of data from multiple signal sources. A downlink scheduling assignment including downlink control information is received (2004) in a control channel scheduling a physical downlink shared channel, wherein the downlink scheduling assignment comprises an indication of a transmission configuration indicator identifying two transmission configuration indicator states, which each indicate quasi-co-location information of a demodulation reference signal corresponding to the physical downlink shared channel relative to a respective one of the first and the second timing reference signals. The physical downlink shared channel is then received (2006) according to the downlink scheduling assignment including the downlink control information.

This disclosure provides an uplink transmission control method and apparatus. The method includes: in a STxMP scenario where multiple uplink antenna panels simultaneously transmit a Physical Uplink Shared Channel (PUSCH) scheduled based on a single downlink control information (DCI), under a network scheduling of multiple transmit and receive points (TRP) single-frequency network (SFN) transmission mode, receiving transmission configuration information related to the Phase Tracking Reference Signal (PTRS) sent by network devices; for codebook-based PUSCH transmission, determining the actual PTRS transmission parameters for PUSCH transmission based on the PTRS-related transmission configuration information and preset protocol rules; and transmitting PTRS according to the SFN transmission mode at the transmission timing (TO) of PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets. The scheme provided by this disclosure can achieve enhanced indication of PTRS under SFN transmission, thereby supporting CPE estimation of terminal multi-antenna panels under codebook-based configuration in STxMP transmission, effectively improving the reliability and throughput of data transmission.

Embodiments of the present disclosure relate to a method and apparatus for demodulation reference signal (DMRS) ports and phase tracking reference signal (PTRS) ports in a single frequency network (SFN)-based physical uplink shared channel (PUSCH). A terminal device receives a PTRS-DMRS association indication from a network device. The indication includes a PTRS-DMRS association field having a first portion indicating a scheduled DMRS port and a second portion indicating a PTRS port associated with the DMRS port. Based on the indication, the terminal device can simultaneously transmit uplink signals to the network device in an SFN manner via multiple antenna panels. This enables stable and highly accurate SFN uplink transmission using the DMRS port and the corresponding PTRS port.

A reception method and apparatus for use in a multi-cell orthogonal frequency division multiple access (OFDMA) wireless system. In a unicast receive mode during a first receive time period, a first group of orthogonal frequency division multiplexing (OFDM) symbols is received by a mobile device from multiple of a plurality of antennas at a serving base station. In a single-frequency-network (SFN) receive mode during a second receive time period, a second group of OFDM symbols is received by the mobile device from one of a plurality of antennas at the serving base station. The transition between the first receive time period and the second receive time period occurs during a cyclic prefix or a cyclic postfix between OFDM symbols, and the plurality of antennas produce a first beam pattern during the unicast receive mode and a second beam pattern during the SFN receive mode.

Various solutions for connected-mode mobility enhancements with tiered radio resource management (RRM) are described. An apparatus may perform a first measurement based on a first downlink (DL) reference signal (RS) received from each of a source network node and a target network node. The first DL RS includes identification information of a single frequency network (SFN) area without identification information of any network node. Also, the apparatus may perform a second measurement based on a second DL RS received from each of the source network node and the target network node. The second DL RS includes identification information of the source network node or the target network node. Then, the apparatus may transmit a switching request including information of the target network node to the source network node based on the first measurement and the second measurement, and receive a switching command from the source network node.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive a unified transmission configuration indicator (TCI) indication indicating a first TCI state associated with a physical downlink shared channel (PDSCH) communication, wherein time resources associated with the PDSCH communication at least partially overlap with time resources associated with a control resource set (CORESET) associated with a second TCI state different from the first TCI state. The mobile station may prioritize reception of a physical downlink control channel (PDCCH) communication associated with the CORESET based at least in part on the second TCI state being different from the first TCI state. Numerous other aspects are described.

A wireless device may receive one or more configuration parameters indicating a single frequency network (SFN) scheme. The wireless device may further receive a command activating at least two transmission configuration indicator (TCI) states for a control resource set (coreset). The wireless device may monitor, via the coreset, downlink control channels based on the at least two active TCI states and determine a radio link quality based on the at least two active TCI states of the coreset, when the one or more configuration parameters indicate the SFN scheme. The wireless device may further transmit an uplink signal indicating the radio failure, when the radio link quality indicates a radio failure.

The present disclosure relates to a 5G large tower broadcast data transmission system, method and device, belonging to the technical field of data transmission, the method comprising: a first transmission network element, the first transmission network element is used for receiving the unidirectional service data broadcasted by the 5G large tower from the single frequency network output; a second transmission network element, the second transmission network element is unidirectional data transmission with the first transmission network element, the second transmission network element is used for receiving the unidirectional service data based on unidirectional static configuration; the unidirectional service data is output to the associated user end; wherein the unidirectional static configuration is constructed based on the specific configuration parameters output unidirectionally by the first transmission network element.

Methods, systems, and devices for wireless communications are described. A method for wireless communication may include receiving a single frequency networked composite reference signal (SFNed RS) at a first port of a user equipment (UE) and receiving a reference signal (RS) at a second port of the UE that is different than the first port of the UE. The method may also include performing channel estimation for at least one of the first port or the second port based at least in part on receiving the SFNed RS and the RS. A method for wireless communication may include transmitting a first portion of an SFNed RS from a first port of a first transmit / reception point to a UE and transmitting a downlink control information message to the UE that indicates at least one transmission configuration indicator state identifier that identifies the SFNed RS.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, using a first transmit / receive (Tx / Rx) chain, a low-power wake-up signal (LP-WUS) communication, wherein the LP-WUS communication is conveyed via a set of single frequency network (SFN)-type transmissions from a set of transmitters associated with a set of cells. The UE may communicate, using a second Tx / Rx chain, in one or more resources in connection with the LP-WUS. Numerous other aspects are described.

A base station may establish a cellular link with a user equipment (UE) according to a single frequency network scheme. The base station may then determine one or more control resource set (CORESET) transmission configuration indication (TCI) states and transmit signaling to configure the UE with the one or more CORESET TCI states. Additionally or alternatively, the one or more CORESET TCI states may be useable by the UE in performing communications with at least one of a first transmission reception point (TRP) and a second TRP associated with the cellular link with the cellular network.

A central unit (CU) transmits synchronization timing information for a multicast broadcast service (MBS) single frequency network (SFN) data transmission in a synchronous manner to multiple distributed units (DUs). The CU transmits the MBS SFN data transmission to the multiple DUs for synchronous transmission to one or more user equipments (UEs). A DU receives synchronization timing information for a MBS SFN data transmission in a synchronous manner with at least one additional DU. The DU transmits the MBS SFN data transmission with a timing based on the synchronization timing information.

A random access method and apparatus, a terminal, and a readable storage medium are provided. The method includes: selecting a target random access channel (RACH) resource associated with a first reference signal or a second reference signal; and using the target RACH resource to initiate random access, where the first reference signal is a single frequency network (SFN) specific reference signal, and the second reference signal is a cell / transmission reception point (cell / TRP) specific reference signal.

Various aspects of the present disclosure generally relate to wireless communication. Some aspects more specifically relate to a user equipment (UE) that transmits an indication of a preferred multi-UE cooperation scheme. In some examples, the UE can transmit the indication of the preferred multi-UE cooperation scheme via UE assistance information (UAI). The indication of the preferred multi-UE cooperation scheme can indicate one or more parameters, such as one or more additional UEs with which the UE supports cooperation and / or a preferred scheme type (e.g., single frequency network (SFN), transmission switching, coordinated multiple-input multiple-output (MIMO), and / or multi-transmission reception point (TRP), etc.).

According to an example implementation, a method for frequency offset reporting includes transmitting, by a first transceiver, a first tracking reference signal to a user device in a wireless communication system, transmitting, by a second transceiver, a second tracking reference signal to the user device, receiving, by the base station, a channel state information (CSI) reporting signal via an uplink channel, where the CSI reporting signal includes power estimation information. The method includes determining whether to pre-compensate a frequency of a downlink signal with frequency offset information based on the power estimation information, and transmitting, by at least one of the first transceiver or the second transceiver, the downlink signal with the pre-compensated frequency in response to the determination to pre-compensate the frequency of the downlink signal.

The embodiment of the present disclosure provides an uplink transmission control method and device, the method comprises: in a single downlink control information DCI scheduling based physical uplink shared channel PUSCH in a simultaneous transmission and multiple panel STxMP scenario, receiving transmission configuration information related to PTRS sent by a network device in a network scheduling multiple transmission and reception point TRP single frequency network SFN transmission mode; for non-codebook based PUSCH transmission, determining the actual sending parameters of the PTRS for PUSCH transmission based on the transmission configuration information related to the PTRS and the preset protocol rules, and sending the PTRS in the SFN transmission mode on the TO of the PUSCH corresponding to different antenna panels / TRP / beam TCI states / SRS resource sets. The scheme provided by the present disclosure can realize the enhanced indication of the SFN transmission of the PTRS, thereby supporting the CPE estimation of the terminal multi-antenna panel in the non-codebook based configuration under the SFN scheme in the STxMP transmission, so that the multi-point cooperative transmission is more effective, and the reliability and throughput of data transmission are effectively improved.

The invention provides a downlink resource allocation method, electronic equipment, a storage medium and a program product, relates to the technical field of communication, and is used for improving downlink transmission performance of a cell. The method comprises the following steps: under the condition that a first cell is in a long term evolution (LTE) state, distributing data symbols on a downlink subframe to a physical downlink shared channel (PDSCH) of the LTE; the data symbols are symbols used for transmitting user plane data in the subframe; and under the condition that the first cell is in a new air interface NR state, distributing a data symbol on a downlink subframe to a PDSCH (Physical Downlink Shared Channel) of the NR, and configuring the data symbol to be in a multimedia broadcast multicast service single frequency network MBSFN (Multimedia Broadcast Multicast Service Single Frequency Network) empty subframe format on an LTE (Long Term Evolution) side.

Various solutions for timing advance (TA) management in connected-mode mobility with tiered radio resource management (RRM) are described. An apparatus may perform a first measurement based on a first downlink (DL) reference signal (RS), and perform a second measurement based on a second DL RS. The first DL RS includes identification information of a single frequency network (SFN) area without identification information of any network node, while the second DL RS includes identification information of a source network node or a target network node. The apparatus may determine a DL reception time difference between the source and target network nodes. Then, the apparatus may transmit a switching request to the source network node based on the first and second measurements, and receive a switching command from the source network node. The switching request includes information of the target network node and the DL reception time difference.

An automated system and method for optimizing a single frequency network (SFN), such as a television broadcast network, that has network transmitters which simultaneously broadcast a same time-synchronized signal over a same frequency over a coverage area. In the system, remote monitoring stations are distributed in the coverage area. A network analyzer of each station is configured to measure time and amplitude measurements from each of the transmitters. A remote communication interface on each station transmits the time and amplitude measurements. A network communication interface requests and receives the transmitted time and amplitude measurements from he stations. The network server identifies one or more of the transmitters as a source of time-delay interference and self-heals to mitigate the interference, such as by applying one or more launch delays to the transmitters.

A single-frequency network, SFN, system comprises: at least two independently controlled SFN transmitters; a network entity being arranged for computing optimized SFN transmission parameters specifically for each of the at least two SFN transmitters; and one or more field probes arranged in the SFN and connected to the network entity via a network communication channel. The one or more field probes are arranged for measuring, preferably continuously, an SFN reception of signals transmitted by the at least two independently controlled SFN transmitters, producing field measurement data, and supplying the field measurement data to the network entity. The network entity is arranged for automatically calculating, as a function of the supplied field measurement data, at least one type of SFN transmission parameter specifically optimized for each of the at least two independently controlled SFN transmitters, in order to optimize the SFN reception of the signals transmitted by the at least two independently controlled SFN transmitters, and supplying the transmitter-specifically optimized SFN transmission parameters to each of the at least two independently controlled SFN transmitters.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive one or more unified transmission configuration indicator (TCI) state indications for coherent joint transmission operations with more than two unified TCI states per layer of a physical downlink shared channel (PDSCH), wherein the UE is configured for a single frequency network operation for a physical downlink control channel (PDCCH) that applies two TCI states to a control resource set that receives the PDCCH. The UE may select one or more unified TCI states for one or more physical downlink channel communications based at least in part on the one or more unified TCI state indications. The UE may receive the one or more physical downlink channel communications using the selected one or more unified TCI states. Numerous other aspects are described.

An apparatus comprising: means for obtaining, from a network device, precoding information related to at least one of: one or more physical uplink control channel transmissions from one or more antenna arrangements of the apparatus or one or more single frequency network or spatial division multiplexing based physical uplink shared channel transmissions from one or more antenna arrangements of the apparatus; means for determining, based on the precoding information, that one or more precoders associated with the one or more single frequency network or spatial division multiplexing based physical uplink shared channel transmissions are to be applied to one or more physical uplink control channel transmissions at the apparatus; and means for transmitting the one or more physical uplink control channel transmissions to the network device using the one or more precoders.

The application provides a 5G broadcast dynamic single frequency network configuration method based on interference prediction, comprising the following steps: integrating a frequency scanning unit in a 5G broadcast base station; submitting the collected spectrum interference state data to a broadcast control unit based on the link between base stations; dynamically deciding based on the spectrum scanning result and the 5G single frequency network frequency planning, for judging whether the edge terminal user can receive and demodulate the broadcast signal based on the current frequency for 5G broadcast in the most extreme case; informing the 5G broadcast base station of the current single frequency network decision by the broadcast control unit, performing spectrum allocation and resource allocation according to the frequency scheduling instruction after the 5G broadcast base station receives the frequency scheduling instruction; and performing 5G broadcast signal broadcasting on the determined frequency band by the 5G broadcast base station. The application realizes the dynamic configuration of single frequency band single frequency network and multi frequency band single frequency network based on distributed spectrum scanning data, and realizes the accurate coverage of the broadcast area.

A communication method and a communication apparatus are disclosed, related to the communication field. The method includes: A terminal sends data to a network device based on first information sent by the network device. The first information indicates a transmission mode and a plurality of precoding matrices corresponding to a plurality of antenna panels. The transmission mode is a first transmission mode or a second transmission mode. An antenna port set used by each antenna panel of the terminal in the first transmission mode or the second transmission mode is a part of an antenna port set used by the terminal in a third transmission mode. The first transmission mode is an SDM mode, the second transmission mode is an SFN mode, and the third transmission mode is an sTRP mode.

This disclosure provides a communication method and apparatus. In the method, the first network device receives a first position from a second network device, where the first position is a position of one or more subframes occupied by first information; determines a first offset and configures a multicast-broadcast single-frequency network (MBSFN) subframe, where the first offset is for determining a second position, the second position is a position obtained by offsetting the first position by the first offset, the first range is a position that supports configuration of the MBSFN subframe, and a position of the MBSFN subframe includes the second position; and sends the first offset and first MBSFN configuration information to the second network device. According to the method, the second network device may send the first information on the MBSFN subframe, to avoid time-frequency resource conflicts between the first information and a cell reference signal (CRS).

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, configuration information that indicates one or more physical uplink control channel (PUCCH) resources that support a single frequency network (SFN) mode. The UE may receive, from the network node, beam information that indicates a plurality of transmission configuration indication (TCI) states to apply to transmit a PUCCH using a PUCCH resource associated with a PUCCH format. The UE may determine a transmission mode in which to transmit the PUCCH based at least in part on the beam information, wherein the transmission mode includes one or more of the SFN mode, a time division multiplexing (TDM) mode, or a single TCI state mode. The UE may transmit, to the network node, the PUCCH using the transmission mode. Numerous other aspects are described.