Abstract:
The embodiments provide a communications device and a discontinuous transmission method, The communications device includes: a first determining module, configured to: when a dedicated channel DCH carries a signaling radio bearer SRB, determine a position in which a current timeslot is located in a transmission interval of the SRB, where the transmission interval of the SRB is greater than or equal to 40 ms, The communications device also includes a second determining module, configured to: when the position in which the current timeslot is located meets a preset condition, and a radio frame in which the current timeslot is located does not include the SRB or a DPCH transport block, determine not to send or not to receive a dedicated physical control channel DPCCH and/or a dedicated physical data channel DPDCH in the current timeslot.
Abstract:
Provided are a method and an apparatus for canceling interference, to resolve a problem that performance of interference cancellation is poor because accuracy of equalizer coefficients obtained by a CMTS through calculation is not sufficiently high. A specific solution is as follows: (101) A CMTS calculates L equalizer coefficients of an L-tap filter according to a preamble sequence by using an adaptive algorithm, and performs adaptive equalization on a received signal by using the L equalizer coefficients, where L is a positive integer greater than 24; and (102) the CMTS selects K equalizer coefficients from the L equalizer coefficients, and sends a ranging response message carrying the K equalizer coefficients to a cable modem CM, so that the CM performs pre-equalization on a to-be-sent signal according to the received K equalizer coefficients, where K is a positive integer less than or equal to L.
Abstract:
Embodiments of the present invention disclose a power control method and apparatus, and relate to the field of communications technologies. The method includes: determining, according to a power offset parameter configured by a network side, a first power offset value used by a control channel corresponding to a first subframe, and determining a second power offset value used by a control channel corresponding to a second subframe; feeding back the control channel corresponding to the first subframe to the network side by using the first power offset value; and feeding back the control channel corresponding to the second subframe to the network side by using the second power offset value. The present invention is applicable to a multiflow transmission scenario in which a UE feeds back control information to a network side.
Abstract:
Embodiments of the present invention provide a method, a base station, and a user equipment for activating or deactivating a carrier. The method includes the following: A base station determines to activate or deactivate at least one secondary carrier used to communication with a user equipment and transmits a High Speed Shared Control Channel HS-SCCH order to the user equipment, where the HS-SCCH order carries indication information used to indicate activation or deactivation of the at least one secondary carrier. In the embodiments of the present invention, a user equipment is capable of correctly activating or deactivating a carrier.
Abstract:
Embodiments of the present invention provide a dedicated pilot decoding method and a user equipment. The method includes: determining a set of a dedicated pilot's channelization codes; receiving downlink control information sent by a base station; determining, according to the downlink control information, a dedicated pilot's channelization codes from the set of a dedicated pilot's channelization codes; and using the dedicated pilot's channelization codes to decode a dedicated pilot. The embodiments of the present invention may implement determining of a dedicated pilot's channelization codes and decoding of a dedicated pilot.
Abstract:
Embodiments of the present invention provide a method, a base station, and a user equipment for activating or deactivating a carrier. The method includes the following: A base station determines to activate or deactivate at least one secondary carrier used to communication with a user equipment and transmits a High Speed Shared Control Channel HS-SCCH order to the user equipment, where the HS-SCCH order carries indication information used to indicate activation or deactivation of the at least one secondary carrier. In the embodiments of the present invention, a user equipment is capable of correctly activating or deactivating a carrier.
Abstract:
Embodiments of this application provide a communication method and an apparatus. The method includes: receiving first data; sending second data through a plurality of antenna ports, where the second data is obtained by performing, by a network device, distribution matching, forward error correction encoding, and modulation on the first data based on a bit mapping relationship; and sending indication information to a terminal device, where the indication information is used by the terminal device to determine the bit mapping relationship, and the bit mapping relationship is used by the terminal device to perform distribution dematching on the second data to obtain an estimated value of the first data.
Abstract:
Embodiments of this application provide a non-coherent data transmission method and a communication apparatus. In the method, a transmit end device determines, in a first constellation, a first constellation point corresponding to first to-be-modulated bits, where the first constellation point corresponds to P first symbols, P=M*N, M is a positive integer, and N is an integer greater than 1; and sends the P first symbols on N resource units by using M antenna ports, or sends P second symbols determined based on the P first symbols, and foregoes sending demodulation reference signals of the P first symbols or the P second symbols. In the method, a constellation is designed, and each constellation point in the constellation corresponds to a plurality of resource units so that data can be transmitted with no need to transmit a reference signal, and only the data needs to be transmitted.
Abstract:
The present disclosure relates to the field of communications technologies, and discloses a channel quality information determining method, an apparatus, and a system. The method may include: a terminal device obtains a configured TBS, and/or determines channel quality information of each of K segments of frequency domain resources based on the configured TBS and/or a time domain resource range. A frequency domain resource of the terminal device may be divided into N segments, where both N and K are integers greater than or equal to 1, and K is less than or equal to N. In some embodiments, the configured TBS may be fully considered when the channel quality information is determined, so that a network device properly may determine, based on the channel quality information, a frequency domain resource used to transmit a data packet.
Abstract:
Embodiments of this application provide a method for processing information bits in a wireless communication network. A communication device receives a radio resource control (RRC) signaling, wherein the RRC signaling comprises time window information and time unit format information, wherein the time window information comprises a hybrid automatic repeat request (HARQ) time sequence K1 set, wherein K1 is a time relationship between a time unit of a physical downlink shared channel (PDSCH) and a time unit of a physical uplink control channel (PUCCH), or wherein the K1 is a time relationship between a time unit of a (PDSCH) and a time unit of a physical uplink shared channel (PUSCH). The device determines HARQ feedback information based on the time window information and the time unit format information and sends the HARQ feedback information.