Certain aspects of the present disclosure provide techniques for indicating capability of a user equipment (UE) to support multiple sounding reference signals (SRSs) with a single subframe, with at least one of frequency hopping, different bandwidths, or antenna switching for the multiple SRSs in the same subframe.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first sounding reference signal (SRS) configuration, wherein the first SRS configuration indicates a number of antenna ports on which an SRS is to be transmitted. The UE may determine that the number of antenna ports indicated by the first SRS configuration exceeds an antenna capability of the UE. The UE may transmit one or more SRSs using a second SRS configuration based at least in part on determining that the first SRS configuration exceeds the antenna capability of the UE. Numerous other aspects are described.

An electronic device may include a processor, a plurality of transceivers, and a memory in communication with the processor, the memory comprising executable instructions that, when executed by the processor, cause the electronic device to perform functions of while a first transceiver is active, identifying, from among the plurality of transceivers and based on signal quality, current temperature, and cooling capacity of each of the plurality of transceivers, a second transceiver to handover transmission of signal to from the first transceiver, and handing over transmission of the signal from the first transceiver to the identified second transceiver.

Disclosed is a relay method including: receiving, as input, respective reception signals by two receive antennas, the reception signals each including a reception signal resulting from multiplexing respective transmission signals transmitted by two transmission antennas in a first frequency band; performing frequency conversion on the reception signal received by one of the receive antennas so as to obtain a signal of a third frequency band; and performing frequency multiplexing on the signal having the third frequency band and the reception signal received by the other of the receive antennas.

Apparatus and methods for radio frequency front-ends are provided. In certain configurations, a radio frequency front-end includes ultrahigh band (UHB) transmit and receive modules employed for both transmission and reception of UHB signals via at least two primary antennas and at least two diversity antennas, thereby supporting both 4×4 receive MIMO and 4×4 transmit MIMO with respect to one or more UHB frequency bands, such as Band 42, Band 43, and/or Band 48. The radio frequency front-end can operate with carrier aggregation using one or more UHB carrier frequencies to provide flexibility in widening bandwidth for uplink and/or downlink communications.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an activation command to activate multiple spatial relations for a physical uplink control channel (PUCCH) resource that is to be used for transmitting repetitions of a communication in multiple slots. The UE may transmit the repetitions in the PUCCH resource in the multiple slots using the multiple spatial relations. Numerous other aspects are provided.

This application relates to the field of communications technologies, and discloses a modulation method and apparatus, a communications device, and a readable storage medium. The method includes: obtaining a bitstream to be transmitted; and determining, based on a bit in the bitstream and a mapping relationship, a forwarding pattern and a manner of modulating a forwarding phase in the forwarding pattern, where the mapping relationship is used to indicate a mapping relationship between the bit, the forwarding pattern, and a target index, and is used to indicate a mapping relationship between the bit and the phase modulation manner; and the target index includes at least one of the following: an index of a transmit antenna, an index of a receive antenna, and an index of an area after division of an array of assistance nodes.

Aspects of the techniques and apparatuses described herein provide an intra slot antenna diversity scheme that a user equipment (UE) may use to transmit uplink communications while mitigating antenna imbalance. In an intra slot antenna diversity scheme, a UE transmits an uplink communication by transmitting a first portion of the uplink transmission in a first part of a slot using a first subset of antennas and a second portion of the uplink communication in a second part of the slot using a second subset of antennas. A decision to apply an intra slot antenna diversity scheme may be made by a network node such as a base station. Numerous other aspects are described.

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may perform uplink communications on a first radio frequency spectrum band using a first transceiver and a first antenna. The first transceiver may have a first capability configuration. The UE may receive an assignment for uplink communications on a second radio frequency spectrum band and couple a second transceiver to the first antenna to perform the uplink communications on the first radio frequency spectrum band. The spectrum transceiver may have a second capability configuration that is different from the first capability configuration with respect to at least the second radio frequency spectrum band. The UE may switch the first transceiver to a second antenna for the uplink communications on the second radio frequency spectrum band.

If a portable device receives a request signal from a control device that requires a response from the portable device, a first response signal is transmitted from the portable device during a common period defined in all portable devices. Thus, in a case where there is no portable device which enables wireless communication with the control device, a value of received signal strength indication of a wireless signal which is received from the portable device by the control device is very small and becomes smaller than the threshold value during a period in the common period. In this case, the control device suspends reception processing of causing a signal to be transmitted from the plurality of portable devices subsequently to the first response signal.