Abstract: A method of data a communication includes: determining, by a first terminal, an idle channel, and transmitting a data handshake request carrying interruption information on the idle channel, wherein the interruption information at least includes a call indication of an interrupted traffic channel; receiving a data handshake response transmitted by a repeater; when a data handshake response is of a type allowing interruption, jumping to a traffic channel designated by the repeater according to a channel jumping indication included in the data handshake response; and when determining that a second terminal occupying the traffic channel to make a call interrupts the call and releases a resource of the traffic channel, initiating a call on the traffic channel. The embodiments of the present invention can interrupt the call of the transmitting terminal and release the channel resource, and have strong flexibility and high efficiency.

Abstract: A communication method for a mobile station comprises: monitoring broadcast information sent by a currently-residing repeater, wherein the broadcast information carries state information of repeaters within a site and call related information, and a main repeater of the mobile station belongs to the site; acquiring a state of the main repeater according to the broadcast information; determining whether there is a call belonging to the mobile station according to the call related information; and when determining that there is a call belonging to the mobile station, performing handover, according to the call related information, to a repeater corresponding to the call belonging to the mobile station to access the call.

Abstract: Methods for abnormality protection on an extended trunked radio system and associated repeater stations are provided. A method includes: monitoring, by a present repeater, in real time whether there occurs a communication abnormality on a repeater in a local site; if there is detected a communication abnormality on a repeater, determining whether the abnormal repeater is a free repeater; and if the abnormal repeater is a non-free repeater, updating and broadcasting the state information of the abnormal repeater.

Abstract: A method, an apparatus and a system for co-frequency networking based on a trunking service are provided. The method includes: acquiring a multi-layer data flow generated through a layer mapping process; pre-coding the multi-layer data flow with a preset multi-port pre-coding method to obtain encoded data of each of the transmission trunking ports, where the multi-port pre-coding method matches with the preset plurality of transmission trunking ports; performing resource mapping on the encoded data and the trunking-specific reference signal of each of the transmission trunking ports to obtain transmission data of the transmission trunking port; and transmitting the transmission data of each of the transmission trunking ports to reception trunking ports which match with the transmission trunking port using the transmission trunking port.

Abstract: Disclosed are a communication method based on a time division multiple access communication system, and a terminal. The method comprises: receiving, by a communication terminal, an embedded signalling frame, conducting embedded type information parsing on the embedded signalling frame to obtain an embedded signalling and control information; in accordance with the control information, caching, by the communication terminal, the embedded signalling to corresponding caching regions; and when each corresponding caching region has already been cached with the embedded signalling, conducting embedded type signalling decoding, by the communication terminal, on the embedded signalling in all the caching regions so as to obtain a control signalling. The technical solution of the present invention can shorten the terminal access duration of the time division multiple access communication system, thereby improving the access performance of the time division multiple access communication system.

Abstract: A communication establishment method, mobile station and transfer device based on transfer mode. The method comprises: a first mobile station sends to the transfer device control information including the slot used by the first mobile station and the control signalings corresponding to different service types, in order that the transfer device determines a transfer slot and gets ready for communication according to the control signalings; and the first mobile station communicates with a target mobile station group through the transfer slot. The transfer device can accurately acquire the slot used by the mobile station, thus reducing communication error rate and solving the problem that the transfer device can not identify the slot in the use of the mobile station and can not support delayed access. Meanwhile, the technical solution can be compatible with existing transfer device and mobile station.

Abstract: A method, a terminal, and a system for a cluster terminal to feedback downlink channel information are provided. In the method, a cluster terminal in an idle state configures a group call context and measures a current downlink channel in a preset period, after receiving a group call signaling sent by a base station. The cluster terminal sends an RRC connection request carrying a measurement result to the base station after determining that the measurement result meets a preset report triggering condition. The base station modifies an air interface resource configuration when determining that a preset condition for modifying the air interface resource configuration is met according to the measurement result and sends an instruction carrying the modified air interface resource configuration to the cluster terminal. The cluster terminal receives group call data according to the instruction after receiving the instruction.

Abstract: Provided are a method, terminal and system for reducing power consumption of a cluster terminal in a broadband cluster system. The method includes: receiving, by the cluster terminal, a group call configuration instruction transmitted by a base station; configuring a group call context, a discontinuous reception instruction and group call resources by the cluster terminal based on the group call configuration instruction; and executing the discontinuous reception instruction by the cluster terminal; sensing a physical channel by the cluster terminal when it is determined that an active phase of the discontinuous reception instruction is entered; and stopping sensing the physical channel by the cluster terminal when it is determined that a dormant phase of the discontinuous reception instruction is entered.

Abstract: The embodiments of the present invention disclose a call processing method and device. The call processing method comprises: sending, by a repeater of the first site, a first call establishment request to a repeater of the second site according to a call request initiated by a first terminal, the first call establishment request comprising an identification of the second terminal; determining, by the repeater of the first site, whether a second call establishment request is received before a call establishment response sent by the repeater of the second site is received, the second call establishment request being sent by the repeater of the second site according to a call request initiated by the second terminal; and if yes, sending, by the repeater of the first site, a call collision notification to the first terminal to notify the first terminal to delay the call.

Abstract: A service access control method, a service access control apparatus and a cluster terminal for a broadband cluster system are provided. The method includes: determining a service type of a to-be-accessed service, the service type including a service with a low delay requirement, determining whether a current subframe meets a preset access condition for a service with a low delay requirement when it is determined that the to-be-accessed service is the service with the low delay requirement, and completing access of the to-be-accessed service if the current subframe meets the preset access condition for the service with the low delay requirement.

Abstract: A portable wireless signal transfer system, method and terminal. The method comprises: a first terminal receiving a wireless signal; the first terminal demodulating the wireless signal to obtain burst data and a timeslot number; the first terminal sending the burst data and the timeslot number to a second terminal; the second terminal receiving the burst data and the timeslot number sent by the first terminal; the second terminal performing signal modulation on the burst data; and the second terminal transmitting a signal obtained after the signal modulation in a corresponding timeslot according to the timeslot number. The wireless signal transfer function of a conventional transfer stage can be achieved using two portable terminals, which have the advantages of being easy to carry, economic, flexible, etc., and the application requirements of a conventional communication system are fully adapted.

Abstract: A call collision processing method, a terminal and a repeater are disclosed according to the disclosure. The method includes: sending, by a terminal, an access request to a repeater, where the access request includes a preset number of access request bursts; monitoring, by the terminal, a channel state of the repeater, and determining, by the terminal, whether the repeater transfers the access request burst within a preset period of monitoring time; sending, by the terminal, subsequent bursts to the repeater if the repeater successively transfers the access request bursts of the terminal for at least two times within the preset period of monitoring time; and stopping sending, by the terminal, the subsequent bursts to the repeater if the repeater successively transfers access request bursts of another terminal for at least two times within the period of the preset monitoring time.

Abstract: A method, an apparatus and a system for co-frequency networking based on a trunking service are provided. The method includes: acquiring a multi-layer data flow generated through a layer mapping process; pre-coding the multi-layer data flow with a preset multi-port pre-coding method to obtain encoded data of each of the transmission trunking ports, where the multi-port pre-coding method matches with the preset plurality of transmission trunking ports; performing resource mapping on the encoded data and the trunking-specific reference signal of each of the transmission trunking ports to obtain transmission data of the transmission trunking port; and transmitting the transmission data of each of the transmission trunking ports to reception trunking ports which match with the transmission trunking port using the transmission trunking port.

Abstract: An acoustic feedback detection method and device. According to the method, whether acoustic feedback occurs is determined based on a frequency characteristic of an acoustic feedback signal. Specifically, a judgment value is determined using a power peak value and an average peak value, and it is determined whether acoustic feedback occurs in a signal based on a magnitude of the judgment value and a duration of the power peak value. In this case, whether acoustic feedback occurs can be determined based on the frequency characteristic of the signal.

Abstract: A method, a terminal and a system for a cluster terminal to feedback downlink channel information are provided. In the method, a cluster terminal in an idle state configures a group call context and measures a current downlink channel in a preset period, after a group call signaling sent by a base station is received; sends a RRC connection request carrying a measurement result to the base station after determining that the measurement result meets a preset report triggering condition, where the base station modifies an air interface resource configuration when determining that a preset condition for modifying the air interface resource configuration is met according to the measurement result and sends an instruction carrying the modified air interface resource configuration to the cluster terminal; and receives group call data according to the instruction after the instruction is received.

Abstract: A wireless access control method and device are provided. A method applied to a sender terminal includes: generating, by a terminal, an authentication code according to a protocol negotiated with a receiver when sending control-type data, combining, by the terminal, control-type data, the authentication code and a corresponding CRC check code to generate a message, and sending, by the terminal, the message to the receiver, such that the receiver can perform a CRC check on the received message, generates an authentication code according to the negotiated protocol if the CRC check is successful, determines whether the generated authentication code is the same as the received authentication code, if so, analyzes the received control-type data, and if not, discards the received control-type data.

Abstract: Provided are a method, terminal and system for reducing power consumption of a cluster terminal in a broadband cluster system. The method includes: receiving, by the cluster terminal, a group call configuration instruction transmitted by a base station; configuring a group call context, a discontinuous reception instruction and group call resources by the cluster terminal based on the group call configuration instruction; and executing the discontinuous reception instruction by the cluster terminal; sensing a physical channel by the cluster terminal when it is determined that an active phase of the discontinuous reception instruction is entered; and stopping sensing the physical channel by the cluster terminal when it is determined that a dormant phase of the discontinuous reception instruction is entered.

Abstract: A service access control method, a service access control apparatus and a cluster terminal for a broadband cluster system are provided. The method includes: determining a service type of a to-be-accessed service, the service type including a service with a low delay requirement, determining whether a current subframe meets a preset access condition for a service with a low delay requirement when it is determined that the to-be-accessed service is the service with the low delay requirement, and completing access of the to-be-accessed service if the current subframe meets the preset access condition for the service with the low delay requirement.