CN105828448B

CN105828448B - Channel occupation method and device

Info

Publication number: CN105828448B
Application number: CN201510013146.4A
Authority: CN
Inventors: 彭佛才; 苟伟; 戴博; 李新彩
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-01-09
Filing date: 2015-01-09
Publication date: 2021-01-22
Anticipated expiration: 2035-01-09
Also published as: WO2016110138A1; CN105828448A

Abstract

The invention provides a method and a device for occupying a channel, wherein the method comprises the following steps: the method comprises the steps that an authorized carrier assisted access LAA site sends an occupation signal and/or a channel to a first LAA site and/or first LAA User Equipment (UE) around the LAA site through an unauthorized carrier and/or an authorized carrier, and the first LAA site and/or the first LAA User Equipment (UE) receive the occupation signal and/or the channel; wherein the occupation signal and/or the channel are used for indicating that the LAA site competes to the unlicensed carrier and occupation information that the LAA site occupies the unlicensed carrier. The invention solves the problems that the unauthorized carrier wave can be snatched, occupies long time and has hidden stations in the related technology, and improves the efficiency of channel occupation.

Description

Channel occupation method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for channel occupancy.

Background

Unlicensed carriers (i.e., unlicensed spectrum) refer to spectrum (or carriers) that can be used without authorization under the compliance with government regulations (radio regulations) such as the national radio regulatory commission. In our daily life, microwave ovens, remote control toy planes, Wireless mice, Wireless keyboards, high Fidelity Wireless internet (WiFi), LTE with authorized carrier assisted access (LAA), and the like all use unauthorized carriers.

A station (or device) should measure or sense a channel before using an unlicensed carrier (i.e., the "channel" refers to the unlicensed carrier). The process of sensing the Channel is called Clear Channel Assessment (CCA for short). For example, assuming a station measures a channel power of no less than-60 dBm over a 20MHz bandwidth, the station considers the channel as busy; below-60 dBm, it is idle.

After the LAA station performs CCA, the LAA station may find that the channel is busy, and the LAA station continues to perform CCA or wait; the LAA site may also find the channel free and the LAA site may start using the channel.

The time when the LAA station can start using the channel may not be aligned with the licensed carrier assisting the channel (the unlicensed carrier) in symbol and/or subframe, fig. 1 is a schematic diagram of the LAA station contending for the unlicensed carrier in the related art, as shown in fig. 1, the unlicensed carrier contends for the channel at the middle time of symbol 12 (i.e., 13 th symbol), and can start using the channel. But at this time is not aligned to the symbol boundary of the licensed carrier nor to the subframe boundary of the licensed carrier. The time from the time when the LAA station can start using the channel (i.e., the time when the channel is successfully contended to the subframe boundary) may be less than, equal to, or greater than one symbol.

Since the time when the LAA station successfully competes for the channel is not aligned to the symbol and/or subframe boundary, it brings difficulty to the LAA station to transmit data and the corresponding LAA terminal to receive data. If the transmission is waited for to start again at the subframe boundary, the channel (unlicensed carrier) may be snatched by another LAA site or WiFi site. If it is transmitted immediately, it is not known what content needs to be transmitted, the LAA terminal does not know how to receive, and the LAA site cannot schedule the downlink data (from the LAA site to the LAA terminal) of the channel (unlicensed carrier) across carriers.

Fig. 2 is a diagram illustrating a second example of an LAA station contending for an unlicensed carrier in the related art, where, as shown in fig. 2, if a frame structure of a licensed carrier assisting the channel (unlicensed carrier) is Time Division Duplex (TDD), and a time when the LAA station successfully contends for the channel is an uplink subframe of the TDD, an uplink portion of a special subframe, and a guard interval portion (GP) of the special subframe, the LAA station cannot schedule the channel (unlicensed carrier) across carriers. This means that the channel (unlicensed carrier) may be snatched by another LAA site or WiFi site. If a station does CCA continuously, it will consume some energy. The acquisition (right to use) of the unlicensed carrier may be obtained through contention.

Fig. 3 is a schematic diagram of an LAA site competing for an unlicensed carrier in the related art, as shown in fig. 3, if one LAA site (e.g., LAA-eNB 1) seizes a resource, a surrounding LAA site (e.g., LAA-eNB 2) does not know how long it takes, and thus may need to continuously perform CCA, thereby increasing energy consumption. In addition, if the surrounding LAA site (e.g., LAA-eNB 2) cannot directly hear the signal/energy of the LAA site, the problem of "hidden site" is also caused.

Aiming at the problems that the unauthorized carrier waves can be snatched, occupy time is long and a hidden station exists in the related technology, an effective solution is not provided at present.

Disclosure of Invention

The main objective of the present invention is to provide a method and an apparatus for channel occupation, so as to solve at least the problems of the related art that an unauthorized carrier is robbed, occupied time is long, and a hidden station exists.

According to an aspect of the present invention, there is provided a method of channel occupation, including: an authorized carrier assisted access LAA site sends an occupied signal and/or a channel to a first LAA site and/or first LAA User Equipment (UE) around the LAA site through an unauthorized carrier and/or an authorized carrier, and the first LAA site and/or the first LAA User Equipment (UE) receive the occupied signal and/or the channel; wherein the occupation signal and/or the channel are used for indicating the LAA site to compete to the unlicensed carrier and occupation information of the LAA site occupying the unlicensed carrier.

Further, the transmitting, by the licensed carrier assisted access LAA site, an occupied signal and/or channel to a first LAA site and/or a first LAA user equipment UE around the LAA site through an unlicensed carrier and/or a licensed carrier includes: the LAA site sends the occupation signal and/or the channel to the first LAA site and/or the first LAA User Equipment (UE) on the unlicensed carrier, and/or sends the channel to the first LAA site and/or the first LAA User Equipment (UE) on the licensed carrier; and/or the LAA site sends the occupied signal and/or channel to a second LAA user equipment UE on the unlicensed carrier, and/or sends the channel to the second LAA user equipment UE on the licensed carrier; and sending the occupation signal and/or the channel to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier by the second LAA user equipment UE, and/or sending the channel to the first LAA site and/or the first LAA user equipment UE on the licensed carrier.

Further, the occupancy signal comprises at least one of: cell-specific reference signals CRS, primary synchronization signals PSS, secondary synchronization signals SSS, channel state information reference signals CSI-RS, positioning reference signals PRS, sounding reference signals SRS, random access preambles.

Further, the transmitting, by the LAA site and/or the second LAA user equipment UE, the occupation signal to the first LAA site and/or the first LAA user equipment UE through the unlicensed carrier may include: and when the occupation signal consists of the CRS and the PSS, the LAA site and/or the second LAA user equipment UE transmits the PSS on the central 6 physical resource blocks PRB of the unlicensed carrier, and transmits the CRS on other PRBs of the unlicensed carrier.

Further, the transmitting, by the LAA site and/or the second LAA user equipment UE, the occupation signal to the first LAA site and/or the first LAA user equipment UE through the unlicensed carrier may include: and the LAA site and/or the second LAA user equipment UE repeatedly transmits the PSS to the first LAA site and/or the first LAA user equipment UE in the unlicensed carrier by taking 6 continuous or discontinuous PRBs as a unit.

Further, the transmitting, by the LAA site and/or the second LAA user equipment UE, the occupation signal to the first LAA site and/or the first LAA user equipment UE through the unlicensed carrier may include: when the occupation signal is composed of the CRS and the SSS, the LAA site and/or the second LAA user equipment UE transmits the SSS to the first LAA site and/or the first LAA user equipment UE on the central 6 PRBs of the unlicensed carrier, and transmits the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier, wherein the other PRBs are PRBs left except the central 6 PRBs of the unlicensed carrier.

Further, the transmitting, by the LAA site and/or the second LAA user equipment UE, the occupation signal to the first LAA site and/or the first LAA user equipment UE through the unlicensed carrier may include: the LAA site and/or the second LAA user equipment UE repeatedly transmit the SSS to the first LAA site and/or the first LAA user equipment UE in the unlicensed carrier in units of 6 continuous or discontinuous PRBs.

Further, the transmitting, by the LAA site and/or the second LAA user equipment UE, the occupation signal to the first LAA site and/or the first LAA user equipment UE through the unlicensed carrier may include: when the occupied signal is composed of the CRS, the PSS, and the SSS, the LAA site and/or the second LAA user equipment UE transmit the PSS and the SSS to the first LAA site and/or the first LAA user equipment UE on the central 12 PRBs of the unlicensed carrier, and transmit the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier, wherein the PSS and the SSS each occupy 6 consecutive PRBs out of the 12 PRBs, and the other PRBs are PRBs remaining except the central 12 PRBs of the unlicensed carrier.

Further, the PSS and SSS each occupy 6 consecutive ones of the 12 PRBs in a manner that includes one of: the PSS is preempting 6 consecutive PRBs, or the SSS is preempting 6 consecutive PRBs.

Further, the duration of the occupied signal is less than, equal to or greater than the duration of a specified symbol, wherein the duration of the specified symbol is 2208 samples or 2192 samples, and the duration of one sample is 1/(2048 × 15000) seconds.

Further, when the LAA station competes for the unlicensed carrier, a time from a subframe boundary where a current subframe and a next subframe of the licensed carrier border to the unlicensed carrier when the LAA station competes for the unlicensed carrier is marked as M sampling points, where M is a non-negative integer.

Further, the sending, by the LAA site, the occupation signal to the first AA site and/or the first LAA user equipment UE through the unlicensed carrier includes: when M is less than or equal to 2048, copying the contents of the 2048-M +1 to 2048 th sampling points of the next symbol of the current symbol of the unauthorized carrier by the LAA site, and starting to transmit the contents of the copied M sampling points on the unauthorized carrier from the moment of competing to the unauthorized carrier; when M is greater than 2048 but less than or equal to 2192, copying the contents of the 1 st to Mth sampling points of the next symbol of the current symbol of the unauthorized carrier by the LAA site, and starting to transmit the contents of the copied M sampling points on the unauthorized carrier from the moment of competing to the unauthorized carrier; when M is larger than 2192, the LAA site copies the content of 2nd to 2192 sampling points of the next symbol of the unlicensed carrier, and repeatedly transmits the content of the copied 2192 sampling points on the unlicensed carrier from the moment of competing to the unlicensed carrier until the next subframe boundary of the licensed carrier.

Further, the transmitting, by the LAA site, the occupation signal to the first LAA site and/or the first LAA user equipment UE through the unlicensed carrier includes: when M is less than or equal to 2048, the LAA site starts to transmit the CRS or other occupied signals of the foremost M sampling points of 2048 sampling points on the unlicensed carrier from the moment of competing to the unlicensed carrier; when M is greater than 2048 but less than or equal to 2192, the LAA station transmits the CRS or other occupied signals of the foremost M of the 2192 sampling points on the unlicensed carrier from the moment of occupying the unlicensed carrier, wherein the content of the foremost 144 sampling points in the CRS or other occupied signals of the 2192 sampling points is a copy of the rearmost 144 sampling points; when M is larger than 2192, the LAA site repeatedly sends the CRS or other occupying signals of 2192 sampling points on the unlicensed carrier from the moment of occupying the unlicensed carrier to a subframe boundary of a junction between a current subframe and a next subframe of the licensed carrier; or, when M is greater than 2192, the LAA station transmits the CRS or other occupancy signals of the first Mod (M, 2192) sampling points of the 2192 sampling points on the unlicensed carrier from the time of contention to the unlicensed carrier, and then repeatedly transmits the CRS or other occupancy signals of the 2192 sampling points until a subframe boundary where a current subframe and a next subframe of the licensed carrier intersect, wherein Mod (M, 2192) is used for indicating modulo M by 2192.

Further, the transmitting, by the LAA site, the occupation signal to the first LAA site and/or the first LAA user equipment UE through an unlicensed carrier includes: when M is less than or equal to 2048, the LAA site starts to transmit cell-specific reference signals (CRSs) of 2048+ K sampling points or other occupied signals from the time of competition to a channel on the unlicensed carrier, wherein K is a non-negative integer not exceeding 160; or, when M is less than or equal to 2048 and when the LAA station transmits a cell-specific reference signal CRS of 2048+ K samples or other the occupancy signal on the unlicensed carrier, the first 2048+ K-M samples of the next subframe of the current subframe of the unlicensed carrier will be punctured.

Further, the manner in which the LAA station transmits the CRS includes: the LAA site transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB), wherein the CRS is used for indicating different cell information of the LAA site on different REs.

Further, the cell information includes: antenna port information, time length information of the LAA site occupying the unauthorized carrier, and cell identification number information of the unauthorized carrier.

Further, the one PRB includes 12 REs in one time domain symbol, where the REs are numbered as RE0, RE1, RE2, and up to RE11 in order from low to high in frequency.

Further, the transmitting, by the LAA station, the CRS on different resource elements RE of one physical resource block PRB includes: when the LAA site transmits the CRS by using 1 antenna port, the LAA site transmits the CRS on RE0, RE4 and RE8, wherein the result of taking the modulo 12 of the Cell identification number Cell _ ID of the unlicensed carrier transmitted by the CRS on different REs is equal to the number of the RE when the CRS is transmitted on different REs.

Further, the transmitting, by the LAA station, the CRS on different resource elements RE of one physical resource block PRB includes: when the LAA station transmits the CRS with 2 antenna ports, the LAA station transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE1, RE5, RE 9.

Further, the transmitting, by the LAA station, the CRS on different resource elements RE of one physical resource block PRB includes: when the LAA station transmits the CRS with 2 antenna ports, the LAA station transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE2, RE6, RE 10.

Further, the result of taking the module of 6 for the Cell identification number Cell _ ID of the unlicensed carrier transmitted by the CRS on a different RE is equal to the number of the RE when the CRS with a smaller port number is transmitted on a different RE divided by 2, and the result of taking the module of 6 for the Cell identification number Cell _ ID is equal to the number of the RE when the CRS with a larger port number is transmitted on a different RE minus one divided by 2.

Further, the transmitting, by the LAA station, the CRS on different resource elements RE of one physical resource block PRB includes: when the LAA site transmits the CRS with 4 antenna ports, the LAA site transmits the CRS of the 1 st port on RE0, RE4, RE8, transmits the CRS of the 2 nd port on RE1, RE5, RE9, transmits the CRS of the 3 rd port on RE2, RE6, RE10, and transmits the CRS of the 4 th port on RE3, RE7, RE 11.

Further, the transmitting, by the LAA station, the CRS on different resource elements RE of one physical resource block PRB includes: when the LAA site transmits the CRS with 4 antenna ports, the LAA site transmits the CRS of the 1 st port on RE0, RE4, RE8, transmits the CRS of the 2 nd port on RE2, RE6, RE10, transmits the CRS of the 3 rd port on RE1, RE5, RE9, and transmits the CRS of the 4 th port on RE3, RE7, RE 11.

Further, the time length information is expressed by one of the following modes: using CRS of different sequences or other said occupation signals to represent different time length information for occupying said unlicensed carrier; using CRS of different pseudo random sequences or other said occupation signals to represent different time length information for occupying said unlicensed carrier; using the occupancy signals of different Zadoff-Chu sequences to represent different time length information for occupying the unlicensed carrier.

Further, the transmitting, by the licensed carrier assisted access LAA site, an occupied signal and/or channel to a first LAA site and/or a first LAA user equipment UE around the LAA site through an unlicensed carrier and/or a licensed carrier includes: the LAA site sends a Physical Downlink Control Channel (PDCCH) and/or an Enhanced Physical Downlink Control Channel (EPDCCH) on the authorized carrier; and/or the LAA site sends a Physical Downlink Control Channel (PDCCH) and/or an Enhanced Physical Downlink Control Channel (EPDCCH) on the unlicensed carrier; wherein the PDCCH and the EPDCCH are used for indicating occupation information and/or scheduling information of one or more unlicensed carriers, wherein the occupation information comprises: occupation time starting point information and the occupation time length information.

Further, comprising: the occupation time starting point information includes: symbol starting point information and sampling point starting point information of a first symbol of a current subframe; the symbol start point information is the second symbol relative to the authorized carrier at the time when the LAA site occupies the unlicensed carrier, wherein the symbol start point information is represented by 4 bits; the sampling point starting point information of the first symbol is the second sampling point relative to the current symbol where the authorized carrier is located at the moment when the LAA station competes for the unauthorized carrier, wherein the sampling point starting point information of the first symbol is represented by 12 bits.

Further, the information of the start of the sampling point of the first symbol includes one of: the starting point information of the sampling point of the first symbol is represented by 7 bits, wherein the measurement unit of the starting point information of the sampling point is 32 sampling points; or, the sampling point starting point information of the first symbol is represented by 8 bits, wherein the measurement unit of the sampling point starting point information is 16 sampling points; or, the sampling point starting point information of the first symbol is represented by 9 bits, wherein the measurement unit of the sampling point starting point information is 8 sampling points; or, the sampling point starting point information of the first symbol is represented by 10 bits, wherein the measurement unit of the sampling point starting point information is 4 sampling points; or, the sampling point starting point information of the first symbol is represented by 11 bits, wherein the measurement unit of the sampling point starting point information is 2 sampling points.

Further, the occupied time length information is represented by 2 bits, wherein "00", "01", "10", "11" indicated by the 2 bits sequentially represent subframes occupying 1,2,3, 4 one millisecond respectively; or, the occupied time length information is represented by 2 bits, where "00", "01", "10", "11" indicated by the 2 bits sequentially represent subframes occupying 1,2, 4, 10 one millisecond, respectively; or, the occupied time length information is represented by 3 bits, where "000", "001", "010", "011", "100", "101", "110", "111" indicated by the 3 bits sequentially represents subframes occupying 1,2,3, 4 one millisecond respectively; or, the occupied time length information is represented by 3 bits, where "000", "001", "010", "011", "100", "101", "110", "111" indicated by the 3 bits sequentially represents subframes occupying 1,2,3, 4, 5, 6, 8, 10 one millisecond, respectively; or, the occupied time length information is represented by 4 bits, where "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" indicated by the 4 bits sequentially represent subframes occupying 1,2,3, 4, 5, 6, 7, 8, 9, 10, one millisecond, respectively.

Further, the sending, by the LAA site, a channel to the first LAA site and/or the first LAA user equipment UE through a licensed carrier includes: when the authorized carrier is Time Division Duplex (TDD) and the LAA site competes for the unauthorized carrier relative to an uplink subframe of the authorized carrier, or an uplink pilot time slot (UpPTS) of a TDD special subframe, or a guard interval (GP) of the TDD special subframe, or a downlink pilot time slot (DwPTS) of the TDD special subframe, the LAA site sends an Enhanced Physical Downlink Control Channel (EPDCCH) on the uplink subframe of the TDD of the authorized carrier, wherein the EPDCCH is used for indicating the occupation information and/or scheduling information of the LAA site on one or more unauthorized carriers.

Further, the sending, by the LAA site, a channel to the first LAA site and/or the first LAA user equipment UE via the authorization carrier includes: when the authorized carrier is Time Division Duplex (TDD) and the LAA site competes for the unlicensed carrier relative to an uplink subframe, an uplink pilot time slot (UpPTS) of the TDD, or a guard interval (GP) of a TDD special subframe, or a downlink pilot time slot (DwPTS) of the TDD special subframe, the LAA site sends a Physical Downlink Control Channel (PDCCH), and/or an Enhanced Physical Downlink Control Channel (EPDCCH), and/or an occupation signal on the downlink pilot time slot (DwPTS) of the TDD special subframe of the authorized carrier, wherein the PDCCH, the EPDCCH, and the occupation signal are used for indicating occupation information and/or scheduling information of the LAA site on one or more unlicensed carriers.

Further, comprising: when a second LAA user equipment has no Physical Uplink Shared Channel (PUSCH) transmission, no Physical Uplink Control Channel (PUCCH) transmission, no Physical Random Access Channel (PRACH) transmission and no Sounding Reference Signal (SRS) transmission on the uplink subframe of the TDD of the authorized carrier, the LAA site transmits the EPDCCH to the second LAA User Equipment (UE) on the uplink subframe of the TDD of the authorized carrier; or, when the second LAA user equipment has a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH or a physical random access channel PRACH or a sounding reference signal SRS on the uplink subframe of the TDD of the licensed carrier, the LAA site receives or does not receive the EPDCCH transmitted by the LAA site to the second LAA user equipment UE on the uplink subframe of the TDD of the licensed carrier; the LAA site performs puncturing on the last symbol of the Enhanced Physical Downlink Control Channel (EPDCCH) on the uplink subframe of the TDD of the authorized carrier, wherein the puncturing is used for indicating that resource units (RE) on the symbol are not transmitted and setting the power to zero; the LAA site performs rate matching on Resource Elements (REs) of the Enhanced Physical Downlink Control Channel (EPDCCH) on the TDD uplink subframe of the authorized carrier except for the last symbol.

Further, the sending, by the LAA site, a channel to the first LAA site and/or the first LAA user equipment UE through a licensed carrier includes: when the authorized carrier is Time Division Duplex (TDD) and the LAA site competes for the unauthorized carrier relative to the uplink pilot time slot (UpPTS) of the uplink subframe or the TDD special subframe of the authorized carrier or the guard interval (GP) of the TDD special subframe or the downlink pilot time slot (DwPTS) of the TDD special subframe, the LAA site sends the PDCCH and/or the EPDCCH on the next downlink subframe after the end of the uplink subframe of the TDD of the authorized carrier, wherein the PDCCH and/or the EPDCCH are used for indicating scheduling information of the LAA site on one or more unauthorized carriers.

Further, comprising: and when the authorized carrier is Time Division Duplex (TDD), the second LAA User Equipment (UE) starts to receive and buffer the data of the unauthorized carrier at the start time of a guard interval (GP) of a TDD special subframe of the authorized carrier, or the start time of an uplink pilot time slot (UpPTS) of the TDD special subframe, or the start time of a downlink pilot time slot (DwPTS) of the TDD special subframe, or the start time of the uplink subframe of the TDD special subframe.

Further, the sending, by the LAA site, a channel to the first LAA site and/or the first LAA user equipment UE through a licensed carrier includes: when the licensed carrier is TDD, the LAA site sends the PDCCH and/or the EPDCCH to the second LAA user equipment UE on the licensed carrier, wherein the second LAA user equipment UE decodes the PDCCH and/or the EPDCCH to obtain the scheduling information, wherein the scheduling information is used to instruct to decode the buffered data of the unlicensed carrier, and the second LAA user equipment UE obtains different cell information and/or the occupancy information and/or the scheduling information according to the received occupancy signal and/or the PDCCH and/or the EPDCCH.

Further, the method further comprises: the LAA site receives an occupied signal and/or a channel sent by the second LAA user equipment UE on the unlicensed carrier wave according to the different cell information, and/or the occupied information, and/or the scheduling information; and/or a random access preamble and/or a Sounding Reference Signal (SRS) transmitted on the unlicensed carrier; and/or the LAA site receives the occupation signal and/or the channel sent by the second LAA user equipment UE on the authorized carrier according to the different cell information, and/or the occupation information, and/or the scheduling information; and/or transmitting a random access preamble and/or a Sounding Reference Signal (SRS) on the authorized carrier.

Further, the method further comprises: the first LAA site and/or the first LAA user equipment UE obtaining the different cell information, and/or the occupancy information, and/or the scheduling information according to the occupancy signal, and/or the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS received on the unlicensed carrier; and/or the first LAA site and/or the first LAA user equipment UE acquire the different cell information, and/or the occupancy information, and/or the scheduling information according to the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS received on the licensed carrier.

According to another aspect of the present invention, there is provided an apparatus for channel occupation, located on a site side of an licensed assisted access LAA, including: a sending module, configured to send an occupied signal and/or a channel to a first LAA site and/or a first LAA user equipment UE around the LAA site through an unlicensed carrier and/or a licensed carrier, where the first LAA site and/or the first LAA user equipment UE receive the occupied signal and/or the channel sent by the sending module; the occupation signal and/or the channel are/is used for indicating the LAA site to compete to the unlicensed carrier and occupation information of the LAA site occupying the unlicensed carrier.

Further, the sending module is configured to send the occupied signal and/or channel to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier, and/or send the channel to the first LAA site and/or the first LAA user equipment UE on the licensed carrier; and/or for transmitting the occupancy signal and/or channel to a second LAA user equipment UE on the unlicensed carrier and/or for transmitting the channel to the second LAA user equipment UE on the licensed carrier; and sending the occupation signal and/or the channel to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier by the second LAA user equipment UE, and/or sending the channel to the first LAA site and/or the first LAA user equipment UE on the licensed carrier.

Further, the sending module is configured to send the PSS on the central 6 physical resource blocks, PRBs, of the unlicensed carrier and send the CRS on other PRBs of the unlicensed carrier when the occupied signal is composed of the CRS and the PSS.

Further, the transmitting module is configured to repeatedly transmit the PSS to the first LAA site and/or the first LAA user equipment UE in units of 6 consecutive or discontinuous PRBs on the unlicensed carrier.

Further, the sending module is configured to send the SSS to the first LAA site and/or the first LAA user equipment UE on the central 6 PRBs of the unlicensed carrier and send the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier when the occupied signal consists of the CRS and the SSS, where the other PRBs are PRBs remaining except for the central 6 PRBs of the unlicensed carrier.

Further, the sending module is configured to repeatedly send the SSS to the first LAA site and/or the first LAA user equipment UE in the unlicensed carrier in units of 6 consecutive or discontinuous PRBs.

Further, the transmitting module is configured to transmit the PSS and the SSS to the first LAA site and/or the first LAA user equipment UE on central 12 PRBs of the unlicensed carrier and transmit the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier when the occupied signal is composed of the CRS, the PSS and the SSS, where the PSS and the SSS each occupy 6 consecutive PRBs of the 12 PRBs and the other PRBs are remaining PRBs except for the central 12 PRBs of the unlicensed carrier.

Further, the duration of the occupied signal is less than, equal to or greater than the duration of a specified symbol, where the duration of the specified symbol is 2208 samples or 2192 samples, and the duration of one sample is 1/(2048 × 15000) seconds.

Further, the apparatus comprises: and the marking module is used for marking M sampling points when the time from the time when the LAA site competes to the unauthorized carrier to a subframe boundary of a current subframe and a next subframe of the authorized carrier is equal to the time when the LAA site competes to the unauthorized carrier, wherein M is a nonnegative integer.

Further, the apparatus comprises: the first copying module is used for copying the contents of the 2048-M +1 to 2048 th sampling points of the next symbol of the current symbol of the unauthorized carrier when M is less than or equal to 2048; the sending module is further configured to send the content of the copied M sampling points on the unlicensed carrier from a time when the unlicensed carrier is contended to; or, the second copying module is used for copying the contents of the 1 st to M-th sampling points of the next symbol of the current symbol of the unauthorized carrier when M is greater than 2048 but less than or equal to 2192; the sending module is configured to send the copied contents of M sampling points on the unlicensed carrier from a time when the unlicensed carrier is contended to; or, the third copying module is used for copying the content of 2192 sampling points from 1 st to 2192 nd symbols of the next unauthorized carrier when the M is larger than 2192; the sending module is configured to repeatedly send the contents of the copied 2192 sample points on the unlicensed carrier from the time of contention to the unlicensed carrier until the next subframe boundary of the licensed carrier.

Further, the apparatus further comprises: a fourth copying module, configured to, when M is less than or equal to 2048, start sending, by the sending module, the CRS or other occupancy signals of the top M sampling points of the 2048 sampling points on the unlicensed carrier from a time when contention to the unlicensed carrier occurs; or, a fifth copying module, configured to transmit, by the transmitting module, the CRS or other occupied signals of top M of the 2192 sampling points on the unlicensed carrier from a time when the unlicensed carrier is occupied, when M is greater than 2048 but less than or equal to 2192, where contents of top 144 sampling points in the CRS or other occupied signals of the 2192 sampling points are copies of bottom 144 sampling points; or, a sixth replication module, configured to, when M is greater than 2192, repeat, by the LAA station, on the unlicensed carrier, sending the CRS or other occupied signals of 2192 sampling points, through the sending module, from a time when the unlicensed carrier is occupied, until a subframe boundary between a current subframe and a next subframe of the licensed carrier; or, the sixth replication module is configured to, when M is greater than 2192, transmit, by the LAA station, the CRS or other occupancy signals of the first Mod (M, 2192) sampling points of the 2192 sampling points on the unlicensed carrier from a time of contention to the unlicensed carrier through the transmission module, and then repeatedly transmit the CRS or other occupancy signals of the 2192 sampling points until a subframe boundary where a current subframe and a next subframe of the licensed carrier intersect, where Mod (M, 2192) is used to indicate modulo 2192 of M.

Further, the sending module is configured to send a cell-specific reference signal CRS or other occupancy signals of 2048+ K sampling points on the unlicensed carrier from a time of contention to a channel when M is less than or equal to 2048, where K is a non-negative integer not exceeding 160; or, when M is less than or equal to 2048 and when the LAA station transmits a cell-specific reference signal CRS of 2048+ K samples or other the occupancy signal on the unlicensed carrier, the first 2048+ K-M samples of the next subframe of the current subframe of the unlicensed carrier will be punctured.

Further, the manner in which the LAA station transmits the CRS includes: transmitting the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB), wherein the CRS is used for indicating different cell information of the LAA site on different REs.

Further, the manner of transmitting the CRS on different resource elements RE of one physical resource block PRB includes: when the LAA site transmits the CRS with 1 antenna port, the transmitting module transmits the CRS over RE0, RE4, and RE8, wherein a result of taking a modulo of 12 from a Cell identification number Cell _ ID of the unlicensed carrier transmitted by the CRS over different REs is equal to a number of the RE when the CRS is transmitted over different REs.

Further, the transmitting, by the LAA station, the CRS pattern on different resource elements RE of one physical resource block PRB includes: when the LAA site transmits the CRS with 2 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE1, RE5, RE 9.

Further, the manner in which the LAA station transmits the CRS on different resource elements RE of one physical resource block PRB includes: when the LAA site transmits the CRS with 2 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE2, RE6, RE 10.

Further, the manner in which the LAA station transmits the CRS on different resource elements RE of one physical resource block PRB includes: when the LAA site transmits the CRS with 4 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, and RE8, transmits the CRS of the 2 nd port on RE1, RE5, and RE9, transmits the CRS of the 3 rd port on RE2, RE6, and RE10, and transmits the CRS of the 4 th port on RE3, RE7, and RE 11.

Further, the manner in which the LAA station transmits the CRS on different resource elements RE of one physical resource block PRB includes: when the LAA site transmits the CRS with 4 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, and RE8, transmits the CRS of the 2 nd port on RE2, RE6, and RE10, transmits the CRS of the 3 rd port on RE1, RE5, and RE9, and transmits the CRS of the 4 th port on RE3, RE7, and RE 11.

Further, the sending module is further configured to send a physical downlink control channel PDCCH and/or an enhanced physical downlink control channel EPDCCH on the authorized carrier; and/or, transmitting a Physical Downlink Control Channel (PDCCH) and/or an Enhanced Physical Downlink Control Channel (EPDCCH) on the unlicensed carrier; wherein the PDCCH and the EPDCCH are used for indicating occupation information and/or scheduling information of one or more unlicensed carriers, wherein the occupation information comprises: occupation time starting point information and the occupation time length information.

Further, the occupied time length information is represented by 2 bits, wherein "00", "01", "10", "11" indicated by the 2 bits respectively represent subframes occupying 1,2,3, 4 one millisecond; or, the occupied time length information is represented by 2 bits, where "00", "01", "10", "11" indicated by the 2 bits respectively represent subframes occupying 1,2, 4, 10 one millisecond; or, the occupied time length information is represented by 3 bits, where "000", "001", "010", "011", "100", "101", "110", "111" indicated by the 3 bits sequentially represents subframes occupying 1,2,3, 4 one millisecond respectively; or, the occupied time length information is represented by 3 bits, where "000", "001", "010", "011", "100", "101", "110", "111" indicated by the 3 bits sequentially represents subframes occupying 1,2,3, 4, 5, 6, 8, 10 one millisecond, respectively; or, the occupied time length information is represented by 4 bits, where "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111" indicated by the 4 bits sequentially represent subframes occupying 1,2,3, 4, 5, 6, 7, 8, 9, 10, one millisecond, respectively.

Further, the sending module is further configured to send an enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the licensed carrier when the licensed carrier is TDD and the LAA site competes for the unlicensed carrier relative to an uplink subframe of the TDD, or an uplink pilot timeslot UpPTS of a TDD special subframe, or a guard interval GP of the TDD special subframe, or a downlink pilot timeslot DwPTS of the TDD special subframe of the licensed carrier, where the EPDCCH is used to indicate occupancy information and/or scheduling information of the LAA site on one or more unlicensed carriers.

Further, the sending module is configured to send a physical downlink control channel PDCCH, and/or an enhanced physical downlink control channel EPDCCH, and/or an occupancy signal on a downlink pilot time slot DwPTS of a TDD special subframe of the licensed carrier when the licensed carrier is TDD and the LAA station competes for the unlicensed carrier relative to the uplink pilot time slot UpPTS of the TDD, or a guard interval GP of the TDD special subframe, or the downlink pilot time slot DwPTS of the TDD special subframe of the licensed carrier, where the PDCCH, the EPDCCH, and the occupancy signal are used to indicate occupancy information and/or scheduling information of the LAA station on one or more unlicensed carriers.

Further, comprising: the sending module is configured to send the EPDCCH to the second LAA user equipment UE on the uplink subframe of the TDD of the authorized carrier when the second LAA user equipment has no transmission of a physical uplink shared channel PUSCH, no transmission of a physical uplink control channel PUCCH, no transmission of a physical random access channel PRACH, and no transmission of a sounding reference signal SRS; or, on the uplink subframe of the TDD of the licensed carrier, when the second LAA user equipment has a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH or a physical random access channel PRACH or a sounding reference signal SRS, the EPDCCH sent by the LAA site is received or not received on the uplink subframe of the TDD of the licensed carrier to the second LAA user equipment UE; a puncturing module, configured to puncture a last symbol of the enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the licensed carrier, where the puncturing is used to indicate that a resource element RE on the symbol is not sent, and set a power to zero; a matching module, configured to perform rate matching on resource elements RE of the enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the licensed carrier except for a last symbol.

Further, the sending module is configured to send the PDCCH and/or the EPDCCH on a next downlink subframe after an uplink subframe of the TDD of the licensed carrier ends when the licensed carrier is a Time Division Duplex (TDD) and the LAA site competes for the unlicensed carrier relative to an uplink pilot timeslot (UpPTS) of an uplink subframe or a TDD special subframe of the TDD or a guard interval (GP) of the TDD special subframe or a downlink pilot timeslot (DwPTS) of the TDD special subframe of the licensed carrier, where the PDCCH and/or the EPDCCH are used to indicate scheduling information of the LAA site for one or more unlicensed carriers.

Further, the sending module is configured to send the PDCCH and/or the EPDCCH to the second LAA user equipment UE on the licensed carrier when the licensed carrier is TDD, where the second LAA user equipment UE decodes the PDCCH and/or the EPDCCH to obtain the scheduling information, where the scheduling information is used to indicate that the buffered data of the unlicensed carrier is decoded, and the second LAA user equipment UE obtains different cell information and/or the occupancy information and/or the scheduling information according to the received occupancy signal and/or the PDCCH and/or the EPDCCH.

Further, the apparatus further comprises: a receiving module, configured to receive an occupied signal and/or a channel sent by the second LAA user equipment UE on the unlicensed carrier according to the different cell information, and/or the occupied information, and/or the scheduling information; and/or a random access preamble and/or a Sounding Reference Signal (SRS) transmitted on the unlicensed carrier; and/or receiving an occupation signal and/or a channel sent by the second LAA User Equipment (UE) on the authorized carrier according to the different cell information, and/or the occupation information, and/or the scheduling information; and/or transmitting a random access preamble and/or a Sounding Reference Signal (SRS) on the authorized carrier.

Further, the sending module is further configured to send the occupied signal, and/or the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier, where the occupied signal, and/or the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS is used to instruct the first LAA site and/or the first LAA user equipment UE to fetch the different cell information, and/or the occupied information, and/or the scheduling information; and/or the transmitting module is further configured to transmit the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS to the first LAA site and/or the first LAA user equipment UE on the licensed carrier, where the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS are used to instruct the first LAA site and/or the first LAA user equipment UE to acquire the different cell information, and/or the occupancy information, and/or the scheduling information.

According to the invention, the LAA site sends the occupation signal and/or the channel to the first LAA site and/or the first LAA user equipment UE around the LAA site through the unauthorized carrier and/or the authorized carrier, wherein the occupation signal and/or the channel is used for indicating the LAA site to compete to the unauthorized carrier and the occupation information of the LAA site occupying the unauthorized carrier, so that the problems that the unauthorized carrier can be snatched out, the occupation time is long and a hidden site exists in the related technology are solved, and the channel occupation efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a first diagram illustrating an LAA station contending for an unlicensed carrier in the related art;

fig. 2 is a diagram illustrating a second example of contention of an LAA station to an unlicensed carrier in the related art;

fig. 3 is a third diagram illustrating the LAA station contending for an unlicensed carrier in the related art;

fig. 4 is a flow chart of a method of channel occupancy according to an embodiment of the present invention;

fig. 5 is a block diagram of an apparatus for channel occupancy according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an LAA site transmitting an occupancy signal upon contending for an unlicensed carrier in accordance with an alternative embodiment of the present invention;

fig. 7 is a schematic diagram of a distribution of CRSs occupying a single port on one PRB according to an alternative embodiment of the present invention;

FIG. 8 is a first diagram illustrating a distribution of occupied signals as PSS over the entire system bandwidth, according to an alternative embodiment of the present invention;

FIG. 9 is a second schematic diagram of the distribution of occupied signals as PSS over the entire system bandwidth according to an alternative embodiment of the present invention;

fig. 10 is a first diagram illustrating distribution of occupied signals PSS + SSS + CRS over the entire system bandwidth according to an alternative embodiment of the present invention;

fig. 11 is a schematic diagram illustrating a distribution of CRSs on one PRB with dual ports occupied according to an alternative embodiment of the present invention;

fig. 12 is a diagram illustrating that the licensed carrier of the LAA site is in TDD duplex mode and contends for the unlicensed carrier at the middle time of a special subframe S according to an alternative embodiment of the present invention;

fig. 13 is another schematic diagram of CRS distribution on a PRB with dual-ported occupied signals according to an alternative embodiment of the present invention;

fig. 14 is a schematic diagram illustrating distribution of an occupied signal as a random access Preamble over the entire system bandwidth according to an alternative embodiment of the present invention; and

fig. 15 is a diagram illustrating a distribution of occupied signals PSS + SSS + CRS over the entire system bandwidth according to an alternative embodiment of the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The present embodiment provides a method for channel occupation, fig. 4 is a flowchart of the method for channel occupation according to the embodiment of the present invention, and as shown in fig. 4, the steps of the method include:

step S402: the method comprises the steps that an authorized carrier assisted access LAA site sends an occupation signal and/or a channel to a first LAA site and/or first LAA User Equipment (UE) around the LAA site through an unauthorized carrier and/or an authorized carrier;

step S404: a first LAA site and/or a first LAA User Equipment (UE) receives an occupied signal and/or a channel;

wherein the occupation signal and/or the channel are used for indicating the LAA site to compete to the unlicensed carrier and occupation information of the LAA site occupying the unlicensed carrier.

In this embodiment, the LAA site sends an occupation signal and/or a channel to the first LAA site and/or the first LAA user equipment UE around the LAA site through the unlicensed carrier and/or the licensed carrier, which solves the problems in the related art that the unlicensed carrier is robbed, the occupation duration is long, and a "hidden site" exists, and improves the efficiency of channel occupation.

For the occupancy information involved in the present embodiment, if a "signal" is transmitted, the occupancy information may include a cell ID, a time duration, an antenna port, and the like. If a "channel" is transmitted, the occupancy information includes a symbol start point, a few symbols, a time duration, scheduling information, etc.

Optionally, the transmitting, by the licensed carrier assisted access LAA site, the occupied signal and/or channel to the first LAA site and/or the first LAA user equipment UE around the LAA site through the unlicensed carrier and/or the licensed carrier includes:

the LAA site sending the occupied signal and/or channel to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier and/or sending the channel to the first LAA site and/or the first LAA user equipment UE on the licensed carrier; and/or the presence of a gas in the gas,

the LAA site sending the occupied signal and/or channel to a second LAA user equipment UE on the unlicensed carrier and/or sending the channel to the second LAA user equipment UE on the licensed carrier; and sending the occupied signal and/or channel to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier via the second LAA user equipment UE and/or sending the channel to the first LAA site and/or the first LAA user equipment UE on the licensed carrier.

The occupancy signal referred to in this embodiment includes at least one of: cell-specific Reference Signals (CRS for short), Primary Synchronization Signals (PSS for short), Secondary Synchronization Signals (SSS for short), Channel State Information Reference Signals (CSI-RS for short), Positioning Reference Signals (PRS for short), Sounding Reference Signals (SRS for short), and random access preambles.

Based on the combination of the occupancy signals, the manner in which the LAA site and/or the second LAA user equipment UE transmit the occupancy signal to the first LAA site and/or the first LAA user equipment UE through the unlicensed carrier in this embodiment may be implemented by the following optional embodiments:

the first optional implementation mode: when the occupied signal is composed of the CRS and the PSS, the LAA site and/or the second LAA UE transmits the PSS on the central 6 Physical Resource Blocks (PRBs) of the unlicensed carrier, and transmits the CRS on the other PRBs of the unlicensed carrier.

Optional embodiment two: the LAA site and/or the second LAA user equipment UE repeatedly transmit the PSS to the first LAA site and/or the first LAA user equipment UE in 6 continuous or discontinuous PRBs on the unlicensed carrier.

Optional embodiment three: when the occupied signal consists of the CRS and the SSS, the LAA site and/or the second LAA user equipment UE transmits the SSS to the first LAA site and/or the first LAA user equipment UE on the central 6 PRBs of the unlicensed carrier, and transmits the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier, wherein the other PRBs are PRBs left except the central 6 PRBs of the unlicensed carrier.

Optional implementation mode four: the LAA site and/or the second LAA user equipment UE repeatedly transmit the SSS to the first LAA site and/or the first LAA user equipment UE in 6 consecutive or non-consecutive PRBs units on the unlicensed carrier.

Optional embodiment five: when the occupied signal is composed of the CRS, the PSS and the SSS, the LAA site and/or the second LAA UE transmit the PSS and the SSS to the first LAA site and/or the first LAA UE on the central 12 PRBs of the unlicensed carrier, and transmit the CRS to the first LAA site and/or the first LAA UE on other PRBs of the unlicensed carrier, wherein the PSS and the SSS each occupy 6 consecutive PRBs out of the 12 PRBs, and the other PRBs are remaining PRBs except the central 12 PRBs of the unlicensed carrier.

However, for the way that the PSS and the SSS in the fifth alternative embodiment each occupy 6 consecutive PRBs out of 12 PRBs, the following can be implemented: the PSS is preempting 6 consecutive PRBs, or the SSS is preempting 6 consecutive PRBs.

The duration of the occupied signal referred to in the above embodiment may be smaller than, equal to, or larger than the duration of a specific symbol, where the duration of the specific symbol is 2208 samples or 2192 samples, and the duration of the one sample is 1/(2048 × 15000) seconds.

In addition, in this embodiment, when the LAA station competes for the unlicensed carrier, a time from a subframe boundary between a current subframe and a next subframe of the licensed carrier when the LAA station competes for the unlicensed carrier is marked as M sampling points, where M is a non-negative integer.

Based on the difference in the value mode of M, the LAA site may transmit the occupied signal to the first AA site and/or the first LAA user equipment UE through the unlicensed carrier, which may be implemented by the following optional embodiments:

the first optional implementation mode:

when M is less than or equal to 2048, copying the contents of the 2048-M +1 to 2048 th sampling points of the next symbol of the current symbol of the unauthorized carrier by the LAA site, and starting to send the copied contents of the M sampling points on the unauthorized carrier from the moment of competing to the unauthorized carrier;

when M is more than 2048 but less than or equal to 2192, the LAA site copies the contents of the 1 st to Mth sampling points of the next symbol of the current symbol of the unauthorized carrier, and sends the copied contents of the M sampling points on the unauthorized carrier from the moment of competing to the unauthorized carrier;

when M is larger than 2192, the LAA site copies the content of 2nd to 2192 samples of the next symbol of the unlicensed carrier, and repeatedly sends the content of the copied 2192 samples from the time of competing to the unlicensed carrier on the unlicensed carrier until the next subframe boundary of the licensed carrier.

Optional embodiment two:

when M is less than or equal to 2048, the LAA site starts to send the CRS or other occupied signals of the foremost M sampling points of 2048 sampling points on the unlicensed carrier from the moment of competing to the unlicensed carrier;

when M is greater than 2048 but less than or equal to 2192, the LAA station transmits the CRS or other occupied signals of the foremost M of the 2192 sampling points on the unlicensed carrier from the time when the unlicensed carrier is occupied, wherein the content of the foremost 144 of the CRS or other occupied signals of the 2192 sampling points is a duplicate of the rearmost 144 sampling points;

when M is greater than 2192, the LAA site repeatedly sends the CRS or other occupied signals of 2192 sampling points on the unlicensed carrier from the time when the unlicensed carrier is occupied until the subframe boundary between the current subframe and the next subframe of the licensed carrier; or, when M is greater than 2192, the LAA station transmits the CRS or other occupancy signals of the first Mod (M, 2192) of the 2192 samples on the unlicensed carrier from the time of contention to the unlicensed carrier, and then repeatedly transmits the CRS or other occupancy signals of the 2192 samples until a subframe boundary where a current subframe and a next subframe of the licensed carrier intersect, where Mod (M, 2192) is used to indicate modulo 2192 for M.

Optional embodiment three:

when M is less than or equal to 2048, the LAA site starts to transmit a cell-specific reference signal CRS or other occupied signals of 2048+ K sampling points on the unlicensed carrier from the time of contention to the channel, where K is a non-negative integer not exceeding 160; or the like, or, alternatively,

when M is less than or equal to 2048 and when the LAA station transmits a cell-specific reference signal CRS of 2048+ K samples or other the occupancy signal on the unlicensed carrier, the first 2048+ K-M samples of the next subframe of the current subframe of the unlicensed carrier will be punctured.

In addition, an optional implementation manner of this embodiment also relates to a manner in which the LAA station transmits the CRS, and this manner may be implemented first by: the LAA site transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB), wherein the CRS is used for indicating different cell information of the LAA site on different REs. Wherein the cell information includes: antenna port information, time length information of the LAA site occupying the unauthorized carrier, and cell identification number information of the unauthorized carrier.

The one PRB in this embodiment includes 12 REs in one time domain symbol, where the REs are numbered as RE0, RE1, RE2, RE3, RE4, RE5, RE6, RE7, RE8, RE9, RE10, and RE11 in order from low to high in frequency.

Based on the above manner in which the REs are numbered in the order from low to high in frequency, and the LAA station transmits the CRS on different resource elements REs of one physical resource block PRB, in an optional implementation manner of this embodiment, the following manner may be implemented:

the first optional implementation mode: when the LAA station transmits the CRS with 1 antenna port, the LAA station transmits the CRS over RE0, RE4, RE8, wherein the result of taking the modulo of 12 from the Cell identification number Cell _ ID of the unlicensed carrier transmitted by the CRS over different REs is equal to the number of the RE when transmitted over different REs.

Optional embodiment two:

when the LAA station transmits the CRS with 2 antenna ports, the LAA station transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE1, RE5, RE 9.

Optional embodiment three:

when the LAA station transmits the CRS with 2 antenna ports, the LAA station transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE2, RE6, RE 10.

And the result of taking the module of 6 for the Cell identification number Cell _ ID of the unlicensed carrier transmitted by the CRS on different REs is equal to the number of the RE when the CRS with a smaller port number is transmitted on different REs divided by 2, and the result of taking the module of 6 for the Cell identification number Cell _ ID is equal to the number of the RE when the CRS with a larger port number is transmitted on different REs minus one and then divided by 2.

Wherein, the number of the smaller port may be port 0 in the optional implementation manner of this embodiment; the port number with the larger port number may be port 1 in an alternative implementation of this embodiment.

Optional implementation mode four:

when the LAA station transmits the CRS with 4 antenna ports, the LAA station transmits the CRS of the 1 st port on RE0, RE4, RE8, transmits the CRS of the 2 nd port on RE1, RE5, RE9, transmits the CRS of the 3 rd port on RE2, RE6, RE10, and transmits the CRS of the 4 th port on RE3, RE7, RE 11.

Optional embodiment five:

when the LAA station transmits the CRS with 4 antenna ports, the LAA station transmits the CRS of the 1 st port on RE0, RE4, RE8, transmits the CRS of the 2 nd port on RE2, RE6, RE10, transmits the CRS of the 3 rd port on RE1, RE5, RE9, and transmits the CRS of the 4 th port on RE3, RE7, RE 11.

In addition, the time length information is expressed by one of the following methods:

the first method is as follows: using CRS of different sequences or other occupying signals to represent different time length information of occupying the unlicensed carrier;

the second method comprises the following steps: using CRS of different pseudo random sequence or other occupying signals to express different time length information of occupying the non-authorized carrier;

the third method comprises the following steps: the occupancy signals for different Zadoff-Chu sequences are used to indicate different time length information for occupying the unlicensed carrier.

The sending of the occupied signal and/or channel to the first LAA site and/or the first LAA user equipment UE around the LAA site by the licensed carrier assisted access LAA site related in this embodiment through the unlicensed carrier and/or the licensed carrier may also be implemented as follows:

the LAA site sends a Physical Downlink Control Channel (PDCCH) and/or an Enhanced Physical Downlink Control Channel (EPDCCH) on the authorized carrier; and/or the LAA site sends a Physical Downlink Control Channel (PDCCH) and/or an Enhanced Physical Downlink Control Channel (EPDCCH) on the unlicensed carrier; wherein the PDCCH and the EPDCCH are used to indicate occupancy information and/or scheduling information for one or more unlicensed carriers, wherein the occupancy information includes: occupancy time starting point information and the occupancy time length information.

Optionally, the occupation time starting point information includes: symbol starting point information and sampling point starting point information of a first symbol of a current subframe;

the symbol start point information is the several symbols relative to the authorized carrier at the time when the LAA site occupies the unlicensed carrier, wherein the symbol start point information is represented by 4 bits; the sampling point start point information of the first symbol is a few sampling points relative to the current symbol where the authorized carrier is located at the moment when the LAA station competes for the unauthorized carrier, wherein the sampling point start point information of the first symbol is represented by 12 bits.

Optionally, the information about the start of the sampling point of the first symbol includes one of:

the starting point information of the sampling point of the first symbol is represented by 7 bits, wherein the measurement unit of the starting point information of the sampling point is 32 sampling points; or the like, or, alternatively,

the sampling point starting point information of the first symbol is represented by 8 bits, wherein the measurement unit of the sampling point starting point information is 16 sampling points; or the like, or, alternatively,

the starting point information of the sampling point of the first symbol is represented by 9 bits, wherein the measurement unit of the starting point information of the sampling point is 8 sampling points; or the like, or, alternatively,

the sampling point starting point information of the first symbol is represented by 10 bits, wherein the measurement unit of the sampling point starting point information is 4 sampling points; or the like, or, alternatively,

the sampling point starting point information of the first symbol is represented by 11 bits, wherein the unit of measurement of the sampling point starting point information is 2 sampling points.

Optionally, the occupied time length information is represented by 2 bits, where "00", "01", "10", "11" indicated by the 2 bits sequentially represent subframes occupying 1,2,3, 4 one millisecond, respectively; or the like, or, alternatively,

the occupied time length information is represented by 2 bits, wherein "00", "01", "10" and "11" indicated by the 2 bits sequentially represent subframes occupying 1,2, 4 and 10 one millisecond respectively; or the like, or, alternatively,

the occupied time length information is represented by 3 bits, wherein "000", "001", "010", "011", "100", "101", "110", "111" indicated by the 3 bits sequentially represents sub-frames occupying 1,2,3, 4 one millisecond respectively; or the like, or, alternatively,

the occupied time length information is represented by 3 bits, wherein "000", "001", "010", "011", "100", "101", "110", "111" indicated by the 3 bits sequentially represents sub-frames occupying 1,2,3, 4, 5, 6, 8, 10 one millisecond respectively; or the like, or, alternatively,

the occupied time length information is represented by 4 bits, wherein "0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110" and "1111" indicated by the 4 bits sequentially represent subframes occupying 1,2,3, 4, 5, 6, 7, 8, 9, 10, one millisecond, respectively.

In addition, in this embodiment, the LAA site may also be implemented in a manner that the LAA site transmits a channel to the first LAA site and/or the first LAA user equipment UE through an authorized carrier, as follows:

when the authorized carrier is Time Division Duplex (TDD) and the LAA site competes for the unlicensed carrier at a Time point that is an uplink subframe of TDD, or an uplink Pilot timeslot UpPTS of a TDD special subframe, or a guard interval GP of a TDD special subframe, or a Downlink Pilot timeslot (DwPTS) of a TDD special subframe with respect to the authorized carrier, the LAA site sends an enhanced Physical Downlink Control Channel (E-DCH Dedicated Physical Control Channel, EDPCCH for short) on the TDD uplink subframe of the authorized carrier, wherein the EPDCCH is used to indicate occupancy information and/or scheduling information of the LAA site for one or more unlicensed carriers; and/or the presence of a gas in the gas,

when the authorized carrier is a Time Division Duplex (TDD) and the LAA site competes for the unlicensed carrier relative to an uplink subframe, an uplink pilot time slot (UpPTS) of the TDD, or a guard interval (GP) of a TDD special subframe, or a downlink pilot time slot (DwPTS) of the TDD special subframe, the LAA site sends a Physical Downlink Control Channel (PDCCH), and/or an Enhanced Physical Downlink Control Channel (EPDCCH), and/or an occupation signal on the downlink pilot time slot (DwPTS) of the TDD special subframe of the authorized carrier, wherein the PDCCH, the EPDCCH, and the occupation signal are used for indicating occupation information and/or scheduling information of the LAA site on one or more unlicensed carriers.

Optionally, when the second LAA user equipment has no physical uplink shared channel PUSCH transmission, no physical uplink control channel PUCCH transmission, no physical random access channel PRACH transmission, and no sounding reference signal SRS transmission on the TDD uplink subframe of the licensed carrier, the LAA site transmits the EPDCCH to the second LAA user equipment UE on the TDD uplink subframe of the licensed carrier; or the like, or, alternatively,

when the second LAA user equipment has a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH or a physical random access channel PRACH or a sounding reference signal SRS on the uplink subframe of the TDD of the authorized carrier, the LAA site receives or does not receive the EPDCCH transmitted by the LAA site on the uplink subframe of the TDD of the authorized carrier to the second LAA user equipment UE;

the LAA site performs puncturing on a last symbol of the enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the licensed carrier, where the puncturing is used to indicate that no resource element RE on the symbol is transmitted and set the power to zero;

the LAA site performs rate matching on resource elements RE of the enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the licensed carrier except for the last symbol.

Optionally, in this embodiment, the LAA site may send a channel to the first LAA site and/or the first LAA user equipment UE through an authorized carrier, and may also be implemented in the following manner:

step S11: when the authorized carrier is Time Division Duplex (TDD) and the LAA site competes for the time of the unauthorized carrier relative to the uplink pilot time slot (UpPTS) of the uplink subframe or the TDD special subframe of the authorized carrier or the guard interval (GP) of the TDD special subframe or the downlink pilot time slot (DwPTS) of the TDD special subframe of the authorized carrier, the LAA site sends the PDCCH and/or the EPDCCH on the next downlink subframe after the uplink subframe of the TDD of the authorized carrier is finished, wherein the PDCCH and/or the EPDCCH are used for indicating scheduling information of the LAA site on one or more unauthorized carriers.

Step S12: when the authorized carrier is TDD, the second LAA UE starts receiving and buffering data of the unlicensed carrier at the start time of the guard interval GP of the TDD special subframe of the authorized carrier, or the start time of the uplink pilot timeslot UpPTS of the TDD special subframe, or the start time of the downlink pilot timeslot DwPTS of the TDD special subframe, or the start time of the uplink subframe of the TDD special subframe.

Step S13: when the licensed carrier is TDD, the LAA site sends the PDCCH and/or the EPDCCH to the second LAA UE on the licensed carrier, wherein the second LAA UE decodes the PDCCH and/or the EPDCCH to obtain the scheduling information, wherein the scheduling information is used to instruct decoding of the buffered data of the unlicensed carrier, and the second LAA UE obtains different cell information, and/or the occupation information, and/or the scheduling information according to the received occupation signal, and/or the PDCCH, and/or the EPDCCH.

Step S14: the LAA site receives an occupied signal and/or a channel sent by the second LAA user equipment UE on the unlicensed carrier according to the different cell information, and/or the occupied information, and/or the scheduling information; and/or a random access preamble and/or a Sounding Reference Signal (SRS) transmitted on the unlicensed carrier; and/or, the LAA site receiving the second LAA user equipment UE transmitting an occupied signal and/or channel on the authorized carrier according to the different cell information, and/or the occupation information, and/or the scheduling information; and/or transmitting a random access preamble and/or a Sounding Reference Signal (SRS) on the licensed carrier.

Step S15: the first LAA site and/or the first LAA user equipment UE acquiring the different cell information, and/or the occupancy information, and/or the scheduling information according to the occupancy signal, and/or the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS received on the unlicensed carrier; and/or the first LAA site and/or the first LAA user equipment UE acquire the different cell information, and/or the occupancy information, and/or the scheduling information according to the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS received on the licensed carrier.

In this embodiment, a device for occupying a channel is further provided, and the device is used to implement the foregoing embodiment and optional embodiments, and the description of the device that has been already made is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 5 is a block diagram of an apparatus for channel occupation according to an embodiment of the present invention, located on a site side of an licensed assisted access LAA, as shown in fig. 5, the apparatus includes: a sending module, configured to send an occupation signal and/or a channel to a first LAA site and/or a first LAA user equipment UE around the LAA site through an unlicensed carrier and/or a licensed carrier, where the occupation signal and/or the channel are used to indicate that the LAA site contends for the unlicensed carrier and occupation information that the LAA site occupies the unlicensed carrier.

Optionally, the sending module is configured to send the occupied signal and/or channel to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier, and/or send the channel to the first LAA site and/or the first LAA user equipment UE on the licensed carrier; and/or for transmitting the occupancy signal and/or channel to a second LAA user equipment UE on the unlicensed carrier and/or for transmitting the channel to the second LAA user equipment UE on the licensed carrier; and sending the occupied signal and/or channel to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier via the second LAA user equipment UE and/or sending the channel to the first LAA site and/or the first LAA user equipment UE on the licensed carrier.

Optionally, the occupancy signal comprises at least one of: cell-specific reference signals CRS, primary synchronization signals PSS, secondary synchronization signals SSS, channel state information reference signals CSI-RS, positioning reference signals PRS, sounding reference signals SRS, random access preambles.

Based on the combination of the occupied signals, the sending module may be further configured to send the PSS on the central 6 physical resource blocks PRB of the unlicensed carrier and send the CRS on other PRBs of the unlicensed carrier when the occupied signal is composed of the CRS and the PSS; or the like, or, alternatively,

repeatedly transmitting the PSS to the first LAA site and/or the first LAA user equipment UE in 6 consecutive or discontinuous PRBs in the unlicensed carrier; or the like, or, alternatively,

when the occupied signal consists of the CRS and the SSS, transmitting the SSS to the first LAA site and/or the first LAA user equipment UE on the central 6 PRBs of the unlicensed carrier, and transmitting the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier, wherein the other PRBs are PRBs left except the central 6 PRBs of the unlicensed carrier; or the like, or, alternatively,

repeatedly transmitting the SSS to the first LAA site and/or the first LAA user equipment UE in the unlicensed carrier in 6 consecutive or non-consecutive PRBs; or the like, or, alternatively,

when the occupied signal consists of the CRS, the PSS and the SSS, transmitting the PSS and the SSS to the first LAA site and/or the first LAA user equipment UE on the central 12 PRBs of the unlicensed carrier, and transmitting the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier, wherein the PSS and the SSS each occupy 6 consecutive PRBs of the 12 PRBs, and the other PRBs are PRBs remaining except the central 12 PRBs of the unlicensed carrier;

wherein, the PSS and the SSS occupy 6 consecutive PRBs of the 12 PRBs each in a manner including one of: the PSS is preempting 6 consecutive PRBs, or the SSS is preempting 6 consecutive PRBs.

The duration of the occupied signal related to this embodiment may be less than, equal to, or greater than the duration of a specific symbol, where the duration of the specific symbol is 2208 samples or 2192 samples, and the duration of the one sample is 1/(2048 × 15000) seconds.

In yet another alternative embodiment of this alternative embodiment, the apparatus includes: and the marking module is used for marking M sampling points when the time from the moment of competing to the unauthorized carrier to the subframe boundary of the current subframe and the next subframe of the authorized carrier is the next subframe boundary, wherein M is a nonnegative integer.

In this embodiment the apparatus comprises: the first copying module is used for copying the contents of the 2048-M +1 to 2048 th sampling points of the next symbol of the current symbol of the unauthorized carrier when M is less than or equal to 2048; the sending module is further configured to send the copied contents of M sampling points on the unlicensed carrier from a time when the unlicensed carrier is contended to; or the like, or, alternatively,

the second copying module is used for copying the contents of the 1 st to M-th sampling points of the next symbol of the current symbol of the unauthorized carrier when M is more than 2048 but less than or equal to 2192; the sending module is configured to send the copied contents of M sampling points on the unlicensed carrier from a time when the unlicensed carrier is contended to; or the like, or, alternatively,

a third copying module, configured to copy contents of 2192 sample points of the 1 st to 2192 nd symbols of the next unauthorized carrier when M is greater than 2192; the sending module is configured to repeatedly send the contents of the copied 2192 sample points on the unlicensed carrier from a time point of contention to the unlicensed carrier until a next subframe boundary of the licensed carrier.

In this embodiment, the apparatus further comprises: a fourth copying module, configured to send, by the sending module, the CRS or other occupancy signals of the first M sampling points of the 2048 sampling points on the unlicensed carrier from a time when M is less than or equal to 2048 and a contention to the unlicensed carrier; or the like, or, alternatively,

a fifth copying module, configured to send the CRS or other occupied signals of the top M of the 2192 sampling points on the unlicensed carrier through the sending module from a time when the unlicensed carrier is occupied when M is greater than 2048 but less than or equal to 2192, where the content of the top 144 sampling points in the CRS or other occupied signals of the 2192 sampling points is a copy of the last 144 sampling points; or the like, or, alternatively,

a sixth replication module, configured to, when M is greater than 2192, repeat, by the LAA station, on the unlicensed carrier, sending the CRS of 2192 sampling points or other occupied signals through the sending module from a time when the unlicensed carrier is occupied, until a subframe boundary between a current subframe and a next subframe of the licensed carrier; or, the sixth replication module is configured to, when M is greater than 2192, transmit the CRS or other occupancy signals of the first Mod (M, 2192) sampling points of the 2192 sampling points on the unlicensed carrier through the transmitting module from a time point of contention to the unlicensed carrier by the LAA station, and then repeat transmitting the CRS or other occupancy signals of the 2192 sampling points until a subframe boundary where a current subframe and a next subframe of the licensed carrier intersect, where Mod (M, 2192) is used to indicate modulo 2192 of M.

In an optional implementation manner of this embodiment, the sending module may be further configured to, when M is less than or equal to 2048, start sending cell-specific reference signals CRS of 2048+ K sampling points or other occupied signals on the unlicensed carrier from a time of contention to a channel, where K is a non-negative integer not exceeding 160; or the like, or, alternatively,

Optionally, the manner for the LAA station to transmit the CRS includes: transmitting the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB), wherein the CRS is used for indicating different cell information of the LAA site on different REs, and the cell information comprises: antenna port information, time length information of the LAA site occupying the unauthorized carrier, and cell identification number information of the unauthorized carrier.

In this embodiment, the one PRB includes 12 REs in one time domain symbol, where the REs are numbered as RE0, RE1, RE2 through RE11 in order from low to high in frequency.

Based on the above mentioned serial numbers of the REs in the order from low to high in frequency, the method for transmitting the CRS on different resource elements REs of one physical resource block PRB includes: the method can be realized by the following steps:

the first method is as follows: when the LAA site transmits the CRS with 1 antenna port, the transmitting module transmits the CRS over RE0, RE4, and RE8, wherein a result of taking a modulo of 12 from the Cell identification number Cell _ ID of the unlicensed carrier transmitted by the CRS over different REs is equal to the number of the RE when the CRS is transmitted over different REs.

The second method comprises the following steps: when the LAA site transmits the CRS with 2 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE1, RE5, RE 9.

The third method comprises the following steps: when the LAA site transmits the CRS with 2 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE2, RE6, RE 10.

The method is as follows: when the LAA site transmits the CRS with 4 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, and RE8, transmits the CRS of the 2 nd port on RE1, RE5, and RE9, transmits the CRS of the 3 rd port on RE2, RE6, and RE10, and transmits the CRS of the 4 th port on RE3, RE7, and RE 11.

The fifth mode is as follows: when the LAA site transmits the CRS with 4 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, and RE8, transmits the CRS of the 2 nd port on RE2, RE6, and RE10, transmits the CRS of the 3 rd port on RE1, RE5, and RE9, and transmits the CRS of the 4 th port on RE3, RE7, and RE 11.

Optionally, the time length information is expressed by one of the following ways:

using CRS of different sequences or other occupying signals to represent different time length information of occupying the unlicensed carrier;

using CRS of different pseudo random sequence or other occupying signals to express different time length information of occupying the non-authorized carrier;

the occupancy signals for different Zadoff-Chu sequences are used to indicate different time length information for occupying the unlicensed carrier.

In an optional implementation manner of this embodiment, the sending module is further configured to send a physical downlink control channel PDCCH and/or an enhanced physical downlink control channel EPDCCH on the licensed carrier; and/or, transmitting a Physical Downlink Control Channel (PDCCH) and/or an Enhanced Physical Downlink Control Channel (EPDCCH) on the unlicensed carrier; wherein the PDCCH and the EPDCCH are used to indicate occupancy information and/or scheduling information for one or more unlicensed carriers, wherein the occupancy information includes: occupancy time starting point information and the occupancy time length information.

Optionally, the occupation time starting point information includes: symbol starting point information and sampling point starting point information of a first symbol of a current subframe; wherein, the symbol start point information is the several symbols relative to the authorized carrier at the time when the LAA site occupies the unlicensed carrier, wherein the symbol start point information is represented by 4 bits; the sampling point start point information of the first symbol is a few sampling points relative to the current symbol where the authorized carrier is located at the moment when the LAA station competes for the unauthorized carrier, wherein the sampling point start point information of the first symbol is represented by 12 bits.

In an optional implementation manner of this embodiment, the sending module is further configured to send an enhanced physical downlink control channel EPDCCH on a TDD uplink subframe of the licensed carrier when the licensed carrier is TDD and the LAA site competes for the unlicensed carrier relative to an uplink subframe of the licensed carrier, or an uplink pilot timeslot UpPTS of a TDD special subframe, or a guard interval GP of the TDD special subframe, or a downlink pilot timeslot DwPTS of the TDD special subframe, where the EPDCCH is used to indicate occupancy information and/or scheduling information of the LAA site on one or more unlicensed carriers. Or the like, or, alternatively,

the sending module is configured to send a physical downlink control channel PDCCH, and/or an enhanced physical downlink control channel EPDCCH, and/or an occupation signal on a downlink pilot time slot DwPTS of a TDD special subframe of the licensed carrier when the licensed carrier is TDD and the LAA site competes for the unlicensed carrier relative to the uplink pilot time slot UpPTS of the licensed carrier, or a guard interval GP of the TDD special subframe, or the downlink pilot time slot DwPTS of the TDD special subframe of the licensed carrier, where the PDCCH, the EPDCCH, and the occupation signal are used to indicate occupation information and/or scheduling information of the LAA site on one or more unlicensed carriers.

Optionally, the sending module is configured to send, to the second LAA user equipment UE, the EPDCCH on the uplink subframe of the TDD of the authorized carrier when the second LAA user equipment has no transmission of a physical uplink shared channel PUSCH, no transmission of a physical uplink control channel PUCCH, no transmission of a physical random access channel PRACH, and no transmission of a sounding reference signal SRS on the uplink subframe of the TDD of the authorized carrier; or, when the second LAA user equipment has a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH or a physical random access channel PRACH or a sounding reference signal SRS on the TDD uplink subframe of the licensed carrier, receiving or not receiving the EPDCCH sent by the LAA site on the TDD uplink subframe of the licensed carrier to the second LAA user equipment UE;

in this embodiment, the apparatus further comprises: a puncturing module, configured to puncture a last symbol of the enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the licensed carrier, where the puncturing is used to indicate that no resource element RE on the symbol is sent, and set a power to zero;

a matching module, configured to perform rate matching on resource elements RE, except for a last symbol, of the enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the authorized carrier.

Optionally, the sending module is configured to send the PDCCH and/or the EPDCCH on a next downlink subframe after an uplink subframe of the TDD of the licensed carrier ends when the licensed carrier is TDD and a time at which the LAA site competes for the unlicensed carrier is relative to an uplink pilot timeslot UpPTS of an uplink subframe or a TDD special subframe of the TDD or a guard interval GP of the TDD special subframe or a downlink pilot timeslot DwPTS of the TDD special subframe of the licensed carrier, where the PDCCH and/or the EPDCCH are used to indicate scheduling information of the LAA site for one or more unlicensed carriers.

Optionally, when the authorized carrier is TDD, the second LAA UE starts to receive and buffer data of the unlicensed carrier at a guard interval GP start time of a TDD special subframe of the authorized carrier, or an uplink pilot timeslot UpPTS start time of the TDD special subframe, or a downlink pilot timeslot DwPTS start time of the TDD special subframe, or an uplink subframe start time of the TDD special subframe.

Optionally, the sending module is configured to send the PDCCH and/or the EPDCCH to the second LAA user equipment UE on the licensed carrier when the licensed carrier is TDD, where the second LAA user equipment UE decodes the PDCCH and/or the EPDCCH to obtain the scheduling information, where the scheduling information is used to instruct to decode the buffered data of the unlicensed carrier, and the second LAA user equipment UE obtains different cell information, and/or the occupancy information, and/or the scheduling information according to the received occupancy signal, and/or the PDCCH, and/or the EPDCCH.

The apparatus in this embodiment may further include: a receiving module, configured to receive an occupied signal and/or a channel sent by the second LAA UE on the unlicensed carrier according to the different cell information, and/or the occupied information, and/or the scheduling information; and/or a random access preamble and/or a Sounding Reference Signal (SRS) transmitted on the unlicensed carrier; and/or receiving an occupation signal and/or a channel sent by the second LAA user equipment UE on the authorized carrier according to the different cell information, and/or the occupation information, and/or the scheduling information; and/or transmitting a random access preamble and/or a Sounding Reference Signal (SRS) on the licensed carrier.

In this embodiment, the sending module is further configured to camp on a non-licensed carrier a signal, and/or a PDCCH, and/or an EPDCCH, and/or a random access preamble, and/or an SRS to the first LAA site and/or the first LAA user equipment UE, where the camp signal, and/or the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS are used to instruct the first LAA site and/or the first LAA user equipment UE to acquire different cell information, and/or camping information, and/or scheduling information; and/or the transmitting module is further configured to transmit the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS to the first LAA site and/or the first LAA user equipment UE on the licensed carrier, where the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS are used to instruct the first LAA site and/or the first LAA user equipment UE to acquire different cell information, and/or occupancy information, and/or scheduling information.

It should be noted that, for the second LAA user equipment UE and the first LAA user equipment UE in the method embodiment and the apparatus embodiment of the present invention, on the premise that no contradiction occurs, the second LAA user equipment UE and the first LAA user equipment UE may be the same physical equipment; the LAA site and the first LAA site may be the same physical device, but the above-mentioned manner is only an optional implementation manner in this embodiment, and does not constitute a limitation to the present invention, and other cases are within the protection scope of the present invention.

The following description and alternative embodiments of the present invention are given by way of example in conjunction with the accompanying drawings;

the first alternative embodiment:

the description will be given by taking an example that the time from the next subframe boundary of the authorized carrier when the LAA station successfully competes for the channel (i.e. the unlicensed carrier) is M1024 sampling points, the occupied signal is a cell-specific reference signal CRS with a single port, and the LAA station transmits a physical downlink control channel PDCCH on the authorized carrier to indicate 3 ms occupied information for one unlicensed carrier. Fig. 6 is a schematic diagram of transmitting an occupied signal on an LAA station after contending for an unlicensed carrier according to an alternative embodiment of the present invention, and fig. 7 is a schematic diagram of distributing a CRS with a single port occupied signal on one PRB according to the alternative embodiment of the present invention.

As shown in fig. 3, after the LAA site LAA-eNB1 successfully contends for the channel, LAA-eNB1 immediately transmits a single-port cell-specific reference signal CRS0 (fig. 7) of M1024 sampling points (fig. 6) on the unlicensed carrier.

Since the site LAA-eNB1 has energy on the unlicensed carrier (i.e., transmitted CRS 0; as shown in fig. 7), the surrounding sites LAA-eNB 2 may be able to sense the presence of the energy after receiving the single-port cell-specific reference signal CRS0, and thus sense that another site has occupied the unlicensed carrier and cannot occupy the unlicensed carrier any more.

The site LAA-eNB1 transmits the physical downlink control channel PDCCH in the next subframe (consisting of 14 symbols in total from symbols 0 to 13, as shown in fig. 4). The PDCCH may carry 2 bits of occupancy information (here, "10"), symbol start point information (here, "symbol 13"; 14 th symbol), and sample point start point information of the first symbol (here, "M ═ 1024 samples").

Therefore, the site LAA-eNB1 transmits the occupied signal (CRS 0; as shown in fig. 7) to effectively prevent the unauthorized carrier from being robbed. Surrounding LAA UEs receiving the PDCCH can know the occupation information, thereby solving the occupation time problem. The surrounding LAA UEs forward the received occupancy information to the site serving themselves, thereby solving the problem of 'hidden site'.

An alternative embodiment two:

the following description is given by taking an example that the time when an LAA station successfully competes for a channel (unlicensed carrier) is from the next subframe boundary of the licensed carrier, is M equal to 2000 sampling points, an occupied signal is a primary synchronization signal PSS, and the occupied signal (PSS here) uses different sequences to indicate 2ms occupied information for one unlicensed carrier. With reference to fig. 3, fig. 6, fig. 8 and fig. 9, wherein fig. 8 is a schematic diagram of a distribution of an occupied signal PSS according to an alternative embodiment of the present invention over the entire system bandwidth, and fig. 9 is a schematic diagram of a distribution of an occupied signal PSS according to an alternative embodiment of the present invention over the entire system bandwidth.

As shown in fig. 3, after the LAA site LAA-eNB1 successfully contends for the channel (unlicensed carrier), the LAA-eNB1 immediately transmits a primary synchronization signal PSS (fig. 8 and 9) of M + K2000 +192 2192 samples (fig. 6) on the unlicensed carrier, where K192.

Since the occupied signal (primary synchronization signal PSS) to be transmitted crosses the subframe boundary (also symbol boundary), LAA-eNB1 needs to puncture the front-most (or rear-most) K of the first symbol of the next subframe (192 samples). That is, the first symbol of the next subframe actually transmits 2208-K2016 samples.

Since the site LAA-eNB1 has energy on the unlicensed carrier (i.e., PSS is transmitted; as in fig. 8 and as in fig. 9), the surrounding sites LAA-eNB 2 (as in fig. 3) may be able to sense the presence of this energy and thus be able to sense that another site has already occupied the unlicensed carrier and is no longer able to occupy the unlicensed carrier.

In fig. 8 and fig. 9, there are 15 or 16 PSS, if these 15 (or 16) PSS all transmit the same sequence, it can be defined that the LAA site takes 2 ms; if 7 (or 8) PSS at 2 sides of the center subcarrier each transmit 2 different sequences, it can be defined that the LAA site takes 4 ms. In this embodiment, 15 (or 16) PSS transmitted by LAA-eNB1 all transmit the same sequence.

Therefore, the site LAA-eNB1 transmits the occupied signal (PSS; as shown in figure 8 and figure 9) to effectively prevent the unauthorized carrier from being robbed. The surrounding LAA UEs can know the occupation information (taking 2ms time) by receiving the PSS, so that the occupation duration problem can be solved. The surrounding LAA UEs forward the received occupancy information to the site serving themselves, thereby solving the problem of 'hidden site'.

An alternative embodiment is as follows:

the following description will be given by taking an example that the time from the next subframe boundary of the licensed carrier when the LAA station successfully competes for the channel (unlicensed carrier) is M2192 sampling points, the cell-specific reference signal CRS with a dual-port occupancy signal plus the primary synchronization signal PSS plus the secondary synchronization signal SSS, and the occupancy signal (here, CRS + PSS + SSS) uses different PSS sequences to indicate 2ms occupancy information for one unlicensed carrier. Fig. 3, fig. 6, fig. 10, and fig. 11 are combined for explanation, where fig. 10 is a schematic diagram of distribution of PSS + SSS + CRS over the entire system bandwidth according to an alternative embodiment of the present invention, and fig. 11 is a schematic diagram of distribution of CRS over one PRB with dual port occupancy signals according to an alternative embodiment of the present invention.

As shown in fig. 3, after the LAA site LAA-eNB1 successfully contends for the channel (unlicensed carrier), LAA-eNB1 immediately transmits an occupied signal CRS + PSS + SSS (fig. 10 and 11) of M2192 samples (fig. 6) on the unlicensed carrier.

Due to the energy present on the unlicensed carrier by the site LAA-eNB1 (i.e., transmitted CRS + PSS + SSS; as in fig. 10 and 11), the surrounding sites LAA-eNB 2 may be able to sense the presence of this energy and thus be able to sense that another site has already occupied the unlicensed carrier and is no longer able to occupy the unlicensed carrier.

In fig. 10, there is a PSS, and if the PSS is specified to transmit a Zadoff-Chu sequence of u ═ 29, it can be defined that the LAA site takes 2 ms; if PSS is specified to transmit Zadoff-Chu sequence with u being 34, it can be defined that the LAA station takes 4 ms. In this embodiment, LAA-eNB1 transmits a Zadoff-Chu sequence of u-29 to PSS.

Therefore, the site LAA-eNB1 transmits the occupied signal (CRS + PSS + SSS; as shown in fig. 10 and 11) to effectively prevent the unauthorized carrier from being robbed. The surrounding LAA UEs can know the occupation information (taking 2ms time) by receiving the PSS, so that the occupation duration problem can be solved. The surrounding LAA UEs forward the received occupancy information to the site serving themselves, thereby solving the problem of 'hidden site'.

An alternative embodiment is four:

the description will be given by taking an example that the duplex mode in which the LAA site works on the authorized carrier is time division duplex TDD, and the time when the LAA site successfully competes for the unlicensed carrier is the second symbol of the downlink pilot time slot DwPTS in which the authorized carrier is a TDD special subframe, and the LAA site transmits an enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the authorized carrier to indicate occupation information and/or scheduling information of one or more unlicensed carriers. Fig. 3, fig. 12 and fig. 13 are combined to describe in detail, where fig. 12 is a schematic diagram of contention for an unlicensed carrier in a TDD duplex manner at a middle time of a special subframe S for an LAA site according to an alternative embodiment of the present invention, and fig. 13 is another schematic diagram of distribution of CRSs on a PRB, where an occupied signal is dual-ported.

As shown in fig. 3, after the LAA site LAA-eNB1 successfully contends for the channel (unlicensed carrier), the LAA-eNB1 repeatedly transmits a dual-port cell-specific reference signal CRS (as in fig. 13) of 2192 sampling points on the unlicensed carrier immediately until the uplink subframe boundary of the TDD of the licensed carrier.

On an uplink subframe (U) of TDD of a licensed carrier, the LAA-eNB1 configures a number of PRBs in advance for transmitting an enhanced physical downlink control channel, EPDCCH, to indicate occupancy information and/or scheduling information for one or more unlicensed carriers. LAA UEs that are not scheduled on the uplink subframe (U) of the TDD of the licensed carrier need to receive the EPDCCH.

Due to the energy (i.e. CRS transmitted; fig. 13) present on the unlicensed carrier by the site LAA-eNB1, the surrounding sites LAA-eNB 2 may be able to sense the presence of this energy and thus be able to sense that another site has already occupied the unlicensed carrier and is therefore no longer able to occupy the unlicensed carrier.

Then, the site LAA-eNB1 transmits the enhanced physical downlink control channel EPDCCH on the next uplink subframe U (consisting of 14 symbols in total from 0 to 13; see fig. 12). The EPDCCH may carry 2 bits of occupancy information (here, "10"), symbol start information (here, "second symbol of S subframe"; 14 th symbol), and sample point start information of the first symbol. The site LAA-eNB1 may also transmit another EPDCCH or EPDCCHs in the next uplink subframe U to schedule LAA UEs.

Therefore, the site LAA-eNB1 can effectively prevent the problem that the unlicensed carrier can be snatched by transmitting the occupied signal (CRS; as shown in fig. 13). Surrounding LAA UEs receiving one or more EPDCCHs can know occupancy information and/or scheduling information, and thus can solve the occupancy duration problem. The surrounding LAA UEs forward the received occupancy information to the site serving themselves, thereby solving the problem of 'hidden site'.

An alternative embodiment five:

the description will be given by taking an example that the duplex mode in which the LAA site works on the authorized carrier is time division duplex TDD, and the time when the LAA site successfully competes for the unlicensed carrier is the first symbol of the uplink pilot timeslot UpPTS of the TDD special subframe with respect to the authorized carrier, and the LAA site transmits an enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the authorized carrier to indicate occupation information and/or scheduling information of one or more unlicensed carriers. Fig. 3, fig. 12 and fig. 14 are combined to describe in detail, where fig. 14 is a schematic diagram of distribution of an occupied signal, which is a random access Preamble, over the entire system bandwidth according to an alternative embodiment of the present invention.

As shown in fig. 3, after the LAA site LAA-eNB1 successfully competes for the channel (unlicensed carrier), the LAA-eNB1 immediately and repeatedly transmits the random access Preamble (as shown in fig. 14) of 2192 sampling points on the unlicensed carrier until the uplink subframe boundary of the TDD of the licensed carrier.

As shown in fig. 14, each random access Preamble occupies 6 physical resource blocks PRB. There are a total of 15 random access Preamble preambles including the random access Preamble at the center of the bandwidth. Each random access Preamble may use the same (or different) random access Preamble sequence. The combination of different random access preamble sequences may represent the occupancy time length information. For example, using the same random access preamble sequence indicates that it takes 4 milliseconds.

Due to the energy present on the unlicensed carrier by the site LAA-eNB1 (i.e. CRS transmitted; fig. 12), the surrounding sites LAA-eNB 2 may be able to perceive the presence of this energy and thus be able to perceive that another site has already occupied the unlicensed carrier and is therefore no longer able to occupy the unlicensed carrier.

Then, the site LAA-eNB1 transmits the enhanced physical downlink control channel EPDCCH on the next uplink subframe U (as in fig. 12). The EPDCCH may carry 2 bits of occupancy information (here, "10"), symbol start information (here, "second symbol of S subframe"; 14 th symbol), and sample point start information of the first symbol. The site LAA-eNB1 may also transmit another EPDCCH or EPDCCHs in the next uplink subframe U to schedule LAA UEs.

Therefore, the site LAA-eNB1 transmits the occupied signal (random access preamble; as in fig. 14) to effectively prevent the unauthorized carrier from being robbed. Surrounding LAA UEs receiving one or more EPDCCHs can know occupancy information and/or scheduling information, and thus can solve the occupancy duration problem. The surrounding LAA UEs forward the received occupancy information to the site serving themselves, thereby solving the problem of 'hidden site'.

In addition, the site LAA-eNB1 may also transmit the physical downlink control channel PDCCH and/or the enhanced physical downlink control channel EPDCCH on the special subframe S to inform the LAA UE that it is preparing to contend for the unlicensed carrier (not contending yet at this time), and request the LAA UE to be ready for reception.

Alternative embodiment six:

the description will be given by taking an example that the duplex mode in which the LAA site works on the authorized carrier is time division duplex TDD, and the time when the LAA site successfully competes for the unlicensed carrier is the 2 nd symbol of the uplink subframe of the TDD with respect to the authorized carrier, and the LAA site transmits a physical downlink control channel PDCCH and/or an enhanced physical downlink control channel EPDCCH on a downlink subframe immediately after the uplink subframe of the TDD with the authorized carrier ends to indicate occupation information and/or scheduling information for one or more unlicensed carriers. This is explained in detail with reference to fig. 2 and 3.

As shown in fig. 3, after the LAA site LAA-eNB1 successfully contends for the channel (unlicensed carrier), the LAA-eNB1 immediately transmits a physical downlink shared channel PDSCH to the LAA UE on the unlicensed carrier. When transmitting PDSCH, the ending time point needs to be aligned to the subframe boundary. And the physical downlink control channel PDCCH and/or the enhanced physical downlink control channel EPDCCH corresponding to the PDSCH are transmitted on a downlink subframe immediately after the uplink subframe of the TDD of the authorized carrier is finished.

Since the site LAA-eNB1 has energy on the unlicensed carrier (i.e. transmitted PDSCH; see fig. 2), the surrounding sites LAA-eNB 2 (fig. 3) may be able to sense the presence of this energy and thus be able to sense that another site has already occupied the unlicensed carrier and is no longer able to occupy the unlicensed carrier.

Then, the site LAA-eNB1 transmits a physical downlink control channel PDCCH and/or an enhanced physical downlink control channel EPDCCH on a downlink subframe D (as shown in fig. 2) immediately after the uplink subframe of the TDD of the licensed carrier ends. The PDCCH and/or EPDCCH may carry 2 bits of occupancy information (here, "10"), symbol start information (here, "second symbol of U subframe"), and sample point start information of the first symbol.

The site LAA-eNB1 transmit channel (PDSCH) can effectively prevent the problem that the unlicensed carrier can be snatched. Surrounding LAA UEs receiving one or more PDCCHs and/or EPDCCHs may know occupancy information and/or scheduling information, and thus may solve the occupancy duration problem. The surrounding LAA UEs forward the received occupancy information to the site serving themselves, thereby solving the problem of 'hidden site'.

Alternative embodiment seven:

the description will be given by taking an example that the duplex mode in which the LAA site works on the authorized carrier is time division duplex TDD, and the time when the LAA site successfully competes for the unlicensed carrier is the first symbol of the uplink pilot timeslot UpPTS of the TDD special subframe with respect to the authorized carrier, and the LAA site transmits an enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the authorized carrier to indicate occupation information and/or scheduling information of one or more unlicensed carriers. The detailed description is made with reference to fig. 3, 12 and 14.

As shown in fig. 3, after the LAA site LAA-eNB1 successfully competes to the channel (unlicensed carrier), the LAA-eNB1 immediately and repeatedly transmits the random access Preamble (as shown in fig. 14) of 2192 sampling points on the unlicensed carrier in a single carrier frequency division multiple access SC-FDMA manner until the uplink subframe boundary of the TDD of the licensed carrier.

As shown in fig. 14, each random access Preamble occupies 6 physical resource blocks PRB in a single carrier frequency division multiple access SC-FDMA manner. There are a total of 15 random access Preamble preambles including the random access Preamble at the center of the bandwidth. Each random access Preamble may use the same (or different) random access Preamble sequence. The combination of different random access preamble sequences may represent the occupancy time length information. For example, using the same random access preamble sequence indicates that it takes 4 milliseconds.

Due to the energy (i.e. CRS transmitted; fig. 14) present on the unlicensed carrier by the site LAA-eNB1, the surrounding sites LAA-eNB 2 may be able to sense the presence of this energy and thus be able to sense that another site has already occupied the unlicensed carrier and is therefore no longer able to occupy the unlicensed carrier.

The site LAA-eNB1 then transmits the enhanced physical downlink control channel EPDCCH on the next uplink subframe U (as in fig. 12). The EPDCCH may carry 2 bits of occupancy information (here, "10"), symbol start information (here, "second symbol of S subframe"; 14 th symbol), and sample point start information of the first symbol. The site LAA-eNB1 may also transmit another EPDCCH or EPDCCHs in the next uplink subframe U to schedule LAA UEs.

In addition, the site LAA-eNB1 may also designate one or more LAA UEs to transmit one or more random access Preamble preambles on the unlicensed carrier in a single carrier frequency division multiple access SC-FDMA manner, where each random access Preamble occupies 6 different physical resource blocks PRB.

Alternative embodiment eight:

the following description is given by taking an example that the duplex mode in which the LAA site operates on the authorized carrier is time division duplex TDD, and the time when the LAA site successfully competes for the unlicensed carrier is the second symbol of the downlink pilot time slot DwPTS of the TDD special subframe with respect to the authorized carrier, and the LAA site transmits an enhanced physical downlink control channel EPDCCH on the uplink subframe of the TDD of the authorized carrier to indicate occupation information and/or scheduling information for one or more unlicensed carriers, and the LAA site transmits an occupation signal (e.g., using PSS) on the authorized carrier on the 3 rd symbol of the downlink pilot time slot DwPTS of the TDD of the authorized carrier. The details will be described with reference to fig. 3, 12 and 13.

As shown in fig. 3, after the LAA site LAA-eNB1 successfully contends for the channel (unlicensed carrier), the LAA-eNB1 repeatedly transmits a dual-port cell-specific reference signal CRS (fig. 11) of 2192 sampling points on the unlicensed carrier immediately until the uplink subframe boundary of the TDD of the licensed carrier. In addition, the LAA site LAA-eNB1 transmits an occupied signal (e.g., with PSS) on the grant carrier on the 3 rd symbol of the downlink pilot time slot DwPTS of the TDD of the grant carrier.

In addition, since the LAA site LAA-eNB1 transmits an occupied signal (e.g. with PSS) on the 3 rd symbol of the downlink pilot timeslot DwPTS of the TDD of the licensed carrier, the surrounding LAA UEs can sense the presence of the occupied signal (e.g. PSS), and thus the LAA site LAA-eNB1 is considered to have obtained the right to use one or more unlicensed carriers. Surrounding LAA UEs may also report this information to the serving LAA site, thereby letting the surrounding LAA sites know that one or more unlicensed carriers have been used by the LAA site.

Then, the site LAA-eNB1 transmits an enhanced physical downlink control channel EPDCCH on the next uplink subframe U (consisting of 14 symbols in total from 0 to 13; see fig. 10). The EPDCCH may carry 2 bits of occupancy information (here, "10"), symbol start information (here, "second symbol of S subframe"; 14 th symbol), and sample point start information of the first symbol.

The site LAA-eNB1 may also transmit another EPDCCH or EPDCCHs in the next uplink subframe U to schedule LAA UEs.

Therefore, the site LAA-eNB1 transmits the occupied signal (CRS; fig. 11) to effectively prevent the unauthorized carrier from being robbed. Surrounding LAA UEs receiving one or more EPDCCHs can know occupancy information and/or scheduling information, and thus can solve the occupancy duration problem. The surrounding LAA UEs forward the received occupancy information to the site serving themselves, thereby solving the problem of 'hidden site'.

Alternative embodiment nine:

the following description is given by taking an example that the duplex mode in which the LAA site works on the authorized carrier is time division duplex TDD, and the time when the LAA site successfully competes for the unlicensed carrier is a first symbol of an uplink pilot timeslot UpPTS of a TDD special subframe with respect to the authorized carrier, and the LAA site transmits an enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the authorized carrier to indicate occupation information and/or scheduling information of one or more unlicensed carriers. The details will be described with reference to fig. 3, 12, and 14.

As shown in fig. 3, after the LAA site LAA-eNB1 successfully competes for the channel (unlicensed carrier), the LAA-eNB1 immediately and repeatedly transmits the random access Preamble (fig. 12) of 2192 sampling points on the unlicensed carrier until the uplink subframe boundary of the TDD of the licensed carrier.

In addition, the random access Preamble may be repeatedly transmitted in a unit of 5 MHz. For example, there are 4 random access Preamble preambles transmitted at 5MHz per 20MHz bandwidth. Each 5MHz has 3 random access Preamble preambles transmitted, and each random access Preamble occupies 6 continuous and different physical resource blocks PRB. There is one random access Preamble transmission on each 5MHz center.

The random access Preamble can be generated with the following pseudo random sequence (PN code).

Where D is the length of the pseudorandom sequence, e.g., D139 or D839.

Wherein, c (n) ═ x₁(n+N_C)+x₂(n+N_C))mod2

Wherein N is_C1600, n is 0,1,2,3, 1, F-1, F (2^ L) -1, L is the number of stages of the shift register that generated the sequence (e.g., L is 10).

Wherein the content of the first and second substances,

x₁(n+31)＝(x₁(n+3)+x₁(n)) mod2 and

x₂(n+31)＝(x₂(n+3)+x₂(n+2)+x₂(n+1)+x₂(n)) mod2 is a Gold sequence of length 31.

Wherein the first sequence (x1) uses x₁(0)＝1,x₁(n) ═ 0, n ═ 1, 2.., 30.

Wherein the 2 nd sequence (x2) is used

Or either c_init＝n_SITo initialize. Wherein, SI is information bits to be carried (e.g., occupation time length information), and k is the number of the information bits (e.g., occupation time length information of 4 bits); the cell identifier ID may be a new cell identifier ID (greater than 503), or may be an existing cell identifier ID (0-503).

Alternative embodiment ten:

the following description is given by taking an example that the time when an LAA station successfully competes for a channel (unlicensed carrier) is M2192 × 2 4384 sampling points from the next subframe boundary of the licensed carrier, a cell-specific reference signal CRS with a dual-port occupancy signal plus a primary synchronization signal PSS plus a secondary synchronization signal SSS, and an occupancy signal (here, CRS + PSS + SSS) uses different PSS sequences to indicate 2ms occupancy information for one unlicensed carrier. Fig. 3, fig. 6, fig. 11, and fig. 15 are combined for explanation, where fig. 15 is a second schematic diagram of distribution of occupied signals PSS + SSS + CRS over the entire system bandwidth according to an alternative embodiment of the present invention (the first 2192 sampling points are SSS + CRS; the last 2192 sampling points are PSS + CRS; and both PSS and SSS are on the central 6 PRBs of the entire bandwidth).

As shown in fig. 3, after the LAA site LAA-eNB1 successfully contends for the channel (unlicensed carrier), LAA-eNB1 immediately transmits an occupation signal CRS + PSS + SSS (fig. 11 and 15) of M2192 × 2 4384 samples (fig. 6) on the unlicensed carrier.

Due to the energy on the unlicensed carrier (i.e., transmitted CRS + PSS + SSS; fig. 11 and 15) of the site LAA-eNB1, the surrounding sites LAA-eNB 2 may be able to sense the presence of this energy and thus be able to sense that another site has already occupied the unlicensed carrier and is no longer able to occupy the unlicensed carrier.

In fig. 15, there is a PSS, and if the PSS is specified to transmit a Zadoff-Chu sequence of u ═ 29, it can be defined that the LAA site takes 2 ms; if PSS is specified to transmit Zadoff-Chu sequence with u being 34, it can be defined that the LAA station takes 4 ms. In this embodiment, LAA-eNB1 transmits a Zadoff-Chu sequence of u-29 to PSS.

Therefore, the site LAA-eNB1 transmits the occupied signal (CRS + PSS + SSS; as shown in fig. 11 and 15) to effectively prevent the unauthorized carrier from being robbed. The surrounding LAA UEs can know the occupation information (taking 2ms time) by receiving the PSS, so that the occupation duration problem can be solved. The surrounding LAA UEs forward the received occupancy information to the site serving themselves, thereby solving the problem of 'hidden site'.

The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for channel occupancy, comprising:

the method comprises the steps that an authorized carrier assisted access LAA site sends a channel to a first LAA site and/or first LAA User Equipment (UE) around the LAA site through an unauthorized carrier and/or an authorized carrier, and the first LAA site and/or the first LAA User Equipment (UE) receive the channel; wherein the channel is used for indicating that the LAA station contends for the unlicensed carrier and that the LAA station occupies occupancy information of the unlicensed carrier, wherein a duration of time for occupying the unlicensed carrier is less than, equal to, or greater than a duration of a specified symbol, wherein the duration of the specified symbol is 2208 samples or 2192 samples, and a duration of one sample is 1/(2048 × 15000) seconds;

when the LAA station competes for the unauthorized carrier, the time from the moment when the LAA station competes for the unauthorized carrier to a subframe boundary of a current subframe and a next subframe of the authorized carrier is marked as M sampling points, wherein M is a nonnegative integer;

when M is larger than 2192, copying the content of 2192 samples in the 1 st to 2nd symbols of the next symbol of the unlicensed carrier by the LAA site, and repeatedly transmitting the content of the copied 2192 samples from the moment of competing to the unlicensed carrier on the unlicensed carrier until the next subframe boundary of the licensed carrier.

2. The method of claim 1, wherein transmitting channels from a licensed carrier assisted access (LAA) site to a first LAA site and/or a first LAA User Equipment (UE) around the LAA site over an unlicensed carrier and/or a licensed carrier comprises:

the LAA site sends the channel to the first LAA site and/or the first LAA User Equipment (UE) on the unlicensed carrier, and/or sends the channel to the first LAA site and/or the first LAA User Equipment (UE) on the licensed carrier; and/or the presence of a gas in the gas,

the LAA site sends the channel to a second LAA User Equipment (UE) on the unlicensed carrier, and/or sends the channel to the second LAA User Equipment (UE) on the licensed carrier; and sending the channel to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier by the second LAA user equipment UE, and/or sending the channel to the first LAA site and/or the first LAA user equipment UE on the licensed carrier.

3. The method of claim 2, wherein the occupancy signal comprises at least one of: cell-specific reference signals CRS, primary synchronization signals PSS, secondary synchronization signals SSS, channel state information reference signals CSI-RS, positioning reference signals PRS, sounding reference signals SRS, random access preambles.

4. The method of claim 3, wherein the transmitting the occupancy signal to the first LAA site and/or the first LAA User Equipment (UE) over an unlicensed carrier by the LAA site and/or the second LAA User Equipment (UE) comprises:

and when the occupation signal consists of the CRS and the PSS, the LAA site and/or the second LAA user equipment UE transmits the PSS on the central 6 physical resource blocks PRB of the unlicensed carrier, and transmits the CRS on other PRBs of the unlicensed carrier.

5. The method of claim 3, wherein the transmitting the occupancy signal to the first LAA site and/or the first LAA User Equipment (UE) over an unlicensed carrier by the LAA site and/or the second LAA User Equipment (UE) comprises:

and the LAA site and/or the second LAA user equipment UE repeatedly transmits the PSS to the first LAA site and/or the first LAA user equipment UE in the unlicensed carrier by taking 6 continuous or discontinuous PRBs as a unit.

6. The method of claim 3, wherein the transmitting the occupancy signal to the first LAA site and/or the first LAA User Equipment (UE) over an unlicensed carrier by the LAA site and/or the second LAA User Equipment (UE) comprises:

when the occupation signal is composed of the CRS and the SSS, the LAA site and/or the second LAA user equipment UE transmits the SSS to the first LAA site and/or the first LAA user equipment UE on the central 6 PRBs of the unlicensed carrier, and transmits the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier, wherein the other PRBs are PRBs left except the central 6 PRBs of the unlicensed carrier.

7. The method of claim 3, wherein the transmitting the occupancy signal to the first LAA site and/or the first LAA User Equipment (UE) over an unlicensed carrier by the LAA site and/or the second LAA User Equipment (UE) comprises:

the LAA site and/or the second LAA user equipment UE repeatedly transmit the SSS to the first LAA site and/or the first LAA user equipment UE in the unlicensed carrier in units of 6 continuous or discontinuous PRBs.

8. The method of claim 3, wherein the transmitting the occupancy signal to the first LAA site and/or the first LAA User Equipment (UE) over an unlicensed carrier by the LAA site and/or the second LAA User Equipment (UE) comprises:

when the occupied signal is composed of the CRS, the PSS, and the SSS, the LAA site and/or the second LAA user equipment UE transmit the PSS and the SSS to the first LAA site and/or the first LAA user equipment UE on the central 12 PRBs of the unlicensed carrier, and transmit the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier, wherein the PSS and the SSS each occupy 6 consecutive PRBs out of the 12 PRBs, and the other PRBs are PRBs remaining except the central 12 PRBs of the unlicensed carrier.

9. The method of claim 8, wherein the PSS and SSS each occupy 6 consecutive ones of the 12 PRBs in a manner comprising one of:

the PSS is preempting 6 consecutive PRBs, or the SSS is preempting 6 consecutive PRBs.

10. The method of claim 1, wherein the LAA site transmitting an occupancy signal to a first LAA site and/or a first LAA User Equipment (UE) over an unlicensed carrier comprises:

when M is less than or equal to 2048, copying the contents of the 2048-M +1 to 2048 th sampling points of the next symbol of the current symbol of the unauthorized carrier by the LAA site, and starting to transmit the contents of the copied M sampling points on the unauthorized carrier from the moment of competing to the unauthorized carrier;

when M is more than 2048 but less than or equal to 2192, the LAA site copies the contents of the 1 st to Mth sampling points of the next symbol of the current symbol of the unauthorized carrier, and transmits the contents of the copied M sampling points from the moment of competition to the unauthorized carrier on the unauthorized carrier.

11. The method of claim 1, wherein the LAA site transmitting an occupancy signal to a first LAA site and/or a first LAA User Equipment (UE) over an unlicensed carrier comprises:

when M is less than or equal to 2048, the LAA site starts to transmit CRS or other occupied signals of the foremost M of 2048 sampling points on the unlicensed carrier from the moment of competing to the unlicensed carrier;

when M is greater than 2048 but less than or equal to 2192, the LAA station transmits the CRS or other occupied signals of the foremost M of the 2192 sampling points on the unlicensed carrier from the moment of occupying the unlicensed carrier, wherein the content of the foremost 144 sampling points in the CRS or other occupied signals of the 2192 sampling points is a copy of the rearmost 144 sampling points;

when M is larger than 2192, the LAA site repeatedly sends the CRS or other occupying signals of 2192 sampling points on the unlicensed carrier from the moment of occupying the unlicensed carrier to a subframe boundary of a junction between a current subframe and a next subframe of the licensed carrier; or, when M is greater than 2192, the LAA station transmits the CRS or other occupancy signals of the first Mod (M, 2192) sampling points of the 2192 sampling points on the unlicensed carrier from the time of contention to the unlicensed carrier, and then repeatedly transmits the CRS or other occupancy signals of the 2192 sampling points until a subframe boundary where a current subframe and a next subframe of the licensed carrier intersect, wherein Mod (M, 2192) is used for indicating modulo M by 2192.

12. The method of claim 1, wherein the transmitting, by the LAA site, the occupancy signal to the first LAA site and/or the first LAA user equipment UE over an unlicensed carrier comprises:

when M is less than or equal to 2048, the LAA site starts to transmit cell-specific reference signals (CRSs) of 2048+ K sampling points or other occupied signals from the time of competition to a channel on the unlicensed carrier, wherein K is a non-negative integer not exceeding 160; or the like, or, alternatively,

13. The method of claim 4, 6 or 8, wherein the transmitting the CRS by the LAA station comprises:

the LAA site transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB), wherein the CRS is used for indicating different cell information of the LAA site on different REs.

14. The method of claim 13, wherein the cell information comprises: antenna port information, time length information of the LAA site occupying the unauthorized carrier, and cell identification number information of the unauthorized carrier.

15. The method of claim 13, wherein the one PRB includes 12 REs in one time domain symbol, and wherein the REs are numbered from RE0, RE1, RE2 to RE11 in descending order of frequency.

16. The method of claim 13, wherein the LAA site transmitting the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) comprises:

when the LAA site transmits the CRS by using 1 antenna port, the LAA site transmits the CRS on RE0, RE4 and RE8, wherein the result of taking the modulo 12 of the Cell identification number Cell _ ID of the unlicensed carrier transmitted by the CRS on different REs is equal to the number of the RE when the CRS is transmitted on different REs.

17. The method of claim 14, wherein the transmitting, by the LAA station, the CRS over different resource elements, REs, of one physical resource block, PRB, comprises:

18. The method of claim 15, wherein the transmitting the CRS over different resource elements, REs, of one physical resource block, PRB, by the LAA station comprises: when the LAA site transmits the CRS by using 1 antenna port, the LAA site transmits the CRS on RE0, RE4 and RE8, wherein the result of taking the modulo 12 of the Cell identification number Cell _ ID of the unlicensed carrier transmitted by the CRS on different REs is equal to the number of the RE when the CRS is transmitted on different REs.

19. The method of claim 13, wherein the LAA site transmitting the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) comprises:

20. The method of claim 14, wherein the transmitting, by the LAA station, the CRS over different resource elements, REs, of one physical resource block, PRB, comprises:

21. The method of claim 15, wherein the transmitting the CRS over different resource elements, REs, of one physical resource block, PRB, by the LAA station comprises:

22. The method of claim 13, wherein the LAA site transmitting the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) comprises:

23. The method of claim 14, wherein the transmitting, by the LAA station, the CRS over different resource elements, REs, of one physical resource block, PRB, comprises:

24. The method of claim 15, wherein the transmitting the CRS over different resource elements, REs, of one physical resource block, PRB, by the LAA station comprises: when the LAA station transmits the CRS with 2 antenna ports, the LAA station transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE2, RE6, RE 10.

25. The method of claim 13,

the result of taking the module of 6 for the Cell identification number Cell _ ID of the unlicensed carrier transmitted by the CRS on different REs is equal to the number of the RE when the CRS with a smaller port number is transmitted on different REs divided by 2, and the result of taking the module of 6 for the Cell identification number Cell _ ID is equal to the number of the RE when the CRS with a larger port number is transmitted on different REs minus one and divided by 2.

26. The method of claim 14,

27. The method of claim 15,

28. The method of claim 13, wherein the LAA site transmitting the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) comprises:

when the LAA site transmits the CRS with 4 antenna ports, the LAA site transmits the CRS of the 1 st port on RE0, RE4, RE8, transmits the CRS of the 2 nd port on RE1, RE5, RE9, transmits the CRS of the 3 rd port on RE2, RE6, RE10, and transmits the CRS of the 4 th port on RE3, RE7, RE 11.

29. The method of claim 14, wherein the transmitting, by the LAA station, the CRS over different resource elements, REs, of one physical resource block, PRB, comprises:

30. The method of claim 15, wherein the transmitting the CRS over different resource elements, REs, of one physical resource block, PRB, by the LAA station comprises: when the LAA site transmits the CRS with 4 antenna ports, the LAA site transmits the CRS of the 1 st port on RE0, RE4, RE8, transmits the CRS of the 2 nd port on RE1, RE5, RE9, transmits the CRS of the 3 rd port on RE2, RE6, RE10, and transmits the CRS of the 4 th port on RE3, RE7, RE 11.

31. The method of claim 13, wherein the LAA site transmitting the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) comprises:

when the LAA site transmits the CRS with 4 antenna ports, the LAA site transmits the CRS of the 1 st port on RE0, RE4, RE8, transmits the CRS of the 2 nd port on RE2, RE6, RE10, transmits the CRS of the 3 rd port on RE1, RE5, RE9, and transmits the CRS of the 4 th port on RE3, RE7, RE 11.

32. The method of claim 14, wherein the transmitting, by the LAA station, the CRS over different resource elements, REs, of one physical resource block, PRB, comprises:

33. The method of claim 15, wherein the transmitting the CRS over different resource elements, REs, of one physical resource block, PRB, by the LAA station comprises: when the LAA site transmits the CRS with 4 antenna ports, the LAA site transmits the CRS of the 1 st port on RE0, RE4, RE8, transmits the CRS of the 2 nd port on RE2, RE6, RE10, transmits the CRS of the 3 rd port on RE1, RE5, RE9, and transmits the CRS of the 4 th port on RE3, RE7, RE 11.

34. The method of claim 14, wherein the time length information is expressed by one of:

using CRS of different sequences or other said occupation signals to represent different time length information for occupying said unlicensed carrier;

using CRS of different pseudo random sequences or other said occupation signals to represent different time length information for occupying said unlicensed carrier;

using the occupancy signals of different Zadoff-Chu sequences to represent different time length information for occupying the unlicensed carrier.

35. The method of claim 1 or 2, wherein transmitting channels to a first LAA site and/or a first LAA user equipment UE around the LAA site over an unlicensed carrier and/or a licensed carrier by a licensed carrier assisted access LAA site comprises:

the LAA site sends a Physical Downlink Control Channel (PDCCH) and/or an Enhanced Physical Downlink Control Channel (EPDCCH) on the authorized carrier; and/or the presence of a gas in the gas,

the LAA site sends a Physical Downlink Control Channel (PDCCH) and/or an Enhanced Physical Downlink Control Channel (EPDCCH) on the unlicensed carrier;

wherein the PDCCH and the EPDCCH are used for indicating occupation information and/or scheduling information of one or more unlicensed carriers, wherein the occupation information comprises: occupation time starting point information and the occupation time length information.

36. The method of claim 35, comprising:

the occupation time starting point information includes: symbol starting point information and sampling point starting point information of a first symbol of a current subframe;

the symbol start point information is the second symbol relative to the authorized carrier at the time when the LAA site occupies the unlicensed carrier, wherein the symbol start point information is represented by 4 bits; the sampling point starting point information of the first symbol is the second sampling point relative to the current symbol where the authorized carrier is located at the moment when the LAA station competes for the unauthorized carrier, wherein the sampling point starting point information of the first symbol is represented by 12 bits.

37. The method of claim 36, wherein the information about the start of the sampling point of the first symbol comprises one of:

and the sampling point starting point information of the first symbol is represented by 11 bits, wherein the measurement unit of the sampling point starting point information is 2 sampling points.

38. The method of claim 35,

the occupied time length information is represented by 2 bits, wherein "00", "01", "10" and "11" indicated by the 2 bits sequentially represent subframes occupying 1,2,3 and 4 one millisecond respectively; or the like, or, alternatively,

the occupied time length information is represented by 3 bits, wherein "000", "001", "010", "011", "100", "101", "110" and "111" indicated by the 3 bits sequentially represent subframes occupying 1,2,3, 4 and 4 one millisecond respectively; or the like, or, alternatively,

the occupied time length information is represented by 3 bits, wherein "000", "001", "010", "011", "100", "101", "110" and "111" indicated by the 3 bits sequentially represent subframes occupying 1,2,3, 4, 5, 6, 8 and 10 one millisecond respectively; or the like, or, alternatively,

39. The method of claim 1 or 2, wherein the transmitting, by the LAA site, the channel to the first LAA site and/or the first LAA user equipment UE over a licensed carrier comprises:

when the authorized carrier is Time Division Duplex (TDD) and the LAA site competes for the unauthorized carrier relative to an uplink subframe of the authorized carrier, or an uplink pilot time slot (UpPTS) of a TDD special subframe, or a guard interval (GP) of the TDD special subframe, or a downlink pilot time slot (DwPTS) of the TDD special subframe, the LAA site sends an Enhanced Physical Downlink Control Channel (EPDCCH) on the uplink subframe of the TDD of the authorized carrier, wherein the EPDCCH is used for indicating the occupation information and/or scheduling information of the LAA site on one or more unauthorized carriers.

40. The method of claim 1 or 2, wherein the transmitting, by the LAA site, the channel to the first LAA site and/or the first LAA user equipment UE via the grant carrier comprises:

when the authorized carrier is Time Division Duplex (TDD) and the LAA site competes for the unlicensed carrier relative to an uplink subframe, an uplink pilot time slot (UpPTS) of the TDD, or a guard interval (GP) of a TDD special subframe, or a downlink pilot time slot (DwPTS) of the TDD special subframe, the LAA site sends a Physical Downlink Control Channel (PDCCH), and/or an Enhanced Physical Downlink Control Channel (EPDCCH), and/or an occupation signal on the downlink pilot time slot (DwPTS) of the TDD special subframe of the authorized carrier, wherein the PDCCH, the EPDCCH, and the occupation signal are used for indicating occupation information and/or scheduling information of the LAA site on one or more unlicensed carriers.

41. The method of claim 39, comprising:

when a second LAA user equipment has no Physical Uplink Shared Channel (PUSCH) transmission, no Physical Uplink Control Channel (PUCCH) transmission, no Physical Random Access Channel (PRACH) transmission and no Sounding Reference Signal (SRS) transmission on the uplink subframe of the TDD of the authorized carrier, the LAA site transmits the EPDCCH to the second LAA User Equipment (UE) on the uplink subframe of the TDD of the authorized carrier; or the like, or, alternatively,

the LAA site performs puncturing on the last symbol of the Enhanced Physical Downlink Control Channel (EPDCCH) on the uplink subframe of the TDD of the authorized carrier, wherein the puncturing is used for indicating that resource units (RE) on the symbol are not transmitted and setting the power to zero;

the LAA site performs rate matching on Resource Elements (REs) of the Enhanced Physical Downlink Control Channel (EPDCCH) on the TDD uplink subframe of the authorized carrier except for the last symbol.

42. The method of claim 40, comprising:

43. The method as claimed in claim 39, wherein the transmitting, by the LAA site, the channel to the first LAA site and/or the first LAA User Equipment (UE) over the licensed carrier comprises:

when the authorized carrier is Time Division Duplex (TDD) and the LAA site competes for the unauthorized carrier relative to the uplink pilot time slot (UpPTS) of the uplink subframe or the TDD special subframe of the authorized carrier or the guard interval (GP) of the TDD special subframe or the downlink pilot time slot (DwPTS) of the TDD special subframe, the LAA site sends the PDCCH and/or the EPDCCH on the next downlink subframe after the end of the uplink subframe of the TDD of the authorized carrier, wherein the PDCCH and/or the EPDCCH are used for indicating scheduling information of the LAA site on one or more unauthorized carriers.

44. The method as claimed in claim 40, wherein the transmitting, by the LAA site, the channel to the first LAA site and/or the first LAA User Equipment (UE) over the licensed carrier comprises:

45. The method of claim 43, comprising:

and when the authorized carrier is Time Division Duplex (TDD), the second LAA User Equipment (UE) starts to receive and buffer the data of the unauthorized carrier at the start time of a guard interval (GP) of a TDD special subframe of the authorized carrier, or the start time of an uplink pilot time slot (UpPTS) of the TDD special subframe, or the start time of a downlink pilot time slot (DwPTS) of the TDD special subframe, or the start time of the uplink subframe of the TDD special subframe.

46. The method of claim 43, wherein the transmitting, by the LAA site, a channel to the first LAA site and/or the first LAA User Equipment (UE) over a licensed carrier comprises:

and when the authorized carrier is Time Division Duplex (TDD), the LAA site sends the PDCCH and/or the EPDCCH to a second LAA User Equipment (UE) on the authorized carrier, wherein the second LAA User Equipment (UE) decodes the PDCCH and/or the EPDCCH to acquire the scheduling information, the scheduling information is used for indicating the buffered data of the unlicensed carrier, and the second LAA User Equipment (UE) acquires different cell information, the occupation information and/or the scheduling information according to the received occupation signal, the PDCCH and/or the EPDCCH.

47. The method of claim 45, wherein the transmitting, by the LAA site, a channel to the first LAA site and/or the first LAA User Equipment (UE) over a licensed carrier comprises:

and when the authorized carrier is Time Division Duplex (TDD), the LAA site sends the PDCCH and/or the EPDCCH to the second LAA User Equipment (UE) on the authorized carrier, wherein the second LAA User Equipment (UE) decodes the PDCCH and/or the EPDCCH to acquire the scheduling information, the scheduling information is used for indicating the buffered data of the unlicensed carrier, and the second LAA User Equipment (UE) acquires different cell information, the occupation information and/or the scheduling information according to the received occupation signal, the PDCCH and/or the EPDCCH.

48. The method of claim 46, further comprising:

the LAA site receives a channel sent by the second LAA user equipment UE on the unlicensed carrier wave according to the different cell information, and/or the occupation information, and/or the scheduling information; and/or a random access preamble and/or a Sounding Reference Signal (SRS) transmitted on the unlicensed carrier; and/or the presence of a gas in the gas,

the LAA site receives a channel sent by the second LAA user equipment UE on the authorized carrier according to the different cell information, and/or the occupation information, and/or the scheduling information; and/or transmitting a random access preamble and/or a Sounding Reference Signal (SRS) on the authorized carrier.

49. The method of claim 48, further comprising:

the first LAA site and/or the first LAA user equipment UE obtaining the different cell information, and/or the occupancy information, and/or the scheduling information according to the occupancy signal, and/or the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS received on the unlicensed carrier; and/or the presence of a gas in the gas,

the first LAA site and/or the first LAA user equipment UE obtain the different cell information, and/or the occupancy information, and/or the scheduling information according to the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS received on the licensed carrier.

50. An apparatus for channel occupation, located on a site side of an licensed carrier assisted access (LAA), comprising:

a sending module, configured to send a channel to a first LAA site and/or first LAA user equipment UE around the LAA site through an unlicensed carrier and/or a licensed carrier, where the first LAA site and/or the first LAA user equipment UE receive the channel sent by the sending module; the channel is used for indicating the LAA station to compete to the unlicensed carrier and occupation information of the LAA station to occupy the unlicensed carrier, wherein the duration of time for occupying the unlicensed carrier is less than, equal to or greater than the duration of a specified symbol, the duration of the specified symbol is 2208 sampling points or 2192 sampling points, and the duration of one sampling point is 1/(2048 × 15000) seconds;

wherein, include: a marking module, configured to mark, when the LAA station competes for the unlicensed carrier, a time from a subframe boundary where a current subframe and a next subframe of the licensed carrier of the LAA station compete for the unlicensed carrier as M sampling points, where M is a nonnegative integer;

wherein, still include: a third copying module, configured to copy contents of 2192 sample points of the 1 st to 2192 nd symbols of the next unauthorized carrier when M is greater than 2192; the sending module is configured to repeatedly send the contents of the copied 2192 sample points on the unlicensed carrier from the time of contention to the unlicensed carrier until the next subframe boundary of the licensed carrier.

51. The apparatus of claim 50,

the sending module is configured to send the channel to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier, and/or send the channel to the first LAA site and/or the first LAA user equipment UE on the licensed carrier; and/or the presence of a gas in the gas,

for transmitting the channel to a second LAA User Equipment (UE) on the unlicensed carrier and/or transmitting the channel to the second LAA User Equipment (UE) on the licensed carrier; and sending the channel to the first LAA site and/or the first LAA user equipment UE on the unlicensed carrier by the second LAA user equipment UE, and/or sending the channel to the first LAA site and/or the first LAA user equipment UE on the licensed carrier.

52. The apparatus of claim 51, wherein the occupancy signal comprises at least one of: cell-specific reference signals CRS, primary synchronization signals PSS, secondary synchronization signals SSS, channel state information reference signals CSI-RS, positioning reference signals PRS, sounding reference signals SRS, random access preambles.

53. The apparatus of claim 52,

and the sending module is configured to send the PSS on the central 6 physical resource blocks PRB of the unlicensed carrier and send the CRS on other PRBs of the unlicensed carrier when the occupied signal is composed of the CRS and the PSS.

54. The apparatus of claim 52,

the sending module is configured to repeatedly send the PSS to the first LAA site and/or the first LAA user equipment UE in units of 6 consecutive or discontinuous PRBs on the unlicensed carrier.

55. The apparatus of claim 52,

the sending module is configured to send the SSS to the first LAA site and/or the first LAA user equipment UE on central 6 PRBs of the unlicensed carrier and send the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier when the occupied signal consists of the CRS and the SSS, where the other PRBs are PRBs remaining except for the central 6 PRBs of the unlicensed carrier.

56. The apparatus of claim 52,

the sending module is configured to repeatedly send the SSS to the first LAA site and/or the first LAA user equipment UE in the unlicensed carrier in units of 6 consecutive or discontinuous PRBs.

57. The apparatus of claim 52,

the sending module is configured to send the PSS and the SSS to the first LAA site and/or the first LAA user equipment UE on central 12 PRBs of the unlicensed carrier and send the CRS to the first LAA site and/or the first LAA user equipment UE on other PRBs of the unlicensed carrier when the occupied signal is composed of the CRS, the PSS and the SSS, where the PSS and the SSS occupy 6 consecutive PRBs of the 12 PRBs and the other PRBs are PRBs remaining except for the central 12 PRBs of the unlicensed carrier.

58. The apparatus of claim 57, wherein the PSS and the SSS occupy 6 consecutive ones of the 12 PRBs each comprising one of:

59. The apparatus of claim 50, comprising

The first copying module is used for copying the contents of the 2048-M +1 to 2048 th sampling points of the next symbol of the current symbol of the unauthorized carrier when M is less than or equal to 2048;

the sending module is further configured to send the content of the copied M sampling points on the unlicensed carrier from a time when the unlicensed carrier is contended to; or the like, or, alternatively,

the second copying module is used for copying the contents of the 1 st to M-th sampling points of the next symbol of the current symbol of the unauthorized carrier when M is more than 2048 but less than or equal to 2192;

the sending module is configured to send the copied contents of M sampling points on the unlicensed carrier from a time when the unlicensed carrier is contended to; or the like, or, alternatively,

a third copying module, configured to copy contents of 2192 sample points of the 1 st to 2192 nd symbols of the next unauthorized carrier when M is greater than 2192;

the sending module is configured to repeatedly send the contents of the copied 2192 sample points on the unlicensed carrier from the time of contention to the unlicensed carrier until the next subframe boundary of the licensed carrier.

60. The apparatus of claim 50, further comprising:

a fourth copying module, configured to, when M is less than or equal to 2048, start sending, by the sending module, CRS or other occupancy signals of the top M sampling points of the 2048 sampling points on the unlicensed carrier from a time when contention to the unlicensed carrier occurs; or the like, or, alternatively,

a fifth copying module, configured to transmit the CRS or other occupied signals of the top M of the 2192 sampling points on the unlicensed carrier through the transmitting module from a time when the unlicensed carrier is occupied when M is greater than 2048 but less than or equal to 2192, where the content of the top 144 sampling points in the CRS or other occupied signals of the 2192 sampling points is a copy of the bottom 144 sampling points; or the like, or, alternatively,

a sixth replication module, configured to, when M is greater than 2192, repeat, by the LAA station, on the unlicensed carrier, through the sending module, sending the CRS of 2192 sampling points or other occupied signals until a subframe boundary between a current subframe and a next subframe of the licensed carrier from a time when the unlicensed carrier is occupied; or, the sixth replication module is configured to, when M is greater than 2192, transmit, by the LAA station, the CRS or other occupancy signals of the first Mod (M, 2192) sampling points of the 2192 sampling points on the unlicensed carrier from a time of contention to the unlicensed carrier through the transmission module, and then repeatedly transmit the CRS or other occupancy signals of the 2192 sampling points until a subframe boundary where a current subframe and a next subframe of the licensed carrier intersect, where Mod (M, 2192) is used to indicate modulo 2192 of M.

61. The apparatus of claim 50,

the sending module is configured to send a cell-specific reference signal CRS or other occupancy signals of 2048+ K sampling points on the unlicensed carrier from a time of contention to a channel when M is less than or equal to 2048, where K is a non-negative integer not exceeding 160; or the like, or, alternatively,

62. The apparatus of claim 53, 55 or 57, wherein the LAA site transmits the CRS in a manner comprising:

transmitting the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB), wherein the CRS is used for indicating different cell information of the LAA site on different REs.

63. The apparatus of claim 62, wherein the cell information comprises: antenna port information, time length information of the LAA site occupying the unauthorized carrier, and cell identification number information of the unauthorized carrier.

64. The apparatus of claim 62, wherein the one PRB comprises 12 REs in one time domain symbol, and wherein the REs are numbered RE0, RE1, RE2, and up to RE11, in descending order of frequency.

65. The apparatus of claim 62, wherein the CRS is transmitted on different Resource Elements (REs) of one Physical Resource Block (PRB) in a manner that comprises:

when the LAA site transmits the CRS with 1 antenna port, the transmitting module transmits the CRS over RE0, RE4, and RE8, wherein a result of taking a modulo of 12 from a Cell identification number Cell _ ID of the unlicensed carrier transmitted by the CRS over different REs is equal to a number of the RE when the CRS is transmitted over different REs.

66. The apparatus of claim 63, wherein the CRS is transmitted on different Resource Elements (REs) of one Physical Resource Block (PRB) according to a scheme comprising:

67. The apparatus of claim 64, wherein the CRS is transmitted on different Resource Elements (REs) of one Physical Resource Block (PRB) in a manner that comprises:

68. The apparatus of claim 62, wherein the transmitting, by the LAA station, the CRS pattern on different Resource Elements (REs) of one Physical Resource Block (PRB) comprises:

when the LAA site transmits the CRS with 2 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE1, RE5, RE 9.

69. The apparatus of claim 63, wherein the transmitting, by the LAA station, the CRS pattern on different Resource Elements (REs) of one Physical Resource Block (PRB) comprises:

70. The apparatus of claim 64, wherein the transmitting, by the LAA station, the CRS pattern on different Resource Elements (REs) of one Physical Resource Block (PRB) comprises:

71. The apparatus of claim 62, wherein the LAA station transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) by:

when the LAA site transmits the CRS with 2 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, RE8, and transmits the CRS of the 2 nd port on RE2, RE6, RE 10.

72. The apparatus of claim 63, wherein the LAA station transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) by:

73. The apparatus of claim 64, wherein the LAA station transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) by:

74. The apparatus according to claim 62,

75. The apparatus of claim 63,

76. The apparatus of claim 64,

77. The apparatus of claim 62, wherein the LAA station transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) by:

when the LAA site transmits the CRS with 4 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, and RE8, transmits the CRS of the 2 nd port on RE1, RE5, and RE9, transmits the CRS of the 3 rd port on RE2, RE6, and RE10, and transmits the CRS of the 4 th port on RE3, RE7, and RE 11.

78. The apparatus of claim 63, wherein the LAA station transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) by:

79. The apparatus of claim 64, wherein the LAA station transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) by:

80. The apparatus of claim 62, wherein the LAA station transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) by:

when the LAA site transmits the CRS with 4 antenna ports, the transmitting module transmits the CRS of the 1 st port on RE0, RE4, and RE8, transmits the CRS of the 2 nd port on RE2, RE6, and RE10, transmits the CRS of the 3 rd port on RE1, RE5, and RE9, and transmits the CRS of the 4 th port on RE3, RE7, and RE 11.

81. The apparatus of claim 63, wherein the LAA station transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) by:

82. The apparatus of claim 64, wherein the LAA station transmits the CRS on different Resource Elements (REs) of one Physical Resource Block (PRB) by:

83. The apparatus according to claim 64, wherein the time length information is expressed by one of:

84. The apparatus of claim 50 or 51,

the sending module is further configured to send a physical downlink control channel PDCCH and/or an enhanced physical downlink control channel EPDCCH on the authorized carrier; and/or the presence of a gas in the gas,

transmitting a Physical Downlink Control Channel (PDCCH) and/or an Enhanced Physical Downlink Control Channel (EPDCCH) on the unlicensed carrier;

85. The apparatus as claimed in claim 84, comprising:

86. The apparatus according to claim 85, wherein the information about the start of the sampling point of the first symbol comprises one of:

87. The apparatus according to claim 84,

the occupied time length information is represented by 2 bits, wherein "00", "01", "10", "11" indicated by the 2 bits respectively represent subframes occupying 1,2,3, 4 one millisecond; or the like, or, alternatively,

the occupied time length information is represented by 2 bits, wherein "00", "01", "10", "11" indicated by the 2 bits respectively represent subframes occupying 1,2, 4 and 10 one millisecond; or the like, or, alternatively,

88. The apparatus of claim 50 or 51,

the sending module is further configured to send an enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the licensed carrier when the licensed carrier is TDD and the LAA station competes for the unlicensed carrier relative to an uplink subframe of the licensed carrier, or an uplink pilot timeslot UpPTS of a TDD special subframe, or a guard interval GP of the TDD special subframe, or a downlink pilot timeslot DwPTS of the TDD special subframe, where the EPDCCH is used to indicate occupancy information and/or scheduling information of the LAA station on one or more unlicensed carriers.

89. The apparatus of claim 50 or 51,

90. The apparatus as claimed in claim 88 and including:

the sending module is configured to send the EPDCCH to the second LAA user equipment UE on the uplink subframe of the TDD of the authorized carrier when the second LAA user equipment has no transmission of a physical uplink shared channel PUSCH, no transmission of a physical uplink control channel PUCCH, no transmission of a physical random access channel PRACH, and no transmission of a sounding reference signal SRS; or the like, or, alternatively,

on the uplink subframe of the TDD of the authorized carrier, when the second LAA user equipment has a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH or a physical random access channel PRACH or a sounding reference signal SRS, receiving or not receiving the EPDCCH sent by the LAA site on the uplink subframe of the TDD of the authorized carrier to the second LAA user equipment UE;

a puncturing module, configured to puncture a last symbol of the enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the licensed carrier, where the puncturing is used to indicate that a resource element RE on the symbol is not sent, and set a power to zero;

a matching module, configured to perform rate matching on resource elements RE of the enhanced physical downlink control channel EPDCCH on the TDD uplink subframe of the licensed carrier except for a last symbol.

91. The apparatus according to claim 89, comprising:

92. The apparatus according to claim 88,

the sending module is configured to send the PDCCH and/or the EPDCCH on a next downlink subframe after an uplink subframe of the TDD of the authorized carrier ends when the authorized carrier is a Time Division Duplex (TDD) and the LAA site competes for the unlicensed carrier relative to an uplink pilot time slot (UpPTS) of an uplink subframe or a TDD special subframe of the authorized carrier or a guard interval (GP) of the TDD special subframe or a downlink pilot time slot (DwPTS) of the TDD special subframe, where the PDCCH and/or the EPDCCH are used to indicate scheduling information of the LAA site on one or more unlicensed carriers.

93. The apparatus according to claim 89,

94. The apparatus according to claim 92, comprising:

95. The apparatus according to claim 92,

the sending module is configured to send the PDCCH and/or the EPDCCH to a second LAA user equipment UE on the licensed carrier when the licensed carrier is TDD, where the second LAA user equipment UE decodes the PDCCH and/or the EPDCCH to obtain the scheduling information, where the scheduling information is used to indicate that the buffered data of the unlicensed carrier is decoded, and the second LAA user equipment UE obtains different cell information, and/or the occupation information, and/or the scheduling information according to the received occupation signal, and/or the PDCCH, and/or the EPDCCH.

96. The apparatus according to claim 94,

the sending module is configured to send the PDCCH and/or the EPDCCH to the second LAA user equipment UE on the licensed carrier when the licensed carrier is TDD, where the second LAA user equipment UE decodes the PDCCH and/or the EPDCCH to obtain the scheduling information, where the scheduling information is used to indicate that the buffered data of the unlicensed carrier is decoded, and the second LAA user equipment UE obtains different cell information, and/or the occupation information, and/or the scheduling information according to the received occupation signal, and/or the PDCCH, and/or the EPDCCH.

97. The apparatus of claim 95, further comprising:

a receiving module, configured to receive a channel sent by the second LAA UE on the unlicensed carrier according to the different cell information, and/or the occupancy information, and/or the scheduling information; and/or a random access preamble and/or a Sounding Reference Signal (SRS) transmitted on the unlicensed carrier; and/or the presence of a gas in the gas,

receiving a channel sent by the second LAA user equipment UE on the authorized carrier according to the different cell information, and/or the occupation information, and/or the scheduling information; and/or transmitting a random access preamble and/or a Sounding Reference Signal (SRS) on the authorized carrier.

98. The apparatus according to claim 97,

the transmitting module is further configured to transmit, to the first LAA site and/or the first LAA user equipment UE, the occupied signal, and/or the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS on the unlicensed carrier, where the occupied signal, and/or the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS are used to instruct the first LAA site and/or the first LAA user equipment UE to acquire the different cell information, and/or the occupied information, and/or the scheduling information; and/or

The sending module is further configured to send the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS to the first LAA site and/or the first LAA user equipment UE on the licensed carrier, where the PDCCH, and/or the EPDCCH, and/or the random access preamble, and/or the SRS are used to instruct the first LAA site and/or the first LAA user equipment UE to acquire the different cell information, and/or the occupancy information, and/or the scheduling information.