Abstract: A carrier aggregation system includes a TDD carrier and an FDD carrier, and a method for the carrier aggregation system includes: a terminal device receives downlink information by using a secondary component carrier; and the terminal device sends feedback information for the downlink information by using a primary component carrier. When the primary component carrier or the secondary component carrier is a TDD carrier, at least one first subframe that includes P consecutive sTTIs exists in the TDD carrier, and at least one sTTI that occupies two OFDM symbols exists in the P consecutive sTTIs, where P is an integer greater than 1. Embodiments of the present disclosure further provide a corresponding terminal device and network device.

Abstract: A communication apparatus acting as a baseband unit (BBU) or being applicable to a BBU, and having instructions for obtaining first coordination information to be sent to a second BBU, determining, based on preset link information, a transmission link corresponding to the second BBU, the transmission link including a first remote radio unit (RRU) and a second RRU, the first RRU belonging to the BBU, the second RRU belonging to the second BBU, and the first RRU and the second RRU being connected through a wired link, sending the first coordination information to the first RRU, sending indication information to the first RRU, the indication information indicating to the first RRU to send the first coordination information to the second RRU through the wired link, the indication information having an identifier of the second RRU.

Abstract: A communication apparatus acting as a baseband unit (BBU) or being applicable to a BBU, and having instructions for obtaining first coordination information to be sent to a second BBU, determining, based on preset link information, a transmission link corresponding to the second BBU, the transmission link including a first remote radio unit (RRU) and a second RRU, the first RRU belonging to the BBU, the second RRU belonging to the second BBU, and the first RRU and the second RRU being connected through a wired link, sending the first coordination information to the first RRU, sending indication information to the first RRU, the indication information indicating to the first RRU to send the first coordination information to the second RRU through the wired link, the indication information having an identifier of the second RRU.

Abstract: This application discloses a communication method for a carrier aggregation system. The carrier aggregation system is a carrier aggregation system including a TDD carrier and an FDD carrier, and method includes: A terminal device receives downlink information by using a secondary component carrier; and the terminal device sends feedback information for the downlink information by using a primary component carrier. When the primary component carrier or the secondary component carrier is a TDD carrier, at least one first subframe that includes P consecutive sTTIs exists in the TDD carrier, and at least one sTTI that occupies two OFDM symbols exists in the P sTTIs, where P is an integer greater than 1. Embodiments of the present disclosure further provide a corresponding terminal device and network device.

Abstract: This application discloses a quick acknowledgement reply method and apparatus, where the method includes the following steps: receiving, by an acknowledgement sending apparatus, a data frame sent by an acknowledgement receiving apparatus; and after successfully decoding the data frame, generating and replying with, by the acknowledgement sending apparatus, an acknowledgement ACK frame, where the ACK frame includes a physical layer part; and the physical layer part includes: a legacy short training field L-STF, a legacy long training field L-LTF, and identification information of a station. This application is advantageous in low overheads.

Abstract: Discloses is a backhaul transmission method for wireless communication, a controller, a base station, and a gateway. The method includes: sending, by a first base station, information about a backhaul requirement of the first base station to a controller; obtaining, by the first base station, information about a codebook from the controller, where the information about the codebook is determined based on the backhaul requirement of the first base station; and performing, by the first base station, backhaul transmission with a gateway by using the codebook. Information about a codebook used in backhaul transmission is determined based on a backhaul requirement of a base station, so that backhaul requirements of different base stations can be met, and a backhaul capacity of a system is increased.

Abstract: Embodiments of the present invention disclose a wireless backhaul connection establishment method and apparatus. According to the embodiments of the present invention, a first base station obtains a valid backhaul capability of a neighboring base station, where the neighboring base station is a base station that can perform wireless communication with the first base station, and the valid backhaul capability reflects a maximum capability of a base station to serve a newly-added backhaul service; the first base station selects an upstream base station from the neighboring base station according to the valid backhaul capability of the neighboring base station and a backhaul service requirement for the first base station, where the upstream base station is configured to provide a wireless backhaul relay service for the first base station; and the first base station establishes a wireless backhaul connection with the upstream base station.

Abstract: A service distribution obtaining method, a network side device, and a terminal are provided in this disclosure. The method includes: obtaining, by a network side device, measurement information of multiple terminals in a serving cell and an average service volume of each of the multiple terminals, and determining service distribution, where the measurement information includes first channel state values of channels between the multiple terminals and a primary cell, the primary cell refers to the serving cell or one of neighboring cells of the serving cell, the service distribution includes a first typical channel state value of each type of the first channel state values and a first service volume between a terminal set corresponding to each type of the first channel state values and the primary cell, and the first service volume is determined according to the average service volume of each terminal.

Abstract: The present invention provides a radio resource optimization and management method, a centralized controller, and a base station. In the method, the centralized controller determines a work status series and a work policy series of each cell during a first time period; and sends the work status series and the work policy series of each cell to each cell, so that each cell adjusts resources of this cell according to the work status series and the work policy series, thereby enhancing a network KPI at a large time granularity by means of distributed cell coordination while ensuring local KPI performance of each cell. In contrast with distributed coordination optimization in a single coordination state, the present invention provides a higher degree of freedom in terms of a time dimension, and therefore provides better performance in terms of a network KPI at a large time granularity.

Abstract: A method for allocating access and backhaul resources is provided, including: obtaining multiple coordinating sets in a network and a transmission mode corresponding to each coordinating set; determining, according to the multiple coordinating sets and the transmission mode corresponding to each coordinating set, an access and backhaul resource allocation manner corresponding to an optimal network access and backhaul joint utility; and instructing wireless access points in the network to use the access and backhaul resource allocation manner to transmit data to user terminals in the network. This ensures proper and flexible allocation of access and backhaul resources and improves system resource utilization.

Abstract: Embodiments of the present disclosure describe a resource allocation method and apparatus. In an embodiment, the method may include receiving, by a base station, a downlink signal interference value that is sent by at least one UE associated with the base station and capability information of the at least one UE. The method may also include determining, by the base station, a belonging type of the at least one UE according to the downlink signal interference value and the capability information, and determining a duplex mode of the at least one UE according to the belonging type. Furthermore, the method may include allocating, based on the duplex mode, a resource to the at least one UE, and then sending the resource to the UE.

Abstract: This application discloses a quick acknowledgement reply method and apparatus, where the method includes the following steps: receiving, by an acknowledgement sending apparatus, a data frame sent by an acknowledgement receiving apparatus; and after successfully decoding the data frame, generating and replying with, by the acknowledgement sending apparatus, an acknowledgement ACK frame, where the ACK frame includes a physical layer part; and the physical layer part includes: a legacy short training field L-STF, a legacy long training field L-LTF, and identification information of a station. This application is advantageous in low overheads.

Abstract: A method for determining a multi-point transmission resource includes: obtaining backhaul statuses of multiple cells participating in multi-point transmission, and determining available backhaul rates of the multiple cells according to the backhaul statuses of the multiple cells; obtaining available access resources of the multiple cells for multi-point transmission; and determining access resources of the multiple cells for multi-point transmission according to a type and a service requirement of multi-point transmission, and the available backhaul rates and the available access resources of the multiple cells for multi-point transmission. The method improves multi-point transmission efficiency.

Abstract: The present disclosure provides an access control method and apparatus, and a network device. The method includes: performing grid partitioning on a target cell covered by a wireless access point, to obtain multiple grids; grouping, based on a neighboring cell of the target cell, grids that satisfy a preset condition in the multiple grids into one or more interference clusters; calculating an access offset of each of the interference clusters; and sending, to a user in each interference cluster, an access offset of a corresponding interference cluster, so that the user selects a cell based on the access offset of the corresponding interference cluster. Grids of a target cell are grouped into interference clusters according to signal to interference plus noise ratios, and an access offset is set for each interference cluster, to ensure service quality and improve user experience.

Abstract: Discloses is a backhaul transmission method for wireless communication, a controller, a base station, and a gateway. The method includes: sending, by a first base station, information about a backhaul requirement of the first base station to a controller; obtaining, by the first base station, information about a codebook from the controller, where the information about the codebook is determined based on the backhaul requirement of the first base station; and performing, by the first base station, backhaul transmission with a gateway by using the codebook. Information about a codebook used in backhaul transmission is determined based on a backhaul requirement of a base station, so that backhaul requirements of different base stations can be met, and a backhaul capacity of a system is increased.

Abstract: The present invention discloses a resource allocation method and apparatus. The method includes: receiving, by a base station, a downlink signal interference value that is sent by at least one UE associated with the base station and capability information of the at least one UE; determining, by the base station, a belonging type of the at least one UE according to the downlink signal interference value and the capability information; determining a duplex mode of the at least one UE according to the belonging type; and allocating, based on the duplex mode, a resource to the at least one UE, and sending the resource to the UE, so as to resolve a problem that resource utilization is reduced or relatively large signaling overheads are caused because interference suppression after network densification cannot dynamically match a network change.

Abstract: A method for determining a multi-point transmission resource includes: obtaining backhaul statuses of multiple cells participating in multi-point transmission, and determining available backhaul rates of the multiple cells according to the backhaul statuses of the multiple cells; obtaining available access resources of the multiple cells for multi-point transmission; and determining access resources of the multiple cells for multi-point transmission according to a type and a service requirement of multi-point transmission, and the available backhaul rates and the available access resources of the multiple cells for multi-point transmission. The method improves multi-point transmission efficiency.

Abstract: A method for accessing to a mobile communication network, comprising: acquiring a session matching level for each cell, which is calculated based on a session type of a session initiated by a user terminal as needed, a session data rate available to the user terminal of each cell and load balance parameters of each cell; accessing to a cell selected according to the session matching level for each cell. Further, it also provides another method for accessing to a mobile communication network, and corresponding user terminal, network-side device and communication system.

Abstract: Embodiments of the present invention disclose a wireless backhaul connection establishment method and apparatus. According to the embodiments of the present invention, a first base station obtains a valid backhaul capability of a neighboring base station, where the neighboring base station is a base station that can perform wireless communication with the first base station, and the valid backhaul capability reflects a maximum capability of a base station to serve a newly-added backhaul service; the first base station selects an upstream base station from the neighboring base station according to the valid backhaul capability of the neighboring base station and a backhaul service requirement for the first base station, where the upstream base station is configured to provide a wireless backhaul relay service for the first base station; and the first base station establishes a wireless backhaul connection with the upstream base station.

Abstract: A method for allocating access and backhaul resources is provided, including: obtaining multiple coordinating sets in a network and a transmission mode corresponding to each coordinating set; determining, according to the multiple coordinating sets and the transmission mode corresponding to each coordinating set, an access and backhaul resource allocation manner corresponding to an optimal network access and backhaul joint utility; and instructing wireless access points in the network to use the access and backhaul resource allocation manner to transmit data to user terminals in the network. This ensures proper and flexible allocation of access and backhaul resources and improves system resource utilization.