WO2015096037A1 - Trigger signal sending and receiving method, device, and system - Google Patents

Abstract

The embodiments of the present invention provide a trigger signal sending and receiving method, device, and system, relating to the field of communications and used for triggering, without requiring the aid of a macro base station, a transmission point to provide service to a user equipment (UE), thus enhancing user experience. The method comprises: the UE detecting a discovery signal sent by the transmission point (101); said UE obtaining trigger signal configuration information according to said discovery signal (102); according to said trigger signal configuration information, said UE sending said trigger signal to said transmission point (103); said trigger signal carrying first information; said first information comprising at least one of: reception power information of said discovery signal, and transmission power information, power offset information, and first timing offset information of said trigger signal. The present invention is suitable for triggering a micro base station or a pico base station.

Description

 Method, device and system for transmitting and receiving trigger signal

 The present invention relates to the field of communications, and in particular, to a method and device for transmitting and receiving a trigger signal.

Background technique

 With the development of communication networks, in the LTE (Long Term Evolution) system, the heterogeneous network architecture has gradually become the mainstream architecture. In a heterogeneous network architecture, multiple micro base stations or pico base stations are deployed within the coverage of one macro base station. In this way, the macro base station can provide real-time data services and radio resource control information for the UE (User Equipment), and provide high-speed data services for the UE through the micro base station or the pico base station. Since the coverage of each micro base station or pico base station is small, the number of UEs within the coverage of each micro base station or pico base station is limited, and even within the coverage of the micro base station or the pico base station, no UE exists. When the micro base station or the pico base station has no serving UE, the micro base station or the pico base station can be turned off, so that interference with other micro base stations or pico base stations can be reduced.

 In the prior art, when the micro base station or the pico base station is turned off, the method of turning on the micro base station or the pico base station is as follows: the macro base station configures the closed micro base station or the pico base station to broadcast the DRS (Discovered Reference Signal) in a long period. And triggering the UE to measure the closed micro base station or the pico base station based on the DRS, and report the measurement result to the macro base station, so that the macro base station determines whether to turn on the micro base station or the pico base station according to the measurement result.

 In the process of implementing the above-mentioned micro base station to be turned off, it is necessary to participate by the macro base station. When the UE is not in the coverage of the macro base station, the closed micro base station cannot be re-enabled to provide services to the UE in time, thereby reducing the user experience.

Summary of the invention

The embodiments of the present invention provide a method, a device, and a system for transmitting and receiving a trigger signal, which enable the base station to provide services for the UE without the assistance of the macro base station, thereby improving the user experience. In order to achieve the above object, embodiments of the present invention use the following technical solutions:

 In a first aspect, an embodiment of the present invention provides a method for transmitting a trigger signal, including: a user equipment UE detects a discovery signal sent by a transmission point; and the UE acquires configuration information of a trigger signal according to the discovery signal; The triggering signal is configured to send the triggering signal to the transmission point, where the triggering signal carries the first information; the first information includes: the received power information of the discovery signal, the At least one of transmit power information, power offset information, and first timing offset information of the trigger signal; the power offset is between the transmit power of the trigger signal and the transmit power of the discovery signal Offset value; the first timing offset information refers to a time interval between the UE receiving the discovery signal and transmitting the trigger signal.

 In a first possible implementation manner of the first aspect, in a case that the first information includes: the received power information of the discovery signal, the UE is configured according to the configuration information of the trigger signal to the Before the transmitting point sends the trigger signal, the method further includes: acquiring, by the UE, the received power information of the discovery signal according to the discovery signal.

 With reference to the first aspect, or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first information includes: the first timing offset information And before the sending, by the UE, the trigger signal to the transmission point according to the configuration information of the trigger signal, the method further includes: a time when the UE receives the discovery signal and a time when the trigger signal is sent, Determining the first timing offset information.

 With reference to the first aspect, or the first or second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first information includes: the power offset information In the case that the UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal, the method further includes: sending power information of the UE according to the discovery signal, and sending the trigger signal The power information is used to determine the power offset information. The discovery signal carries the transmit power information of the discovery signal.

With reference to the first aspect, or any one of the first to the third possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, Before the configuration information of the trigger signal is obtained, the method further includes: the UE acquiring configuration information of the discovery signal; and determining, by the UE, a correspondence between configuration information of the discovery signal and configuration information of the trigger signal And the acquiring, by the UE, the configuration information of the trigger signal according to the discovery signal, that: the UE acquires configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship.

 With reference to the first aspect, or any one of the first to the fourth possible implementation manners of the first aspect, in the fifth possible implementation manner of the first aspect, the trigger signal includes: a trigger reference signal or an uplink data packet signal.

 With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the configuration information of the trigger signal in a case that the trigger signal includes: the trigger reference signal The method includes: a candidate sequence and/or a time-frequency resource; where the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: a modulation coding mode, a payload size, and at least a time-frequency resource. One.

 With the sixth possible implementation of the first aspect, in a seventh possible implementation manner of the foregoing aspect, before the acquiring, by the UE, the configuration information of the trigger signal according to the discovery signal, the method further includes: Obtaining, according to the discovery signal, the transmit power information of the discovery signal; the UE determining a path loss according to the transmit power information of the discovery signal and the received power information of the discovery signal; Obtaining the configuration information of the trigger signal includes: determining, by the UE, the sending power information of the sending trigger signal according to the path loss, where the configuration information of the trigger signal further includes: sending power information of the trigger signal.

With reference to the first aspect, or any one of the first to the seventh possible implementation manners of the first aspect, in an eighth possible implementation manner of the first aspect, the configuration information of the UE according to the trigger signal, Before transmitting the trigger signal to the transmission point, the method further includes: acquiring, by the UE, transmission power information of the discovery signal according to the discovery signal; and sending, by the UE, the transmission power information of the discovery signal and the discovery The received power information of the signal is used to determine the path loss; the UE determines the transmit power information of the transmit trigger signal according to the path loss; and the UE according to the configuration information of the trigger signal The transmitting, by the transmission point, the triggering signal includes: sending, by the UE, the trigger signal to the transmission point according to the configuration information of the trigger signal and the sending power information of the trigger signal.

 With reference to the first aspect, or any one of the first to eighth possible implementation manners of the first aspect, in the ninth possible implementation manner of the first aspect, the discovery signal further carries a state of the transmission point Information, the status information indicating whether the transmission point can be triggered by the UE by sending the trigger signal; the UE sending the trigger signal to the transmission point according to the configuration information of the trigger signal The method includes: when the status information indicates that the transmission point is triggered by the UE by sending the trigger signal, the UE sends the trigger to the transmission point according to the configuration information of the trigger signal. signal.

 With reference to the first aspect, or any one of the first to the ninth possible implementation manners of the first aspect, in the tenth possible implementation manner of the first aspect, the discovery signal includes: the discovery reference signal or the downlink data packet signal.

 With reference to the tenth possible implementation manner of the foregoing aspect, in the eleventh possible implementation manner of the first aspect, the configuration of the discovery signal, where the discovery signal includes: the discovery reference signal The information includes: a candidate sequence and/or a time-frequency resource; where the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: a modulation and coding mode, a payload size, and a time-frequency resource. At least one.

 With reference to the first aspect, or any one of the first to eleventh possible implementation manners of the first aspect, in the twelfth possible implementation manner of the first aspect, the configuration of the UE according to the trigger signal After the sending the trigger signal to the transmission point, the method further includes: receiving, by the UE, a response message of the trigger signal sent by the transmission point.

In a second aspect, an embodiment of the present invention provides a method for receiving a trigger signal, including: a transmission point determining configuration information of a discovery signal, and transmitting the discovery signal to a user equipment UE according to configuration information of the discovery signal; Determining the configuration information of the trigger signal, and receiving the trigger signal sent by the UE according to the configuration information of the trigger signal; wherein the trigger signal carries the first information; the first information includes: At least one of received power information of the discovery signal, transmission power information of the trigger signal, power offset information, and first timing offset information; the power offset refers to transmission of the trigger signal An offset value between the power and the transmit power of the discovery signal; the first timing offset information is a time interval between the UE receiving the discovery signal and transmitting the trigger signal; Obtaining the first information in the trigger signal; when the transmission point is in a sleep state, the transmission point is switched from a sleep state to an active state according to the first information; and/or; When the transmission point is in an active state, the transmission point increases the first transmission power according to the first information; wherein, the first transmission power is power used when the transmission point sends a common signal.

 In a first possible implementation manner of the second aspect, in the case that the first information includes: the received power information of the discovery signal, the transmission point is, according to the first information, the transmission point is The switching between the dormant state and the active state includes: determining, by the transmission point, a path loss between the transmission point and the UE according to the received power information of the discovery signal and the transmit power information of the discovery signal; According to a path loss between the transmission point and the UE, the transmission point is switched from a dormant state to an active state; and/or, the transmission point increases the first transmit power according to the first information. The transmission point determines a path loss between the transmission point and the UE according to the received power information of the discovery signal and the transmission power information of the discovery signal; the transmission point is according to the transmission point The path loss between the UE and the UE is increased by the first transmit power.

With reference to the second aspect, in a second possible implementation manner of the second aspect, in a case that the first information includes: sending power information of the trigger signal, the transmission point is according to the first information, The switching of the transmission point from the dormant state to the active state includes: determining, by the transmission point, the transmission point according to the transmit power information of the trigger signal and the received power information of the trigger signal acquired when the trigger signal is received And a path loss between the UE and the UE, the transmission point is switched from a sleep state to an active state according to a path loss between the transmission point and the UE; and/or, the transmission point is according to The first information is increased by the first information, and the first transmission power is: the transmission power information of the transmission point according to the trigger signal, and the touch acquired when the trigger signal is received Transmitting received power information, determining a path loss between the transmission point and the UE; the transmission point increases the first transmission power according to a path loss between the transmission point and the UE.

 With reference to the second aspect, in a third possible implementation manner of the second aspect, in a case that the first information includes: the power offset information, the transmission point is according to the first information, The switching of the transmission point from the dormant state to the active state includes: the transmission point determining, according to the power offset information, and the transmit power information of the discovery signal, the transmit power information of the trigger signal; a transmission power information of the trigger signal, and received power information of the trigger signal acquired when the trigger signal is received, determining a path loss between the transmission point and the UE; the transmission point is according to the transmission a path loss between the point and the UE, the transmission point is switched from a dormant state to an active state; and/or, the transmitting point amplifies the first transmit power according to the first information, including: the transmitting Determining, according to the power offset information, and the transmit power information of the discovery signal, transmit power information of the trigger signal; Sending power information of the signal, and receiving power information of the trigger signal acquired when the trigger signal is received, determining a path loss between the transmission point and the UE; the transmission point is according to the transmission point and The path loss between the UEs increases the first transmit power.

With reference to the second aspect, in a fourth possible implementation manner of the second aspect, in the case that the first information includes: first timing offset information, the transmission point is according to the first information, The switching of the transmission point from the dormant state to the active state includes: determining, by the transmission point, the transmission point and the location according to the sending moment of the discovery signal, the first timing offset information, and the receiving moment of receiving the trigger signal Transmitting a distance between the UEs; the transmission point is switched from a dormant state to an active state according to a transmission distance between the transmission point and the UE; and/or, the transmission point is according to the The first transmission power is increased by the information: the transmission point determines the transmission point according to the transmission time of the discovery signal, the first timing offset information, and the reception time of receiving the trigger signal. a transmission distance between the UEs; the transmission point increases the first transmission power according to a transmission distance between the transmission point and the UE. With reference to the second aspect, or any one of the first to the fourth possible implementation manners of the second aspect, in the fifth possible implementation manner of the second aspect, the discovery signal carries the transmit power information of the discovery signal .

 With reference to the second aspect, or any one of the first to fifth possible implementation manners of the second aspect, in a sixth possible implementation manner of the second aspect, the discovery signal carries status information of the transmission point And the status information indicates whether the transmission point can be triggered by the UE by sending the trigger signal.

 With reference to the second aspect, or any one of the first to the sixth possible implementation manners of the second aspect, in the seventh possible implementation manner of the second aspect, before the transmission point determines the configuration information of the trigger signal, The transmission point determines that the configuration information of the discovery signal and the configuration information of the trigger signal have a corresponding relationship; the transmission point determines the configuration information of the trigger signal, and the method includes: the transmission point is according to the discovery The configuration information of the signal, I. and the corresponding relationship determine configuration information of the trigger signal.

 With reference to the second aspect, or any one of the first to the seventh possible implementation manners of the second aspect, in the eighth possible implementation manner of the second aspect, the triggering signal includes: triggering a reference signal or an uplink data packet signal.

 In conjunction with the eighth possible implementation of the second aspect, in a ninth possible implementation manner of the second aspect, the configuration information of the trigger signal in a case where the trigger signal includes: the trigger reference signal The method includes: a candidate sequence and/or a time-frequency resource; where the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: a modulation coding mode, a payload size, and at least a time-frequency resource. One.

 With reference to the second aspect, or the first to the ninth possible implementation manners of the second aspect, in the tenth possible implementation manner of the second aspect, the discovery signal includes: discovering a reference signal or a downlink data packet signal.

With reference to the tenth possible implementation manner of the second aspect, in an eleventh possible implementation manner of the second aspect, in the case that the discovery signal includes: the discovery reference signal, the configuration of the discovery signal The information includes: a candidate sequence and/or a time-frequency resource; where the discovery signal includes: the downlink data packet signal, the discovery signal The configuration information of the number includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 With reference to the second aspect, or any one of the first to eleventh possible implementation manners of the second aspect, in the twelfth possible implementation manner of the second aspect, After the configuration information receives the trigger signal sent by the UE, the method further includes: sending, by the transmission point, a response message of the trigger signal to the UE.

 In a third aspect, the embodiment of the present invention provides a user equipment (UE), including: a detecting unit, configured to detect a discovery signal sent by a transmission point, and an acquiring unit, configured to acquire a trigger signal according to the discovery signal detected by the detecting unit. And the sending unit, configured to send the trigger signal to the transmission point according to the configuration information of the trigger signal acquired by the acquiring unit, where the trigger signal carries first information; The first information includes: at least one of received power information of the discovery signal, transmission power information of the trigger signal, power offset information, and first timing offset information; An offset value between a transmit power of the trigger signal and a transmit power of the discovery signal; the first timing offset information is a time interval between the UE receiving the discovery signal and transmitting the trigger signal.

 In a first possible implementation manner of the third aspect, the acquiring unit is further configured to: when the first information includes: the received power information of the discovery signal, obtain the location according to the discovery signal The received power information of the discovery signal.

 With reference to the third aspect, or the first possible implementation manner of the third aspect, in the second possible implementation manner of the third aspect, the acquiring unit is further configured to: In the case of the first timing offset information, the first timing offset information is determined according to the time when the discovery signal is received and the time when the trigger signal is transmitted.

With reference to the third aspect, or the first or second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the acquiring unit is specifically configured to include, in the first information And the power offset information is determined according to the transmit power information of the discovery signal and the transmit power information of the trigger signal; wherein the discovery signal carries Discovery signal Send power information.

 With the third aspect, or any one of the first to the third possible implementation manners of the third aspect, the fourth possible implementation manner of the third aspect, And a determining unit, configured to determine a correspondence between configuration information of the discovery signal and configuration information of the trigger signal; the acquiring unit is specifically configured to use configuration information according to the discovery signal And the corresponding relationship determined by the determining unit, acquiring configuration information of the trigger signal.

 With reference to the third aspect, or any one of the first to the fourth possible implementation manners of the third aspect, in the fifth possible implementation manner of the third aspect, the triggering signal includes: triggering a reference signal or an uplink data packet signal.

 With reference to the fifth possible implementation manner of the third aspect, in a sixth possible implementation manner of the third aspect, the configuration information of the trigger signal in the case that the trigger signal includes: the trigger reference signal The method includes: a candidate sequence and/or a time-frequency resource; where the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: a modulation coding mode, a payload size, and at least a time-frequency resource. One.

 With the sixth possible implementation of the third aspect, in a seventh possible implementation manner of the third aspect, the acquiring unit is further configured to acquire, according to the sending power information of the discovery signal, the acquiring unit, Specifically, the method is further configured to determine a path loss according to the obtained transmit power information of the discovery signal and the received power information of the discovery signal, where the acquiring unit is further configured to determine, according to the path loss, transmit power information of the sending trigger signal. The configuration information of the trigger signal further includes: sending power information of the trigger signal.

With the third aspect, or any one of the first to the seventh possible implementation manners of the third aspect, in the eighth possible implementation manner of the third aspect, the acquiring unit is further configured to use the discovery signal Obtaining the transmission power information of the discovery signal, where the acquiring unit is configured to determine a path loss according to the obtained transmission power information of the discovery signal and the received power information of the discovery signal, where the acquiring unit is further And determining, according to the path loss, determining transmit power information of sending a trigger signal; And the unit is configured to send the trigger signal to the transmission point according to the configuration information of the trigger signal acquired by the acquiring unit and the sending power information of the trigger signal.

 With reference to the third aspect, or any one of the first to the eighth possible implementation manners of the third aspect, in the ninth possible implementation manner of the third aspect, the discovery signal further carries a state of the transmission point Information, the status information indicating whether the transmission point can be triggered by the sending unit by sending the trigger signal; the sending unit is specifically configured to indicate, in the status information, that the transmission point can be passed When the trigger signal is sent to trigger, the trigger signal is sent to the transmission point according to the configuration information of the trigger signal.

 With reference to the third aspect, or any one of the first to the ninth possible implementation manners of the third aspect, in the tenth possible implementation manner of the third aspect, the discovery signal includes: discovering a reference signal or a downlink data packet signal.

 With reference to the tenth possible implementation manner of the third aspect, in an eleventh possible implementation manner of the foregoing aspect, the configuration of the discovery signal, where the discovery signal includes: the discovery reference signal The information includes: a candidate sequence and/or a time-frequency resource; where the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: a modulation and coding mode, a payload size, and a time-frequency resource. At least one.

 With reference to the third aspect, or the first to eleventh possible implementation manners of the third aspect, in a twelfth possible implementation manner of the third aspect, A response message of the trigger signal sent by the transmission point.

In a fourth aspect, an embodiment of the present invention provides a transmission point, including: a determining unit, configured to determine configuration information of a discovery signal, and a sending unit, configured to send, according to configuration information of the discovery signal determined by the determining unit, to a user The device UE sends the discovery signal; the determining unit is further configured to determine configuration information of the trigger signal; the receiving unit is configured to receive, according to the configuration information of the trigger signal determined by the determining unit, the trigger signal sent by the UE And the first information includes: the received power information of the discovery signal, the transmit power information of the trigger signal, the power offset information, and the first timing offset. At least one of the information; The power offset refers to an offset value between the transmit power of the trigger signal and the transmit power of the discovery signal; the first timing offset information refers to the UE receiving the discovery signal and transmitting the trigger a time interval between the signals; an obtaining unit, configured to acquire the first information from the trigger signal; and a processing unit, configured to: when the transmission point is in a dormant state, the first acquired according to the acquiring unit The information is used to switch the transmission point from the dormant state to the active state; and/or the processing unit is configured to: when the transmission point is in an active state, adjust the first information acquired according to the acquiring unit a transmit power; wherein the first transmit power is power used by the transmission point when transmitting a common signal.

 In a first possible implementation manner of the fourth aspect, the acquiring unit is specifically configured to: according to the received power information of the discovery signal, the received power according to the discovery signal Information, and the transmission power information of the discovery signal, determining a path loss between the transmission point and the UE; the processing unit is specifically configured to use the transmission point and the UE determined according to the acquiring unit a path loss between the transmission state and the active state; and/or the processing unit is specifically configured to determine a path between the transmission point and the UE according to the acquiring unit Loss, increase the first transmit power.

 With reference to the fourth aspect, in a second possible implementation manner of the fourth aspect, the acquiring unit is specifically configured to: when the first information includes: sending power information of the trigger signal, according to the a transmission power information of the trigger signal, and received power information of the trigger signal obtained when the trigger signal is received, determining a path loss between the transmission point and the UE; Determining, by the obtaining unit, a path loss between the transmission point and the UE, switching the transmission point from a dormant state to an active state; and/or the processing unit is further configured to be used according to the acquiring unit Determining a path loss between the transmission point and the UE, and increasing the first transmission power.

With reference to the fourth aspect, in a third possible implementation manner of the fourth aspect, the acquiring unit is specifically configured to: when the first information includes: the power offset information, according to the power The offset information, and the transmit power information of the discovery signal, determining transmit power information of the trigger signal; Determining a path loss between the transmission point and the UE according to the transmit power information of the trigger signal and the received power information of the trigger signal obtained when the trigger signal is received; And the switching point is switched from the dormant state to the active state according to the path loss between the transmission point and the UE determined by the acquiring unit; and/or the processing unit is further configured to be used according to the Determining a path loss between the transmission point and the UE determined by the acquiring unit, and increasing the first transmission power.

 With reference to the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the acquiring unit is specifically configured to: when the first information includes: first timing offset information, according to the discovery signal The transmission timing, the first timing offset information, and the reception timing of receiving the trigger signal, determining a transmission distance between the transmission point and the UE; the processing unit is specifically configured to be used according to the acquiring unit Determining a transmission distance between the transmission point and the UE, switching the transmission point from a dormant state to an active state; and/or, the processing unit is further configured to be determined according to the acquiring unit Transmitting the transmission distance between the transmission point and the UE, and increasing the first transmission power.

 With reference to the fourth aspect, or any one of the first to the fourth possible implementation manners of the fourth aspect, in the fifth possible implementation manner of the fourth aspect, the discovery signal carries the transmit power information of the discovery signal .

 With reference to the fourth aspect, or any one of the first to fifth possible implementation manners of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the discovery signal carries state information of the transmission point And the status information indicates whether the transmission point can be triggered by the UE by sending the trigger signal.

 With reference to the fourth aspect, or any one of the first to the sixth possible implementation manners of the fourth aspect, in the seventh possible implementation manner of the fourth aspect, the determining unit is further configured to determine the discovery signal The determining unit is configured to determine the configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship.

With reference to the fourth aspect, or any one of the first to the seventh possible implementation manners of the fourth aspect, in the eighth possible implementation manner of the fourth aspect, the triggering signal includes: triggering a reference signal or an uplink data packet signal. With reference to the eighth possible implementation manner of the foregoing aspect, in a ninth possible implementation manner of the fourth aspect, the configuration information of the trigger signal in a case that the trigger signal includes: the trigger reference signal The method includes: a candidate sequence and/or a time-frequency resource; where the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: a modulation coding mode, a payload size, and at least a time-frequency resource. One.

 With reference to the fourth aspect, or the first to the ninth possible implementation manners of the fourth aspect, in the tenth possible implementation manner of the fourth aspect, the discovery signal includes:: discovering a reference signal or a downlink data packet signal.

 With reference to the tenth possible implementation manner of the fourth aspect, in an eleventh possible implementation manner of the fourth aspect, in the case that the discovery signal includes: the discovery reference signal, the discovery signal The configuration information includes: a candidate sequence and/or a time-frequency resource; where the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: a modulation and coding mode, a payload size, and a time-frequency resource. At least one of them.

 With reference to the fourth aspect, or the first to eleventh possible implementation manners of the fourth aspect, in the twelfth possible implementation manner of the fourth aspect, the sending unit is further configured to The UE sends a response message of the trigger signal.

 According to a fifth aspect, an embodiment of the present invention provides a user equipment (UE), including: a processor, configured to detect a discovery signal sent by a transmission point, where the processor is further configured to acquire configuration information of a trigger signal according to the discovery signal. a transmitter, configured to send the trigger signal to the transmission point according to the configuration information of the trigger signal acquired by the processor, where the trigger signal carries first information; the first information The method includes: at least one of received power information of the discovery signal, transmission power information of the trigger signal, power offset information, and first timing offset information; the power offset refers to the trigger signal The offset value between the transmit power and the transmit power of the discovery signal; the first timing offset information is a time interval between the UE receiving the discovery signal and transmitting the trigger signal.

In a first possible implementation manner of the fifth aspect, the processor is further used to And when the first information includes: the received power information of the discovery signal, acquiring the received power information of the discovery signal according to the discovery signal.

 With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the processor is further configured to: In the case of the first timing offset information, the first timing offset information is determined according to the time when the discovery signal is received and the time when the trigger signal is transmitted.

 With reference to the fifth aspect, or the first or second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the processor is specifically configured to include, in the first information And the power offset information is determined according to the transmit power information of the discovery signal and the transmit power information of the trigger signal; wherein the discovery signal carries Transmit power information of the discovery signal.

 With reference to the fifth aspect, or any one of the first to the third possible implementation manners of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the processor is further configured to acquire the discovery signal The processor is further configured to determine a correspondence between configuration information of the discovery signal and configuration information of the trigger signal, where the processor is specifically configured to use configuration information according to the discovery signal. And determining the corresponding relationship, obtaining configuration information of the trigger signal.

 With reference to the fifth aspect, or any one of the first to the fourth possible implementation manners of the fifth aspect, in the fifth possible implementation manner of the fifth aspect, the trigger signal includes: a trigger reference signal or an uplink data packet signal.

 With reference to the fifth possible implementation manner of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, in the case that the trigger signal includes: the trigger reference signal, configuration information of the trigger signal The method includes: a candidate sequence and/or a time-frequency resource; where the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: a modulation coding mode, a payload size, and at least a time-frequency resource. One.

With the sixth possible implementation of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the processor is further configured to acquire the sending of the discovery signal The processor is configured to determine a path loss according to the obtained transmit power information of the discovery signal and the received power information of the discovery signal, where the processor is further configured to use, according to the path loss, The sending power information of the triggering signal is determined. The configuration information of the triggering signal further includes: sending power information of the triggering signal.

 With reference to the fifth aspect, or any one of the first to the seventh possible implementation manners of the fifth aspect, in the eighth possible implementation manner of the fifth aspect, the processor is further configured to use the discovery signal And acquiring, by the processor, the path power loss according to the obtained transmit power information of the discovery signal and the received power information of the discovery signal; And determining, according to the path loss, the sending power information of the sending trigger signal, where the transmitter is specifically configured to use, according to the configuration information of the trigger signal acquired by the processor, and the sending power information of the trigger signal, The transmission point transmits the trigger signal.

 With reference to the fifth aspect, or any one of the first to the eighth possible implementation manners of the fifth aspect, in the ninth possible implementation manner of the fifth aspect, the discovery signal further carries a state of the transmission point Information, the status information indicating whether the transmission point can be triggered by the transmitter by sending the trigger signal; the transmitter is specifically configured to indicate, in the status information, that the transmission point can be passed When the trigger signal is sent to trigger, the trigger signal is sent to the transmission point according to the configuration information of the trigger signal.

 With reference to the fifth aspect, or the first to the ninth possible implementation manner of the fifth aspect, in the tenth possible implementation manner of the fifth aspect, the discovery signal includes: discovering a reference signal or a downlink data packet signal.

With reference to the tenth possible implementation manner of the fifth aspect, in an eleventh possible implementation manner of the fifth aspect, in the case that the discovery signal includes: the discovery reference signal, the configuration of the discovery signal The information includes: a candidate sequence and/or a time-frequency resource; where the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: a modulation and coding mode, a payload size, and a time-frequency resource. At least one. With reference to the fifth aspect, or the first to eleventh possible implementation manners of the fifth aspect, in the twelfth possible implementation manner of the fifth aspect, the method further includes: a receiving unit, configured to receive the A response message of the trigger signal sent by the transmission point.

 According to a sixth aspect, an embodiment of the present invention provides a transmission point, including: a processor, configured to determine configuration information of a discovery signal, and a transmitter, configured to send, according to configuration information of the discovery signal determined by the processor, to a user The device UE sends the discovery signal; the processor is further configured to determine configuration information of the trigger signal, and the receiver is configured to receive the trigger signal sent by the UE according to the configuration information of the trigger signal determined by the processor. And the first information includes: the received power information of the discovery signal, the transmit power information of the trigger signal, the power offset information, and the first timing offset. At least one of the information; the power offset refers to an offset between the transmit power of the trigger signal and the transmit power of the discovery signal; the first timing offset information refers to the UE receiving The time interval between the discovery signal and the sending of the trigger signal; the processor is further configured to acquire the first letter from the trigger signal The processor is further configured to: when the transmission point is in a sleep state, switch the transmission point from a sleep state to an active state according to the first information; and/or, the processing unit is configured to When the transmission point is in an active state, the first transmission power is increased according to the first information; wherein the first transmission power is power used when the transmission point sends a common signal.

 In a first possible implementation manner of the sixth aspect, the processor is specifically configured to: according to the received power information of the discovery signal, the received power according to the discovery signal Information, and the transmit power information of the discovery signal, determining a path loss between the transmission point and the UE; the processor is specifically configured to: according to a path loss between the transmission point and the UE, And the processor is configured to increase the first transmit power according to a path loss between the transmission point and the UE.

With reference to the sixth aspect, in a second possible implementation manner of the sixth aspect, the processor is specifically configured to: when the first information includes: sending power information of the trigger signal, Transmitting power information of the trigger signal, and receiving the touch The received power information of the trigger signal obtained when the signal is sent, the path loss between the transmission point and the UE is determined; the processor is specifically configured to: according to the path between the transmission point and the UE Loss, switching the transmission point from the dormant state to the active state; and/or the processor is further configured to increase the first transmission according to a path loss between the transmission point and the UE power.

 With reference to the sixth aspect, in a third possible implementation manner of the sixth aspect, the processor is specifically configured to: when the first information includes: the power offset information, according to the power The offset information, and the transmit power information of the discovery signal, determining transmit power information of the trigger signal; the processor is specifically configured to use transmit power information according to the trigger signal, and when receiving the trigger signal Obtaining the received power information of the trigger signal, determining a path loss between the transmission point and the UE; the processor is specifically configured to: according to a path loss between the transmission point and the UE, And the processor is further configured to increase the first transmit power according to a path loss between the transmission point and the UE.

 With reference to the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the processor is specifically configured to: when the first information includes: first timing offset information, according to the discovery signal a transmission time, the first timing offset information, and a reception time at which the trigger signal is received, determining a transmission distance between the transmission point and the UE; the processor is further configured to be used according to the transmission a transmission distance between the point and the UE, the transmission point is switched from a dormant state to an active state; and/or the processor is further configured to perform transmission according to the transmission point and the UE The distance is increased by the first transmission power.

 With reference to the sixth aspect, or any one of the first to the fourth possible implementation manners of the sixth aspect, in the fifth possible implementation manner of the sixth aspect, the discovery signal carries the transmit power information of the discovery signal .

With reference to the sixth aspect, or any one of the first to the fifth possible implementation manners of the sixth aspect, in a sixth possible implementation manner of the sixth aspect, the discovery signal carries state information of the transmission point The status information indicates whether the transmission point can be The UE is triggered by sending the trigger signal.

 With reference to the sixth aspect, or the first to the sixth possible implementation manner of the sixth aspect, in a seventh possible implementation manner of the sixth aspect, the processor is further configured to determine the discovery signal Corresponding relationship between the configuration information and the configuration information of the trigger signal; the processor is specifically configured to determine configuration information of the trigger signal according to the configuration information of the discovery signal and the correspondence.

 With reference to the sixth aspect, or any one of the first to the seventh possible implementation manners of the sixth aspect, in the eighth possible implementation manner of the sixth aspect, the triggering signal includes: triggering a reference signal or an uplink data packet signal.

 With reference to the eighth possible implementation manner of the sixth aspect, in a ninth possible implementation manner of the sixth aspect, the configuration information of the trigger signal in a case that the trigger signal includes: the trigger reference signal The method includes: a candidate sequence and/or a time-frequency resource; where the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: a modulation coding mode, a payload size, and at least a time-frequency resource. One.

 With reference to the sixth aspect, or the first to the ninth possible implementation manners of the sixth aspect, in the tenth possible implementation manner of the sixth aspect, the discovery signal includes:: discovering a reference signal or a downlink data packet signal.

 With reference to the tenth possible implementation manner of the sixth aspect, in an eleventh possible implementation manner of the sixth aspect, in the case that the discovery signal includes: the discovery reference signal, the discovery signal The configuration information includes: a candidate sequence and/or a time-frequency resource; where the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: a modulation and coding mode, a payload size, and a time-frequency resource. At least one of them.

 With reference to the sixth aspect, or the first to eleventh possible implementation manners of the sixth aspect, in the twelfth possible implementation manner of the sixth aspect, the transmitter is further used to The UE sends a response message of the trigger signal.

In a seventh aspect, the embodiment of the present invention provides a system for transmitting and receiving a trigger signal, including: a user equipment UE and a transmission point; wherein, the UE is the foregoing embodiment. The UE; the transmission point is a transmission point described in the foregoing embodiment.

 The embodiment of the present invention provides a method, a device, and a system for transmitting and receiving a trigger signal. After detecting a discovery signal, the user equipment UE acquires configuration information of the trigger signal according to the discovery signal, and the UE may use the configuration information of the trigger signal according to the configuration information of the trigger signal. Sending a trigger signal to the transmission point, so that the transmission point acquires the first information after receiving the trigger signal, and when the transmission point is in the sleep state, the transmission point is, according to the first information, the transmission point is dormant Switching to an active state; and/or, when the transmission point is in an active state, the transmission point increases the first transmission power according to the first information. In this way, when the transmission point of the common signal of the transmission point is in the dormant state or the transmission point is decreased, the UE may send a trigger signal to the transmission point, and the UE triggers the transmission point to switch from the dormant state to the active state, or increase the transmission of the common signal. The power does not require the participation of the macro base station, so that the triggering transmission point provides services for the UE without the assistance of the macro base station, and the user experience is improved. DRAWINGS

 In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

 FIG. 1 is a schematic flowchart of a method for transmitting a trigger signal according to an embodiment of the present invention;

 2 is a schematic flowchart of another method for receiving a trigger signal according to an embodiment of the present invention;

 FIG. 3 is a schematic diagram of an example of sending and receiving a trigger signal according to an embodiment of the present disclosure;

 4 is a schematic flowchart of another method for transmitting and receiving a trigger signal according to an embodiment of the present invention;

 FIG. 5 is a schematic flowchart of another method for transmitting and receiving a trigger signal according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of functions of a user equipment UE according to an embodiment of the present invention; Figure 2 is a schematic diagram showing the function of another user equipment UE according to an embodiment of the present invention; Figure 8 is a schematic diagram showing the function of a transmission point according to an embodiment of the present invention;

 FIG. 9 is a schematic structural diagram of a user equipment UE according to an embodiment of the present invention; FIG. 10 is a schematic structural diagram of a transmission point according to an embodiment of the present invention;

 FIG. 1 is a schematic structural diagram of a system for transmitting and receiving a trigger signal according to an embodiment of the present invention.

detailed description

 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

 An embodiment of the present invention provides a method for sending a trigger signal, as shown in FIG. 1 , including:

 1 0 1. The UE (U s e r E qu i pmen t , user equipment) detects the discovery signal transmitted by the transmission point.

 The discovery signal is sent by the transmission point, and is used by the UE to discover a signal of the transmission point. The transmission point is a base station or a first UE.

 It should be noted that the first UE is a UE other than the UE. When the transmission point is a base station, the discovery signal is sent by the base station, and the UE is used to discover the signal of the base station. Or, when the transmission point is the first UE, the discovery signal is sent by the first UE, and the UE is used to discover the signal of the first UE, and the communication evolves into a direct communication or discovery between the UEs. In the present invention, the above two cases are not limited. In the following description, the discovery signal is sent by the base station as an example for description. The implementation manner of transmitting the discovery signal by the first UE is similar and will not be described again.

Specifically, when the UE enters the coverage of a certain cell, the UE may receive the discovery signal broadcast by the base station. The discovery signal is generally longer than the transmission period of the synchronization signal and the broadcast signal normally accessed by the UE, and is transmitted at least once in a millisecond level, for example, 200 milliseconds, and is normally used for UE access. Synchronization signal and broadcast signal The transmission period of the number is 10 milliseconds. For example, the synchronization signal period of the LTE system is 5 milliseconds, and the broadcast channel period is 10 milliseconds.

 The discovery signal may be sent when the base station is in a dormant state, and the UE may discover the cell under the jurisdiction of the base station in time when the base station is in the dormant state, and perform measurement on the cell, such as detecting the received power of the signal or the quality of the received signal. . Of course, the discovery signal can also be sent when the base station is in an active state, and the action is the same as when the base station is in the dormant state, and is not limited.

 It should be noted that, in the dormant state, the base station defined in the embodiment of the present invention means that the base station is in a power-saving state in which the base station is in a closed state. In this state, the base station only sends the discovery signal; and when the base station is in an active state, the base station is in a normal service state. In addition to continuing to send discovery signals, it is also necessary to transmit synchronization signals, broadcast channels, common reference signals, control channels, and data channels for the UE to normally access.

 Further, the discovery signal includes: a discovery reference signal or a downlink data packet signal.

 It should be noted that, before detecting the discovery signal, the UE needs to acquire the configuration information of the discovery signal, so that the discovery signal can be detected according to the configuration information.

 It should be noted that the configuration information of the discovery signal is configuration information when the discovery signal is received or transmitted. For the UE, the configuration information of the UE acquiring the discovery signal refers to that the UE acquires configuration information when receiving the discovery signal.

 Further, when the discovery signal is a discovery reference signal, the configuration information includes a candidate sequence and/or a time-frequency resource of the discovery signal.

f , ^ it /f^歹¹ ■! Thought Za do ff — Chu /f>歹'] , M / >歹] G o 1 d /f>歹'], etc., multiple candidate sequences and/or time-frequency The resource may indicate the cell identity of the cell of the base station transmitting the discovery signal, so that the UE can distinguish different cells by detecting the discovery signal.

 When the discovery signal is a downlink data packet signal, the configuration information may include information such as a modulation and coding mode, a payload size, and the like. The configuration information can be pre-configured or configured to the UE through the signaling.

Taking the discovery reference signal as an example, the UE detecting the discovery signal can be understood as a UE detection station. The candidate sequence is used to match the actual sequence used by the base station to actually send the discovery signal, and the actual sequence is one of the candidate sequences, and then the actual sequence determines that the base station occupies the cell identity of the current cell, that is, the current cell is found.

 Further, the discovery signal carries state information of the transmission point.

 The status information indicates whether the transmission point can be triggered by the UE by sending the trigger signal.

 The UE obtains configuration information of the trigger signal according to the discovery signal. The trigger signal is sent by the UE, and is used to trigger the signal that the transmission point provides a service for the UE.

 The configuration information of the trigger signal is configuration information when the trigger signal is received or transmitted. For the UE in the embodiment of the present invention, the configuration information of the trigger signal is configuration information when the trigger signal is sent. For example, the configuration information includes: a sequence and/or time-frequency resource information used when transmitting the trigger information, and a transmission power information when the trigger information is sent. Alternatively, the configuration information includes: a sequence and/or time-frequency resource information used when transmitting the trigger information.

 Specifically, before detecting the discovery signal, the UE may determine the actual configuration information of the discovery signal, such as the actual sequence and/or the actual time-frequency resource, and the UE may obtain the configuration of the trigger signal according to the actual configuration information of the discovery signal. information.

 Further, the trigger signal includes: a trigger reference signal or an uplink data packet signal.

 It should be noted that the corresponding configuration information is different according to the trigger signal. Further, in the case that the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: a candidate sequence and/or a time-frequency resource.

 It should be noted that the UE may first determine the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, and then, after determining the configuration information of the discovery signal, according to the configuration information of the discovery signal and the configuration information of the trigger signal. Correspondence relationship, determine the configuration information of the trigger signal.

At this time, when the configuration information of the trigger signal includes the candidate sequence, the UE may obtain the correspondence relationship according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal. The information corresponding to the candidate sequence of the trigger signal in the configuration information of the number determines the candidate sequence to be used when actually transmitting the trigger signal.

 Further, the configuration information of the discovery signal includes a candidate sequence, and the candidate sequence of the discovery signal has a corresponding relationship with the candidate sequence of the trigger signal. The UE may determine a candidate sequence of the trigger signal according to the candidate sequence of the discovery signal and the corresponding relationship.

 The correspondence between the candidate sequence of the discovery signal and the candidate sequence of the trigger signal may be a corresponding correspondence relationship, or may be a one-to-many correspondence relationship, and may also be a many-to-one correspondence relationship. In addition, the sequence of the discovery signal and the sequence of the trigger signal may be of the same type, for example, both Z a do ff _C hu sequence 歹 'J or both are M sequences 歹 'J, or may be different types of sequences, such as a sequence of discovery signals. It is an M sequence or a G old (Gold) sequence, and the sequence of the trigger signal is a Z adoff -C hu sequence.

 It should be noted that the correspondence between the candidate sequence of the discovery signal and the candidate sequence of the trigger signal may also be other correspondences, such as a many-to-many correspondence, and the correspondence may be preset or may be signaling. The UE is notified, and the present invention does not limit this.

 Specifically, if the correspondence between the candidate sequence of the signal and the candidate sequence of the trigger signal is the corresponding correspondence, the UE may determine the candidate sequence of the discovery signal according to the candidate sequence of the discovery signal and the trigger signal. The corresponding correspondence of the candidate sequences determines a candidate sequence of the trigger signal.

 If the correspondence between the candidate sequence of the signal and the candidate sequence of the trigger signal is found to be a one-to-many correspondence, after determining the candidate sequence of the discovery signal, the UE may select the candidate sequence of the discovery signal and the candidate sequence of the trigger signal. A one-to-many correspondence determines a candidate sequence of a set of trigger signals. At this time, the UE may select a candidate sequence of the trigger signal from the candidate sequences of the set of trigger signals as a candidate sequence in the configuration information of the trigger signal.

Further, the UE may randomly select a candidate sequence of the trigger signal from the candidate sequences of the set of trigger signals as a candidate sequence in the configuration information of the trigger signal. A candidate sequence of the trigger signal may also be selected according to other information in the configuration information of the discovery signal (such as the received power information of the currently found signal), as a trigger signal. The candidate sequence in the configuration information.

 It should be noted that the method for selecting a candidate sequence of the trigger signal from the candidate sequence of the trigger signal as the candidate sequence in the configuration information of the trigger signal may be other methods, which is not limited in the present invention.

 If the correspondence between the candidate sequence of the signal and the candidate sequence of the trigger signal is found to be a many-to-one correspondence, the UE may select the candidate sequence group of the discovery signal and the candidate of the trigger signal after determining the candidate sequence group of the discovery signal. The many-to-one correspondence of the sequences determines a candidate sequence of a trigger signal corresponding to the candidate sequence group of the discovery signal. At this time, the candidate sequence group of the discovery signal may not be determined, but the candidate sequence of the detected discovery signal may be directly used to directly correspond to the candidate sequence of the trigger signal, because at this time, multiple candidate sequences of the found signal correspond to the trigger. A candidate sequence of the signal, then any candidate sequence of the plurality of candidate sequences can be uniquely matched to the candidate sequence of the trigger signal.

 It should be noted that, the method for the UE to determine the candidate sequence group of the discovery signal may be that the UE detects a candidate sequence in the configuration information of the discovery signal, and the UE may determine the candidate sequence group corresponding to the candidate sequence according to the candidate sequence. At this time, the UE stores in advance all candidate sequence groups of the discovery signal. Of course, the UE may determine the candidate sequence group of the discovery signal by other methods, which is not limited by the present invention.

 It should be noted that, when other information is included in the configuration information of the discovery signal, for example, the time-frequency resource, the other information in the configuration information of the discovery signal may correspond to the candidate sequence of the trigger signal, for example, the signal is found. The time-frequency resource of the configuration information has a corresponding relationship with the candidate sequence of the trigger signal. U E acquires the configuration information of the trigger signal according to other information of the configuration information of the discovery signal and the correspondence between the other information in the configuration information of the discovery signal and the candidate sequence of the trigger signal. The present invention does not limit the specific information corresponding to the candidate sequence of the trigger signal in the configuration information of the discovery signal.

When the configuration information of the trigger signal includes a time-frequency resource, the UE may obtain information corresponding to the time-frequency resource of the trigger signal from the configuration information of the discovery signal according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal. Determine the trigger signal Time-frequency resources.

 Further, the configuration information of the discovery signal includes a time-frequency resource, and the time-frequency resource of the discovery signal has a corresponding relationship with the time-frequency resource of the trigger signal. The UE can determine the time-frequency resource of the trigger signal according to the time-frequency resource of the discovery signal and the corresponding relationship.

 The time-frequency resources include: frequency resources and time domain resources.

 At this time, the UE may determine the frequency resource of the trigger signal according to the frequency resource of the discovery signal and its corresponding relationship. The UE may determine the time domain resource of the trigger signal according to the time domain resource of the discovery signal and its corresponding relationship.

 Specifically, the correspondence between the frequency resource of the discovery signal and the frequency resource of the trigger signal may be a correspondence between a downlink frequency resource that sends the discovery signal and an uplink frequency resource that sends the trigger signal. For example, the transmission point sends a discovery signal through a certain frequency resource of the downlink carrier, and the U E can use the uplink frequency resource corresponding to the downlink frequency resource as the frequency resource in the configuration information of the trigger signal.

 It should be noted that, when acquiring the frequency resource in the configuration information of the trigger signal, the UE may not acquire the configuration information of the discovery signal. In this case, the UE may define the frequency resource by itself.

 The correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal may be - a corresponding correspondence relationship, or a one-to-many correspondence relationship.

 Specifically, if the corresponding relationship between the time domain resource of the signal and the time domain resource of the trigger signal is found to be the corresponding correspondence, the UE may receive the discovery signal sent by the transmission point after the subframe N, according to the discovery signal. The corresponding correspondence between the time domain resource and the time domain resource of the trigger signal may be used by the UE as the time domain resource in the configuration information of the trigger signal.

 It should be noted that the UE may use other subframes such as the subframe N+M as the time domain resource in the configuration information of the trigger signal, and M is a positive integer greater than 0. The invention is not limited thereto. Of course, the UE can also use other timing relationships to determine the time domain resources of the trigger signal according to the time domain resources of the discovery signal. The invention is not limited thereto.

If the correspondence between the time domain resource of the signal and the time domain resource of the trigger signal is found to be a one-to-many correspondence, the UE may receive the discovery message sent by the transmission point in the subframe N. After the number, the UE may use the subframe N+i as the time domain resource in the configuration information of the trigger signal according to a one-to-many correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal.

 Preferably, i is an integer multiple of four.

It should be noted that the UE may randomly determine the value of i, and use the subframe N+i as the time domain resource in the configuration information of the trigger signal. Certainly, the UE may also determine the value of i according to the identification information of the UE, and use the subframe N+i as the time domain resource in the configuration information of the trigger signal. The multiple time domain resources of the above N+i are generally discontinuous subframes. As long as i is not equal to 1, the above correspondence may also correspond to a series of consecutive subframes as time domain resources, such as consecutive j subframes starting from N+i. , ie N+ i , N+ i + 1 , N+ i + j - 1 ₀

 It should be noted that, if the UE determines the value of i according to the identity information of the UE, the UE may modulate the identifier to the first integer to obtain a remainder, where the value of i is the product of the remainder and 4. Wherein, the first integer is preset. Certainly, the determining the value of i according to the identification information of the UE may be other methods, which is not limited by the present invention.

 It should be noted that the UE may also determine the value of i according to other methods, and the present invention does not limit this.

 It should be noted that the UE may also obtain the time domain resource in the configuration information of the trigger signal by using other methods, for example, the time domain resource in the configuration information of the trigger signal is set by the UE itself, which is not limited by the present invention.

 It should be noted that, when other information is included in the configuration information of the discovery signal, for example, the candidate sequence, the other information in the configuration information of the discovery signal may correspond to the time-frequency resource of the trigger signal, for example, the candidate sequence and the trigger. The time-frequency resources of the signals have a corresponding relationship. The UE obtains the configuration information of the trigger signal according to other information of the configuration information of the discovery signal and the correspondence between the other information in the configuration information of the discovery signal and the time-frequency resource of the trigger signal. The present invention does not limit the specific information corresponding to the time-frequency resource of the trigger signal in the configuration information of the discovery signal.

In the case that the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource. In this case, when the configuration information of the trigger signal includes the modulation and coding mode, the UE may correspond to the modulation and coding mode of the trigger signal from the configuration information of the discovery signal according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal. The information determines the modulation and coding mode of the trigger signal.

 Optionally, the configuration information of the discovery signal includes a modulation and coding manner, and the information corresponding to the modulation and coding of the trigger signal in the configuration information of the discovery signal is a modulation and coding manner, and the UE may perform a modulation and coding manner according to the discovery signal, and discover the signal. The correspondence between the modulation and coding mode and the modulation and coding mode of the trigger signal determines the modulation and coding mode of the trigger signal.

 It should be noted that the information corresponding to the modulation and coding mode of the trigger signal in the configuration information of the discovery signal may be other information, such as a candidate sequence of the discovery signal, a time-frequency resource, etc., which is not limited by the present invention.

 When the configuration information of the trigger signal includes the load size, the UE may determine, according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, the information corresponding to the load size of the trigger signal in the configuration information of the discovery signal. The load size of the trigger signal.

 Optionally, the configuration information of the discovery signal includes a load size, and the information corresponding to the modulation code of the trigger signal in the configuration information of the discovery signal is a payload size, and the UE may determine the load size of the signal according to the load size of the discovery signal. Corresponding to the load size of the trigger signal, the load size of the trigger signal is determined.

 It should be noted that the information corresponding to the load size of the trigger signal in the configuration information of the discovery signal may be other information, such as a candidate sequence of the discovery signal, a time-frequency resource, etc., which is not limited by the present invention.

 It should be noted that the UE acquires the configuration information of the trigger signal according to the configuration information of the discovery signal and the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal. The present invention does not limit the specific content of the configuration information of the discovery signal. The correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal can be set in advance.

The UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal. The trigger signal carries the first information. The first information includes: at least one of received power information of the discovery signal, transmission power information of the trigger signal, power offset information, and first timing offset information.

 The power offset refers to an offset value between a transmission power of the trigger signal and a transmission power of the discovery signal. The first timing offset information refers to a time interval between the UE receiving the discovery signal and transmitting the trigger signal.

 Specifically, after acquiring the configuration information of the trigger signal, the UE may obtain the resource information used when the trigger signal is sent, and the UE may add the first information to the trigger signal, and send the trigger signal to the transmission point. That is, the trigger signal is sent to the transmission point according to the configuration information, so that after receiving the trigger signal, the transmission point may determine that the transmission point is switched from the sleep state to the active state according to the first information in the trigger signal, or When the point is in an active state, the first transmit power is increased according to the first information.

 Further, the method for the UE to carry the first information on the trigger signal is as follows. Specifically, the UE may directly add the first information to the payload of the trigger signal, and directly load the first information by the load of the trigger signal, that is, load data that uses the first information as a trigger signal, and adds the first information to the trigger signal. in.

 The UE may also carry the first information by using configuration information of the trigger signal. At this time, the content of the first information is not directly added to the configuration information of the trigger signal, but the correspondence between the configuration information of the first information and the trigger signal is established in advance, and the transmission point can be simultaneously acquired when receiving the trigger signal. The configuration information of the trigger signal is used to obtain the first information according to the configuration information of the trigger signal and the correspondence between the first information and the configuration information of the trigger signal. That is, the first information is carried by the configuration information of the trigger signal.

Exemplarily, the transmission point is a base station. If the first information includes the received power information of the discovery signal, the first information is carried by the candidate sequence in the configuration information of the trigger signal, that is, the received power of the candidate sequence and the discovery signal is pre-established. Correspondence between information. For example, the received power value a of the candidate sequence 1 corresponding to the discovery signal is pre-established, or the received power level of the corresponding discovery signal is 1; the candidate sequence 2 corresponds to the received power value b of the discovery signal, or the received power level of the corresponding discovery signal is 2 Correspondence. In this way, when the base station receives the trigger signal and knows that the candidate sequence of the trigger signal is 1, according to the correspondence between the candidate sequence and the received power information of the discovery signal, the base station can know that the candidate sequence is the received power value of the corresponding discovery signal. , or the received power level of the corresponding discovery signal is 1, so that the first information can be obtained.

 It should be noted that the UE carries the first information by using the trigger signal, and other methods may be used. The present invention does not limit this.

 Further, when the discovery signal carries the status information of the transmission point, the sending, by the UE, the trigger signal to the transmission point according to the configuration information of the trigger signal includes:

 When the status information indicates that the transmission point can be triggered by the UE by sending the trigger signal, the UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal.

 The embodiment of the present invention provides a method for transmitting a trigger signal. After detecting a discovery signal, the user equipment UE acquires configuration information of the trigger signal according to the discovery signal, and the UE may send a trigger signal to the transmission point according to the configuration information of the trigger signal. So that the transmission point acquires the first information after receiving the trigger signal, and when the transmission point is in the sleep state, the transmission point is switched from the sleep state to the active state according to the first information; And/or, when the transmission point is in an active state, the transmission point increases the first transmission power according to the first information. In this way, when the transmission point of the common signal of the transmission point is in the dormant state or the transmission point is decreased, the UE may send a trigger signal to the transmission point, and the UE triggers the transmission point to switch from the dormant state to the active state, or increase the transmission of the common signal. The power does not require the participation of the macro base station, so that the triggering transmission point provides services for the UE without the assistance of the macro base station, and the user experience is improved.

 An embodiment of the present invention provides a method for receiving a trigger signal, as shown in FIG. 2, including:

 2 0 1. The transmission point determines configuration information of the discovery signal and transmits the discovery signal according to the configuration information of the discovery signal.

The discovery signal is sent by the transmission point, and is used by the user equipment UE to discover the signal of the transmission point. The transmission point can be a base station or a first UE. It should be noted that the configuration information of the discovery signal is configuration information when the discovery signal is received or transmitted. For the transmission point, the transmission point determines that the configuration information of the discovery signal is that the transmission point determines configuration information when transmitting the discovery signal.

 It should be noted that the first UE is a UE other than the UE. At this time, when the transmission point is a base station, the discovery signal is sent by the base station, and is used by the UE to discover the signal of the base station. Or, when the transmission point is the first UE, the discovery signal is sent by the first UE, and is used by the UE to discover the signal of the first UE. At this point the communication evolves into a direct communication or discovery between the UEs. In the present invention, the above two cases are not limited. In the following description, the discovery signal is sent by the base station as an example for description. The implementation manner of transmitting the discovery signal by the first UE is similar and will not be described again.

 Specifically, the configuration information of the discovery signal may be preset in the base station, that is, the base station may preset resource information when transmitting the discovery signal, such as time-frequency information, candidate sequence, and the like. After determining the configuration information of the discovery signal, the base station is in the dormant state when the base station is in the dormant state, or the base station is in the active state, but when the transmission power of the common signal is reduced, the discovery signal may be sent by broadcasting according to the configuration information in a certain period. So that the UE around the base station discovers and accesses the base station. The discovery signal generally has a longer period than a normal transmission period for the synchronization signal and the broadcast signal for the UE to access, and is transmitted at least once in a millisecond level, for example, 200 milliseconds, and is normally used for UE access. The transmission period of the synchronization signal and the broadcast signal is 10 milliseconds. For example, the synchronization signal period of the L TE system is 5 milliseconds, and the broadcast channel period is 10 milliseconds.

 It should be noted that, when the base station is in an active state and the transmission power of the common signal is not reduced, the discovery signal may also be sent by means of a broadcast, which is not limited by the present invention.

 It should be noted that, in the embodiment of the present invention, the base station is in a dormant state, meaning that the base station is in a closed power saving state, in which the base station only sends the discovery signal; and when the base station is in an active state, the base station is in a normal service state. In addition to continuing to transmit discovery signals, it is also necessary to transmit synchronization signals, broadcast channels, common reference signals, control channels, and data channels for the UE to normally access.

Further, the discovery signal carries the transmission power information of the discovery signal. Specifically, the transmission point adds the transmission power information of the discovery signal to the discovery signal, so as to send the transmission power information of the discovery signal to the UE. Specifically, the method for adding the transmission power information of the discovery signal to the discovery signal by the transmission point is as follows:

 The transmission point may directly add the transmission power information of the discovery signal to the payload of the discovery signal, and directly transmit the transmission power information of the discovery signal by the load of the discovery signal, that is, the transmission power information of the discovery signal as the load data of the discovery signal, The transmission power information of the discovery signal is added to the discovery signal.

 The transmission point may also carry the transmission power information of the discovery signal through the candidate sequence of the discovery signal. At this time, the transmission point and the UE need to preset the correspondence between the transmission power information of the discovery signal and the candidate sequence of the discovery signal. The transmission point sets a candidate sequence of the discovery signal according to the transmission power information of the discovery signal, and sends the discovery signal to the UE, so that after receiving the discovery signal, the UE may perform the transmission power information and the discovery signal according to the preset discovery signal. The correspondence between the candidate sequences and the candidate sequence of the discovery signal determine the transmission power of the discovery signal.

 Exemplarily, assuming that the transmission point is a base station, the base station and the UE need to preset the candidate sequence of the discovery signal. 1 indicates that the transmission power value of the discovery signal is Q, and the candidate sequence 2 of the discovery signal indicates that the transmission power value of the discovery signal is P. When the transmission power of the discovery signal sent by the base station is Q, the base station sets the candidate sequence of the discovery signal to 1, and sends the discovery signal to the UE, so that when the UE receives the discovery signal, the candidate sequence 1 of the discovery signal can be learned, and according to the pre- The correspondence between the transmission power information of the discovery signal and the candidate sequence of the discovery signal determines that the transmission power value of the discovery signal is Q.

 It should be noted that, in the embodiment of the present invention, the specific method for the discovery signal carrying the transmission power information of the discovery signal may be other methods, which are not limited by the present invention.

It should be noted that, when acquiring the discovery signal sent by the transmission point, the UE needs to acquire the configuration information of the discovery signal. At this time, the transmission point and the UE may further establish a correspondence between the configuration information of the discovery signal and the transmission power information of the discovery signal, so that the configuration of the discovery signal that can be established by the UE when the configuration information of the discovery signal is acquired by the UE. The correspondence between the information and the transmission power information of the discovery signal, and the transmission point is known to be transmitted. Transmit power when the signal is found. At this time, the transmission point carries the transmission power of the discovery signal through the configuration information of the discovery signal.

 It should be noted that the method for the transmission point to send the discovery signal to the UE may also be other methods, which is not limited by the present invention.

 Further, the discovery signal includes: a discovery reference signal or a downlink data packet signal.

 It should be noted that the discovery signals are different, and the corresponding configuration information is different.

 In the case that the discovery signal includes: the discovery reference signal, the configuration information of the discovery signal includes: a candidate sequence and/or a time-frequency resource. In the case that the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 Further, the discovery signal carries state information of the transmission point.

 The status information indicates whether the transmission point can be triggered by the UE by sending the trigger signal.

 The transmission point determines the configuration information of the trigger signal, and receives the trigger signal sent by the UE according to the configuration information of the trigger signal.

 The trigger signal carries the first information. The first information includes: at least one of received power information of the discovery signal, transmission power information of the trigger signal, power offset information, and first timing offset information.

 The power offset refers to an offset value between a transmission power of the trigger signal and a transmission power of the discovery signal. The first timing offset information refers to a time interval between the UE receiving the discovery signal and transmitting the trigger signal.

 It should be noted that the configuration information of the trigger signal is configuration information when receiving or transmitting the trigger signal. For the transmission point in the embodiment of the present invention, the configuration information of the trigger signal is configuration information when the trigger signal is received. For example, the configuration information includes: sequence and/or time-frequency resource information used when receiving the trigger information, and transmission power information when the trigger information is received. Alternatively, the configuration information includes: a sequence and/or time-frequency resource information used when receiving the trigger information, and the like.

Specifically, the transmission point may be rooted after determining the configuration information of the discovery signal. It is found that the configuration information of the signal knows the configuration information of the trigger signal. At this time, the transmission point needs to first determine the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, so that the configuration information of the trigger signal can be obtained according to the configuration information of the discovery signal.

 It should be noted that the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal is preset.

 Further, the trigger signal includes: a trigger reference signal or an uplink data packet signal.

 It should be noted that the corresponding configuration information is different according to the trigger signal.

 In the case that the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: a candidate sequence and/or a time-frequency resource. In the case that the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 Further, the method for carrying the first information in the trigger signal is as follows. Specifically, the first information is directly carried by the load of the trigger signal, that is, the load data that uses the first information as a trigger signal.

 The first information may also be carried by the configuration information of the trigger signal. In this case, the content of the first information is not directly carried in the configuration information of the trigger signal, but the correspondence between the configuration information of the trigger signal and the first information is established in advance. Therefore, the transmission point can learn the first information according to the configuration information of the trigger signal and the correspondence between the first information and the configuration information of the trigger signal.

 It should be noted that the method for carrying the first information in the trigger signal may also adopt other methods, which are not limited in the present invention.

 2 03. The transmission point acquires the first information from the trigger signal.

 Specifically, when the transmission point acquires the trigger signal, the method for acquiring the first information according to the trigger signal is different, and the method for obtaining the first information is also different.

If the first information is directly carried by the load of the trigger signal, that is, when the first information is used as the load data of the trigger signal, the transmission point directly analyzes the trigger signal, and the trigger signal is The first information is obtained in the payload bearer.

 If the first information is carried by the configuration information of the trigger signal, the transmission point may obtain the first information according to the configuration information of the trigger signal and the correspondence between the first information and the configuration information of the trigger signal.

 Exemplarily, the transmission point is a base station. If the first information includes the received power information of the discovery signal, the first information is carried by the candidate sequence in the configuration information of the trigger signal, that is, the candidate sequence and the discovery signal are pre-established. Correspondence between power information. For example, the received power value a corresponding to the discovery signal of the candidate sequence 1 is set in advance, or the received power level of the corresponding discovery signal is 1; the received power value b corresponding to the discovery signal of the candidate sequence 2, or the received power level of the corresponding discovery signal is 2 Correspondence. In this way, when the base station receives the trigger signal and knows that the candidate sequence of the trigger signal is 1, according to the correspondence between the candidate sequence and the received power information of the discovery signal, the base station can know that the candidate sequence is the received power value of the corresponding discovery signal. , or the received power level of the corresponding discovery signal is 1, so that the first information can be obtained.

 2 04. The transmission point adjusts a state according to the first information or increases the first transmission power. Specifically, when the transmission point is in a dormant state, the transmission point is switched from a sleep state to an active state according to the first information. And/or, when the transmission point is in an active state, the transmission point increases the first transmission power according to the first information.

 The first transmit power is power used when the transmission point sends a common signal. The common signal includes at least one of a cell-specific reference signal, a physical broadcast channel, and a broadcast channel carried in a common search space.

 It should be noted that, in the embodiment of the present invention, the transmission point adjusts the state according to the first information or increases the first transmission power, that is, after the transmission point acquires the first information, determining, according to the first information, whether to provide services for the UE. If it is determined that the UE can be served, at this time, the transmission point adjusts the state or increases the first transmission power.

That is, after the first information is obtained by the transmission point, it may be determined according to the first information whether to provide a service for the UE that sends the trigger signal, that is, whether the UE that is allowed to send the trigger signal is allowed to access the transmission point according to the first information. . If it is determined that the UE capable of transmitting the trigger signal can be served, if the transmission point is in the sleep state, the transmission point can be hibernated. The state is switched to the active state. Optionally, after the transmission point is switched from the dormant state to the active state, the transmission point may increase the first transmit power to send a common signal to the UE.

 Or, when the transmission point is in an active state, since the transmission point has reduced the first transmission power before receiving the trigger signal, the transmission point cannot transmit the public signal to the UE by using the first transmission power, and the transmission point may directly The first transmit power is increased such that the transmission point can transmit the common signal to the UE using the first transmit power.

 Exemplarily, assuming that the transmission point is a base station, as shown in FIG. 3, there are three base stations, a base station 1, a base station 2, and a base station 3. The transmission power of the discovery signals of the three base stations is statically constant, and the transmission power of the common signals can be dynamically adjusted. Therefore, the transmission power of the public signals of the three base stations can be dynamically adjusted according to the location of the UEs it serves or the distance between the UE and the base station. It is assumed that the UE 3 served by the base station 3 is located at the cell edge of the base station 3, so the transmission power of the discovery signal of the base station 3 is the same as the transmission power of the common signal. There is no serving UE in base station 1, so base station 1 is in a dormant state, at which time base station 1 only transmits a discovery signal and does not transmit a common signal. The UE 2 served by the base station 2 is located in the core range of the base station 2, so the transmission power of the discovery signal of the base station 2 is different from the transmission power of the common signal. Base station 2 reduces the transmit power of the common signal, thereby reducing interference to other neighboring base stations.

 At this time, UE 1 enters the boundary between base station 1 and base station 2. The UE 1 needs to measure the base station 1 and the base station 2 to select its serving base station. If the UE 1 selects the base station 1 as its serving base station, the UE 1 detects the discovery signal of the base station 1, and after determining the configuration information of the trigger signal according to the discovery signal, sends a trigger signal carrying the first information to the configuration information according to the configuration information. Base station 1. The base station 1 determines the configuration information of the trigger signal, and after receiving the trigger signal carrying the first information according to the configuration information of the trigger signal, determines whether to provide the service for the UE 1 according to the first information. If the base station 1 determines to provide a service for the UE 1, the base station 1 switches its state from the sleep state to the active state, and adjusts the transmit power of the appropriate common signal, so that the UE 1 can receive the public information, thereby enabling the UE 1 to access. Or camp on base station 1.

If the UE 1 selects the base station 2 as its serving base station, the UE 1 detects the discovery signal of the base station 2, and determines the configuration information of the trigger signal according to the discovery signal, according to the configuration. The information transmits a trigger signal carrying the first information to the base station 2. After receiving the trigger information carrying the first information, the base station 2 determines whether to provide the service for the UE 1 according to the first information. If the base station 2 determines to provide a service for the UE 1, the base station 2 increases the transmission power of the common signal so that the UE 1 can receive the common information, thereby causing the UE 1 to access or camp on the base station 2.

 Further, in the case that the first information includes: the received power information of the discovery signal, the transmission point according to the first information, the switching of the transmission point from the dormant state to the active state includes: the transmitting Determining a path loss between the transmission point and the UE according to the received power information of the discovery signal and the transmission power information of the discovery signal; the transmission point is according to the transmission point and the UE The path loss between the transmission points is switched from the sleep state to the active state. And/or, the transmitting point is configured to increase the first transmit power according to the first information, where: the transmission point determines, according to the received power information of the discovery signal, and the transmit power information of the discovery signal. a path loss between the transmission point and the UE; the transmission point increases the first transmission power according to a path loss between the transmission point and the UE.

 Specifically, in a case where the first information includes: the received power information of the discovery signal, the transmission point determines the transmission point according to the received power information of the discovery signal and the transmission power information of the discovery signal. And a path loss between the UE and the UE; determining, according to the path loss between the transmission point and the UE, whether to provide a service for a UE that sends a trigger signal, and if providing a service for a UE that sends a trigger signal, transmitting When the point is in the sleep state, the transmission point is switched from the sleep state to the active state. Alternatively, the transmission point increases the first transmission power when the transmission point is in an active state. If it is determined that the UE transmitting the trigger signal is not served, the transmission point does not perform any processing.

That is, the UE transmits the received power information when it receives the discovery signal to the transmission point. When the transmission point information of the discovery signal is acquired, the transmission point may send the transmission power information of the discovery signal according to the transmission point, and calculate the path loss of the channel where the transmission point sends the discovery signal to the UE, that is, the transmission point and the UE. Path loss between. Optionally, the transmission point may use a difference between a transmit power of the transmit discovery signal and a received power when the UE receives the discovery signal as a path loss between the transmission point and the UE. After determining the path loss between the transmission point and the UE, the transmission point determines whether to provide a service for the UE that sends the trigger signal according to the path loss between the transmission point and the UE. The specific method may be to compare the path loss with a preset threshold a. If the path loss is greater than the preset threshold a, the channel quality between the transmission point and the UE is poor, or between the transmission point and the UE. The distance is far away. At this time, the transmission point determines that the UE is not served. When the transmission point is in the sleep state, the transmission point does not adjust its state, or when the transmission point is in the active state, the transmission point does not increase its first. Transmit power, that is, the transmission point does not allow UE access. If the path loss is less than the preset threshold a, the channel quality between the transmission point and the UE is good, or the distance between the transmission point and the UE is relatively close. At this time, the transmission point determines that the UE can be served, and then the transmission is performed. When the point is in the sleep state, the transmission point will be switched from the sleep state to the active state, or when the transmission point is in the active state, the transmission point increases its first transmission power for the UE to access.

 Or, in a case that the first information includes: the sending power information of the triggering signal, the transmitting point, according to the first information, that the transmission point is switched from a dormant state to an active state, the: Determining a path loss between the transmission point and the UE according to the transmit power information of the trigger signal and the received power information of the trigger signal acquired when the trigger signal is received; A path loss between the transmission point and the UE, the transmission point being switched from a sleep state to an active state. And/or, the transmitting point is configured to increase the first sending power according to the first information, where: the transmitting point is configured according to the sending power information of the trigger signal, and the trigger obtained when the trigger signal is received And determining, by the received power information of the signal, a path loss between the transmission point and the UE; the transmission point increases the first transmission power according to a path loss between the transmission point and the UE.

Specifically, in the case that the first information includes: the sending power information of the trigger signal, the transmission point is based on the sending power information of the trigger signal, and the receiving of the trigger signal acquired when the trigger signal is received The power information determines a path loss between the transmission point and the UE. The transmission point determines whether to provide a service for the UE that sends the trigger signal according to the path loss between the transmission point and the UE. If it is determined that the UE that sends the trigger signal provides the service, when the transmission point is in the dormant state, the transmission point is Sleep The state switches to the active state. Alternatively, when the transmission point is in an active state, the transmission point increases the first transmission power. If it is determined that the UE is not serving the trigger signal, the transmission point does not perform any processing.

 That is, the UE transmits the transmission power information of the transmission trigger signal to the transmission point. After obtaining the transmission power information of the trigger signal, the transmission point may calculate the path loss of the channel on which the UE sends the trigger signal to the transmission point according to the received power information when the trigger signal is received, that is, the transmission point and the Path loss between UEs. Optionally, the transmission point may use a difference between a received power of the received trigger signal and a transmit power when the UE sends the trigger signal as a path loss between the transmission point and the UE.

 After determining, by the transmitting node, the path loss between the transmission point and the UE, determining, according to the path loss between the transmission point and the UE, whether to provide a service for the UE, and the foregoing information including the discovery signal in the first information The process of determining whether to provide a service for the UE is the same according to the path loss between the transmission point and the UE, and is not described here.

 Or, in a case that the first information includes: the power offset information, the transmission point is switched according to the first information, and the transmission point is switched from a dormant state to an active state, where: the transmission point is according to: Determining, by the power offset information, the transmit power information of the discovery signal, the transmit power information of the trigger signal; the transmission point is obtained according to the transmit power information of the trigger signal, and receiving the trigger signal The received power information of the trigger signal determines a path loss between the transmission point and the UE; the transmission point is caused by a path loss between the transmission point and the UE, and the transmission point is suspended by The state switches to the active state. And/or, the transmitting point is configured to increase the first transmit power according to the first information, where: the transmission point determines, according to the power offset information, and the transmit power information of the discovery signal, a transmission power information of the trigger signal; the transmission point determines, between the transmission point and the UE, according to the transmission power information of the trigger signal and the received power information of the trigger signal acquired when the trigger signal is received Path loss; the transmission point increases the first transmission power according to a path loss between the transmission point and the UE.

Specifically, in the case that the first information includes: the power offset information, The transmission point determines the transmission power information of the trigger signal according to the power offset information and the transmission power information of the discovery signal, and obtains according to the transmission power information of the trigger signal and when the trigger signal is received. The received power information of the trigger signal determines a path loss between the transmission point and the UE. Further, the transmission point may determine whether to provide a service for the UE that sends the trigger signal according to the path loss between the transmission point and the UE, and if it is determined that the UE that sends the trigger signal provides the service, when the transmission point is in the dormant state, the transmission is performed. The point is switched from the sleep state to the active state. Alternatively, when the transmission point is in an active state, the transmission point increases the first transmission power. If it is determined that the UE is not serving the trigger signal, the transmission point does not perform any processing.

 That is, after acquiring the transmission power information of the discovery signal, the UE may obtain the power offset information according to the transmission power information of the discovery signal and the transmission power information of the trigger signal, thereby transmitting the power offset information to the transmission point. . After receiving the power offset information, the transmission point can calculate the transmission power of the trigger signal according to the transmission power information of the discovery signal. When receiving the trigger signal, the transmission point can know the received power when the trigger signal is received, so that the transmission point can calculate the path loss of the channel that the UE sends the trigger signal to the transmission point according to the transmission power of the trigger signal and the received power of the trigger signal. That is, the path loss between the transmission point and the UE. Optionally, the transmission point may use a difference between the received power of the receiving trigger signal and the transmission power when the U E sends the trigger signal as a path loss between the transmission point and the U E .

 After determining, by the transmitting node, the path loss between the transmission point and the UE, determining, according to the path loss between the transmission point and the UE, whether to provide a service for the UE, and the foregoing information including the discovery signal in the first information The process of determining whether to provide a service for the UE is the same according to the path loss between the transmission point and the UE, and is not described here.

Or, in a case that the first information includes: first timing offset information, the transmission point is switched according to the first information, and the transmission point is switched from a dormant state to an active state, where: Determining a transmission time of the discovery signal, the first timing offset information, and receiving a reception time of the trigger signal, determining a transmission distance between the transmission point and the UE; the transmission point is according to the transmission point and Transmission distance between the UEs Off, the transmission point is switched from the sleep state to the active state. And/or, the transmitting point is configured to increase the first sending power according to the first information, including: sending, according to the sending time of the discovery signal, the first timing offset information, and receiving the Determining, by the receiving moment of the trigger signal, a transmission distance between the transmission point and the UE; the transmission point increases the first transmission power according to a transmission distance between the transmission point and the UE.

 Specifically, in the case that the first information includes: first timing offset information, the transmission point is according to the sending time of the discovery signal, the first timing offset information, and the receiving moment of receiving the trigger signal. , determining a transmission distance between the transmission point and the UE. The transmitting node determines whether to provide a service for this UE according to its transmission distance with the UE. If it is determined that the UE transmitting the trigger signal is served, the transmission point is switched from the sleep state to the active state when the transmission point is in the sleep state. Alternatively, the transmission point increases the first transmission power when the transmission point is in the active state. If it is determined that the UE that does not send the trigger signal is not served, the transmission point does not perform any processing.

 That is, the UE may acquire the first timing offset information according to the reception time when the discovery signal is received and the transmission time when the trigger signal is transmitted, and send the first timing offset information to the transmission point. After obtaining the first timing offset information, the base station may calculate a propagation delay between the transmission point and the UE according to the sending time of the sending discovery signal and the receiving time of the receiving trigger signal, and then calculate the transmission point between the UE and the UE. Transmission distance.

After determining the transmission distance between the transmission point and the UE, the transmission point may determine whether to provide the service for the UE according to the transmission distance between the transmission point and the UE. The specific method may be to compare the transmission distance with the preset threshold value b. If the transmission distance is greater than the preset threshold b, it indicates that the distance between the transmission point and the UE is far. At this time, the transmission point determines that the UE is not served. When the transmission point is in the sleep state, the transmission point does not adjust its state. Or, when the transmission point is in an active state, the transmission point does not increase its first transmission power, that is, the transmission point does not allow the UE to access. If the transmission distance is less than the preset threshold b, it indicates that the distance between the transmission point and the UE is relatively close. At this time, the transmission point is determined to provide service for the UE. When the transmission point is in the sleep state, the transmission point will be switched from the sleep state to the sleep state. The active state, or, when the transmission point is in an active state, the transmission point adjusts its first transmit power for the UE to access. It should be noted that the threshold a and the threshold b are preset. Of course, it is also possible to directly use the absolute value judgment method without relying on the threshold value, that is, the transmission point itself directly performs switching to the active state or adjusts the power according to the first information, which involves internal implementation of the transmission point. The operation is not specifically limited.

 The embodiment of the present invention provides a method for receiving a trigger signal. After receiving the discovery signal, the transmission point may perform corresponding adjustment processing according to the first information carried in the trigger signal when receiving the trigger signal sent by the UE. In this way, when the transmission point of the common signal of the transmission point is in the dormant state or the transmission point is decreased, the UE may send a trigger signal to the transmission point, and the UE triggers the transmission point to switch from the dormant state to the active state, or increase the transmission of the common signal. The power does not require the participation of the macro base station, so that the triggering transmission point provides services for the UE without the assistance of the macro base station, and the user experience is improved.

 The embodiment of the present invention provides a method for transmitting and receiving a trigger signal, including: 301, a transmission point determines configuration information of a discovery signal, and sends the discovery signal according to configuration information of the discovery signal.

 For details, refer to step 2 0 1 , and details are not described herein again.

 Further, the discovery signal carries state information of the transmission point. The status information indicates whether the transmission point can be triggered by the U E by transmitting the trigger signal.

 3. The UE acquires configuration information of the discovery signal.

 The discovery signal includes: a discovery reference signal or a downlink data packet signal. It should be noted that the corresponding configuration information is different according to the discovery signal.

 In the case that the discovery signal includes: the discovery reference signal, the configuration information of the discovery signal includes: a candidate sequence and/or a time-frequency resource.

 In the case that the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

It should be noted that the configuration information of the discovery signal may also include other information, which is not limited by the present invention. Specifically, the UE can obtain the configuration information of the discovery signal by using two methods.

 One method is that the U E acquires configuration information of the discovery signal by receiving broadcast information of the first transmission point.

 The first transmission point is an adjacent transmission point of the transmission point.

 It should be noted that, in the embodiment of the present invention, when the transmission point is a base station, one base station administers one cell, that is, one base station only corresponds to one cell.

 That is, the UE has camped on or accesses the first transmission point before accessing the transmission point. At this time, the UE can acquire the configuration information of the discovery signal by acquiring the broadcast message of the first transmission point.

 Alternatively, the UE locally acquires configuration information of the discovery signal set in advance.

 That is to say, the UE can preset the configuration information of the discovery signal. At this time, if the UE does not access any transmission point, the configuration information of the preset discovery signal can be directly obtained locally.

 Exemplarily, the UE may set the configuration information in advance: if the candidate sequence is 504 possibilities, it may be carried by 504 sequences, or may be carried by the combination of the primary sequence and the secondary sequence. The candidate sequence can be preset to a Gold sequence. The time-frequency resource can be preset to be within a frequency domain width of 1.4 MHz of the carrier center, and the time domain resource is in the first subframe of the first, 10, and 20 radio frames, that is, the period is 100 ms (millisecond). The modulation coding method can use a predefined QPSK (Quadature Phase Shift Keying) mode, and the coding rate can also be preset to, for example, 1/3; the payload size can be preset to be carried by the data packet channel. The number of bits of the original information, t匕3⁄4 port 40 1; 匕#.

 It should be noted that, in the embodiment of the present invention, the candidate sequence may also be set to other candidate sequences such as a Zadof f Chu sequence J 'J, CAZAC (Constant Amplitude Zero Auto Correlation) sequence, and the like. There is no limit to this.

 303. The UE detects a discovery signal sent by a transmission point.

Specifically, after acquiring the configuration information of the discovery signal in step 302, the UE may The discovery signal is detected based on the configuration information of the discovery signal.

 Further, the specific process of the UE detecting the discovery signal may refer to step 1 0 1 , and details are not described herein again.

 Further, the discovery signal carries state information of the transmission point. The status information indicates whether the transmission point can be triggered by the U E by transmitting the trigger signal.

 3 04. The U E determines a correspondence between configuration information of the discovery signal and configuration information of the trigger signal.

 The trigger signal includes: a trigger reference signal or an uplink data packet signal. In the case that the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: a candidate sequence and/or a time-frequency resource.

 In the case that the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 Specifically, when the configuration information of the trigger signal includes the candidate sequence, the UE may determine that the configuration information of the discovery signal has a corresponding relationship with the candidate sequence of the trigger signal.

 Further, the configuration information of the discovery signal includes a candidate sequence, and U E may determine that the candidate sequence of the discovery signal has a corresponding relationship with the candidate sequence of the trigger signal.

 The correspondence between the candidate sequence of the discovery signal and the candidate sequence of the trigger signal may be a corresponding correspondence, a one-to-many correspondence, or a many-to-one correspondence.

 It should be noted that the candidate sequence of the discovery signal has a corresponding relationship with the candidate sequence of the trigger signal, and may also be other correspondences, for example, a many-to-many correspondence, which is not limited in the present invention.

 When the configuration information of the trigger signal includes a time-frequency resource, the UE may determine a correspondence between the configuration information of the discovery signal and the time-frequency resource of the trigger signal.

 Further, the configuration information of the discovery signal includes a time-frequency resource, and the U E may determine that the time-frequency resource of the discovery signal has a corresponding relationship with the time-frequency resource of the trigger signal.

The time-frequency resources include: frequency resources and time domain resources. At this time, the UE may determine a correspondence between the frequency resource of the discovery signal and the frequency resource of the trigger signal, and a correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal.

 When the configuration information of the trigger signal includes the modulation and coding mode, the UE may determine a correspondence between the configuration information of the discovery signal and the modulation and coding mode of the trigger signal.

 Further, when the configuration information of the discovery signal includes a modulation and coding scheme, the UE may determine a correspondence between a modulation and coding scheme of the discovery signal and a modulation and coding scheme of the trigger signal.

 When the configuration information of the trigger signal includes the payload size, the UE may determine a correspondence between the configuration information of the discovery signal and the payload size of the trigger signal.

 Further, when the configuration information of the discovery signal includes the payload size, the UE may determine a correspondence between the load size of the discovery signal and the load of the trigger signal.

 It should be noted that, when the UE determines the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, the configuration information of the discovery signal and the configuration information of the trigger signal may be different. For example, when the configuration information of the discovery signal is a candidate sequence, and the configuration information of the trigger signal is a time-frequency resource, the U E may determine a correspondence between the candidate sequence of the discovery signal and the time-frequency resource of the trigger signal.

 It should be noted that the transmission power information of the trigger signal is used as the configuration information of the trigger signal, and the transmission power information of the trigger signal may not be used as the configuration information of the trigger signal. At this time, the UE triggers the transmission power information of the trigger signal. The configuration information of the signal is different from the steps described below. If the transmission power information of the trigger signal is used as the configuration information of the trigger signal, steps 305a-307a, 309-315 are performed, as shown in FIG. If the transmission power information of the trigger signal is not used as the configuration information of the trigger signal, the block performs a step 305b_308b, 309-315, and FIG.

 305a. The UE acquires sending power information of the discovery signal according to the discovery signal.

The discovery signal carries the transmission power information of the discovery signal. Specifically, when the transmission point broadcasts the discovery signal, the power information of the transmission discovery signal is added to the discovery signal. At this time, after receiving the discovery signal, the UE sends the discovery signal. The sending signal can obtain the sending power information of the discovery signal carried in the discovery signal.

 305b. The UE acquires configuration information of the trigger signal according to the discovery signal.

 For example, the UE obtains the configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship, and may refer to step 102, and details are not described herein.

 306a. The UE determines a path loss according to the transmit power information of the discovery signal and the received power information of the discovery signal.

 Specifically, after receiving the discovery signal, the UE may obtain the transmission power information carried in the discovery signal. When receiving the discovery signal, the UE may acquire the received power information of the signal when receiving the discovery signal. Thereby, the path loss of the channel through which the transmission point transmits the discovery signal to the UE can be calculated. Optionally, the UE may use the difference between the transmit power of the transmit discovery signal and the received power when the UE receives the discovery signal as the path loss.

 306b. The UE acquires sending power information of the discovery signal according to the discovery signal.

 The discovery signal carries the transmission power information of the discovery signal. Specifically, when the transmission point broadcasts the discovery signal, the power information of the discovery signal is added to the discovery signal. At this time, after receiving the discovery signal, the UE can obtain the transmission of the discovery signal carried in the discovery signal by parsing the transmission signal. Power information.

 307a. The UE acquires configuration information of the trigger signal according to the discovery signal.

Specifically, the UE acquires the configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship, and may refer to step 102, and details are not described herein again. When the configuration information of the trigger signal further includes: the transmit power information of the trigger signal, after acquiring the path loss, the UE may determine the transmit power information of the transmit trigger signal according to the path loss, thereby determining the configuration of the trigger signal. The transmission power information of the trigger signal in the message. After the UE determines the transmission power information of the trigger signal, it can avoid that the transmission power of the transmission trigger signal is too small, and the transmission point cannot receive the trigger signal. It can also avoid the transmission power of the trigger signal being too large, and the uplink signal to other neighboring transmission points. The number causes interference.

 The UE determines the path loss according to the transmit power information of the discovery signal and the received power information of the discovery signal.

 Specifically, after receiving the discovery signal, the UE may obtain the transmission power information carried in the discovery signal. When receiving the discovery signal, the UE may acquire the received power information of the signal when receiving the discovery signal. Thereby, the path loss of the channel through which the transmission point transmits the discovery signal to the UE can be calculated. Optionally, U E may use the difference between the transmit power of the transmit discovery signal and the received power when the UE receives the discovery signal as the path loss.

 3 0 8 b , the UE determines the transmit power of the transmit trigger signal according to the path loss.

 Specifically, after acquiring the path loss, the UE may set the transmit power of the trigger signal according to the path loss, so as to prevent the transmit power of the transmit trigger signal from being too small, and the transmission point does not receive the trigger signal. It is also possible to avoid excessive transmission power of the transmission trigger signal and interference to the uplink signals of other adjacent transmission points.

 3 0 9. The UE acquires the first information.

 Specifically, the first information includes: at least one of received power information of the discovery signal, transmission power information of the trigger signal, power offset information, and first timing offset information.

 The power offset refers to an offset between the transmit power of the trigger signal and the transmit power of the discovery signal. The first timing offset information refers to the UE receiving the discovery signal and The time interval between sending the trigger signals.

 Further, according to different contents included in the first information, the method for obtaining the first information by the U E is different, and is specifically as follows.

 When the first information includes the received power information of the discovery signal, the UE acquires the received power information of the discovery signal according to the discovery signal.

 That is to say, when receiving the discovery signal, the UE can acquire the received power information of the received discovery signal.

When the first information includes the transmission power information of the trigger signal, the UE may send a trigger signal to the transmission point. At this time, the UE may determine the transmission function of the trigger signal by using step 308. Rate information.

 When the first information includes the power offset information, the UE determines the power offset information according to the transmit power information of the discovery signal and the transmit power information of the trigger signal.

 That is to say, when the UE acquires the transmission power of the discovery signal and determines the transmission power of the trigger signal, the power offset between the transmission power of the discovery signal and the transmission power of the trigger signal can be calculated.

 When the first information includes the first timing offset information, the UE determines the first timing offset information according to a time when the discovery signal is received and a time when the trigger signal is sent.

 3 1 0. The UE sends the trigger signal to the transmission point.

 The trigger signal carries the first information.

 Specifically, when the configuration information of the trigger signal includes the transmission power information of the trigger signal, the UE may directly send the trigger signal to the transmission point according to the configuration information of the trigger signal. For details, refer to step 1 0 2, and details are not described here.

 When the configuration information of the trigger signal does not include the transmission power information of the transmission trigger signal, the UE sends the trigger to the transmission point according to the configuration information of the trigger signal and the transmission power information of the trigger signal. signal.

 Specifically, U E sends the trigger signal to the transmission point according to the configuration information of the trigger signal, using the transmission power recorded in the transmission power information of the trigger signal. At this time, the UE may send the trigger signal to the transmission point according to the configuration information of the trigger signal, and may refer to step 1 0 2 , and details are not described herein again.

 The transmission point determines the configuration information of the trigger signal, and the receiving the trigger signal sent by the UE according to the configuration information of the trigger signal may refer to step 2 0 2 , and details are not described herein.

Further, when the discovery signal carries the status information of the transmission point, when the status information indicates that the transmission point can be triggered by the UE by sending the trigger signal, the UE is triggered according to the triggering The configuration information of the signal is sent to the transmission point. That is, after the UE obtains the status information of the transmission point, if the identification point in the status information of the transmission point can be triggered by the trigger signal, the UE may send a trigger signal to the transmission point to trigger the transmission point to determine whether to allow the UE to access. . If the status of the transmission point, the identification transmission point in the transmission point can not be triggered by the trigger signal, the UE cannot trigger the transmission point to determine whether to allow the UE to access by sending a trigger signal to the transmission point.

 At this time, the UE, according to the status information of the received transmission point, knows that the transmission point can be triggered by the UE by sending a trigger signal, and the UE sends a trigger signal to the transmission point.

 The transmission point determines a correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal.

 Specifically, the transmission point determines that the configuration information of the discovery signal has a corresponding relationship with the configuration information of the trigger signal, and may refer to the UE to determine that the configuration information of the discovery signal and the configuration information of the trigger signal have a corresponding relationship. The process is not repeated here.

 The transmission point determines the configuration information of the trigger signal, and receives the trigger signal sent by the UE according to the configuration information of the trigger signal.

 Specifically, the transmission point determines configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship. The process of determining the configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship may be referred to by the U E, and details are not described herein.

 The receiving point that the transmission point receives the trigger signal sent by the UE according to the configuration information of the trigger signal may refer to step 2 0 2 , and details are not described herein again.

 3 1 3, the transmission point acquires the first information from the trigger signal.

 For details, refer to step 2 0 3, and details are not described herein again.

 3 1 4, the transmission point adjusts the state according to the first information or increases the first transmission power. For details, refer to step 2 0 4, and details are not described herein again.

 3: The transmission point sends a response message of the trigger signal to the UE, and the UE receives a response message of the trigger signal sent by the transmission point.

The response message of the trigger signal is used to indicate whether the transmission point can provide services for the UE. Specifically, after the transmission point determines whether to provide the service for the UE according to the first information, if it is determined to provide the service for the UE, when the state adjustment or the first transmission power is adjusted, the UE may also send an indication to the UE whether to provide the UE. The response message of the service's trigger signal.

 It should be noted that when the transmission point is determined to provide the UE with the service, the UE successfully triggers the transmission point. When the transmission point determines that the UE is not providing the service, the UE does not successfully trigger the transmission point, that is, the response of the trigger signal. The message is used to indicate whether the transmission point can provide services for the UE, that is, the response message for the trigger signal is used to indicate whether the transmission point is successfully triggered by the UE.

 It should be noted that the transmission point may also send the response message of the trigger signal only to the UE. At this time, as long as the UE receives the response message, it can be known that the transmission point can provide the UE with the service, that is, the UE successfully triggers the transmission point. And when the transmission point determines that the UE is not served, that is, when the transmission point is not successfully triggered by the UE, the transmission point may not send any message to the UE. At this time, when the UE does not receive any message, it can be known that the transmission point cannot be The UE provides the service.

 The transmission point may also add information indicating whether the transmission point is serving the UE in the response message of the trigger signal, so that after the UE receives the response message of the trigger signal, the indication that the transmission point is carried in the response message of the trigger signal is provided by the UE. The service information, to know whether the transmission point provides services for the UE. At this time, regardless of whether the transmission point determines whether to provide services for the UE, the transmission point needs to send a response message of the trigger signal to the UE. And when the transmission point determines that the UE is serving the service, the response message of the trigger signal sent by the transmission point to the UE carries information indicating that the UE is served. When the transmission point determines that the UE is not provided with the service, the response message of the trigger signal sent by the transmission point to the U E carries information indicating that the UE is not served.

 Further, when the transmission point is determined to provide the service for the UE, the information that the service message indicates that the service is provided for the UE may be the random access resource information of the transmission point, the system bandwidth information, etc., of course, may also be other transmission points. The system configuration information is not limited by the present invention.

The embodiment of the invention provides a method for transmitting and receiving a trigger signal. After detecting the discovery signal, the user equipment UE acquires a configuration signal of the trigger signal according to the discovery signal. The UE may send a trigger signal to the transmission point according to the configuration information of the trigger signal, so that the transmission point acquires the first information after receiving the trigger signal, and when the transmission point is in the sleep state, the transmission point is according to the The first information, the transmission point is switched from the sleep state to the active state; and/or, when the transmission point is in an active state, the transmission point increases the first transmission power according to the first information. In this way, when the transmission point of the common signal of the transmission point is in the dormant state or the transmission point is decreased, the UE may send a trigger signal to the transmission point, and the UE triggers the transmission point to switch from the dormant state to the active state, or increase the transmission of the common signal. The power does not require the participation of the macro base station, so that the triggering transmission point provides services for the UE without the assistance of the macro base station, and the user experience is improved.

 As shown in FIG. 6, it is a schematic diagram of a function of a user equipment UE according to an embodiment of the present invention. Referring to FIG. 6, the UE includes: a detecting unit 5 0 1 , an acquiring unit 5 0 2 , and a transmitting unit 5 0 3 .

 The detecting unit 5 0 1 is configured to detect a discovery signal sent by the transmission point.

 The discovery signal is sent by the transmission point, and is used by the UE to discover a signal of the transmission point. The transmission point can be a base station or a first UE.

 It should be noted that the first UE is a UE other than the UE. At this time, when the transmission point is a base station, the discovery signal is sent by the base station, and the UE is used to discover the signal of the base station. Or, when the transmission point is the first UE, the discovery signal is sent by the first UE, and the UE is used to discover the signal of the first U E, and the communication evolves into direct communication or discovery between the UEs. In the present invention, the above two cases are not limited. In the following description, the discovery signal is sent by the base station as an example for description. The implementation manner of transmitting the discovery signal for the first U E is similar and will not be described again.

 Specifically, when the UE enters the coverage of a certain cell, the transmission point may broadcast a discovery signal to the UE, and the detection unit 5 0 1 of the U E may detect the discovery signal.

 At this time, the discovery signal may be sent when the transmission point is in a dormant state, and is used for the UE to discover the cell under the jurisdiction of the transmission point when the transmission point is in the dormant state, and perform measurement on the cell, such as reference signal receiving power or reference. Measurement of signal reception quality, etc. Of course, it can also be sent in the active state, and the action is the same as in the sleep state, and is not limited.

The base station defined here is in a dormant state, meaning that the transmission point is in a closed power saving state. In this state, the transmission point only sends the discovery signal; while the base station is in the active state, the transmission point is in the normal service state. In addition to the continuous transmission of the discovery signal, the synchronization signal for the UE to normally access needs to be transmitted. Channel, common reference signal, control channel and data channel.

 Further, the discovery signal includes: a discovery reference signal or a downlink data packet signal.

 It should be noted that, before detecting the discovery signal, the UE needs to acquire the configuration information of the discovery signal, so that the discovery signal can be detected according to the configuration information.

 It should be noted that the configuration information of the discovery signal is configuration information when the discovery signal is received or transmitted. For the UE, the configuration information of the UE acquiring the discovery signal refers to that the UE acquires configuration information when receiving the discovery signal.

 At this time, the detecting unit 510 can detect the discovery signal according to the acquired configuration information of the discovery signal.

 It should be noted that the configuration information of the discovery signal is configuration information when the discovery signal is received or transmitted. For the UE, the configuration information of the UE acquiring the discovery signal refers to that the UE acquires configuration information when receiving the discovery signal.

Further, the discovery signal includes: a discovery reference signal or a downlink data packet signal. In the case that the discovery signal includes: the discovery reference signal, the configuration information includes a candidate sequence of the discovery signal and/or a time-frequency resource. Wherein, the candidate sequence may be Za do ff — Chu /f>歹'], M / >歹] Go 1 d /f>歹'], more than ¹ ■! ^ / l Day step resource can indicate that the resource is sent The base station of the discovery signal determines the cell identity of the cell, such that the detecting unit 510 can distinguish different cells by detecting the discovery signal. When the discovery signal is a downlink data packet signal, the configuration information may include information such as a modulation and coding mode, a payload size, and the like. The configuration information may be pre-configured or configured by the signaling to the UE.

Taking the discovery reference signal as an example, the detecting unit 510 detects the discovery signal, which can be understood as the detecting unit 901 detecting all candidate sequences, and matching the actual sequence used by the base station to actually send the discovery signal, where the actual sequence is a candidate sequence. One, further determining, by the actual sequence, that the base station governs the cell identity of the current cell, that is, when found Pre-cell.

 In the case that the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 Further, the discovery signal carries state information of the transmission point.

 The status information indicates whether the transmission point can be triggered by the UE by sending the trigger signal.

 The obtaining unit 502 is configured to acquire configuration information of the trigger signal according to the discovery signal detected by the detecting unit 501.

 The trigger signal is sent by the UE, and is used to trigger the signal that the transmission point provides a service for the UE.

 The configuration information of the trigger signal is configuration information when the trigger signal is received or transmitted. For the UE in the embodiment of the present invention, the configuration information of the trigger signal is configuration information when the trigger signal is sent. For example, the configuration information includes: a sequence and/or time-frequency resource information used when transmitting the trigger information, and a transmission power information when the trigger information is sent. Alternatively, the configuration information includes: a sequence and/or time-frequency resource information used when transmitting the trigger information.

 Specifically, before the detecting unit of the UE detects the discovery signal, the acquiring unit 502 can determine the actual configuration information of the discovery signal, such as the actual sequence and/or the actual time-frequency resource, and the acquiring unit 102 of the UE can be configured according to The actual configuration information of the discovery signal acquires configuration information of the trigger signal.

 That is, the obtaining unit 502 is further configured to acquire configuration information of the discovery signal. In this case, the detecting unit 510 is specifically configured to detect the discovery signal according to the configuration information of the discovery signal acquired by the acquiring unit 52.

 Specifically, the acquiring unit 502 is configured to obtain configuration information of the discovery signal by receiving broadcast information of the first transmission point.

 The first transmission point is an adjacent transmission point of the transmission point.

Or the acquiring unit 502 is specifically configured to locally acquire configuration information of the discovery signal that is preset. The sending unit 503 is configured to send the trigger signal to the transmission point according to the configuration information of the trigger signal acquired by the acquiring unit 502.

 The trigger signal carries the first information. The first information includes: at least one of received power information of the discovery signal, transmission power information of the trigger signal, power offset information, and first timing offset information.

 The power offset refers to an offset value between a transmission power of the trigger signal and a transmission power of the discovery signal. The first timing offset information refers to a time interval between the UE receiving the discovery signal and transmitting the trigger signal.

 Specifically, the sending unit 503 is specifically configured to: after the acquiring unit 502 learns the resource information used when the trigger signal is sent, add the first information to the trigger signal, so as to trigger the signal according to the configuration information. Sending to the transmission point, so that after receiving the trigger signal, the transmission point may determine that the transmission point is switched from the sleep state to the active state according to the first information in the trigger signal, or when the transmission point is in an active state, according to the The first information increases the first transmission power.

 Further, the method for carrying the first information by the trigger signal is as follows.

 Specifically, the sending unit 503 is specifically configured to directly add the first information to the load of the trigger signal, and directly load the first information by the load of the trigger signal, that is, load data that uses the first information as a trigger signal, The first information is added to the trigger signal.

 Alternatively, the sending unit 503 is specifically configured to carry the first information by using configuration information of the trigger signal. At this time, instead of directly adding the content of the first information to the configuration information of the trigger signal, the correspondence between the first information and the configuration information of the trigger signal is established in advance. At this time, after receiving the trigger signal, the configuration information of the trigger signal can be obtained, so that the first information can be obtained according to the configuration information of the trigger signal and the correspondence between the configuration information of the first information and the trigger signal. That is, the first information is carried by the configuration information of the trigger signal.

 It should be noted that, by using the trigger signal to carry the first information, other methods may also be used, which are not limited by the present invention.

 Further, the discovery signal carries state information of the transmission point.

The status information indicates whether the transmission point can be sent by the UE. Trigger by sending the trigger signal.

 At this time, the sending unit 503, according to the configuration information of the trigger signal, sending the trigger signal to the transmission point, specifically includes: the status information indicating that the transmission point can be transmitted by the UE by using When triggered by the manner of the trigger signal, the UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal.

 Further, the first information carried in the trigger signal sent by the sending unit 503 includes different contents, and the content that the acquiring unit 5 02 needs to obtain in the first information is different.

 The acquiring unit 502 is further configured to: when the first information includes: the received power information of the discovery signal, acquire the received power information of the discovery signal according to the discovery signal.

 The acquiring unit 502 is further configured to: when the first information includes: the first timing offset information, determine the time according to a time when the discovery signal is received and a time when the trigger signal is sent. First timing offset information.

 Further, the acquiring unit 502 is further configured to: according to the power offset information, the sending power information of the discovery signal, and the sending power of the trigger signal, where the first information includes: Information, the power offset information is determined. The discovery signal carries the transmission power information of the discovery signal.

 Further, the acquiring unit 502 is further configured to acquire sending power information of the discovery signal.

 The acquiring unit 502 is specifically configured to determine a path loss according to the obtained sending power information of the discovery signal and the received power information of the discovery signal.

 The acquiring unit 502 is further configured to determine, according to the path loss, transmit power information of a sending trigger signal. The configuration information of the trigger signal further includes: sending power information of the trigger signal.

 Or the acquiring unit 502 is further configured to acquire, according to the discovery signal, the sending power information of the discovery signal.

The acquiring unit 502 is specifically configured to determine a path loss according to the obtained transmit power information of the discovery signal and the received power information of the discovery signal. The obtaining unit 502 is further configured to determine, according to the path loss, transmit power information of a sending trigger signal.

 In this case, the sending unit 503 is specifically configured to send the trigger signal to the transmission point according to the configuration information of the trigger signal acquired by the acquiring unit 502 and the sending power information of the trigger signal.

 Further, the foregoing UE, as shown in FIG. 7, further includes: a determining unit 504. The determining unit 5 04 is configured to determine a correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal.

 The obtaining unit 502 is configured to acquire configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship determined by the determining unit 504.

 Further, the trigger signal includes: a trigger reference signal or an uplink data packet signal.

 Further, in the case that the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: a candidate sequence and/or a time-frequency resource.

 Specifically, the obtaining unit 502 can determine the configuration information of the trigger signal according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal.

 At this time, when the configuration information of the trigger signal includes the candidate sequence, the obtaining unit 502 is specifically configured to use the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, and the candidate for the trigger signal from the configuration information of the discovery signal. The sequence has corresponding information to determine the candidate sequence to use when actually transmitting the trigger signal.

 Further, the acquiring unit 502 is specifically configured to include a candidate sequence in the configuration information of the discovery signal, and when the candidate sequence of the discovery signal has a correspondence relationship with the candidate sequence of the trigger signal, according to the candidate sequence of the discovery signal, and the corresponding relationship, A candidate sequence for the trigger signal is determined.

The correspondence between the candidate sequence of the discovery signal and the candidate sequence of the trigger signal may be a corresponding correspondence relationship, or may be a one-to-many correspondence relationship, or may be a many-to-one correspondence relationship. In addition, the sequence of the found signal and the sequence of the trigger signal may be of the same type, for example, both Za do ff _Chu sequence 歹 'J or both are M order 歹 'J, or may be Different types of sequences, such as the sequence of the discovery signal, are the M sequence or the Go ld sequence, and the sequence of the trigger signal is the Za do ff -Chu sequence 歹 'J.

 It should be noted that the candidate sequence of the discovery signal has a corresponding relationship with the candidate sequence of the trigger signal, and may also be other correspondences, such as a many-to-many correspondence, and the correspondence may be preset or may be notified by signaling. UE, the present invention does not limit this.

 Specifically, the acquiring unit 502 is specifically configured to: if the correspondence between the candidate sequence of the discovery signal and the candidate sequence of the trigger signal is a corresponding correspondence relationship, after determining the candidate sequence of the discovery signal, according to the discovery signal A corresponding sequence of the candidate sequence and the candidate sequence of the trigger signal determines a candidate sequence of the trigger signal.

 Or the obtaining unit 502 is specifically configured to: if the correspondence between the candidate sequence of the discovery signal and the candidate sequence of the trigger signal is a one-to-many correspondence relationship, after determining the candidate sequence of the discovery signal, according to the discovery signal A one-to-many correspondence between the candidate sequence and the candidate sequence of the trigger signal determines a candidate sequence of a set of trigger signals. At this time, the obtaining unit 520 may select a candidate sequence of the trigger signal from the candidate sequences of the set of trigger signals as a candidate sequence in the configuration information of the trigger signal. Further, the obtaining unit 5 02 is specifically configured to randomly select a candidate sequence of the trigger signal from the candidate sequences of the set of trigger signals as a candidate sequence in the configuration information of the trigger signal. Or, according to other information in the configuration information of the discovery signal (such as the received power information of the currently found signal, etc.), a candidate sequence of the trigger signal is selected as a candidate sequence in the configuration information of the trigger signal.

 It should be noted that the obtaining unit 052 selects a candidate sequence of a trigger signal from a candidate sequence of a set of trigger signals, and the method for using the candidate sequence in the configuration information of the trigger signal may be other manners, and the present invention does not limit.

Alternatively, the determining unit 505 is specifically configured to: if the correspondence between the candidate sequence of the discovery signal and the candidate sequence of the trigger signal is a many-to-one correspondence, after determining the candidate sequence group of the discovery signal, A plurality of one-to-one correspondence between the candidate sequence group of the signal and the candidate sequence of the trigger signal is found, and a candidate sequence of a trigger signal corresponding to the candidate sequence group of the discovery signal is determined. At this time, the acquiring unit 502 may also directly use the candidate sequence of the detected discovery signal to directly select the candidate sequence of the trigger signal without determining the candidate sequence group of the discovery signal, because multiple signals are found at this time. The candidate sequences all correspond to the candidate sequence of the trigger signal, and then any one of the plurality of candidate sequences is detected to be a candidate sequence, which can uniquely correspond to the candidate sequence of the trigger signal.

 It should be noted that, when other information is included in the configuration information of the discovery signal, for example, the time-frequency resource, the other information in the configuration information of the discovery signal may correspond to the candidate sequence of the trigger signal, for example, the signal is found. The time-frequency resource of the configuration information has a corresponding relationship with the candidate sequence of the trigger signal. The obtaining unit 502 is configured to obtain configuration information of the trigger signal according to other information of the configuration information of the discovery signal and the correspondence between the other information in the configuration information of the discovery signal and the candidate sequence of the trigger signal. The present invention does not limit the specific information in the configuration information of the discovery signal that corresponds to the candidate sequence of the trigger signal.

 When the configuration information of the trigger signal includes the time-frequency resource, the acquiring unit 502 is specifically configured to: according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, the configuration information of the discovery signal and the trigger signal The time-frequency resource has corresponding information, and the time-frequency resource of the trigger signal is determined.

 Further, the acquiring unit 502 is specifically configured to include a time-frequency resource in the configuration information of the discovery signal, and when the time-frequency resource of the discovery signal has a corresponding relationship with the time-frequency resource of the trigger signal, the time-frequency resource according to the discovery signal And the corresponding relationship, determining the time-frequency resource of the trigger signal.

 The time-frequency resources include: frequency resources and time domain resources.

 At this time, the acquiring unit 502 is specifically configured to determine a frequency resource of the trigger signal according to the frequency resource of the discovery signal and the corresponding relationship. The time domain resources of the trigger signal are determined according to the time domain resources of the discovery signal and their corresponding relationships.

Specifically, the correspondence between the frequency resource of the discovery signal and the frequency resource of the trigger signal may be a correspondence between a downlink frequency resource that sends the discovery signal and an uplink frequency resource that sends the trigger signal. For example, the transmission point sends a discovery signal through a certain frequency resource of the downlink carrier, and the UE can use the uplink frequency resource corresponding to the downlink frequency resource. The frequency resource in the configuration information of the trigger signal.

 It should be noted that, when acquiring the frequency resource in the configuration information of the trigger signal, the acquiring unit 502 may not acquire the configuration information of the discovery signal. In this case, the UE may define the frequency resource by itself.

 The correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal may be - a corresponding correspondence relationship, or a one-to-many correspondence relationship.

 Specifically, the acquiring unit 502 is specifically configured to: when the corresponding relationship between the time domain resource of the discovery signal and the time domain resource of the trigger signal is the corresponding correspondence, the transmission point is received in the subframe N. After the signal is found, the time domain resource in the configuration information that uses the subframe N+4 as the trigger signal may be determined according to the corresponding correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal.

 It should be noted that the acquiring unit 5 02 may also use other subframes such as the subframe N+M as the time domain resource in the configuration information of the trigger signal, and M is a positive integer greater than 0. The invention is not limited thereto. Other timing relationships can also be utilized to determine the time domain resources of the trigger signal based on the time domain resources of the discovery signal. The invention is not limited thereto.

 Or the acquiring unit 502 is specifically configured to: if the correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal is a one-to-many correspondence relationship, after the subframe N receives the discovery signal sent by the transmission point, The time domain resource in the configuration information that uses the subframe N+i as the trigger signal may be determined according to a one-to-many correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal.

 Preferably, i is an integer multiple of four.

It should be noted that the acquiring unit 502 may randomly determine the value of i, and use the subframe N+i as the time domain resource in the configuration information of the trigger signal. Of course, the value of i can also be determined according to the identification information of the UE, and the subframe N+i is used as the time domain resource in the configuration information of the trigger signal. The multiple time domain resources of the foregoing N+i are generally discontinuous subframes. As long as i is not equal to 1, the above correspondence may also correspond to a series of consecutive subframes as time domain resources, for example, consecutive j subframes starting from N+i. That is, N+ i , N+ i + 1 , N+ i + j - 1 _{0 It} should be noted that the acquiring unit 502 may also acquire time domain resources in the configuration information of the trigger signal by other methods, for example, the UE itself Trigger signal The time domain resource in the configuration information is not limited by the present invention.

 It should be noted that, when other information is included in the configuration information of the discovery signal, for example, the candidate sequence, the other information in the configuration information of the discovery signal may correspond to the time-frequency resource of the trigger signal, for example, the candidate sequence and the trigger. The time-frequency resources of the signals have a corresponding relationship. The obtaining unit 5 02 can obtain the configuration information of the trigger signal according to other information of the configuration information of the discovery signal and other information in the configuration information of the discovery signal and the time-frequency resource of the trigger signal. The present invention does not limit the specific information corresponding to the time-frequency resource of the trigger signal in the configuration information of the discovery signal.

 In the case that the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 At this time, the acquiring unit 502 is specifically configured to: when the configuration information of the trigger signal includes the modulation and coding mode, according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, the configuration information of the discovery signal The information corresponding to the modulation and coding mode of the trigger signal is determined, and the modulation and coding mode of the trigger signal is determined.

 Optionally, the acquiring unit 502 is specifically configured to include a modulation and coding mode in the configuration information of the discovery signal, where the information corresponding to the modulation and coding of the trigger signal in the configuration information of the discovery signal is a modulation and coding mode, according to the discovery The modulation and coding mode of the signal, and the correspondence between the modulation and coding mode of the discovery signal and the modulation and coding mode of the trigger signal determine the modulation and coding mode of the trigger signal.

 It should be noted that the information corresponding to the modulation and coding mode of the trigger signal in the configuration information of the discovery signal may be other information, such as a candidate sequence of the discovery signal, a time-frequency resource, etc., which is not limited by the present invention.

 The acquiring unit 502 is specifically configured to: when the configuration information of the trigger signal includes the load size, according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, the configuration information of the discovery signal and the load of the trigger signal The size has corresponding information, and the load size of the trigger signal is determined.

Optionally, the acquiring unit 502 is specifically configured to include a payload size in the configuration information of the discovery signal, where the modulation information of the trigger signal is configured in the configuration information of the discovery signal. When the corresponding information is the load size, the load of the trigger signal is determined according to the load of the discovery signal and the correspondence between the load size of the discovery signal and the load of the trigger signal.

 It should be noted that the information corresponding to the load size of the trigger signal in the configuration information of the discovery signal may be other information, such as a candidate sequence of the discovery signal, a time-frequency resource, etc., which is not limited by the present invention.

 It should be noted that the acquiring unit 502 obtains the configuration information of the trigger signal according to the configuration information of the discovery signal and the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal. The present invention does not limit the specific content of the configuration information of the discovery signal. The correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal can be set in advance.

 Further, the foregoing UE, as shown in FIG. 7, further includes: a receiving unit 505. The receiving unit 5 05 is configured to receive a response message of the trigger signal sent by the transmission point.

 An embodiment of the present invention provides a UE, after detecting a discovery signal, acquiring configuration information of a trigger signal according to the discovery signal, and the UE may send a trigger signal to the transmission point according to the configuration information of the trigger signal, so that the transmission point is receiving. After the trigger signal, obtaining the first information, when the transmission point is in the sleep state, the transmission point is switched from the sleep state to the active state according to the first information; and/or, When the transmission point is in an active state, the transmission point increases the first transmission power according to the first information. In this way, when the transmission point of the common signal of the transmission point is in the sleep state or the transmission point is decreased, the UE may send a trigger signal to the transmission point, and the UE triggers the transmission point to switch from the sleep state to the active state, or increases the transmission of the common signal. The power does not require the participation of the macro base station, so that the triggering transmission point provides services for the UE without the assistance of the macro base station, and the user experience is improved.

 As shown in FIG. 8, the embodiment of the present invention provides a function diagram of a transmission point. Referring to FIG. 8, the transmission point includes: a determining unit 7 01 , a transmitting unit 7 02 , a receiving unit 7 0 3 , an obtaining unit 7 04 , and a processing unit 7 05 .

The determining unit 710 is configured to determine configuration information of the discovery signal. The sending unit 7 0 2 is configured to send the discovery signal according to the configuration information of the discovery signal determined by the determining unit 701.

 The discovery signal is sent by the transmission point, and is used by the user equipment UE to discover the signal of the transmission point. The transmission point can be a base station or a first U E.

 It should be noted that the configuration information of the discovery signal is configuration information when the discovery signal is received or transmitted. For a transmission point, the transmission point determines that the configuration information of the discovery signal is that the transmission point determines configuration information when transmitting the discovery signal.

 It should be noted that the first UE is a UE other than the UE. At this time, when the transmission point is a base station, the discovery signal is sent by the base station, and is used by the UE to discover the signal of the base station. Or, when the transmission point is the first UE, the discovery signal is sent by the first UE, and is used by the UE to discover the signal of the first UE. At this point the communication evolves into a direct communication or discovery between the UEs. In the present invention, the above two cases are not limited. In the following description, the discovery signal is sent by the base station as an example for description. The implementation manner of transmitting the discovery signal by the first UE is similar and will not be described again.

 Specifically, the configuration information of the discovery signal may be preset in the transmission point, that is, the resource information when transmitting the discovery signal, such as time-frequency information, candidate sequence, etc., may be set in advance for the transmission point.

 At this time, the sending unit 7 0 2 is further configured to: when the determining unit 7 0 1 determines the configuration information of the discovery signal, when the transmission point is in a sleep state, or the transmission point is in an active state, but the transmission is reduced. When the transmission power of the common signal is transmitted, the discovery signal is transmitted by broadcasting according to its configuration information in a certain period, so that the UE around the transmission point discovers and accesses the transmission point.

 It should be noted that the sending unit 702 is also used to transmit the discovery signal by means of broadcast when the transmission point is in the active state and the transmission power of the common signal is not reduced. The present invention does not limit this.

 Further, the discovery signal carries the transmission power information of the discovery signal. The transmitting unit 7 0 2 is further configured to add the transmission power information of the discovery signal to the discovery signal.

Specifically, the sending unit 7 0 2 adds the sending power information of the discovery signal. The method to find the signal is as follows:

 The sending unit 702 is specifically configured to directly add the transmit power information of the discovery signal to the payload of the discovery signal, and directly transmit the transmit power information of the discovery signal by the payload of the discovery signal, that is, the transmit power information of the discovery signal is used as The load data of the signal is found, and the transmission power information of the found signal is added to the discovery signal.

 Alternatively, the sending unit 702 is specifically configured to carry the transmission power information of the discovery signal through the candidate sequence of the discovery signal. At this time, the transmission point and the UE need to preset the transmission power information of the discovery signal and the candidate sequence of the discovery signal. Correspondence. At this time, the sending unit 702 is specifically configured to set a candidate sequence of the discovery signal according to the transmission power information of the discovery signal, and send the discovery signal to the UE, so that after receiving the discovery signal, the UE may be based on the preset discovery. The correspondence between the transmission power information of the signal and the candidate sequence of the discovery signal, and the candidate sequence in the discovery signal, determine the transmission power of the discovery signal.

 It should be noted that, in the embodiment of the present invention, the sending unit 702 adds a specific method for detecting the transmission power information of the signal, and may also be other methods, and the present invention does not limit this.

 It should be noted that the method for the sending unit to send the discovery signal to the UE may be other methods, which is not limited in the present invention.

 Further, the discovery signal includes: a discovery reference signal or a downlink data packet signal.

 It should be noted that the discovery signals are different, and the corresponding configuration information is different.

 In the case that the discovery signal includes: the discovery reference signal, the configuration information of the discovery signal includes: a candidate sequence and/or a time-frequency resource.

 In the case that the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 Further, the discovery signal carries state information of the transmission point.

The status information indicates whether the transmission point can be triggered by the UE by sending the trigger signal. The determining unit 7 0 1 is further configured to determine configuration information of the trigger signal.

 Specifically, after determining the configuration information of the discovery signal, the determining unit 7 0 1 can obtain the configuration information of the trigger signal according to the configuration information of the discovery signal.

 The receiving unit 703 is configured to receive the trigger signal sent by the UE according to the configuration information of the trigger signal determined by the determining unit 701.

 The trigger signal carries the first information. The first information includes: at least one of received power information of the discovery signal, transmission power information of the trigger signal, power offset information, and first timing offset information.

 The power offset refers to an offset value between a transmission power of the trigger signal and a transmission power of the discovery signal. The first timing offset information refers to a time interval between the UE receiving the discovery signal and transmitting the trigger signal.

 It should be noted that the configuration information of the trigger signal is configuration information when receiving or transmitting the trigger signal. For the transmission point in the embodiment of the present invention, the configuration information of the trigger signal is configuration information when the trigger signal is received. For example, the configuration information includes: sequence and/or time-frequency resource information used when receiving the trigger information, and transmission power information when the trigger information is received. Alternatively, the configuration information includes: a sequence and/or time-frequency resource information used when receiving the trigger information, and the like.

 Further, the trigger signal includes: a trigger reference signal or an uplink data packet signal.

 It should be noted that the corresponding configuration information is different according to the trigger signal.

 In the case that the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: a candidate sequence and/or a time-frequency resource.

 In the case that the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 There are several methods for receiving the first information carried by the trigger signal by the receiving unit 703.

Specifically, the first information is directly carried by the load of the trigger signal, that is, the first letter is The payload is used as the load data of the trigger signal.

 Alternatively, the first information is carried by the configuration information of the trigger signal. In this case, the content of the first information is not directly carried in the configuration information of the trigger signal, but the correspondence between the configuration information of the trigger signal and the first information is established in advance.

 It should be noted that the method for carrying the first information in the trigger signal may also adopt other methods, which are not limited in the present invention.

 The acquiring unit 7 04 is configured to acquire the first information from the trigger signal. Specifically, when the acquiring unit 704 obtains the trigger signal, the method for acquiring the first information according to the trigger signal is different, and the method for obtaining the first information is also different.

 The acquiring unit 7 04 is specifically configured to directly parse the trigger signal when the first information is directly carried by the load of the trigger signal, that is, when the first information is used as the load data of the trigger signal, and obtain the first from the load bearing of the trigger signal. a message.

 Or the acquiring unit 704 is configured to: when the first information is carried by the configuration information of the trigger signal, obtain the first information according to the configuration information of the trigger signal and the correspondence between the configuration information of the first information and the trigger signal. .

 The processing unit 705 is configured to adjust a state according to the first information or increase the first transmit power.

 Specifically, the processing unit 705 is configured to switch the transmission point from a dormant state to an active state according to the first information when the transmission point is in a dormant state. And/or, when the transmission point is in an active state, the first transmission power is increased according to the first information.

 The first transmit power is power used when the transmission point sends a common signal. The common signal includes at least one of a cell-specific reference signal, a physical broadcast channel, and a broadcast channel carried in a common search space.

 It should be noted that, in the embodiment of the present invention, the processing unit 705, according to the first information adjustment state or the first transmission power is referred to as the processing unit 705, after acquiring the first information, according to the A message determines whether to provide a service for the UE. If it is determined that the UE can be served, the processing unit 705 adjusts the state or increases the first transmit power.

That is, the processing unit 705 is specifically used in the obtaining unit 7 04 After the first information is obtained, according to the first information, it is determined whether to provide a service for the UE that sends the trigger signal, that is, whether the UE that is allowed to send the trigger signal is allowed to access the transmission point according to the first information.

 Specifically, the processing unit is configured to: when determining that the UE that can send the trigger signal is served, when the transmission point is in the sleep state, the transmission point may be switched from the sleep state to the active state. The processing unit 705 is further configured to: after the transmission point is switched from the dormant state to the active state, the first transmit power may be adjusted to send a common signal to the UE. Optionally, after the transmission point is switched from the dormant state to the active state, the transmission point may increase the first transmit power according to the first information to send a common signal to the UE.

 Alternatively, the processing unit 705 is specifically configured to: when the transmission point is in an active state, the processing unit 705 reduces the first transmission power before receiving the trigger signal, so that the sending unit 702 cannot pass the first sending power. The public signal is sent to the UE. In this case, the processing unit 705 is specifically configured to directly increase the first transmit power, so that the sending unit 702 can send the common signal to the UE by using the first transmit power.

 Further, the processing unit 705 is different according to the content of the first information acquired by the obtaining unit 704, and the specific method for adjusting the state and/or the first sending power is different, as follows: The acquiring unit 7 04 is specifically used in the The first information includes: in the case of the received power information of the discovery signal, determining, according to the received power information of the discovery signal, and the transmission power information of the discovery signal, between the transmission point and the UE Path loss.

 The processing unit is configured to switch the transmission point from the sleep state to the active state according to the path loss between the transmission point and the UE determined by the obtaining unit 704. And/or, the processing unit is configured to increase the first transmit power according to the path loss between the transmission point and the UE determined by the acquiring unit 704.

Or the acquiring unit 704 is specifically configured to: when the first information includes: sending power information of the trigger signal, according to sending power information of the trigger signal, and acquiring when the trigger signal is received The received power information of the trigger signal determines a path loss between the transmission point and the UE. The processing unit 507 is specifically configured to switch the transmission point from a sleep state to an active state according to a path loss between the transmission point and the UE determined by the acquiring unit 704; and/or, The processing unit 705 is further configured to increase the first transmit power according to a path loss between the transmission point and the UE determined by the acquiring unit 704.

 Or the acquiring unit 704 is specifically configured to, according to the power offset information, and the sending power information of the discovery signal, where the first information includes: the power offset information, Determining transmit power information of the trigger signal.

 The obtaining unit 704 is further configured to determine, according to the sending power information of the trigger signal, and the received power information of the trigger signal acquired when the trigger signal is received, between the transmission point and the UE. Path loss.

 The processing unit is configured to switch the transmission point from the sleep state to the active state according to the path loss between the transmission point and the UE determined by the obtaining unit 704. And/or, the processing unit 705 is further configured to increase the first transmit power according to a path loss between the transmission point and the UE determined by the acquiring unit 704.

 Or the acquiring unit 704 is specifically configured to: when the first information includes: first timing offset information, according to the sending moment of the discovery signal, the first timing offset information, and receive The receiving moment of the trigger signal determines a transmission distance between the transmission point and the UE.

 The processing unit is configured to switch the transmission point from the sleep state to the active state according to the transmission distance between the transmission point and the UE determined by the obtaining unit 704. And/or, the processing unit 705 is further configured to increase the first transmission power according to the transmission distance between the transmission point and the UE determined by the acquiring unit 704.

 Further, the determining unit 710 is further configured to determine a correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal.

It should be noted that the correspondence between the configuration information of the discovery signal and the configuration signal of the trigger signal is preset. At this time, the determining unit 701 is specifically configured to determine configuration information of the trigger signal according to the configuration information of the discovery signal and the correspondence.

 Further, the sending unit 702 is further configured to send a response message of the trigger signal to the UE.

 The embodiment of the present invention provides a transmission point, and after receiving the discovery signal, when receiving the trigger signal sent by the UE, the corresponding adjustment process may be performed according to the first information carried in the trigger signal. In this way, when the transmission point of the common signal of the transmission point is in the sleep state or the transmission point is decreased, the UE may send a trigger signal to the transmission point, and the UE triggers the transmission point to switch from the sleep state to the active state, or increases the transmission of the common signal. The power does not require the participation of the macro base station, so that the triggering transmission point provides services for the UE without the assistance of the macro base station, and the user experience is improved.

 As shown in FIG. 9, it is a schematic diagram of a structure of a user equipment UE according to an embodiment of the present invention. Referring to FIG. 9, the UE includes: a receiver 801, a transmitter 802, a memory 803, and a processor 804 connected to the receiver 801, the transmitter 802, and the memory 803, respectively.

 A set of program codes is stored in the memory 803, and the processor 804 is used to call the program code stored in the memory 803. Receiver 801 and processor 804 are used to perform the following operations:

 The processor 804 is configured to detect a discovery signal sent by the transmission point.

 The discovery signal is sent by the transmission point, and is used by the UE to discover a signal of the transmission point. The transmission point can be a base station or a first UE.

 It should be noted that the first UE is a UE other than the UE. At this time, when the transmission point is a base station, the discovery signal is sent by the base station, and the UE is used to discover the signal of the base station. Or, when the transmission point is the first UE, the discovery signal is sent by the first UE, and the UE is used to discover the signal of the first UE, and the communication evolves into direct communication or discovery between the UEs. In the present invention, the above two cases are not limited. In the following description, the discovery signal is sent by the base station as an example for description. The implementation manner of sending the discovery signal to the first UE is similar, and details are not described herein.

Specifically, when the UE enters the coverage of a certain cell, the transmission point may go to this The UE broadcasts the discovery signal, and the processor 804 of the UE can detect the discovery signal. At this time, the discovery signal may be sent when the transmission point is in a dormant state, and is used for the UE to discover the cell under the jurisdiction of the transmission point when the transmission point is in the dormant state, and perform measurement on the cell, such as reference signal receiving power or reference. Measurement of signal reception quality, etc. Of course, it can also be sent in the active state, and the action is the same as in the sleep state, and is not limited.

 The base station defined herein is in a dormant state, meaning that the transmission point is in a closed power-saving state. In this state, the transmission point only sends the discovery signal; and when the base station is in an active state, the transmission point is in a normal service state, in addition to being able to continue transmitting and discovering. In addition to the signal, it is also necessary to transmit a synchronization signal, a broadcast channel, a common reference signal, a control channel, and a data channel for the UE to normally access.

 It should be noted that, before detecting the discovery signal, the UE needs to acquire the configuration information of the discovery signal, so that the discovery signal can be detected according to the configuration information.

 It should be noted that the configuration information of the discovery signal is configuration information when the discovery signal is received or transmitted. For the UE, the configuration information of the UE acquiring the discovery signal refers to that the UE acquires configuration information when receiving the discovery signal.

 At this time, the processor 804 may detect the discovery signal according to the acquired configuration information of the discovery signal.

 It should be noted that the configuration information of the discovery signal is configuration information when the discovery signal is received or transmitted. For the UE, the configuration information of the UE acquiring the discovery signal refers to that the UE acquires configuration information when receiving the discovery signal.

 Further, the discovery signal includes: a discovery reference signal or a downlink data packet signal.

In the case that the discovery signal includes: the discovery reference signal, the configuration information includes a candidate sequence of the discovery signal and/or a time-frequency resource. Wherein, the candidate sequence may be Za do ff — Chu /f>歹'], M / >歹] Go 1 d /f>歹'], more than ¹ ■! ^ / l Day step resource can indicate that the resource is sent The base station of the discovery signal governs the cell identity of the cell, such that the processor 80 can distinguish different cells by detecting the discovery signal. When the discovery signal is a downlink data packet signal, the configuration information may include information such as a modulation and coding mode, a payload size, and the like. The configuration information can be pre-configured or configured through signaling. UE.

 Taking the discovery reference signal as an example, the processor 804 detects the discovery signal, which can be understood as the processor 804 detects all candidate sequences, and matches the actual sequence used by the base station to actually send the discovery signal, and the actual sequence is a candidate sequence. And determining, by the actual sequence, the cell identity of the current cell by the base station, that is, discovering the current cell.

 In the case that the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 Further, the discovery signal carries state information of the transmission point.

 The status information indicates whether the transmission point can be triggered by the UE by sending the trigger signal.

 The processor 804 is further configured to acquire configuration information of the trigger signal according to the discovery signal.

 The trigger signal is sent by the UE, and is used to trigger the signal that the transmission point provides a service for the UE.

 The configuration information of the trigger signal is configuration information when the trigger signal is received or transmitted. For the UE in the embodiment of the present invention, the configuration information of the trigger signal is configuration information when the trigger signal is sent. For example, the configuration information includes: a sequence and/or time-frequency resource information used when transmitting the trigger information, and a transmission power information when the trigger information is sent. Alternatively, the configuration information includes: a sequence and/or time-frequency resource information used when transmitting the trigger information.

 Specifically, the processor 84 of the UE may determine actual configuration information of the discovery signal, such as an actual sequence and/or an actual time-frequency resource, before the discovery signal is detected, and the processor 84 of the UE may be configured according to the discovery signal. The actual configuration information, get the configuration information of the trigger signal.

That is, the processor 804 is further configured to acquire configuration information of the discovery signal. At this time, the processor 804 is specifically configured to detect the discovery signal according to the acquired configuration information of the discovery signal. Specifically, the processor 804 is specifically configured to obtain configuration information of the discovery signal by receiving broadcast information of the first transmission point.

 The first transmission point is an adjacent transmission point of the transmission point.

 Alternatively, the processor 804 is specifically configured to locally acquire configuration information of the pre-set discovery signal.

 The transmitter 802 is configured to send the trigger signal to the transmission point according to the configuration information of the trigger signal acquired by the processor 804.

 The trigger signal carries the first information. The first information includes: at least one of received power information of the discovery signal, transmission power information of the trigger signal, power offset information, and first timing offset information.

 The power offset refers to an offset value between a transmission power of the trigger signal and a transmission power of the discovery signal. The first timing offset information refers to a time interval between the UE receiving the discovery signal and transmitting the trigger signal.

 Specifically, the transmitter 802 is specifically configured to: after the processor 84 learns the resource information used when the trigger signal is sent, add the first information to the trigger signal, so that the trigger signal is used according to the configuration information. Sending to the transmission point, so that after receiving the trigger signal, the transmission point may determine that the transmission point is switched from the sleep state to the active state according to the first information in the trigger signal, or when the transmission point is in an active state, according to the The first information increases the first transmission power.

 Further, the method for carrying the first information by the trigger signal is as follows.

 Specifically, the transmitter 802 is specifically configured to directly add the first information to the load of the trigger signal, and directly load the first information by the load of the trigger signal, that is, load data that uses the first information as a trigger signal, The first information is added to the trigger signal.

Alternatively, the transmitter 802 is specifically configured to carry the first information by using configuration information of the trigger signal. At this time, instead of directly adding the content of the first information to the configuration information of the trigger signal, the correspondence between the first information and the configuration information of the trigger signal is established in advance. At this time, after receiving the trigger signal, the configuration information of the trigger signal may be acquired, so that the first information may be acquired according to the configuration information of the trigger signal and the correspondence between the first information and the configuration information of the trigger signal. That is, by triggering The configuration information of the signal carries the first information.

 It should be noted that, by using the trigger signal to carry the first information, other methods may also be used, which are not limited by the present invention.

 Further, the discovery signal carries state information of the transmission point.

 The status information indicates whether the transmission point can be triggered by the UE by sending the trigger signal.

 At this time, the sending, by the transmitter 802, the triggering signal to the transmission point according to the configuration information of the trigger signal, specifically: indicating, in the status information, that the transmission point can be sent by the UE by using When triggered by the manner of the trigger signal, the UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal.

 Further, the content of the first information carried in the trigger signal sent by the transmitter 802 is different, and the content that the processor 804 needs to acquire in the first information is different.

 The processor 804 is further configured to: when the first information includes: the received power information of the discovery signal, obtain the received power information of the discovery signal according to the discovery signal.

 The processor 804 is further configured to: when the first information includes: the first timing offset information, determine the time according to a time when the discovery signal is received and a time when the trigger signal is sent. First timing offset information.

 Further, the processor 804 is further configured to: according to the power offset information, the transmit power information of the discovery signal, and the transmit power of the trigger signal. Information, the power offset information is determined. The discovery signal carries the transmission power information of the discovery signal.

 Further, the processor 804 is further configured to acquire transmit power information of the discovery signal.

 The processor 804 is specifically configured to determine a path loss according to the obtained transmit power information of the discovery signal and the received power information of the discovery signal.

The processor 800 is further configured to determine, according to the path loss, transmit power information of a sending trigger signal. The configuration information of the trigger signal further includes: sending power information of the trigger signal. Or the processor 804 is further configured to acquire, according to the discovery signal, transmit power information of the discovery signal.

 The processor 804 is specifically configured to determine a path loss according to the obtained transmit power information of the discovery signal and the received power information of the discovery signal.

 The processor 8004 is further configured to determine, according to the path loss, transmit power information of a sending trigger signal.

 In this case, the transmitter 202 is specifically configured to send the trigger signal to the transmission point according to the configuration information of the trigger signal and the transmission power information of the trigger signal acquired by the processor 804.

 The processor 804 is further configured to determine a correspondence between configuration information of the discovery signal and configuration information of the trigger signal.

 The processor 804 is configured to acquire configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship.

 Further, the trigger signal includes: a trigger reference signal or an uplink data packet signal.

 Further, in the case that the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: a candidate sequence and/or a time-frequency resource.

 Specifically, the processor 804 is configured to determine configuration information of the trigger signal according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal.

 At this time, when the configuration information of the trigger signal includes the candidate sequence, the processor 804 is specifically configured to: from the configuration information of the discovery signal and the trigger signal according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal. The candidate sequence has corresponding information to determine the candidate sequence to be used when actually transmitting the trigger signal.

 Further, the processor 804 is specifically configured to include a candidate sequence in the configuration information of the discovery signal, and when the candidate sequence of the discovery signal has a correspondence relationship with the candidate sequence of the trigger signal, according to the candidate sequence of the discovery signal, and the corresponding Relationship, determining the candidate sequence of the trigger signal.

The correspondence between the candidate sequence of the discovery signal and the candidate sequence of the trigger signal may be a corresponding correspondence relationship, or may be a one-to-many correspondence relationship, and may also be It is a many-to-one correspondence. In addition, the sequence of the found signal and the sequence of the trigger signal may be of the same type, for example, both Zadof f_Chu sequence 歹 'J or both M 歹 'J, or different types of sequences, such as the sequence of the found signal is M sequence or The Gold sequence, and the sequence of the trigger signal is the Zadoff-Chu sequence 歹'J.

 It should be noted that the candidate sequence of the discovery signal has a corresponding relationship with the candidate sequence of the trigger signal, and may also be other correspondences, such as a many-to-many correspondence, and the correspondence may be preset or may be notified by signaling. UE, the present invention does not limit this.

 Specifically, the processor 804 is specifically configured to: if the candidate sequence of the discovery signal and the candidate sequence of the trigger signal have a corresponding relationship, the corresponding correspondence relationship, after determining the candidate sequence of the discovery signal, according to the discovery signal A corresponding sequence of the candidate sequence and the candidate sequence of the trigger signal determines a candidate sequence of the trigger signal.

 Alternatively, the processor 804 is specifically configured to: if the candidate sequence of the discovery signal and the candidate sequence of the trigger signal have a one-to-many correspondence, after determining the candidate sequence of the discovery signal, the candidate may be based on the discovery signal A one-to-many correspondence between the sequence and the candidate sequence of the trigger signal determines a candidate sequence of a set of trigger signals. At this time, the processor 804 may select a candidate sequence of the trigger signal from the candidate sequences of the set of trigger signals as a candidate sequence in the configuration information of the trigger signal. Further, the processor 804 is specifically configured to randomly select a candidate sequence of the trigger signal from the candidate sequences of the set of trigger signals as a candidate sequence in the configuration information of the trigger signal. Or, according to other information in the configuration information of the discovery signal (such as the received power information of the currently found signal, etc.), a candidate sequence of the trigger signal is selected as a candidate sequence in the configuration information of the trigger signal.

 It should be noted that, the processor 804 may select a candidate sequence of a trigger signal from a candidate sequence of a set of trigger signals, and the method may be used as a candidate sequence in the configuration information of the trigger signal. Make restrictions.

Alternatively, the processor 804 is specifically configured to: if the candidate sequence of the discovery signal and the candidate sequence of the trigger signal have a many-to-one correspondence, after determining the candidate sequence group of the discovery signal, the discovery signal may be Candidate sequence group and trigger letter The many-to-one correspondence of the candidate sequences of the numbers determines a candidate sequence of a trigger signal corresponding to the candidate sequence group of the discovery signal.

 At this time, the processor 804 may not directly determine the candidate sequence group of the discovery signal, but directly use the candidate sequence of the detected discovery signal to uniquely correspond to the candidate sequence of the trigger signal, because multiple signals are found at this time. The candidate sequences all correspond to the candidate sequence of the trigger signal, and then any one of the plurality of candidate sequences is detected to be a candidate sequence, which can uniquely correspond to the candidate sequence of the trigger signal.

 It should be noted that, when other information is included in the configuration information of the discovery signal, for example, the time-frequency resource, the other information in the configuration information of the discovery signal may correspond to the candidate sequence of the trigger signal, for example, the signal is found. The time-frequency resource of the configuration information has a corresponding relationship with the candidate sequence of the trigger signal. The processor 8 04 is specifically configured to obtain configuration information of the trigger signal according to other information of the configuration information of the discovery signal and the correspondence between the other information in the configuration information of the discovery signal and the candidate sequence of the trigger signal. The present invention does not limit the specific information corresponding to the candidate sequence of the trigger signal in the configuration information of the discovery signal.

 When the configuration information of the trigger signal includes a time-frequency resource, the processor 804 is specifically configured to: according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, from the configuration information of the discovery signal and the trigger signal. The time-frequency resource has corresponding information, and the time-frequency resource of the trigger signal is determined.

 Further, the processor 804 is specifically configured to include a time-frequency resource in the configuration information of the discovery signal, and when the time-frequency resource of the discovery signal has a corresponding relationship with the time-frequency resource of the trigger signal, the time-frequency resource according to the discovery signal And the corresponding relationship, determining the time-frequency resource of the trigger signal.

 The time-frequency resources include: frequency resources and time domain resources.

 At this time, the processor 804 is specifically configured to determine a frequency resource of the trigger signal according to the frequency resource of the discovery signal and the corresponding relationship. The time domain resources of the trigger signal are determined according to the time domain resources of the discovery signal and their corresponding relationships.

Specifically, the correspondence between the frequency resource of the discovery signal and the frequency resource of the trigger signal may be a downlink frequency resource that sends the discovery signal and an uplink frequency of the transmission trigger signal. Rate resource correspondence. For example, the transmission point sends a discovery signal through a certain frequency resource of the downlink carrier, and the UE may use the uplink frequency resource corresponding to the downlink frequency resource as the frequency resource in the configuration information of the trigger signal.

 It should be noted that, when acquiring the frequency resource in the configuration information of the trigger signal, the processor 804 may not acquire the configuration information of the discovery signal. In this case, the UE may define the frequency resource by itself.

 The correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal may be - a corresponding correspondence relationship, or a one-to-many correspondence relationship.

 Specifically, the processor 804 is specifically configured to: if the correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal is the corresponding correspondence, the discovery that the transmission point is sent in the subframe N After the signal, the time domain resource in the configuration information that uses the subframe N+4 as the trigger signal may be determined according to the corresponding correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal.

 It should be noted that the processor 804 may also use other subframes such as the subframe N+M as the time domain resource in the configuration information of the trigger signal, and M is a positive integer greater than 0. The invention is not limited thereto. Other timing relationships can also be utilized to determine the time domain resources of the trigger signal based on the time domain resources of the discovery signal. The invention is not limited thereto.

 Or the processor 804 is specifically configured to: if the correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal is a one-to-many correspondence relationship, after the subframe N receives the discovery signal sent by the transmission point, The time domain resource in the configuration information that uses the subframe N+i as the trigger signal may be determined according to a one-to-many correspondence between the time domain resource of the discovery signal and the time domain resource of the trigger signal.

 Preferably, i is an integer multiple of four.

It should be noted that the processor 804 may randomly determine the value of i, and use the subframe N+i as the time domain resource in the configuration information of the trigger signal. Of course, the value of i can also be determined according to the identification information of the UE, and the subframe N+i is used as the time domain resource in the configuration information of the trigger signal. The multiple time domain resources of the above N+i are generally discontinuous subframes. As long as i is not equal to 1, the above correspondence may also correspond to a series of consecutive subframes as time domain resources, for example, continuous j starting from N+i. Subframes, ie N+i, N+i + 1 , N+i + jl ₀ It should be noted that, the processor 804 may obtain the time domain resource in the configuration information of the trigger signal by using other methods, for example, the time domain resource in the configuration information of the trigger signal is set by the UE itself. No restrictions.

 It should be noted that, when other information is included in the configuration information of the discovery signal, for example, the candidate sequence, the other information in the configuration information of the discovery signal may correspond to the time-frequency resource of the trigger signal, for example, the candidate sequence and the trigger. The time-frequency resources of the signals have a corresponding relationship. The processor 8 04 is specifically configured to acquire configuration information of the trigger signal according to other information of the configuration information of the discovery signal and the correspondence between the other information in the configuration information of the discovery signal and the time-frequency resource of the trigger signal. The present invention does not limit the specific information corresponding to the time-frequency resource of the trigger signal in the configuration information of the discovery signal.

 In the case that the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 In this case, the processor 804 is specifically configured to: when the configuration information of the trigger signal includes the modulation and coding mode, according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, from the configuration information of the discovery signal The modulation and coding mode of the trigger signal has corresponding information, and the modulation and coding mode of the trigger signal is determined.

 Optionally, the processor 804 is specifically configured to include a modulation and coding mode in the configuration information of the discovery signal, where the information corresponding to the modulation and coding of the trigger signal in the configuration information of the discovery signal is a modulation and coding mode, according to the discovery The modulation and coding mode of the signal, and the correspondence between the modulation and coding mode of the discovery signal and the modulation and coding mode of the trigger signal determine the modulation and coding mode of the trigger signal.

 It should be noted that the information corresponding to the modulation and coding mode of the trigger signal in the configuration information of the discovery signal may be other information, such as a candidate sequence of the discovery signal, a time-frequency resource, etc., which is not limited by the present invention.

The processor 804 is specifically configured to: when the configuration information of the trigger signal includes the load size, according to the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal, the configuration information of the discovery signal and the load of the trigger signal The size has corresponding information, Determine the load size of the trigger signal.

 Optionally, the processor 804 is specifically configured to include a payload size in the configuration information of the discovery signal, where the information corresponding to the modulation and coding of the trigger signal in the configuration information of the discovery signal is a payload size, according to the discovery signal. The load size, and the correspondence between the load size of the discovery signal and the load of the trigger signal determine the load of the trigger signal.

 It should be noted that the information corresponding to the load size of the trigger signal in the configuration information of the discovery signal may be other information, such as a candidate sequence of the discovery signal, a time-frequency resource, etc., which is not limited by the present invention.

 It should be noted that the processor 804 obtains the configuration information of the trigger signal according to the configuration information of the discovery signal and the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal. The present invention does not limit the specific content of the configuration information of the discovery signal. The correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal can be set in advance.

 The receiver 8 0 1 is configured to receive a response message of the trigger signal sent by the transmission point.

 An embodiment of the present invention provides a UE, after detecting a discovery signal, acquiring configuration information of a trigger signal according to the discovery signal, and the UE may send a trigger signal to the transmission point according to the configuration information of the trigger signal, so that the transmission point is receiving. After the trigger signal, obtaining the first information, when the transmission point is in the sleep state, the transmission point is switched from the sleep state to the active state according to the first information; and/or, When the transmission point is in an active state, the transmission point increases the first transmission power according to the first information. In this way, when the transmission point of the common signal of the transmission point is in the sleep state or the transmission point is decreased, the UE may send a trigger signal to the transmission point, and the UE triggers the transmission point to switch from the sleep state to the active state, or increases the transmission of the common signal. The power does not require the participation of the macro base station, so that the triggering transmission point provides services for the UE without the assistance of the macro base station, and the user experience is improved.

FIG. 10 is a schematic structural diagram of a transmission point according to an embodiment of the present invention. Referring to FIG. 10, the transmission point includes: a transmitter 9 0 1 and a receiver 9 0 2. A memory 903, and a processor 904 connected to the transmitter 910, the receiver 902, and the memory 903, respectively.

 A set of program codes is stored in the memory 904, and the processor 904 is used to call the program code stored in the memory 904. Transmitter 9 01 and processor 9 04 are used to perform the following operations:

 The processor 9 04 is configured to determine configuration information of the discovery signal.

 The transmitter 9 01 is configured to send the discovery signal according to the configuration information of the discovery signal determined by the processor 904.

 The discovery signal is sent by the transmission point, and is used by the user equipment UE to discover the signal of the transmission point. The transmission point can be a base station or a first UE.

 It should be noted that the configuration information of the discovery signal is configuration information when the discovery signal is received or transmitted. For a transmission point, the transmission point determines that the configuration information of the discovery signal is that the transmission point determines configuration information when transmitting the discovery signal.

 It should be noted that the first UE is a UE other than the UE. At this time, when the transmission point is a base station, the discovery signal is sent by the base station, and is used by the UE to discover the signal of the base station. Or, when the transmission point is the first UE, the discovery signal is sent by the first UE, and is used by the UE to discover the signal of the first UE. At this point the communication evolves into a direct communication or discovery between the UEs. In the present invention, the above two cases are not limited. In the following description, the discovery signal is sent by the base station as an example for description. The implementation manner of transmitting the discovery signal by the first UE is similar and will not be described again.

 Specifically, the configuration information of the discovery signal may be preset in the transmission point, that is, the base station may preset resource information when transmitting the discovery signal, such as time-frequency information, candidate sequence, and the like.

 At this time, the transmitter 910 is further configured to: when the processor 904 determines the configuration information of the discovery signal, when the transmission point is in a sleep state, or the transmission point is in an active state, but the transmission of the common signal is reduced. When transmitting power, the discovery signal is sent by broadcast according to its configuration information in a certain period, so that the UE around the transmission point discovers and accesses the transmission point.

It should be noted that the transmitter 9 01 is also used when the transmission point is in an active state. When the transmission power of the common signal is not reduced, the discovery signal is transmitted by means of broadcast, which is not limited in the present invention.

 Further, the discovery signal carries the transmission power information of the discovery signal. The transmitter 901 is further configured to add the transmit power information of the discovery signal to the discovery signal.

 Specifically, the transmitter 901 adds the transmit power information of the discovery signal to the discovery signal as follows:

 The transmitter 901 is specifically configured to directly add the transmit power information of the discovery signal to the payload of the discovery signal, and directly transmit the transmit power information of the discovery signal by the payload of the discovery signal, that is, the transmit power information of the discovery signal is used as a discovery. The load data of the signal adds the transmission power information of the discovery signal to the discovery signal.

 Or the transmitter 901 is specifically configured to: transmit the transmit power information of the discovery signal to the candidate sequence of the discovery signal, where the transmission point and the UE need to preset the transmission power information of the discovery signal and the candidate sequence of the discovery signal. Correspondence relationship. At this time, the transmitter 901 is specifically configured to: set a candidate sequence of the discovery signal according to the transmit power information of the discovery signal, and send the discovery signal to the UE, so that the UE may preset according to the preset signal after receiving the discovery signal. The correspondence between the transmission power information of the discovery signal and the candidate sequence of the discovery signal, and the candidate sequence in the discovery signal, determine the transmission power of the discovery signal.

 It should be noted that, in the embodiment of the present invention, the transmitter 901 adds a specific method for the transmission power information of the discovery signal, and may be other methods, which are not limited in the present invention.

 It should be noted that the method for the transmitter 901 to send the discovery signal to the UE may be other methods, which are not limited in the present invention.

 Further, the discovery signal includes: a discovery reference signal or a downlink data packet signal.

 It should be noted that the discovery signals are different, and the corresponding configuration information is different.

In the case that the discovery signal includes: the discovery reference signal, the configuration information of the discovery signal includes: a candidate sequence and/or a time-frequency resource. In the case that the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 Further, the discovery signal carries state information of the transmission point.

 The status information indicates whether the transmission point can be triggered by the UE by sending the trigger signal.

 The processor 9 04 is further configured to determine configuration information of the trigger signal.

 Specifically, after determining the configuration information of the discovery signal, the processor 904 can obtain the configuration information of the trigger signal according to the configuration information of the discovery signal.

 The receiver 902 is configured to receive the trigger signal sent by the UE according to the configuration information of the trigger signal determined by the processor 094.

 The trigger signal carries the first information. The first information includes: at least one of received power information of the discovery signal, transmission power information of the trigger signal, power offset information, and first timing offset information.

 The power offset refers to an offset value between a transmission power of the trigger signal and a transmission power of the discovery signal. The first timing offset information refers to a time interval between the UE receiving the discovery signal and transmitting the trigger signal.

 It should be noted that the configuration information of the trigger signal is configuration information when receiving or transmitting the trigger signal. For the transmission point in the embodiment of the present invention, the configuration information of the trigger signal is configuration information when the trigger signal is received. For example, the configuration information includes: sequence and/or time-frequency resource information used when receiving the trigger information, and transmission power information when the trigger information is received. Alternatively, the configuration information includes: a sequence and/or time-frequency resource information used when receiving the trigger information, and the like.

 Further, the trigger signal includes: a trigger reference signal or an uplink data packet signal.

 It should be noted that the corresponding configuration information is different according to the trigger signal.

In the case that the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: a candidate sequence and/or a time-frequency resource. In the case that the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: at least one of a modulation and coding mode, a payload size, and a time-frequency resource.

 The method for receiving the first information carried by the trigger signal by the receiver 902 is as follows.

 Specifically, the first information is directly carried by the load of the trigger signal, that is, the load data that uses the first information as a trigger signal.

 Alternatively, the first information is carried by the configuration information of the trigger signal. In this case, the content of the first information is not directly carried in the configuration information of the trigger signal, but the correspondence between the configuration information of the trigger signal and the first information is established in advance.

 It should be noted that the method for carrying the first information in the trigger signal may also adopt other methods, which are not limited in the present invention.

 The processor 9 04 is further configured to acquire the first information from the trigger signal. Specifically, when the processor 904 obtains the trigger signal, the method for acquiring the first information according to the trigger signal is different, and the method for obtaining the first information is also different.

 The processor 9 04 is specifically configured to directly parse the trigger signal when the first information is directly carried by the load of the trigger signal, that is, when the first information is used as the trigger data, and obtain the first from the load bearing of the trigger signal. a message.

 Or the processor 904 is configured to: when the first information is carried by the configuration information of the trigger signal, according to the configuration information of the trigger signal, and the correspondence between the configuration information of the first information and the trigger signal, the first information is obtained. .

 The processor 904 is further configured to adjust a state according to the first information or increase the first transmit power.

 Specifically, the processor 94 is configured to switch the transmission point from a sleep state to an active state according to the first information when the transmission point is in a sleep state. And/or, when the transmission point is in an active state, the first transmission power is increased according to the first information.

The first transmit power is power used when the transmission point sends a common signal. The common signal includes at least one of a cell-specific reference signal, a physical broadcast channel, and a broadcast channel carried in a common search space. It should be noted that, in the embodiment of the present invention, the processor 904 adjusts the state according to the first information or increases the first sending power, that is, the processor 904, after acquiring the first information, according to the first information. Determining whether to provide a service for the UE. If it is determined that the UE can be served, the processor 904 adjusts the state or increases the first transmit power.

 That is, the processor 904 is specifically configured to determine, according to the first information, whether to provide a service for the UE that sends the trigger signal after acquiring the first information, that is, determining whether to allow the trigger signal to be sent according to the first information. The UE accesses the transmission point.

 Specifically, the processor 904 is specifically configured to: when determining that the UE that can send the trigger signal is served, the transmission point may be switched from the sleep state to the active state when the transmission point is in the sleep state. The processor 904 is further configured to: after the transmission point is switched from the dormant state to the active state, the first transmit power may be adjusted to send a common signal to the UE. Optionally, after the transmission point is switched from the dormant state to the active state, the transmission point may increase the first transmit power according to the first information to send a common signal to the UE.

 Alternatively, the processor 904 is specifically configured to: when the transmission point is in an active state, the processor 904 reduces the first transmit power before receiving the trigger signal, so that the transmitter 901 cannot speak the common signal by using the first transmit power. The processor 904 is specifically configured to directly increase the first transmit power, so that the transmitter 901 can send the common signal to the UE by using the first transmit power.

 Further, the processor 904 is different according to the content of the obtained first information, and the specific method for adjusting the state and/or the first sending power is different, as follows:

 The processor 904 is specifically configured to: when the first information includes: the received power information of the discovery signal, determine according to the received power information of the discovery signal, and the transmit power information of the discovery signal. Path loss between the transmission point and the UE. Consumption.

The processor 904 is specifically configured to switch the transmission point from a sleep state to an active state according to the determined path loss between the transmission point and the UE. And/or, the processor 904 is specifically configured to increase the first transmit power according to the determined path loss between the transmission point and the UE. Or the processor 904 is specifically configured to: when the first information includes: the transmit power information of the trigger signal, according to the transmit power information of the trigger signal, and the received when the trigger signal is received The received power information of the trigger signal determines a path loss between the transmission point and the UE.

 The processor 904 is specifically configured to: switch the transmission point from a sleep state to an active state according to the determined path loss between the transmission point and the UE; and/or, the processor 904, further Specifically, the first transmit power is increased according to the determined path loss between the transmission point and the UE.

 Or the processor 904 is specifically configured to determine, according to the power offset information, and the transmit power information of the discovery signal, in a case where the first information includes: the power offset information Transmit power information of the trigger signal.

 The processor 904 is further configured to determine, according to the transmit power information of the trigger signal, and the received power information of the trigger signal acquired when the trigger signal is received, between the transmission point and the UE. Path loss.

 The processor 904 is specifically configured to switch the transmission point from a sleep state to an active state according to the determined path loss between the transmission point and the UE. And/or, the processor 904 is further configured to increase the first transmit power according to the determined path loss between the transmission point and the UE.

 Or the processor 904 is specifically configured to, according to the first timing information, the first timing offset information, the first timing offset information, and the receiving station, where the first information includes: first timing offset information Determining a transmission time of the trigger signal, determining a transmission distance between the transmission point and the UE.

 The processor 904 is specifically configured to switch the transmission point from a sleep state to an active state according to the determined transmission distance between the transmission point and the UE. And/or, the processor 904 is further configured to increase the first transmit power according to the determined transmission distance between the transmission point and the UE.

 Further, the processor 904 is further configured to determine a correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal.

It should be noted that the configuration information of the discovery signal and the configuration signal of the trigger signal The correspondence between , is preset.

 At this time, the processor 904 is specifically configured to determine configuration information of the trigger signal according to the configuration information of the discovery signal and the correspondence.

 Further, the transmitter 910 is further configured to send a response message of the trigger signal to the UE.

 The embodiment of the present invention provides a transmission point, and after receiving the discovery signal, when receiving the trigger signal sent by the UE, the corresponding adjustment process may be performed according to the first information carried in the trigger signal. In this way, when the transmission point of the common signal of the transmission point is in the sleep state or the transmission point is decreased, the UE may send a trigger signal to the transmission point, and the UE triggers the transmission point to switch from the sleep state to the active state, or increases the transmission of the common signal. The power does not require the participation of the macro base station, so that the triggering transmission point provides services for the UE without the assistance of the macro base station, and the user experience is improved.

 The embodiment of the present invention provides a system for transmitting and receiving a trigger signal. As shown in FIG. 1 , the method includes: a user equipment UE 1 0 0 1 , and a transmission point 1 0 02. among them,

 The UE 1 0 0 1 is the UE described in the foregoing embodiment.

 The transmission point 102 is the transmission point described in the above embodiment.

 The embodiment of the present invention provides a method, a device, and a system for transmitting and receiving a trigger signal. After detecting a discovery signal, the user equipment UE acquires configuration information of the trigger signal according to the discovery signal, and the UE may use the configuration information of the trigger signal according to the configuration information of the trigger signal. Sending a trigger signal to the transmission point, so that the transmission point acquires the first information after receiving the trigger signal, and when the transmission point is in the sleep state, the transmission point is, according to the first information, the transmission point is dormant Switching to an active state; and/or, when the transmission point is in an active state, the transmission point increases the first transmission power according to the first information. In this way, when the transmission point of the common signal of the transmission point is in the dormant state or the transmission point is decreased, the UE may send a trigger signal to the transmission point, and the UE triggers the transmission point to switch from the dormant state to the active state, or increase the transmission of the common signal. The power does not require the participation of the macro base station, so that the triggering transmission point provides services for the UE without the assistance of the macro base station, and the user experience is improved.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device described above The embodiment is only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated into another system. Or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

 The units described as separate components may or may not be physically separated, and the components displayed as the units may or may not be physical units, and may be located in one place or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiment of the present embodiment.

 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

 The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional unit described above is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (Re a d-Only Memo ry, abbreviated as), a random access memory (Ra ndom A ccess Memo ry, RAM for short), a magnetic disk or an optical disk. And other media that can store program code.

 It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

claims

1. A method of sending a trigger signal, which is characterized by including:

User equipment UE detects the discovery signal sent by the transmission point;

The UE obtains the configuration information of the trigger signal according to the discovery signal;

The UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal; wherein the trigger signal carries first information; the first information includes: the received power of the discovery signal information, the transmission power information of the trigger signal, the power offset information and the first timing offset information; the power offset refers to the transmission power of the trigger signal and the discovery signal Offset value between transmit powers; The first timing offset information refers to the time interval between the UE receiving the discovery signal and sending the trigger signal.

2. The method according to claim 1, characterized in that, in the case where the first information includes: the received power information of the discovery signal, the UE sends the information to the trigger signal according to the configuration information of the trigger signal. Before the transmission point sends the trigger signal, the method further includes: the UE obtains the received power information of the discovery signal according to the discovery signal.

3. The method according to claim 1 or 2, characterized in that, in the case where the first information includes: the first timing offset information, in the UE according to the configuration information of the trigger signal, Before sending the trigger signal to the transmission point, the method further includes: the UE determining the first timing offset information based on the time of receiving the discovery signal and the time of sending the trigger signal.

4. The method according to any one of claims 1 to 3, characterized in that,

In the case where the first information includes: the power offset information, before the UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal, it also includes:

The UE determines the power offset information based on the transmission power information of the discovery signal and the transmission power information of the trigger signal; wherein the discovery signal carries the transmission power information of the discovery signal.

5. The method according to any one of claims 1 to 4, characterized in that, before the UE obtains the configuration information of the trigger signal according to the discovery signal, it further includes: The UE obtains the configuration information of the discovery signal;

The UE determines the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal;

The UE obtaining the configuration information of the trigger signal according to the discovery signal includes: the UE obtaining the configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship.

6. The method according to any one of claims 1 to 5, characterized in that the trigger signal includes: a trigger reference signal or an uplink data packet signal.

7. The method according to claim 6, characterized in that,

In the case where the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: candidate sequences and/or time-frequency resources;

In the case where the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: at least one of: modulation and coding method, payload size and time-frequency resource.

8. The method according to claim 7, characterized in that, before the UE obtains the configuration information of the trigger signal according to the discovery signal, it further includes:

The UE obtains the transmission power information of the discovery signal according to the discovery signal; the UE determines path loss according to the transmission power information of the discovery signal and the reception power information of the discovery signal;

The UE obtains the configuration information of the trigger signal according to the discovery signal: the UE determines the transmission power information for sending the trigger signal according to the path loss; wherein the configuration information of the trigger signal also includes: the trigger signal transmit power information.

9. The method according to any one of claims 1 to 7, characterized in that, before the UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal, it further includes:

The UE obtains the transmission power information of the discovery signal according to the discovery signal; the UE determines path loss according to the transmission power information of the discovery signal and the reception power information of the discovery signal; The UE determines the transmission power information for sending a trigger signal according to the path loss; and the UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal including:

The UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal and the transmission power information of the trigger signal.

10. The method according to any one of claims 1 to 9, characterized in that the discovery signal also carries status information of the transmission point, and the status information indicates whether the transmission point can be used by the transmission point. The UE triggers by sending the trigger signal;

The UE sending the trigger signal to the transmission point according to the configuration information of the trigger signal includes:

When the status information indicates that the transmission point can be triggered by the UE by sending the trigger signal, the UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal.

11. The method according to any one of claims 1 to 10, characterized in that the discovery signal includes: a discovery reference signal or a downlink data packet signal.

12. The method according to claim 11, characterized in that,

In the case where the discovery signal includes: the discovery reference signal, the configuration information of the discovery signal includes: candidate sequences and/or time-frequency resources;

In the case where the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: at least one of: modulation and coding method, payload size and time-frequency resource.

13. The method according to any one of claims 1 to 12, characterized in that, after the UE sends the trigger signal to the transmission point according to the configuration information of the trigger signal, it further includes:

The UE receives the response message of the trigger signal sent by the transmission point.

1 4. A trigger signal receiving method, characterized by including:

The transmission point determines the configuration information of the discovery signal and sends the discovery signal to the user equipment UE according to the configuration information of the discovery signal; The transmission point determines the configuration information of the trigger signal, and receives the trigger signal sent by the UE according to the configuration information of the trigger signal; wherein, the trigger signal carries first information; the first information includes: At least one of the received power information of the discovery signal, the transmit power information of the trigger signal, the power offset information and the first timing offset information; the power offset refers to the transmit power of the trigger signal an offset value from the transmission power of the discovery signal; the first timing offset information refers to the time interval between the UE receiving the discovery signal and sending the trigger signal;

The transmission point obtains the first information from the trigger signal;

When the transmission point is in the sleep state, the transmission point switches from the sleep state to the active state according to the first information; and/or,

When the transmission point is in an active state, the transmission point increases the first transmission power according to the first signal, I; wherein, the first transmission power is used when the transmission point transmits a common signal. power.

15. The method according to claim 14, characterized in that,

In the case where the first information includes: the received power information, I, of the discovery signal, the transmission point switches from the dormant state to the active state according to the first information, including:

The transmission point determines the path loss between the transmission point and the UE based on the received power information of the discovery signal and the transmission power information of the discovery signal;

The transmission point switches from a dormant state to an active state according to the path loss between the transmission point and the UE;

And/or, the transmission point increasing the first transmission power according to the first information includes:

The transmission point determines the path loss between the transmission point and the UE based on the received power information of the discovery signal and the transmission power information of the discovery signal;

The transmission point increases the first transmission power according to the path loss between the transmission point and the UE.

16. The method according to claim 14, characterized in that,

In the case where the first information includes: transmission power information of the trigger signal, According to the first information, the transmission point switches from the dormant state to the active state including:

The transmission point determines the transmission point and the transmission point based on the transmission power information of the trigger signal and the reception power information of the trigger signal obtained when receiving the trigger signal.

Path loss between UEs;

The transmission point switches from a dormant state to an active state according to the path loss between the transmission point and the UE;

And/or, the transmission point increasing the first transmission power according to the first information includes:

The transmission point determines the path loss between the transmission point and the UE based on the transmission power information of the trigger signal and the reception power information of the trigger signal obtained when receiving the trigger signal;

The transmission point increases the first transmission power according to the path loss between the transmission point and the UE.

17. The method according to claim 14, characterized in that,

In the case where the first information includes: the power offset information, the transmission point switches from the dormant state to the active state according to the first information: the transmission point switches according to the Power offset information, and the transmission power information of the discovery signal, determine the transmission power information of the trigger signal;

The transmission point determines the path loss between the transmission point and the UE based on the transmission power information of the trigger signal and the reception power information of the trigger signal obtained when receiving the trigger signal;

The transmission point switches from a dormant state to an active state according to the path loss between the transmission point and the UE;

And/or, the transmission point increasing the first transmission power according to the first information includes:

The transmission point determines the transmission power information of the trigger signal based on the power offset information and the transmission power information of the discovery signal;

The transmission point receives the trigger signal according to the transmission power information of the trigger signal. The received power information of the trigger signal obtained when the signal is used to determine the transmission point and the

Path loss between UEs;

The transmission point increases the first transmission power according to the path loss between the transmission point and the UE.

18. The method according to claim 14, characterized in that,

In the case where the first information includes: first timing offset information, the transmission point switches from the dormant state to the active state according to the first information including:

The transmission point determines the transmission distance between the transmission point and the UE based on the transmission time of the discovery signal, the first timing offset information, and the reception time of the trigger signal;

The transmission point switches from a dormant state to an active state according to the transmission distance between the transmission point and the UE;

And/or, the transmission point increasing the first transmission power according to the first information includes:

The transmission point determines the transmission distance between the transmission point and the UE based on the transmission time of the discovery signal, the first timing offset information, and the reception time of the trigger signal;

The transmission point increases the first transmission power according to the transmission distance between the transmission point and the UE.

19. The method according to any one of claims 14 to 18, characterized in that the discovery signal carries the transmission power information of the discovery signal.

20. The method according to any one of claims 14 to 19, characterized in that the discovery signal carries status information of the transmission point, and the status information indicates whether the transmission point can be passed by the UE. Trigger by sending the trigger signal.

21. The method according to any one of claims 14 to 20, characterized in that, before the transmission point determines the configuration information of the trigger signal, it further includes:

The transmission point determines that there is a corresponding relationship between the configuration information of the discovery signal and the configuration information of the trigger signal;

The transmission point determines the configuration information of the trigger signal, including: The transmission point determines the configuration information of the trigger signal based on the configuration information of the discovery signal and the corresponding relationship.

22. The method according to any one of claims 14-21, characterized in that the trigger signal includes: a trigger reference signal or an uplink data packet signal.

23. The method according to claim 22, characterized in that,

In the case where the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: candidate sequences and/or time-frequency resources;

In the case where the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: at least one of: modulation and coding method, payload size and time-frequency resource.

24. The method according to any one of claims 14-23, characterized in that the discovery signal includes: a discovery reference signal or a downlink data packet signal.

25. The method according to claim 24, characterized in that,

In the case where the discovery signal includes: the discovery reference signal, the configuration information of the discovery signal includes: candidate sequences and/or time-frequency resources;

In the case where the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: at least one of: modulation and coding method, payload size and time-frequency resource.

26. The method according to any one of claims 14 to 25, characterized in that, after the transmission point receives the trigger signal sent by the UE according to the configuration information of the trigger signal, it further includes:

The transmission point sends a response message of the trigger signal to the UE.

27. A user equipment UE, characterized by: including:

The detection unit is used to detect the discovery signal sent by the transmission point;

An acquisition unit configured to acquire the configuration information of the trigger signal according to the discovery signal detected by the detection unit;

A sending unit, configured to send the trigger signal to the transmission point according to the configuration information of the trigger signal obtained by the acquisition unit; wherein the trigger signal carries first information; the first information includes : the received power information of the discovery signal, the At least one of the transmission power information of the trigger signal, the power offset information and the first timing offset information; the power offset refers to the difference between the transmission power of the trigger signal and the transmission power of the discovery signal. Offset value; The first timing offset information refers to the time interval between the UE receiving the discovery signal and sending the trigger signal.

28. The UE according to claim 27, characterized in that,

The acquisition unit is further configured to acquire the received power information of the discovery signal according to the discovery signal when the first information includes: the received power information of the discovery signal.

29. The UE according to claim 27 or 28, characterized in that,

The acquisition unit is further configured to determine the first timing offset based on the time of receiving the discovery signal and the time of sending the trigger signal, when the first information includes: the first timing offset information. Timing offset information.

30. The UE according to any one of claims 27 to 29, wherein the obtaining unit is further configured to: when the first information includes: the power offset information, according to the The transmission power information of the discovery signal and the transmission power information of the trigger signal determine the power offset information; wherein the discovery signal carries the transmission power information of the discovery signal.

31. The UE according to any one of claims 27-30, further comprising:

The acquisition unit is also used to acquire the configuration information of the discovery signal;

Determining unit, used to determine the correspondence between the configuration information of the discovery signal and the configuration information of the trigger signal;

The obtaining unit is specifically configured to obtain the configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship determined by the determining unit.

32. The UE according to any one of claims 27 to 31, characterized in that the trigger signal includes: a trigger reference signal or an uplink data packet signal.

3 3. The UE according to claim 32, characterized in that,

In the case where the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: candidate sequences and/or time-frequency resources; In the case where the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: at least one of: modulation and coding method, payload size and time-frequency resource.

34. The UE according to claim 33, characterized in that,

The acquisition unit is further configured to acquire the transmission power information of the discovery signal; the acquisition unit is specifically configured to determine the path loss based on the acquired transmission power information of the discovery signal and the received power information of the discovery signal. ;

The acquisition unit is further configured to determine the transmission power information of the transmission trigger signal according to the path loss; wherein the configuration information of the trigger signal further includes: the transmission power information of the trigger signal.

35. The UE according to any one of claims 27 to 34, wherein the obtaining unit is further configured to obtain the transmission power information of the discovery signal according to the discovery signal;

The acquisition unit is specifically configured to determine the path loss based on the acquired transmission power information of the discovery signal and the received power information of the discovery signal;

The acquisition unit is also configured to determine the transmission power information of the transmission trigger signal according to the path loss;

The sending unit is specifically configured to send the trigger signal to the transmission point according to the configuration information of the trigger signal and the transmission power information of the trigger signal obtained by the acquisition unit.

36. The UE according to any one of claims 27 to 35, characterized in that the discovery signal also carries status information of the transmission point, and the status information indicates whether the transmission point can be reached by the sending unit. Trigger by sending the trigger signal;

The sending unit is specifically configured to send the transmission point to the transmission point according to the configuration information of the trigger signal when the status information indicates that the transmission point can be triggered by the sending unit by sending the trigger signal. Send the trigger signal.

37. The UE according to any one of claims 27 to 36, wherein the discovery signal includes: a discovery reference signal or a downlink data packet signal.

38. The UE according to claim 37, characterized in that,

In the case where the discovery signal includes: the discovery reference signal, the configuration information of the discovery signal includes: candidate sequences and/or time-frequency resources;

In the case where the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: at least one of: modulation and coding method, payload size and time-frequency resource.

39. The UE according to any one of claims 27-38, further comprising:

A receiving unit, configured to receive a response message of the trigger signal sent by the transmission point.

40. A transmission point, characterized by: including:

Determining unit, used to determine the configuration information of the discovered signal;

A sending unit, configured to send the discovery signal to the user equipment UE according to the configuration information of the discovery signal determined by the determining unit;

The determining unit is also used to determine the configuration information of the trigger signal;

A receiving unit, configured to receive the trigger signal sent by the UE according to the configuration information of the trigger signal determined by the determining unit; wherein, the trigger signal carries first information; the first information includes: At least one of the received power information of the discovery signal, the transmit power information of the trigger signal, the power offset information and the first timing offset information; the power offset refers to the transmit power of the trigger signal and The offset value between the transmission power of the discovery signal; The first timing offset information refers to the time interval between the UE receiving the discovery signal and sending the trigger signal;

An acquisition unit, configured to acquire the first information from the trigger signal;

The processing unit is configured to switch the transmission point from the dormant state to the active state according to the first information obtained by the acquisition unit when the transmission point is in the dormant state; and/or, the processing unit is configured to use When the transmission point is in an active state, the first transmission power is increased according to the first information obtained by the acquisition unit; wherein, the first transmission power is used when the transmission point transmits a common signal. power.

4 1. The transmission point according to claim 40, characterized in that, The acquisition unit is specifically configured to determine, based on the received power information of the discovery signal and the transmit power information of the discovery signal, when the first information includes: the received power information of the discovery signal. The path loss between the transmission point and the UE;

The processing unit is specifically configured to switch the transmission point from the dormant state to the active state according to the path loss between the transmission point and the UE determined by the acquisition unit; and/or,

The processing unit is specifically configured to increase the first transmit power according to the path loss between the transmission point and the UE determined by the acquisition unit.

42. The transmission point according to claim 40, characterized in that,

The acquisition unit is specifically configured to: when the first information includes: the transmission power information of the trigger signal, according to the transmission power information of the trigger signal, and the trigger obtained when receiving the trigger signal The received power information of the signal determines the path loss between the transmission point and the UE;

The processing unit is specifically configured to switch the transmission point from the dormant state to the active state according to the path loss between the transmission point and the UE determined by the acquisition unit; and/or,

The processing unit is further specifically configured to increase the first transmit power according to the path loss between the transmission point and the UE determined by the acquisition unit.

43. The transmission point according to claim 40, characterized in that,

The acquisition unit is specifically configured to determine the trigger according to the power offset information and the transmission power information of the discovery signal when the first information includes: the power offset information. The transmission power information of the signal;

The acquisition unit is further specifically configured to determine a path between the transmission point and the UE based on the transmission power information of the trigger signal and the reception power information of the trigger signal obtained when receiving the trigger signal. loss;

The processing unit is specifically configured to switch the transmission point from a dormant state to an active state according to the path loss between the transmission point and the UE determined by the acquisition unit; and/or, The processing unit is further specifically configured to increase the first transmit power according to the path loss between the transmission point and the UE determined by the acquisition unit.

44. The transmission point according to claim 40, characterized in that,

The acquisition unit is specifically configured to receive the trigger signal based on the sending time of the discovery signal, the first timing offset information, and receiving the trigger signal when the first information includes first timing offset information. At the receiving time, determine the transmission distance between the transmission point and the UE;

The processing unit is specifically configured to switch the transmission point from a dormant state to an active state according to the transmission distance between the transmission point and the UE determined by the acquisition unit; and/or,

The processing unit is further specifically configured to increase the first transmit power according to the transmission distance between the transmission point and the UE determined by the acquisition unit.

45. The transmission point according to any one of claims 40 to 44, characterized in that the discovery signal carries transmission power information of the discovery signal.

46. The transmission point according to any one of claims 40 to 45, characterized in that the discovery signal carries status information of the transmission point, and the status information indicates whether the transmission point can be used by the transmission point. The UE triggers by sending the trigger signal.

47. The transmission point according to any one of claims 40 to 46, characterized in that the determining unit is further configured to determine that there is a corresponding relationship between the configuration information of the discovery signal and the configuration information of the trigger signal. ;

The determining unit is specifically configured to determine the configuration information of the trigger signal according to the configuration information of the discovery signal and the corresponding relationship.

48. The transmission point according to any one of claims 40 to 47, characterized in that the trigger signal includes: a trigger reference signal or an uplink data packet signal.

49. The transmission point according to claim 48, characterized in that, when the trigger signal includes: the trigger reference signal, the configuration information of the trigger signal includes: candidate sequences and/or time-frequency resources;

In the case where the trigger signal includes: the uplink data packet signal, the configuration information of the trigger signal includes: modulation and coding method, payload size and at least one of time-frequency resources. A sort of.

50. The transmission point according to any one of claims 40 to 49, characterized in that the discovery signal includes: a discovery reference signal or a downlink data packet signal.

51. The transmission point according to claim 50, characterized in that, when the discovery signal includes: the discovery reference signal, the configuration information of the discovery signal includes: candidate sequence and/or time frequency resource;

In the case where the discovery signal includes: the downlink data packet signal, the configuration information of the discovery signal includes: at least one of: modulation and coding method, payload size and time-frequency resource.

52. The transmission point according to any one of claims 40 to 51, characterized in that the sending unit is further configured to send a response message of the trigger signal to the UE.

5 3. A user equipment UE, which is characterized by including:

A processor for detecting the discovery signal sent by the transmission point;

The processor is also configured to obtain the configuration information of the trigger signal according to the discovery signal;

A transmitter, configured to send the trigger signal to the transmission point according to the configuration information of the trigger signal obtained by the processor; wherein the trigger signal carries first information; the first information includes : At least one of the received power information of the discovery signal, the transmit power information of the trigger signal, the power offset information and the first timing offset information; the power offset refers to the trigger signal The offset value between the transmission power and the transmission power of the discovery signal; the first timing offset information refers to the time interval between the UE receiving the discovery signal and sending the trigger signal.

54. A transmission point, characterized by: including:

Processor, used to determine the configuration information of the discovered signal;

A transmitter, configured to send the discovery signal to the user equipment UE according to the configuration information of the discovery signal determined by the processor;

The processor is also used to determine the configuration information of the trigger signal;

A receiver configured to receive the trigger signal sent by the UE according to the configuration information of the trigger signal determined by the processor; wherein, the trigger signal carries first information; The first information includes: at least one of the received power information of the discovery signal, the transmit power information of the trigger signal, power offset information and first timing offset information; the power offset is refers to the offset value between the transmission power of the trigger signal and the transmission power of the discovery signal; the first timing offset information refers to the time interval between the UE receiving the discovery signal and sending the trigger signal ;

The processor is further configured to obtain the first information from the trigger signal; the processor is further configured to, when the transmission point is in a sleep state, configure the transmission point according to the first information. Switch from dormant state to active state; and/or,

The processor is further configured to increase the first transmission power according to the first information when the transmission point is in an active state; wherein the first transmission power is used when the transmission point transmits a common signal. of power.

55. A system for sending and receiving trigger signals, characterized by including: user equipment UE and transmission point; wherein,

The UE is the UE described in any one of claims 27-39; or the UE is the UE described in claim 53;

The transmission point is the transmission point described in any one of claims 40-52; or the transmission point is the transmission point described in claim 54.