JP2019180092A - Terminal, base station, base station controller, and millimetric wave cellular communication method - Google Patents

Abstract

To disclose a terminal, a base station, a base station controller, and a millimetric wave cellular communication method, in the field of wireless communication technology.SOLUTION: A terminal includes a bus, and a processor, a memory, a transmitter and a receiver connected with the bus. The processor controls the receiver so as to acquire at least a part of beam index information corresponding to at least one millimetric wave band, and is configured to communicate with a millimetric wave base station corresponding to at least one millimetric wave band, by using a beam corresponding to at least a part of the beam index information. The invention expands the frequency range of terminal communication, increases data transmission rate of the terminal, reduces signal fading and distortion of millimetric wave communication between the terminal and the millimetric wave base station, and thereby reduces interference between users on the same channel, thus solving the problem in the prior art that the available bandwidth is relatively small when the terminal performs cellular communication.SELECTED DRAWING: Figure 1

Description

  The present invention relates to the field of wireless communication technology, and in particular, to a terminal, a base station, a base station controller, and a millimeter wave cellular communication method.

With the rapid development of packet services and intelligent terminals, an increasing number of services with large data volumes are emerging to provide users with a better network experience. Correspondingly, these services with high data volumes have increased requirements on the transmission rate and spectrum of wireless networks.
Long Term Evolution Advanced (English: Long Term Evolution-Advanced, LTE-A for short) is a further evolution of LTE Long Term Evolution (English: Long Term Evolution, LTE for short). The downlink peak rate and uplink peak rate provided by LTE-A can reach 1 Gbps and 500 Mbps, respectively. However, in the prior art, the maximum bandwidth supported by LTE-A is only 100 MHz, and the available spectrum range is limited. Therefore, meeting future service requirements for capacity and peak data rates is difficult.

US Patent Application Publication No. 2013/0155847 US Patent Application Publication No. 2013/0286960 JP 2010-171734 A US Patent Application Publication No. 2014/0177607 International Publication No. 2014/13311

  In the prior art that the maximum bandwidth supported by LTE-A is only 100 MHz and the available spectrum range is limited, making it difficult to meet future service requirements for capacity and peak data rates. To solve the problem, embodiments of the present invention provide a terminal, a base station, a base station controller, and a millimeter wave cellular communication method. The technical solutions are as follows.

According to a first aspect, a terminal is provided, the terminal including a bus and a processor, a memory, a transmitter, and a receiver connected to the bus, the memory configured to store a number of instructions. And some instructions are configured to be executed by the processor,
Processor
Controlling the receiver to obtain beam index information corresponding to a millimeter wave band;
By using the beam corresponding to the beam index information, it is configured to communicate with the millimeter wave base station corresponding to the millimeter wave band.

In the first possible implementation scheme of the first aspect,
The processor controls the receiver to receive a radio resource reconfiguration message or broadcast message transmitted by the master base station or millimeter wave base station, and obtains beam index information included in the radio resource reconfiguration message or broadcast message Or the processor is further configured to negotiate with the master base station or millimeter wave base station to agree on beam index information;
The master base station and the millimeter wave base station are the same base station or different base stations.

With reference to the first possible implementation scheme of the first aspect, in the second possible implementation scheme of the first aspect,
The processor is further configured to select a beam corresponding to some or all of the beam index information in the beam index information and communicate with the millimeter wave base station, or the processor is in the beam index information The first beam index information designated by the master base station or the millimeter wave base station is determined, and is further configured to communicate with the millimeter wave base station according to a beam corresponding to the first beam index information.

  With reference to the first aspect, or the first or second possible implementation scheme of the first aspect, in the third possible implementation scheme of the first aspect, each part of the beam index information is one Corresponds to information about precoding codebook or information about one group of antenna weights, or each beam index corresponds to information about multiple precoding codebooks or information about multiple groups of antenna weights And the information about each precoding codebook or each group of antenna weights uniquely determines the beam.

With reference to the first aspect, or the first or second possible implementation scheme of the first aspect, in the fourth possible implementation scheme of the first aspect, each part of the beam index information is one Correspond to the coverage area of a sector or one cell, or each part of the beam index information corresponds to a part of the coverage area of one sector or one cell,
The beam index information is 1-level index information or N-level index information, where N is an integer and N ≧ 2,
When the beam index information is N-level index information, the i-th level index information in the beam index information is associated with the (i + 1) -th level index information, and the (i + 1) -th level index information is associated with the index information. The coverage area of the corresponding beam is not larger than the coverage area of the beam corresponding to the i-th level index information, i is an integer, and 2 ≦ i ≦ N.

With reference to the first possible implementation scheme of the first aspect or the first aspect, in the fifth possible implementation scheme of the first aspect, the beam index information is used for radio resource management RRM measurement Including second beam index information,
Processor
RRM measurement is performed according to the beam corresponding to the second beam index information to obtain the first measurement result, and the first measurement result is the reference signal received power RSRP and / or the reference signal reception quality. Including getting RSRQ,
Controlling a transmitter to send a first measurement report to a master base station or a millimeter wave base station according to a first measurement result, wherein the first measurement report includes the following information: highest RSRP and Beam index information with the highest RSRQ, RSRP measurement results and / or RSRQ measurement results on the beam corresponding to the highest RSRP and / or beam index information with the highest RSRQ, highest RSRP and / or highest RSRQ Is associated with the frequency information where the beam index information is located, the serving cell information associated with the highest RSRP and / or the beam index information with the highest RSRQ, or the beam index information with the highest RSRP and / or the highest RSRQ. Including at least one of the neighboring cell information, And is further configured to control and
Serving cell information or neighboring cell information is indicated by using a physical cell identifier PCI and / or cell global identification information CGI.

With reference to the fifth possible implementation scheme of the first aspect, in the sixth possible implementation scheme of the first aspect, the beam index information is the third beam index information used for candidate RRM measurement. In addition,
When the RSRP included in the first measurement result is smaller than the preconfigured threshold and / or the RSRQ included in the first measurement result is smaller than the preconfigured threshold, It is further configured to control the transmitter and the receiver to start performing RRM measurement according to the beam corresponding to the third beam index information.

With reference to the fifth possible implementation scheme of the first aspect, in the seventh possible implementation scheme of the first aspect, the beam index information is the fourth beam index information used for intra-frequency measurements. In addition,
Processor
Controlling the receiver to obtain measurement gap period information associated with the fourth beam index information;
In the measurement gap indicated by the measurement gap period information, an intra-frequency measurement is further performed on the millimeter wave band according to the beam corresponding to the fourth beam index information.

With reference to the fifth possible implementation scheme of the first aspect, in the eighth possible implementation scheme of the first aspect,
The processor is further configured to control the transmitter and receiver to communicate with the millimeter wave base station on the beam corresponding to the beam index information having the highest RSRP and / or highest RSRQ.

With reference to the first possible implementation manner of the first aspect or the first aspect, in the ninth possible implementation manner of the first aspect, the processor comprises:
Determining from the beam index information fifth beam index information used as a physical random access channel resource;
And performing random access according to the beam corresponding to the fifth beam index information.

With reference to the ninth possible implementation scheme of the first aspect, in the tenth possible implementation scheme of the first aspect,
The processor is further configured to select a portion of the beam index information from the beam index information as the fifth beam index information, or the processor is in the beam index information and is the master base as a physical random access channel resource. The beam index information specified by the station or millimeter wave base station is further configured to determine as the fifth beam index information.

With reference to the ninth possible implementation scheme of the first aspect, in the eleventh possible implementation scheme of the first aspect,
Processor
Controlling the transmitter to transmit a random access preamble on the beam corresponding to the fifth beam index information;
Receiving a random access response message on the beam corresponding to the fifth beam index information or controlling the receiver to receive a random access response message on the beam corresponding to the beam index information. Further configured.

With reference to the tenth possible implementation manner of the first aspect, in the twelfth possible implementation manner of the first aspect, the random access response message includes sixth beam index information;
Processor
Controlling the transmitter to transmit a random access message on a beam corresponding to the sixth beam index information, wherein the random access message includes an identifier of the terminal;
Receiving a contention resolution message on the beam corresponding to the sixth beam index or controlling the receiver to receive a contention resolution message on the beam corresponding to the beam index information, the contention resolution message Is further configured to control, including a terminal identifier,
The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

In the thirteenth possible implementation manner of the first aspect,
Processor
Controlling the receiver to receive sounding reference signal configuration information transmitted by a master base station or millimeter wave base station, which is sounding reference signal configuration information of a cell on a millimeter wave band;
And further controlling the transmitter to transmit a sounding reference signal on the beam corresponding to the beam index information according to the sounding reference signal configuration information.

According to a second aspect, a terminal is provided, the terminal comprising:
A receiving module configured to obtain beam index information corresponding to a millimeter wave band;
A communication module configured to communicate with a millimeter wave base station corresponding to a millimeter wave band by using a beam corresponding to the beam index information.

In the first possible implementation scheme of the second aspect:
The receiving module
Receiving a radio resource reconfiguration message or broadcast message sent by a master base station or millimeter wave base station;
Further configured to obtain beam index information included in the radio resource reconfiguration message or broadcast message;
The communication module is further configured to negotiate with the master base station or millimeter wave base station to agree on beam index information;
The master base station and the millimeter wave base station are the same base station or different base stations.

With reference to the first possible implementation scheme of the second aspect, in the second possible implementation scheme of the second aspect,
Communication module
Select a beam corresponding to some or all of the beam index information in the beam index information and communicate with the millimeter wave base station, or in the beam index information and specified by the master base station or millimeter wave base station Further configured to determine first beam index information and communicate with the millimeter wave base station according to a beam corresponding to the first beam index information.

  Referring to the second aspect, or the first or second possible implementation manner of the second aspect, in the third possible implementation manner of the second aspect, each part of the beam index information is one Corresponds to information about precoding codebook or information about one group of antenna weights, or each beam index corresponds to information about multiple precoding codebooks or information about multiple groups of antenna weights And the information about each precoding codebook or each group of antenna weights uniquely determines the beam.

With reference to the second aspect, or the first or second possible implementation scheme of the second aspect, in the fourth possible implementation scheme of the second aspect, each portion of the beam index information is one Correspond to the coverage area of a sector or one cell, or each part of the beam index information corresponds to a part of the coverage area of one sector or one cell,
The beam index information is 1-level index information or N-level index information, where N is an integer and N ≧ 2,
When the beam index information is N-level index information, the i-th level index information in the beam index information is associated with the (i + 1) -th level index information, and the (i + 1) -th level index information is associated with the index information. The coverage area of the corresponding beam is not larger than the coverage area of the beam corresponding to the i-th level index information, i is an integer, and 2 ≦ i ≦ N.

With reference to the first possible implementation manner of the second aspect or the second aspect, in the fifth possible implementation manner of the second aspect, the beam index information is used for radio resource management RRM measurement Including the second beam index information, the terminal
A measurement module configured to perform RRM measurement according to the beam corresponding to the second beam index information and obtain a first measurement result, wherein the first measurement result is a reference signal received power RSRP and And / or measurement module including reference signal reception quality RSRQ;
A transmission module configured to transmit a first measurement report to a master base station or a millimeter wave base station according to a first measurement result, wherein the first measurement report includes the following information: highest RSRP and / or Alternatively, the beam index information with the highest RSRQ, the RSRP measurement result and / or the RSRQ measurement result on the beam corresponding to the beam index information with the highest RSRP and / or the highest RSRQ, the highest RSRP and / or the highest RSRQ Associated with the frequency information where the beam index information is located, the serving cell information associated with the highest RSRP and / or the beam index information with the highest RSRQ, or the beam index information with the highest RSRP and / or the highest RSRQ. Includes at least one of neighboring cell information And a transmission module,
Serving cell information or neighboring cell information is indicated by using a physical cell identifier PCI and / or cell global identification information CGI.

With reference to the fifth possible implementation scheme of the second aspect, in the sixth possible implementation scheme of the second aspect, the beam index information is the third beam index information used for candidate RRM measurement. In addition, the measurement module includes
When the RSRP included in the first measurement result is smaller than the preconfigured threshold and / or when the RSRQ included in the first measurement result is smaller than the preconfigured threshold, the third Further configured to begin performing RRM measurement according to the beam corresponding to the beam index information.

Referring to the fifth possible implementation scheme of the second aspect, in the seventh possible implementation scheme of the second aspect, the beam index information is the fourth beam index information used for intra-frequency measurements. In addition,
The receiving module is further configured to obtain measurement gap period information associated with the fourth beam index information;
The measurement module is further configured to perform an intra-frequency measurement on the millimeter wave band according to the beam corresponding to the fourth beam index information within the measurement gap indicated by the measurement gap period information.

  Referring to the fifth possible implementation manner of the second aspect, in the eighth possible implementation manner of the second aspect, the communication module may receive a beam having the highest RSRP and / or the highest RSRQ by the terminal. Further configured to communicate with the millimeter wave base station on a beam corresponding to the index information.

With reference to the first possible implementation manner of the second aspect or the second aspect, in the ninth possible implementation manner of the second aspect, the terminal
A determination module configured to determine from the beam index information fifth beam index information to be used as a physical random access channel resource;
And an access module configured to perform random access according to the beam corresponding to the fifth beam index information.

With reference to the ninth possible implementation scheme of the second aspect, in the tenth possible implementation scheme of the second aspect, the decision module specifically specifies:
Select one part of the beam index information from the beam index information as the fifth beam index information, or a beam index that is in the beam index information and specified by the master base station or millimeter wave base station as a physical random access channel resource The information is configured to be determined as fifth beam index information.

With reference to the ninth possible implementation scheme of the second aspect, in the eleven possible implementation scheme of the second aspect,
The transmission module is further configured to transmit a random access preamble on the beam corresponding to the fifth beam index information;
The receiving module
It is further configured to receive a random access response message on a beam corresponding to the fifth beam index information or to receive a random access response message on a beam corresponding to the beam index information.

Referring to the tenth possible implementation manner of the second aspect, in the twelfth possible implementation manner of the second aspect, the random access response message includes the sixth beam guide information,
The transmission module is further configured to transmit a random access message on the beam corresponding to the sixth beam index information, the random access message includes an identifier of the terminal;
The receiving module
Further configured to receive a contention resolution message on a beam corresponding to the sixth beam index information, or to receive a contention resolution message on a beam corresponding to the beam index information;
The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

In the thirteenth possible implementation manner of the second aspect,
The receiving module is sounding reference signal configuration information for cells on the millimeter wave band and is further configured to receive sounding reference signal configuration information transmitted by a master base station or millimeter wave base station;
The transmission module is further configured to transmit the sounding reference signal on the beam corresponding to the beam index information according to the sounding reference signal configuration information.

According to a third aspect, a base station is provided, the base station including a bus and a processor, a memory, a transmitter, and a receiver connected to the bus, the memory storing a number of instructions. And some instructions are configured to be executed by the processor,
The processor is configured to configure beam index information corresponding to the millimeter wave band for the terminal, and the beam index information uses the beam corresponding to the beam index information, thereby the millimeter wave corresponding to the millimeter wave band. Used to instruct the terminal to communicate with the base station.

In the first possible implementation scheme of the third aspect,
The processor is further configured to control the transmitter to send a radio resource reconfiguration message or broadcast message including beam index information to the terminal, or the processor negotiates with the terminal to determine the beam index information Further configured to.

With reference to the first possible implementation scheme of the third aspect or the third aspect, in the second possible implementation scheme of the third aspect,
Processor
Control the receiver to receive a measurement report transmitted by the terminal, and the terminal performs RRM measurement according to the beam corresponding to the first beam index information included in the beam index information. A report sent by the terminal according to the measurement result of the RRM measurement, and controlling
In accordance with the measurement report, the millimeter wave base station for transmitting data to the terminal, and determining beam index information used to transmit data to the terminal are further configured.

With reference to the first possible implementation manner of the third aspect or the third aspect, in the third possible implementation manner of the third aspect,
The processor is further configured to control the transmitter to transmit the sounding reference signal configuration information of the cells on the millimeter wave band to the terminal, and the sounding reference signal configuration information is sounded on the beam corresponding to the beam index information. Used to instruct the terminal to transmit a reference signal.

With reference to the first possible implementation scheme of the third aspect or the third aspect, in the fourth possible implementation scheme of the third aspect,
The processor is further configured to control the transmitter to transmit uplink measurement configuration information to the millimeter wave base station, the uplink measurement configuration information includes second beam index information, and the uplink measurement configuration information is , Used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the second beam index information.

According to a fourth aspect, a base station is provided, the base station is
For a terminal, includes a configuration module configured to configure beam index information corresponding to a millimeter wave band, wherein the beam index information corresponds to the millimeter wave band by using a beam corresponding to the beam index information. Used to instruct the terminal to communicate with the millimeter wave base station.

In a first possible implementation manner of the fourth aspect, the base station
Further includes a transmission module configured to transmit a radio resource reconfiguration message or broadcast message including beam index information to the terminal, or the base station is configured to negotiate with the terminal to determine beam index information. Further includes a negotiation module.

With reference to the first possible implementation manner of the fourth aspect or the fourth aspect, in the second possible implementation manner of the fourth aspect, the base station
A receiving module configured to receive a measurement report transmitted by a terminal, wherein the terminal has performed RRM measurement according to a beam corresponding to the first beam index information included in the beam index information. Later, a receiving module, which is a report sent by the terminal according to the measurement result of the RRM measurement,
Further included is a millimeter wave base station for transmitting data to the terminal according to the measurement report, and a determination module configured to determine beam index information used to transmit data to the terminal.

With reference to the fourth possible aspect or the first possible implementation manner of the fourth aspect, in the third possible implementation manner of the fourth aspect,
The transmission module is further configured to transmit the sounding reference signal configuration information of the cells on the millimeter wave band to the terminal, wherein the sounding reference signal configuration information is transmitted on the beam corresponding to the beam index information. Used to command the terminal.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in the fourth possible implementation manner of the fourth aspect,
The transmission module is further configured to transmit uplink measurement configuration information to the millimeter wave base station, wherein the uplink measurement configuration information includes second beam index information, and the uplink measurement configuration information includes the second beam index information. Used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the information.

According to a fifth aspect, a base station is provided, the base station including a bus and a processor, a memory, a transmitter, and a receiver connected to the bus, the memory storing a number of instructions. And some instructions are configured to be executed by the processor,
The processor is configured to configure beam index information corresponding to the millimeter wave band for the terminal, and the beam index information uses the beam corresponding to the beam index information, thereby the millimeter wave corresponding to the millimeter wave band. Used to instruct the terminal to communicate with the base station.

In a first possible implementation manner of the fifth aspect, the processor is further configured to control the transmitter to transmit a radio resource reconfiguration message or broadcast message including beam index information to the terminal; Or The processor is further configured to negotiate with the terminal to determine beam index information.

With reference to the first possible implementation manner of the fifth aspect or the fifth aspect, in the second possible implementation manner of the fifth aspect, the processor comprises:
Control the receiver to receive a measurement report sent by the terminal, where the terminal performs RRM measurement according to the beam corresponding to the first beam index information included in the beam index information. A measurement report sent by the terminal according to the measurement result of the RRM measurement, and controlling
Controlling a transmitter to send a measurement report to a base station controller, where the measurement report is used to send data to the terminal, and a millimeter wave base station for sending data to the terminal And is further configured to control, used to instruct the base station controller to determine beam index information.

  Referring to the fifth aspect or the first possible implementation manner of the fifth aspect, in the third possible implementation manner of the fifth aspect, the processor comprises a sounding reference signal configuration of cells on the millimeter wave band Further configured to control the transmitter to transmit information to the terminal, the sounding reference signal configuration information is used to instruct the terminal to transmit a sounding reference signal on the beam corresponding to the beam index information. Is done.

In the fourth possible implementation scheme of the fifth aspect,
Processor
Controlling the receiver to receive a random access preamble transmitted by the terminal on the beam corresponding to the second beam index information used as a physical random access channel resource;
And further controlling the transmitter to transmit a random access response message on the beam corresponding to the second beam index information.

With reference to the fourth possible implementation scheme of the fifth aspect,
The random access response message includes the third beam guide information,
Processor
Controlling the receiver to receive a random access message on a beam corresponding to the third beam index information, wherein the random access message includes an identifier of the terminal;
Further comprising: controlling the transmitter to transmit a contention resolution message on a beam corresponding to the third beam index, wherein the contention resolution message includes an identifier of the terminal. ,
The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

With reference to any one of the fifth aspects, or the first to fifth possible implementations of the fifth aspect, in the sixth possible implementation of the fifth aspect,
Processor
Controlling a receiver to receive uplink measurement configuration information transmitted by a master base station or a base station controller, wherein the uplink measurement configuration information includes fourth beam index information; and ,
Measuring the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the fourth beam index information;
The power of the sounding reference signal, which is to control the transmitter to transmit the measurement result including the power obtained by the measurement to the base station controller, where the power of the sounding reference signal is a preset power threshold. When the value is greater than the value, the measurement result is used to instruct the base station controller to instruct the millimeter wave base station to prepare to communicate with the terminal, and further configured to control Is done.

According to a sixth aspect, a base station is provided, the base station is
For a terminal, includes a configuration module configured to configure beam index information corresponding to a millimeter wave band, wherein the beam index information corresponds to the millimeter wave band by using a beam corresponding to the beam index information. Used to instruct the terminal to communicate with the millimeter wave base station.

In the first possible implementation scheme of the sixth aspect,
The base station further includes a transmission module configured to transmit a radio resource reconfiguration message or broadcast message including beam index information to the terminal, or the base station negotiates with the terminal to determine the beam index information A negotiation module configured as described above.

With reference to the first possible implementation manner of the sixth aspect or the sixth aspect, in the second possible implementation manner of the sixth aspect, the base station
A receiving module configured to receive a measurement report transmitted by a terminal, wherein the terminal has performed RRM measurement according to a beam corresponding to the first beam index information included in the beam index information. And further including a receiving module, which is a measurement report sent by the terminal according to the measurement result of the RRM measurement,
The transmission module is further configured to transmit a measurement report to the base station controller, the measurement report includes a millimeter wave base station for transmitting data to the terminal, and a beam index used to transmit data to the terminal Used to instruct the base station controller to determine information.

With reference to the first possible implementation manner of the sixth aspect or the sixth aspect, in the third possible implementation manner of the sixth aspect,
The transmission module is further configured to transmit the sounding reference signal configuration information of the cells on the millimeter wave band to the terminal, wherein the sounding reference signal configuration information is transmitted on the beam corresponding to the beam index information. Used to command the terminal.

In the fourth possible implementation scheme of the sixth aspect,
The receiving module is further configured to receive a random access preamble transmitted by the terminal on a beam corresponding to the second beam index information used as a physical random access channel resource;
The transmission module is further configured to transmit a random access response message on the beam corresponding to the second beam index information.

Referring to the fourth possible implementation manner of the sixth aspect, in the fifth possible implementation manner of the sixth aspect, the random access response message includes the third beam guide information,
The receiving module is further configured to receive a random access message on a beam corresponding to the third beam index information, the random access message including a terminal identifier;
The transmission module is further configured to transmit a contention resolution message on the beam corresponding to the third beam index, the contention resolution message including an identifier of the terminal;
The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

With reference to any one of the sixth aspects, or the first to fifth possible implementations of the sixth aspect, in the sixth possible implementation of the sixth aspect,
The receiving module is further configured to receive uplink measurement configuration information transmitted by a master base station or base station controller, wherein the uplink measurement configuration information includes fourth beam index information;
The base station further includes a measurement module configured to measure the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the fourth beam index information;
The transmission module is the power of the sounding reference signal and is further configured to transmit a measurement result including the power obtained by the measurement, and when the power of the sounding reference signal is greater than a preset power threshold, The measurement results are used to instruct the base station controller to instruct the millimeter wave base station to prepare to communicate with the terminal.

According to a seventh aspect, a base station controller is provided, the base station controller including a bus and a processor, a memory, a transmitter, and a receiver connected to the bus, the memory storing a number of instructions. And some instructions are configured to be executed by a processor,
Processor
Controlling a transmitter to transmit uplink measurement configuration information to a millimeter wave base station, where the uplink measurement configuration information includes beam index information, and the uplink measurement configuration information corresponds to the beam index information. Used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam; and
Controlling the receiver to receive a measurement result transmitted by the millimeter wave base station, which is the power of the sounding reference signal, including the power obtained by the measurement;
Instructing the millimeter wave base station to prepare to communicate with the terminal when the power of the sounding reference signal is greater than a preset power threshold;
The terminal communicates with the millimeter wave base station corresponding to the millimeter wave band by using the beam index information corresponding to the millimeter wave band.

In a first possible implementation manner of the seventh aspect, the processor
Controlling the receiver to receive a measurement report transmitted by the millimeter wave base station, wherein the terminal reports the RRM according to the beam corresponding to the first beam index information included in the beam index information. Controlling the measurement report sent by the terminal according to the measurement result of the RRM measurement after performing the measurement,
In accordance with the measurement report, the millimeter wave base station for transmitting data to the terminal, and determining beam index information used to transmit data to the terminal are further configured.

According to an eighth aspect, a base station controller is provided, the base station controller comprising:
A transmission module configured to transmit uplink measurement configuration information to a millimeter wave base station, wherein the uplink measurement configuration information includes beam index information, and the uplink measurement configuration information includes a beam corresponding to the beam index information. Above, a transmission module used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal;
A receiving module configured to receive a measurement result transmitted by the millimeter wave base station, the power of the sounding reference signal, including the power obtained by the measurement;
An instruction module configured to instruct the millimeter wave base station to prepare to communicate with the terminal when the power of the sounding reference signal is greater than a preset power threshold;
The terminal communicates with the millimeter wave base station corresponding to the millimeter wave band by using the beam index information corresponding to the millimeter wave band.

In the first possible implementation scheme of the eighth aspect,
The receiving module is further configured to receive a measurement report transmitted by the millimeter wave base station, and the measurement report is received by the terminal according to a beam corresponding to the first beam index information included in the beam index information. A measurement report sent by the terminal according to the measurement result of the RRM measurement after being implemented,
The apparatus further includes a millimeter wave base station for transmitting data to the terminal and a determination module configured to determine beam index information used to transmit data to the terminal according to the measurement report.

According to a ninth aspect, there is provided a millimeter wave cellular communication method comprising:
Acquiring beam index information corresponding to a millimeter wave band by a terminal;
Communicating with a millimeter wave base station corresponding to a millimeter wave band by using a beam corresponding to the beam index information by a terminal.

In a first possible implementation manner of the ninth aspect, the step of obtaining, by the terminal, beam index information corresponding to a millimeter wave band,
Receiving a radio resource reconfiguration message or broadcast message transmitted by a master base station or millimeter wave base station and obtaining beam index information included in the radio resource reconfiguration message or broadcast message; or master base station or millimeter wave Including negotiating with the base station and agreeing on beam index information,
The master base station and the millimeter wave base station are the same base station or different base stations.

With reference to the first possible implementation manner of the ninth aspect, in the second possible implementation manner of the ninth aspect, the millimeter wave band is obtained by using a beam corresponding to the beam index information by the terminal. Communicating with the millimeter wave base station corresponding to
Select a beam corresponding to some or all of the beam index information in the beam index information and communicate with the millimeter wave base station, or in the beam index information and specified by the master base station or millimeter wave base station Determining first beam index information and communicating with the millimeter wave base station according to the beam corresponding to the first beam index information.

  Referring to the ninth aspect, or the first or second possible implementation manner of the ninth aspect, in the third possible implementation manner of the ninth aspect, each portion of the beam index information is one Corresponds to information about precoding codebook or information about one group of antenna weights, or each beam index corresponds to information about multiple precoding codebooks or information about multiple groups of antenna weights And the information about each precoding codebook or each group of antenna weights uniquely determines the beam.

Referring to the ninth aspect, or the first or second possible implementation manner of the ninth aspect, in the fourth possible implementation manner of the ninth aspect, each portion of the beam index information is one Correspond to the coverage area of a sector or one cell, or each part of the beam index information corresponds to a part of the coverage area of one sector or one cell,
The beam index information is 1-level index information or N-level index information, where N is an integer and N ≧ 2,
When the beam index information is N-level index information, the i-th level index information in the beam index information is associated with the (i + 1) -th level index information, and the (i + 1) -th level index information is associated with the index information. The coverage area of the corresponding beam is not larger than the coverage area of the beam corresponding to the i-th level index information, i is an integer, and 2 ≦ i ≦ N.

With reference to the ninth aspect or the first possible implementation manner of the ninth aspect, in the fifth possible implementation manner of the ninth aspect, the beam index information is used for radio resource management RRM measurement Including second beam index information, the method comprises:
The terminal performs RRM measurement according to the beam corresponding to the second beam index information and obtains the first measurement result, wherein the first measurement result is the reference signal received power RSRP and / or the reference Including signal reception quality RSRQ; and
Transmitting a first measurement report by a terminal to a master base station or a millimeter wave base station according to a first measurement result, wherein the first measurement report includes the following information: highest RSRP and / or highest Beam index information with RSRQ, highest RSRP and / or RSRP measurement result on beam corresponding to beam index information with highest RSRQ and / or RSRQ measurement result, beam index with highest RSRP and / or highest RSRQ Frequency information where the information is located, serving cell information associated with beam index information with highest RSRP and / or highest RSRQ, or neighboring cell information associated with beam index information with highest RSRP and / or highest RSRQ Including at least one of the And further include
Serving cell information or neighboring cell information is indicated by using a physical cell identifier PCI and / or cell global identification information CGI.

Referring to the fifth possible implementation scheme of the ninth aspect, in the sixth possible implementation scheme of the ninth aspect, the beam index information is the third beam index information used for candidate RRM measurement. And further comprising:
When the RSRP included in the first measurement result is smaller than a preconfigured threshold and / or when the RSRQ included in the first measurement result is smaller than the preconfigured threshold, the terminal The method further includes initiating an RRM measurement according to the beam corresponding to the third beam index information.

With reference to the fifth possible implementation scheme of the ninth aspect, in the seventh possible implementation scheme of the ninth aspect, the beam index information is the fourth beam index information used for intra-frequency measurements. And further comprising:
By the terminal, obtaining measurement gap period information associated with the fourth beam index information;
Further comprising, by the terminal, performing an intra-frequency measurement on the millimeter wave band according to the beam corresponding to the fourth beam index information within the measurement gap indicated by the measurement gap period information.

Referring to the fifth possible implementation manner of the ninth aspect, in the eighth possible implementation manner of the ninth aspect, the millimeter wave band is obtained by using the beam corresponding to the beam index information by the terminal. Communicating with the millimeter wave base station corresponding to
Communicating with the millimeter wave base station on the beam corresponding to the beam index information having the highest RSRP and / or highest RSRQ by the terminal.

Referring to the ninth aspect or the first possible implementation manner of the ninth aspect, in the ninth possible implementation manner of the ninth aspect, the method comprises:
Determining, from the beam index information, fifth beam index information used as a physical random access channel resource by the terminal;
And performing random access according to the beam corresponding to the fifth beam index information by the terminal.

Referring to the ninth possible implementation scheme of the ninth aspect, in the tenth possible implementation scheme of the ninth aspect, the terminal uses the fifth index used as physical random access channel resource from the beam index information. The step of determining the beam index information of
Selecting a portion of the beam index information from the beam index information as the fifth beam index information, or a beam index in the beam index information and designated as a physical random access channel resource by the master base station or millimeter wave base station Determining the information as fifth beam index information.

With reference to the ninth possible implementation scheme of the ninth aspect, in the eleventh possible implementation scheme of the ninth aspect, the terminal performs random access according to the beam corresponding to the fifth beam index information. The steps are
Transmitting a random access preamble on the beam corresponding to the fifth beam index information;
Receiving a random access response message on the beam corresponding to the fifth beam index information or receiving a random access response message on the beam corresponding to the beam index information.

Referring to the tenth possible implementation manner of the ninth aspect, in the twelfth possible implementation manner of the ninth aspect, the random access response message includes sixth beam guide information, and the method comprises:
Transmitting by a terminal a random access message on a beam corresponding to the sixth beam index information, wherein the random access message includes an identifier of the terminal;
The terminal receives a contention resolution message on the beam corresponding to the sixth beam index, or receives a contention resolution message on the beam corresponding to the beam index information by the terminal, wherein the contention resolution message is Further including a terminal identifier,
The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

In a thirteenth possible implementation manner of the ninth aspect, the method comprises:
Receiving sounding reference signal configuration information transmitted by a master base station or a millimeter wave base station, which is sounding reference signal configuration information of a cell on a millimeter wave band by a terminal;
Further comprising, by the terminal, transmitting a sounding reference signal on the beam corresponding to the beam index information according to the sounding reference signal configuration information.

According to a tenth aspect, a millimeter wave cellular communication method is provided, the method comprising:
A step of configuring beam index information corresponding to a millimeter wave band for a terminal by a master base station, wherein the beam index information corresponds to the millimeter wave band by using a beam corresponding to the beam index information. Used to instruct the terminal to communicate with the millimeter wave base station.

In a first possible implementation manner of the tenth aspect, the step of configuring beam index information corresponding to the millimeter wave band for the terminal by the master base station comprises:
Transmitting a radio resource reconfiguration message or broadcast message including beam index information to the terminal, or negotiating with the terminal to determine beam index information.

With reference to the tenth aspect or the first possible implementation manner of the tenth aspect, in the second possible implementation manner of the tenth aspect, the method comprises:
A step of receiving a measurement report transmitted by a terminal by a master base station, after the terminal performs RRM measurement according to a beam corresponding to the first beam index information included in the beam index information. A measurement report sent by the terminal according to the measurement result of the RRM measurement, steps;
Determining, by the master base station, a millimeter wave base station for transmitting data to the terminal according to the measurement report, and beam index information used for transmitting data to the terminal.

With reference to the tenth aspect or the first possible implementation manner of the tenth aspect, in the third possible implementation manner of the tenth aspect, the method comprises:
The master base station transmits the sounding reference signal configuration information of the cells on the millimeter wave band to the terminal, and the sounding reference signal configuration information is transmitted on the beam corresponding to the beam index information. The method further includes a step used to instruct the terminal.

With reference to the tenth aspect or the first possible implementation manner of the tenth aspect, in the fourth possible implementation manner of the tenth aspect, the method comprises:
A step of transmitting uplink measurement configuration information to a millimeter wave base station by a master base station, wherein the uplink measurement configuration information includes second beam index information, and the uplink measurement configuration information includes a second beam index; Used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the information.

According to an eleventh aspect, there is provided a millimeter wave cellular communication method comprising:
A step of configuring the beam index information corresponding to the millimeter wave band for the terminal by the millimeter wave base station, and the beam index information corresponds to the millimeter wave band by using the beam corresponding to the beam index information. Used to instruct the terminal to communicate with the millimeter wave base station.

In a first possible implementation manner of the eleventh aspect, the step of configuring the beam index information corresponding to the millimeter wave band for the terminal by the millimeter wave base station comprises:
Transmitting a radio resource reconfiguration message or broadcast message including beam index information to the terminal, or negotiating with the terminal to determine beam index information.

Referring to the eleventh aspect or the first possible implementation manner of the eleventh aspect, in the second possible implementation manner of the eleventh aspect, the method comprises:
Receiving a measurement report transmitted by a terminal by a millimeter wave base station, wherein the measurement report is performed by the terminal according to a beam corresponding to the first beam index information included in the beam index information; And a measurement report sent by the terminal according to the measurement result of the RRM measurement, and
Transmitting a measurement report by a millimeter wave base station to a base station controller, wherein the measurement report is a millimeter wave base station for transmitting data to the terminal, and a beam used to transmit data to the terminal Used to instruct the base station controller to determine index information.

With reference to the eleventh aspect or the first possible implementation manner of the eleventh aspect, in the third possible implementation manner of the eleventh aspect, the method comprises:
The millimeter wave base station transmits the sounding reference signal configuration information of the cell on the millimeter wave band to the terminal, and the sounding reference signal configuration information transmits the sounding reference signal on the beam corresponding to the beam index information. Is further used to instruct the terminal to:

In a fourth possible implementation manner of the eleventh aspect, the method comprises:
Receiving, by a millimeter wave base station, a random access preamble transmitted by a terminal on a beam corresponding to second beam index information used as a physical random access channel resource;
Transmitting a random access response message on the beam corresponding to the second beam index information by the millimeter wave base station.

Referring to the fourth possible implementation manner of the eleventh aspect, in the fifth possible implementation manner of the eleventh aspect, the random access response message includes the third beam guide information, and the method comprises:
Receiving a random access message by a millimeter wave base station on a beam corresponding to the third beam index information, the random access message including an identifier of the terminal;
Further comprising, by the millimeter wave base station, transmitting a contention resolution message on a beam corresponding to the third beam index, wherein the contention resolution message includes a terminal identifier;
The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

With reference to any one of the eleventh aspects, or first to fifth possible implementation manners of the eleventh aspect, in a sixth possible implementation manner of the eleventh aspect, the method comprises:
Receiving, by a millimeter wave base station, uplink measurement configuration information transmitted by a master base station or a base station controller, wherein the uplink measurement configuration information includes fourth beam index information;
Measuring the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the fourth beam index information by the millimeter wave base station;
Transmitting a measurement result including the power obtained from the measurement by the millimeter wave base station to the base station controller, wherein the power threshold of the sounding reference signal is preset. The measurement result is used to instruct the base station controller to instruct the millimeter wave base station to prepare to communicate with the terminal.

According to a twelfth aspect, there is provided a millimeter wave cellular communication method comprising:
Transmitting uplink measurement configuration information to a millimeter wave base station by a base station controller, wherein the uplink measurement configuration information includes beam index information, and the uplink measurement configuration information is on a beam corresponding to the beam index information; Used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal, and
Receiving, by the base station controller, a measurement result transmitted by the millimeter wave base station, which is the power of the sounding reference signal, including the power obtained by the measurement;
Instructing the millimeter wave base station to prepare to communicate with the terminal by the base station controller when the power of the sounding reference signal is greater than a preset power threshold;
The terminal communicates with the millimeter wave base station corresponding to the millimeter wave band by using the beam index information corresponding to the millimeter wave band.

In a first possible implementation manner of the twelfth aspect, the method comprises:
Receiving a measurement report transmitted by the millimeter wave base station by the base station controller, wherein the measurement report is received by the terminal according to the beam corresponding to the first beam index information included in the beam index information; A measurement report sent by the terminal according to the measurement result of the RRM measurement after performing the steps;
Determining, by the base station controller, a millimeter wave base station for transmitting data to the terminal and beam index information used for transmitting data to the terminal according to the measurement report.

  The technical solutions provided in the embodiments of the present invention provide the following beneficial effects.

  It solves the problem in the prior art that the available bandwidth when the terminal performs cellular communication is relatively small, expands the frequency range of the terminal communication, increases the data transmission rate of the terminal, the terminal and millimeter wave base To reduce signal fading and distortion during millimeter wave communication with the station and reduce interference between users on the same channel, at least one portion of the beam index information corresponding to at least one millimeter wave band Communication with a millimeter wave base station corresponding to at least one millimeter wave band is performed by using the acquired beam corresponding to at least a portion of the beam index information.

  To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show only some embodiments of the present invention, and those skilled in the art can further derive other drawings from these accompanying drawings without creative efforts. .

FIG. 3 is a block diagram of a terminal according to an embodiment of the present invention. FIG. 3 is a block diagram of a terminal according to an embodiment of the present invention. FIG. 3 is a block diagram of a base station according to an embodiment of the present invention. FIG. 3 is a block diagram of a base station according to an embodiment of the present invention. FIG. 3 is a block diagram of a base station according to an embodiment of the present invention. FIG. 3 is a block diagram of a base station according to an embodiment of the present invention. FIG. 3 is a block diagram of a base station controller according to an embodiment of the present invention. FIG. 3 is a block diagram of a base station controller according to an embodiment of the present invention. 2 is a method flowchart of a millimeter wave cellular communication method according to an embodiment of the present invention; 2 is a method flowchart of a millimeter wave cellular communication method according to an embodiment of the present invention; 2 is a method flowchart of a millimeter wave cellular communication method according to an embodiment of the present invention; 2 is a method flowchart of a millimeter wave cellular communication method according to an embodiment of the present invention;

  In order to make the objects, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

  Referring to FIG. 1, FIG. 1 shows a block diagram of a terminal according to an embodiment of the present invention. The terminal 100 includes a bus 105, a processor 101, a memory 102, a transmitter 103, and a receiver 104 connected to the bus. Memory 102 is configured to store a number of instructions, and some instructions are configured to be executed by processor 101.

The processor 101 controls the receiver 104 to obtain at least one portion of beam index information corresponding to at least one millimeter wave band; and
Communicating with a millimeter wave base station corresponding to at least one millimeter wave band by using a beam corresponding to at least a portion of the beam index information.

In some cases, processor 101 controls receiver 104 to receive a radio resource reconfiguration message or broadcast message transmitted by a master base station or millimeter wave base station, and is included in the radio resource reconfiguration message or broadcast message. Further configured to obtain at least one portion of beam index information to be transmitted, or processor 101 negotiates with a master base station or millimeter wave base station to transmit to agree on at least one portion of beam index information Further configured to control the machine 103 and the receiver 104.

  The master base station and millimeter wave base station may be the same base station or different base stations, and millimeter waves in various bands may correspond to the same millimeter wave base station or different millimeter wave base stations.

The processor 101 is further configured to select a beam corresponding to some or all of the beam index information in at least a portion of the beam index information and communicate with the millimeter wave base station, or the processor 101 Determine first beam index information within at least one part of the beam index information and specified by the master base station or millimeter wave base station, and communicate with the millimeter wave base station according to the beam corresponding to the first beam index information And is further configured to control the transmitter and the receiver.

  Each part of the beam index information corresponds to information about one precoding codebook or information about one group of antenna weights, or each of the beam indexes is information about multiple precoding codebooks or antennas Corresponding to information about multiple groups of weights, the information about each group of precoding codebooks or antenna weights uniquely determines the beam.

  The beam index information is further associated with the beam characteristic information. The master base station transmits different beam determination characteristic information on the beam, so that the UE identifies the different beams according to the different beam characteristic information. The master base station uses different reference signal sequences on different beams or broadcasts beam index information for different beams on the beam. The UE may uniquely determine the determined beam according to the beam index information and characteristic information of the beam. The beam index information may also be used as a virtual cell identity, i.e., the cell is further divided into various sectors or sub-sectors according to multiple relatively wide beams. The function and use of the beam index information in the following embodiments of the present invention is the same as those described in this embodiment, and details are not described again below.

  Each part of the beam index information corresponds to a coverage area of one sector or one cell, or each part of the beam index information corresponds to a part of the coverage area of one sector or one cell. The beam index information is 1-level index information or N-level index information, where N is an integer and N ≧ 2. When the beam index information is N-level index information, the i-th level index information in the beam index information is associated with at least one part of the (i + 1) -th level index information, and the (i + 1) -th level The beam coverage area corresponding to the index information is not larger than the beam coverage area corresponding to the i-th level index information, and i is an integer, and 2 ≦ i ≦ N.

  When at least a portion of the beam index information selected or determined by the processor 101 is the i-th level index information, the transmitter 103 and the receiver 104 use the beam represented by the i-th level index information. May communicate with the millimeter wave base station or may communicate with the millimeter wave base station by using a beam corresponding to at least a portion of the (i + 1) th level index information. .

  In this embodiment of the present invention, the millimeter wave band is configured for the terminal as a service band, and the terminal is configured to expand the frequency range of terminal communication and to increase the data transmission rate of the terminal. Communicate with millimeter wave base station above. The steps in which the master base station configures a cell corresponding to the millimeter wave band for the terminal and the terminal communicates with the millimeter wave base station are as follows.

  (1) User equipment (English: User Equipment, abbreviated as UE) performs downlink radio resource management (English: Radio Resource Management, abbreviated as RRM) measurements on the millimeter wave band, and the cell reference of millimeter wave band Measure signal reception power of signal (English: cell reference signal, abbreviated CRS) or channel quality indicator reference signal (English: Channel State Indicator Reference Signal, abbreviated CSI-RS) to master base station or millimeter wave base station Send the first measurement report. The master base station, according to the first measurement report of the UE, has entered the coverage area of the millimeter wave base station, and one or more cells corresponding to the millimeter wave frequency have one or more secondary It judges that it can be comprised for UE as a cell (English: Secondary Cell, SCell for short).

The RRM measurement in this specification refers to a measurement used for mobility management, and is a measurement method filtered by a radio resource control (English: Radio Resource Control, abbreviated as RRC) layer. For example, the filtering method used in LTE systems is F _n = (1−a) · F _n−1 + a · M _n , where F _n is the latest filtered measurement result and the measurement report Is used to evaluate the criteria for triggering _Fn−1 is the previously calculated filtered measurement result, M _n is the latest measurement result in the physical layer, and a is the various measurement requirements Is a coefficient determined according to

  Prior to this, the master base station or millimeter wave base station configures one or more millimeter wave band measurements for the UE. The configuration information includes at least configuration information such as a frequency range of the millimeter wave band, a CSI-RS port number, a subframe, and a scrambling code. As a result, the UE performs measurement and reporting according to the configuration information.

  As an alternative, the master base station or millimeter wave base station is in the existing band with a relatively low frequency, such as the UE's first measurement report and / or Long Term Evolution (LTE) band. The UE may determine that the UE has entered the coverage area of the millimeter wave base station according to the UE location information. Existing bands with relatively low frequencies are provided mainly by master base stations or millimeter wave base stations, the latter supporting both existing and millimeter wave bands where millimeter wave base stations have relatively low frequencies Need.

  (2) The master base station transmits a request message to the millimeter wave base station or the base station controller, and requests to configure the millimeter wave base station for the UE as a SCell.

  The master base station includes at least UE cell radio network temporary identifier (English: Cell Radio Network Temporary Identifier, C-RNTI for short), UE radio bearer (English: Radio Bearer, abbreviated for RB) configuration information, master base station Radio resource configuration information, identification information of one or more millimeter wave base stations, and the like are added to the request message.

  One or more millimeter wave base stations may have the same frequency range, and the frequencies provided by multiple millimeter wave base stations may form the same SCell. In this case, the frequencies provided by multiple millimeter-wave base stations are the same physical cell identifier (English: Physical Cell Identification, PCI for short) and the same evolved cell global identification information (English: Evolved Cell Global Identification, ECGI for short). ). A plurality of millimeter wave base stations transmit the same primary synchronization signal (English: Primary Synchronization Signal, abbreviated as PSS) and the same secondary synchronization signal (English: Secondary Synchronization Signal, abbreviated as SSS). Alternatively, multiple millimeter wave base stations may transmit different PSSs and different SSSs to distinguish different millimeter wave base stations. The frequencies provided by multiple millimeter wave base stations may have different CSI-RS port configurations, so that different millimeter wave base stations can be distinguished accordingly. Alternatively, the frequencies provided by multiple millimeter wave base stations may have the same CSI-RS port configuration, and millimeter wave base stations are not distinguished.

  One or more millimeter wave base stations may have different frequency ranges, and the frequencies provided by the multiple millimeter wave base stations are used individually as different SCells. The frequencies provided by multiple millimeter wave base stations have different physical cell identifiers and different evolved cell global identification information, and multiple millimeter wave base stations transmit different PSSs and different SSSs.

  (3) The millimeter wave base station or the base station controller performs admission control, agrees to configure a cell corresponding to at least one millimeter wave band as a SCell for the UE, and sends a response message to the master base station. Send.

  The response message may carry the following information: Sounding Reference Signal (SRS) configuration information of the UE and C-RNTI allocated to the UE. On the other hand, the SRS configuration information may be uniquely configured by the master base station, and as a result, the millimeter wave base station does not provide the SRS configuration information. The millimeter wave base station may also not provide C-RNTI configuration information, so that the UE uses the C-RNTI allocated by the PCell in both the PCell and the SCell.

  The response message further carries at least the following information: a frequency range of millimeter waves, common radio resource configuration information, and dedicated radio resource configuration information.

  A millimeter wave base station or base station controller sends a notification message to all millimeter wave base stations in the cluster, so that all millimeter wave base stations in the cluster measure the UE's SRS And prepares resources according to measurements performed by all millimeter wave base stations or notification messages of the base station controller to serve the UE.

  (4) The master base station or the millimeter wave base station transmits a radio resource reconfiguration message to the UE, and configures a SCell for the UE.

  The radio resource reconfiguration message carries at least radio resource configuration information related to the millimeter wave base station, and may further carry radio resource configuration information of the master base station.

  (5) The UE performs radio resource configuration and transmits a radio resource reconfiguration completion message to the master base station.

  (6) The UE performs a random access process with one or more millimeter wave base stations to implement uplink synchronization with one or more millimeter wave base stations.

  (7) The millimeter wave base station or base station controller determines one or more millimeter wave base stations that communicate with the UE within a specified time according to the UE's SRS measurements.

  In some cases, the millimeter wave base station or the base station controller may notify the master base station of identification information of the millimeter wave base station.

  (8) The one or more millimeter wave base stations allocate resources to the UE and perform data communication including downlink communication and / or uplink communication with the UE.

  (9) The millimeter wave base station measures the SRS of the UE and determines whether or not to continue serving the UE.

  Due to UE movement, one or more millimeter wave base stations may no longer be suitable for data communication with the UE. For example, one or more millimeter wave base stations stop serving the UE when the measured signal strength of the UE's SRS is less than a specified threshold Judge that it is necessary.

  (10) The millimeter wave base station or base station controller sends a first measurement report and / or message to the master base station that determines whether to continue serving the UE.

  A millimeter wave base station determined by the millimeter wave base station or base station controller to continue serving the UE does not need to send a message to the master base station, and steps 10-13 are not required.

  (11) The master base station decides to update the set of millimeter wave base stations serving the UE.

  (12) The master base station transmits the identification information of the millimeter wave base station that does not need to serve the UE to the millimeter wave base station or the base station controller.

  (13) The millimeter wave base station or the base station controller may perform downlink communication and / or uplink communication with one or more millimeter wave base stations allocating resources to the UE according to the measurement result of the SRS of the UE. Are determined dynamically.

  Millimeter wave band signals have a relatively large free space attenuation, and factors such as air absorption and absorption and scattering of rain, fog, buildings, and other objects also have a relatively large impact on the millimeter wave band. . Thus, in this embodiment of the invention, the decision beam index information is set for the terminal, and in the transmission process due to factors such as space loss and multipath effect when the terminal and the millimeter wave base station perform millimeter wave communication. In order to reduce the signal fading and distortion of the induced radio signal and reduce the interference between users on the same channel, the terminal performs communication on the beam corresponding to the determined beam index information.

  A terminal may perform random access, RRM measurement, transmission of a sounding reference signal SRS, and the like by using at least one portion of beam index information corresponding to at least one millimeter wave band. Refer to the following steps for details.

  The terminal selects a beam corresponding to some or all of the beam index information in at least one portion of the beam index information and communicates with the millimeter wave base station. Alternatively, the terminal determines first beam index information that is in at least one part of the beam index information and is specified by the master base station or millimeter wave base station, and according to the beam corresponding to the first beam index information May communicate with millimeter wave base stations.

  The terminal itself may select a beam corresponding to a part or all of at least one part of the beam index information to receive and transmit data. Alternatively, the master base station or millimeter wave base station specifies one or more parts of beam index information within at least one part of the beam index information, and the terminal is specified by the master base station or millimeter wave base station Data is received and transmitted according to the beam index information.

  In addition, the terminal may further perform random access, RRM measurement, transmission of a sounding reference signal SRS, and the like by using at least a portion of beam index information corresponding to at least one millimeter wave band. Details are as follows.

  In some cases, at least a portion of the beam index information includes second beam index information used for radio resource management RRM measurements.

The processor 101
Further configured to perform an RRM measurement according to a beam corresponding to the second beam index information to obtain a first measurement result, the first measurement result being a reference signal received power RSRP and / or a reference signal reception Includes quality RSRQ.

  In a millimeter wave cell, the UE may move quickly between different beams. Therefore, the requirements for RRM measurements used for beam management may be more stringent than those in existing LTE systems, e.g., evaluated every 10 milliseconds to determine if measurement reporting criteria are met. To be implemented. Furthermore, in a broad sense, RRM measurements used for beam management of millimeter wave cells may refer to measurements performed in a beam training scheme. For example, the master base station and the UE each transmit and receive measurement signals on multiple beams within the cell range to find the best matched beam pair. When communication is performed between such pairs that transmit and receive beams, the reception efficiency is highest and the transmitted data is the most reliable. Measurements in such cases may be filtered by the RRC layer and the measurement requirements are more stringent, or measurements in such cases do not need to be filtered by the RRC layer and the current measurement results are directly used. In this way, a better transmission effect may be realized between the master base station and the UE by using smaller transmission power. The meaning of RRM measurements for beam management of millimeter wave cells in the following embodiments of the present invention is the same as those described in this embodiment, and details are not described again below.

  The processor 101 is further configured to control the transmitter 103 to transmit the first measurement report to the master base station or the millimeter wave base station according to the first measurement result, and the first measurement report is: Information: at least a portion of beam index information with the highest RSRP and / or highest RSRQ, RSRP measurement results on the beam corresponding to at least a portion of the beam index information with the highest RSRP and / or highest RSRQ, and / or Or at least one portion of the beam index information having the highest RSRP and / or highest RSRQ, the frequency information where the highest RSRP and / or the highest RSRQ is located, or at least one portion of the beam index information having the highest RSRQ. Serving cell information, or highest RSRP and / or most There comprising at least one of neighbor cell information associated with at least a portion of the beam index information having RSRQ.

  Serving cell information or neighboring cell information is indicated by using a physical cell identifier PCI and / or cell global identification information CGI.

  RRM measurements are performed with multiple pre-configured fixed beam directions / widths. The UE reports RSRP / RSRQ measured on one or more beams with the best signal quality, and corresponding beam index information is included during the report, so that the master base station Schedule according to the measurement report.

  Alternatively, the UE may adaptively choose to perform measurements on multiple beams and choose to report RSRP / RSRQ information on one or more beams with the best signal quality. Beam index information selected by the UE, eg, information about multiple antenna weights, is included during the report.

  In some cases, at least a portion of the beam index information further includes third beam index information used for candidate RRM measurements.

  Processor 101 determines when RSRP included in the first measurement result is less than a preconfigured threshold and / or RSRQ included in the first measurement result is less than a preconfigured threshold And further configured to control the transmitter 103 and the receiver 104 to start performing RRM measurement according to the beam corresponding to the third beam index information.

  A UE may not measure a signal on another beam if the RSRP / RSRQ obtained by measurement by the UE on a beam corresponding to a portion of the beam index information is greater than a preset threshold Or, from the same cell, the signal on another beam may be measured by using a longer period to select a relatively broader better beam range as the data communication range.

  Alternatively, the UE may select multiple relatively wide beam ranges with both relatively good signal quality and relatively good spatial separation to perform the measurement. The measurement periods can be the same or can be different to support simultaneous operation of multiple beams.

  In some cases, at least a portion of the beam index information further includes fourth beam index information used for intra-frequency measurements.

The processor 101
Controlling the transmitter 103 and the receiver 104 to obtain measurement gap period information associated with the fourth beam index information;
And performing in-frequency measurements on at least one millimeter wave band according to the beam corresponding to the fourth beam index information within the measurement gap indicated by the measurement gap period information.

  In order to measure adjacent channel synchronization channel signal (English: Synchronization Channel, abbreviated as SCH), common reference signal (English: Common Reference String, abbreviated as CRS), CSI-RS, etc. When the UE needs to have more antennas and radio frequency (RF for short) links, multiple serving cells are needed, even for in-frequency measurements, when it needs to be adjusted to the corresponding directional angle. Unable to schedule a UE in the beam direction. Thus, the master base station or base station controller may preconfigure measurement gap period information for the terminal and associate the measurement gap period information with beam index information used for intra-frequency measurements. In-frequency measurements are performed only within the measurement gap indicated by the measurement gap period information.

  In this embodiment, a trigger condition may be further set for an event for transmitting the first measurement report. For example, when the RSRP on the beam corresponding to one part of the beam index information is smaller than a preset value, the RSRP on the beam corresponding to another part of the beam index information is still less than the preset value. High, the first measurement report is triggered.

  In some cases, the processor 101 is further configured to communicate with the millimeter wave base station on a beam corresponding to at least a portion of the beam index information having the highest RSRP and / or highest RSRQ.

  Referring to the RRM measurement method shown in this step, when communicating with a millimeter wave base station, the terminal is on a beam corresponding to at least a portion of the beam index information having the highest RSRP and / or highest RSRQ. Communication may be carried out.

In some cases, processor 101
Further configured to determine fifth beam index information to be used as a physical random access channel resource from at least a portion of the beam index information, and to perform random access according to a beam corresponding to the fifth beam index information .

The processor 101 is further configured to select one portion of the beam index information from at least one portion of the beam index information as the fifth beam index information, or the processor 101 is within at least one portion of the beam index information. Yes, further configured to determine beam index information designated by the master base station or millimeter wave base station and used as a physical random access channel resource as the fifth beam index information.

In some cases, processor 101
Controlling the transmitter 103 to transmit a random access preamble on the beam corresponding to the fifth beam index information;
Control receiver 104 to receive a random access response message on a beam corresponding to the fifth beam index information or to receive a random access response message on a beam corresponding to at least a portion of the beam index information And is further configured to do that.

The random access process may be contention based random access or non-contention based random access. In the non-contention based random access process, the master base station or the base station controller allocates the millimeter wave base station for access and the beam index information used for access, that is, the fifth beam index information to the terminal. The terminal transmits a random access preamble (preamble, ie, msg1) on the beam corresponding to the fifth beam index information. After the millimeter wave base station in the direction of the beam corresponding to the fifth beam index information receives msg1, the millimeter wave base station is assigned to the terminal by the master base station or the base station controller for random access. The millimeter wave base station transmits a random access response message (msg2) on the beam corresponding to the fifth beam index information. The terminal receives a random access response message on the beam corresponding to the fifth beam index information. The random access response message may include information about at least one UE. These UEs send msg1 by using the same time frequency domain resource. According to identifiers such as random access-radio network temporary identifier (abbreviated as RA-RNTI) on the physical downlink control channel (English: Physical Downlink Control Channel, abbreviated as PDCCH) Determine whether msg2 contains information about the UE. When the time-frequency resource used when the UE transmits a random access preamble and the RA-RNTI match, the UE determines that the msg2 may include information about the UE. Further, depending on whether the preamble used when the UE transmits msg1 matches the preamble included in msg2, the UE finally determines whether msg2 includes information about the UE. When the terminal receives msg2 only on the beam corresponding to the fifth beam index information, the calculation formula of RA-RNTI may use the conventional calculation method in LTE. The calculation formula is as follows.
RA-RNTI = 1 + t_id + 10 * f_id, where
t_id indicates a subframe in which a physical random access channel (English: physical random access channel, PRACH for short) used when the UE transmits msg1, and f_id indicates a PRACH resource in the subframe. Points to the index. For example, in time division duplex (TDD) mode, multiple PRACH channel resources may be configured within different frequency ranges for subframes and the frequency of each PRACH channel The range corresponds to one part of the frequency domain index information.

Alternatively, the terminal may receive a random access response message msg2 on the beam corresponding to at least a portion of the beam index information. In this case, msg2 may include information about the UE transmitting msg1 on beams corresponding to various beam indexes. The RA-RNTI calculation formula corresponds to the beam index, and may include beam index information to indicate the beam from which the UE transmits the msg1 message. Thus, the UE can more accurately determine whether msg2 includes information about the UE. The calculation formula of RA-RNTI is as follows.
RA-RNTI = 1 + t_id + 10 * f_id + beam_idx
Here, beam_idx indicates beam index information used when the UE transmits msg1.

  This completes the non-contention based random access.

  Further, the random access response message includes sixth beam guide information.

In some cases, processor 101
Controlling the transmitter 103 to transmit a random access message on a beam corresponding to the sixth beam index information, wherein the random access message includes an identifier of the terminal;
Receiving the contention resolution message on the beam corresponding to the sixth beam index or controlling the receiver 104 to receive the contention resolution message on the beam corresponding to at least a portion of the beam index information. The contention resolution message includes a terminal identifier and is further configured to control.

  The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

  In a contention based random access process, the master base station or base station controller allocates only the beam index information used for access, i.e. the fifth beam index information, to the terminal, but for the terminal, the millimeter wave base for access Do not specify a station. The terminal transmits a random access preamble (msg1) on the beam corresponding to the fifth beam index information. After receiving msg1, the millimeter wave base station in the beam direction corresponding to the fifth beam index information transmits a random access response message (msg2) on the beam corresponding to the fifth beam index information. The terminal receives msg2 on the beam corresponding to the fifth beam index information and the UE uses the formula RA-RNTI = 1 + t_id + 10 * f_id to determine whether msg2 includes information about the UE. Alternatively, the terminal may receive msg2 on the beam corresponding to at least a portion of the beam index information, and the UE uses the formula RA-RNTI = 1 + t_id + 10 * f_id + beam_idx, and msg2 contains information about the UE. Determine whether to include. msg2 includes sixth beam guide information, and the terminal transmits a random access message (msg3) according to the sixth beam index information. msg3 includes the identifier of the terminal, and the terminal receives msg3 on the beam corresponding to the sixth beam index information. If the terminal is allowed to access, msg4 containing the terminal identifier is transmitted on the same beam. After receiving msg4 and detecting that msg4 contains the identifier of the terminal, the terminal confirms that the access was successful. For the random access process in subsequent embodiments, the method for the UE to determine whether msg2 contains information about the UE is the same as the method in this embodiment and will not be described in detail in the present invention. In a contention-based random access process, the UE itself may select a random access preamble and a random access time frequency domain resource, and the master base station or millimeter wave base station allocates beam index information used for access to the terminal. There may not be. This means that the fifth beam index information can be arbitrary beam index information. The UE sends msg1 on the beam corresponding to the beam index information currently used by the UE, and the millimeter wave base station is used by the UE to send a random access response message (msg2) to the UE. It is necessary to know the beam index information that is present, otherwise, the millimeter wave base station needs to send msg2 on the beam corresponding to the portions of the beam index information. In order to prevent millimeter wave base stations from sending msg2 on beams corresponding to multiple parts of beam index information and reduce overhead and delay, the master base station or millimeter wave base station can In some cases, random access preambles of millimeter wave cells are grouped in advance according to the index information to form grouping information for the UE. The UE chooses to transmit a random access preamble corresponding to the beam index information currently used by the UE. After receiving the random access preamble, the millimeter wave base station knows the beam index information currently used by the UE according to the mapping relationship between the random access preamble and the beam index information, and the beam corresponding to the beam index information. May send msg2 above. Alternatively, the master base station or millimeter wave base station may pre-group the random access time frequency domain resources of the millimeter wave cell according to various beam index information to construct grouping information for the UE. The UE transmits msg1 on the random access time frequency domain resource corresponding to the beam index information currently used by the UE. After receiving msg1, the millimeter wave base station knows the beam index information currently used by the UE according to the mapping relationship between the random access time frequency domain resource and the beam index information and corresponds to that beam index information May send msg2 on the beam. For the contention based random access process in subsequent embodiments, the method for omitting allocation of beam index information used for access by the master base station or millimeter wave base station to the terminal is the method in this embodiment. The details are not described in the present invention.

  In another access method, the UE sends msg1 to the millimeter wave base station in the beam direction according to the RRM measurement result in step 106 above, eg, has the best signal in the previously reported RRM measurement result. And may choose to send msg1 on the beam corresponding to one part of the beam index information. The millimeter wave base station detects the random access preamble in msg1 by the omnidirectional reception method.

  The millimeter wave base station transmits msg2 in the direction in which msg1 was received, and msg2 includes information about multiple UEs in that direction. Transmit beams generated by different UEs in that direction may be different, and millimeter wave base stations adapt to multiple UE beams to generate new downlink beams, resulting in the same time-frequency domain resources. All UEs used can receive msg2. In addition, since the UE may move in a different direction, msg2 needs to be transmitted in a different direction and the content in msg2 is different. For example, the included random access preambles are different due to different UEs. The UE receives msg2 only in the direction in which msg1 is transmitted.

  In addition, in a contention based random access process, the UE may transmit msg1 using multiple beams simultaneously. Therefore, the probability that the master base station detects msg1 can be increased.

In some cases, processor 101
Controlling the receiver 104 to receive sounding reference signal configuration information transmitted by a master base station or millimeter wave base station, which is sounding reference signal configuration information of at least one cell on at least one millimeter wave band When,
The transmitter 103 is further configured to transmit a sounding reference signal on a beam corresponding to at least a portion of the beam index information according to the sounding reference signal configuration information.

  The master base station or millimeter wave base station controller commands the decision millimeter wave base station to measure the SRS of the decision UE. The UE transmits the SRS according to the beam corresponding to the plurality of parts of the preconfigured beam index information. The millimeter wave base station measures the SRS of the designated UE to determine whether the millimeter wave base station is suitable for serving the UE. If yes, the millimeter wave base station informs the base station controller or another millimeter wave base station information about the time frequency space domain resources that should be allocated to the UE by the millimeter wave base station to avoid interference. .

  The master base station may specify seventh beam index information for the millimeter wave base station, and the millimeter wave base station measures the power of the sounding reference signal of the terminal according to the seventh beam index information. Alternatively, the millimeter wave base station itself may determine the seventh beam index information and measure the power of the sounding reference signal of the terminal according to the seventh beam index information.

  After measuring the power of the sounding reference signal transmitted by the terminal, the millimeter wave base station transmits the measurement result of the sounding reference signal to the base station controller. Before the millimeter wave base station communicates with the terminal, the base station controller determines whether to serve the terminal according to the power of the sounding reference signal transmitted by the terminal. Alternatively, in the process where the millimeter wave base station communicates with the terminal, the base station controller determines whether to continue serving the terminal according to the power of the sounding reference signal transmitted by the terminal. For example, if the power of the sounding reference signal transmitted by the terminal is less than the threshold, it indicates that the terminal is no longer suitable for communicating with the millimeter wave base station, and the base station controller To the master base station to update the set of millimeter wave base stations serving the terminal. If the power of the sounding reference signal transmitted by the terminal is not less than the threshold, no detection report is transmitted.

  When the base station updates the set of millimeter wave base stations that serve the UE, the added millimeter wave base stations (target mmB) are broadcast control channels (BCH for short), SSH, CRS, CSI -Cell configuration information corresponding to the added millimeter wave base station, such as RS, Demodulation Reference Signal (DMRS for short), physical random access channel, and beam configuration information included in the measurement configuration. , Notify mmB currently serving the terminal. The millimeter wave base station currently serving the terminal sends configuration information to the UE, so that the UE quickly accesses the target millimeter wave base station.

  In conclusion, the terminal provided in this embodiment of the present invention solves the problem in the prior art that the available bandwidth when the terminal performs cellular communication is relatively small and expands the frequency range of terminal communication. In order to increase the data transmission rate of the terminal, by obtaining at least one part of beam index information corresponding to at least one millimeter wave band and using a beam corresponding to at least one part of beam index information, Communicate with a millimeter wave base station corresponding to at least one millimeter wave band.

  In addition, the terminal provided in this embodiment of the present invention reduces signal fading and distortion during millimeter wave communication between the terminal and the millimeter wave base station, and reduces interference between users on the same channel. To perform communication, RRM measurement, and random access on the beam corresponding to the specified beam index information.

Referring to FIG. 2, FIG. 2 shows a block diagram of a terminal according to an embodiment of the present invention. The terminal
A receiving module 201 configured to obtain at least a portion of beam index information corresponding to at least one millimeter wave band;
A communication module 202 configured to communicate with a millimeter wave base station corresponding to at least one millimeter wave band by using a beam corresponding to at least a portion of the beam index information may be included.

In some cases, the receiving module 201
Receiving a radio resource reconfiguration message or broadcast message sent by a master base station or millimeter wave base station;
Obtaining at least a portion of beam index information included in the radio resource reconfiguration message or the broadcast message.

  The communication module 202 is further configured to negotiate with the master base station or millimeter wave base station to agree on at least a portion of the beam index information.

  The master base station and the millimeter wave base station are the same base station or different base stations.

In some cases, the communication module 202
Select a beam corresponding to some or all of the beam index information in at least one part of the beam index information and communicate with the millimeter wave base station, or in at least one part of the beam index information, and the master base station Alternatively, it is further configured to determine first beam index information designated by the millimeter wave base station and to communicate with the millimeter wave base station according to a beam corresponding to the first beam index information.

  In some cases, each part of the beam index information corresponds to information about one precoding codebook or information about one group of antenna weights, or each of the beam indexes is about multiple precoding codebooks Or information about a plurality of groups of antenna weights, the information about each group of precoding codebooks or antenna weights uniquely determines the beam.

  In some cases, each part of beam index information corresponds to a coverage area of one sector or one cell, or each part of beam index information is part of a coverage area of one sector or one cell. Correspond.

  The beam index information is 1-level index information or N-level index information, where N is an integer and N ≧ 2.

  When the beam index information is N-level index information, the i-th level index information in the beam index information is associated with at least one part of the (i + 1) -th level index information, and the (i + 1) -th level The beam coverage area corresponding to the index information is not larger than the beam coverage area corresponding to the i-th level index information, and i is an integer, and 2 ≦ i ≦ N.

In some cases, at least a portion of the beam index information includes second beam index information used for radio resource management RRM measurements, and the terminal
A measurement module 203 configured to perform RRM measurement according to the beam corresponding to the second beam index information and obtain a first measurement result, wherein the first measurement result is a reference signal received power RSRP And / or measurement module 203, including reference signal reception quality RSRQ;
A transmission module 204 configured to transmit a first measurement report to a master base station according to a first measurement result, wherein the first measurement report includes the following information: highest RSRP and / or highest RSRQ RSRP measurement results and / or RSRQ measurement results on the beam corresponding to at least a portion of beam index information having the highest RSRP and / or at least a portion of beam index information having the highest RSRQ, highest RSRP and / or Frequency information where at least one portion of beam index information with the highest RSRQ is located, serving cell information associated with at least one portion of beam index information with the highest RSRP and / or highest RSRQ, or highest RSRP and / or At least the beam index information with the highest RSRQ And further includes a transmission module 204 that includes at least one of neighboring cell information associated with the portion.

  Serving cell information or neighboring cell information is indicated by using a physical cell identifier PCI and / or cell global identification information CGI.

In some cases, at least a portion of the beam index information further includes third beam index information used for candidate RRM measurements, and the measurement module 203 includes:
When the RSRP included in the first measurement result is smaller than the preconfigured threshold and / or when the RSRQ included in the first measurement result is smaller than the preconfigured threshold, the third Further configured to begin performing RRM measurement according to the beam corresponding to the beam index information.

  In some cases, at least a portion of the beam index information further includes fourth beam index information used for intra-frequency measurements.

  The receiving module 201 is further configured to obtain measurement gap period information associated with the fourth beam index information.

  Measurement module 203 is further configured to perform intra-frequency measurements on at least one millimeter wave band according to the beam corresponding to the fourth beam index information within the measurement gap indicated by the measurement gap period information.

  In some cases, the communication module 202 is further configured by the terminal to communicate with the millimeter wave base station on a beam corresponding to at least a portion of the beam index information having the highest RSRP and / or highest RSRQ. .

In some cases, the device
A determination module 205 configured to determine fifth beam index information to be used as a physical random access channel resource from at least a portion of the beam index information;
And an access module 206 configured to perform random access according to the beam corresponding to the fifth beam index information.

In some cases, the determination module 205 may specifically:
Selecting one part of the beam index information from at least one part of the beam index information as the fifth beam index information, or being in at least one part of the beam index information and serving as a physical random access channel resource as a master base station or millimeter wave The beam index information designated by the base station is determined to be determined as the fifth beam index information.

  In some cases, the transmission module 204 is further configured to transmit a random access preamble on the beam corresponding to the fifth beam index information.

The receiving module 201
Further configured to receive a random access response message on a beam corresponding to the fifth beam index information, or to receive a random access response message on a beam corresponding to at least a portion of the beam index information. The

  In some cases, the random access response message includes sixth beam guide information.

  The transmission module 204 is further configured to transmit a random access message on the beam corresponding to the sixth beam index information, the random access message including an identifier of the terminal.

The receiving module 201
Receiving a contention resolution message on a beam corresponding to the sixth beam index, or receiving a contention resolution message on a beam corresponding to at least a portion of the beam index information, wherein the contention resolution message is It is further configured to receive, including an identifier.

  The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

  In some cases, the receiving module 201 is sounding reference signal configuration information for cells on at least one millimeter wave band, and is further configured to receive sounding reference signal configuration information transmitted by a master base station or millimeter wave base station. Composed.

  The transmission module 204 is further configured to transmit a sounding reference signal on the beam corresponding to at least a portion of the beam index information according to the sounding reference signal configuration information.

  In conclusion, the terminal provided in this embodiment of the present invention solves the problem in the prior art that the available bandwidth when the terminal performs cellular communication is relatively small and expands the frequency range of terminal communication. In order to increase the data transmission rate of the terminal, by obtaining at least one part of beam index information corresponding to at least one millimeter wave band and using a beam corresponding to at least one part of beam index information, Communicate with a millimeter wave base station corresponding to at least one millimeter wave band.

  In addition, the terminal provided in this embodiment of the present invention reduces signal fading and distortion during millimeter wave communication between the terminal and the millimeter wave base station, and reduces interference between users on the same channel. To perform communication, RRM measurement, and random access on the beam corresponding to the specified beam index information.

  Referring to FIG. 3, FIG. 3 shows a block diagram of a base station according to an embodiment of the present invention. The base station may be a master base station in the embodiment shown in FIG. 1, such as an LTE-A base station. Base station 300 includes a bus 305, a processor 301, a memory 302, a transmitter 303, and a receiver 304 connected to the bus. Memory 302 is configured to store a number of instructions, and some instructions are configured to be executed by processor 301.

  The processor 301 is configured to configure at least one portion of beam index information corresponding to at least one millimeter wave band for the terminal, wherein at least one portion of the beam index information corresponds to at least one portion of the beam index information Is used to instruct the terminal to communicate with a millimeter wave base station corresponding to at least one millimeter wave band.

  For steps in which the terminal performs communication, random access, RRM measurement, and SRS signal transmission according to at least one part of the beam index information, reference may be made to the description in the embodiment corresponding to FIG. Details are not described herein again.

In some cases, processor 301 is further configured to control transmitter 303 to transmit a radio resource reconfiguration message or broadcast message that includes at least a portion of beam index information to the terminal, or processor 301 , Further configured to negotiate with the terminal to determine at least a portion of the beam index information.

  Specifically, the master base station may transmit a radio resource reconfiguration message including at least one part of the beam index information to the terminal, or the master base station negotiates with the terminal and at least the beam index information One part may be determined.

In some cases, processor 301 may
Controlling the receiver 304 to receive a measurement report transmitted by the terminal, the measurement report according to a beam corresponding to the first beam index information included in at least a portion of the beam index information; Is a report sent by the terminal according to the measurement result of the RRM measurement after performing the RRM measurement,
In accordance with the measurement report, the millimeter wave base station for transmitting data to the terminal, and determining beam index information used to transmit data to the terminal are further configured.

  The measurement report is a report transmitted by the terminal according to the measurement result of the RRM measurement after the terminal performs the RRM measurement according to the beam corresponding to the first beam index information included in at least one part of the beam index information.

  For the determination process by the terminal to perform the RRM measurement according to the beam corresponding to the first beam index information, reference may be made to the description in the embodiment corresponding to FIG. Is not listed again. In addition, the first beam index information in this embodiment is equivalent to the second beam index information in the embodiment shown in FIG.

  The master base station may determine the millimeter wave base station for transmitting data to the terminal and the beam index information used for transmitting data to the terminal according to the measurement report.

  In some cases, the processor 301 is further configured to control the transmitter 303 to transmit sounding reference signal configuration information of at least one cell on at least one millimeter wave band to the terminal, and the sounding reference signal configuration information Is used to instruct the terminal to transmit a sounding reference signal on the beam corresponding to at least a portion of the beam index information.

  The processor 301 is further configured to control the transmitter 303 to transmit uplink measurement configuration information to the millimeter wave base station, the uplink measurement configuration information includes second beam index information, and the uplink measurement configuration The information is used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the second beam index information.

  The master base station or base station controller may specify that the decision millimeter wave base station measures the power of the decision terminal's sounding reference signal. Specifically, the master base station or the base station controller commands the terminal to transmit an SRS on the beam corresponding to at least one part of the beam index information, and determines the beam index information (second beam index information). ) Command the millimeter wave base station to measure the terminal's sounding reference signal on the beam corresponding to. The second beam index information in this embodiment of the present invention and the seventh beam index information in the embodiment shown in FIG. 1 have the same function.

  In addition, as an alternative, the millimeter wave base station itself may determine the second beam index information and measure the power of the sounding reference signal of the terminal according to the second beam index information.

  After measuring the power of the sounding reference signal transmitted by the terminal, the millimeter wave base station transmits the measurement result of the sounding reference signal to the base station controller. Before the millimeter wave base station communicates with the terminal, the base station controller determines whether to serve the terminal according to the power of the sounding reference signal transmitted by the terminal. Alternatively, in the process where the millimeter wave base station communicates with the terminal, the base station controller determines whether to continue serving the terminal according to the power of the sounding reference signal transmitted by the terminal. For example, if the power of the sounding reference signal transmitted by the terminal is less than the threshold, it indicates that the terminal is no longer suitable for communicating with the millimeter wave base station, and the base station controller To the master base station to update the set of millimeter wave base stations serving the terminal. If the power of the sounding reference signal transmitted by the terminal is not less than the threshold, no detection report is transmitted.

  In conclusion, the base station provided in this embodiment of the invention constitutes at least a part of beam index information corresponding to at least one millimeter wave band for the terminal, so that the terminal Solve the problem in the prior art that the available bandwidth when performing communication is relatively small, expand the frequency range of terminal communication, increase the data transmission rate of the terminal, At least one by using a beam corresponding to at least a portion of the beam index information to reduce signal fading and distortion during millimeter wave communication between and reduce interference between users on the same channel Communicate with millimeter wave base stations corresponding to millimeter wave bands.

Referring to FIG. 4, FIG. 4 shows a block diagram of a base station according to an embodiment of the present invention. The base station may be a master base station in the embodiment shown in FIG. 1, such as an LTE-A base station. The base station
For a terminal, may include a configuration module 401 configured to configure at least a portion of beam index information corresponding to at least one millimeter wave band, wherein at least one portion of the beam index information includes Used to instruct the terminal to communicate with a millimeter wave base station corresponding to at least one millimeter wave band by using a beam corresponding to at least one portion.

In some cases, the base station further includes a transmission module 402 configured to transmit a radio resource reconfiguration message or broadcast message including at least a portion of the beam index information to the terminal, or the base station It further includes a negotiation module 403 configured to negotiate and determine at least a portion of the beam index information.

In some cases, the base station
A receiving module 404 configured to receive a measurement report transmitted by a terminal, wherein the terminal reports the measurement report according to a beam corresponding to the first beam index information included in at least a portion of the beam index information. A reception module 404, which is a report sent by the terminal according to the measurement result of the RRM measurement after performing the RRM measurement;
A millimeter wave base station for transmitting data to the terminal according to the measurement report, and a determination module 405 configured to determine beam index information used to transmit data to the terminal.

In some cases,
The transmission module 402 is further configured to transmit sounding reference signal configuration information of at least one cell on at least one millimeter wave band to the terminal, the sounding reference signal configuration information corresponding to at least a portion of the beam index information Used to instruct the terminal to transmit a sounding reference signal on the beam.

In some cases,
The transmission module 402 is further configured to transmit uplink measurement configuration information to the millimeter wave base station, the uplink measurement configuration information includes second beam index information, and the uplink measurement configuration information includes the second beam Used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the index information.

  In conclusion, the base station provided in this embodiment of the invention constitutes at least a part of beam index information corresponding to at least one millimeter wave band for the terminal, so that the terminal Solve the problem in the prior art that the available bandwidth when performing communication is relatively small, expand the frequency range of terminal communication, increase the data transmission rate of the terminal, At least one by using a beam corresponding to at least a portion of the beam index information to reduce signal fading and distortion during millimeter wave communication between and reduce interference between users on the same channel Communicate with millimeter wave base stations corresponding to the millimeter wave band.

  Referring to FIG. 5, FIG. 5 shows a block diagram of a base station according to an embodiment of the present invention. The base station may be a millimeter wave base station (English: Millimeter wave Base, abbreviation mmB) in the embodiment shown in FIG. Base station 500 includes a bus 505, a processor 501, a memory 502, a transmitter 503, and a receiver 504 connected to the bus. Memory 502 is configured to store a number of instructions, and some instructions are configured to be executed by processor 501.

  The processor 501 is configured to configure at least one portion of beam index information corresponding to at least one millimeter wave band for the terminal, wherein at least one portion of beam index information corresponds to at least one portion of beam index information Is used to instruct the terminal to communicate with a millimeter wave base station corresponding to at least one millimeter wave band.

In some cases, the processor 501 is further configured to control the transmitter 503 to transmit a radio resource reconfiguration message or broadcast message including at least a portion of beam index information to the terminal, or the processor 501 , Further configured to negotiate with the terminal to determine at least a portion of the beam index information.

In some cases, processor 501
Controlling the receiver 504 to receive a measurement report transmitted by the terminal, the measurement report according to a beam corresponding to the first beam index information included in at least a portion of the beam index information; Is the measurement report sent by the terminal according to the measurement result of the RRM measurement after performing the RRM measurement,
Controlling the transmitter 503 to send a measurement report to the base station controller, where the measurement report is used to send data to the terminal, and a millimeter wave base station for sending data to the terminal Used to instruct the base station controller to determine the beam index information to be controlled.

  The process in which the terminal performs the RRM measurement according to the beam corresponding to the first beam index information included in at least one part of the beam index information and then the terminal transmits the measurement report according to the measurement result of the RRM measurement is illustrated in FIG. It should be noted that details may not be described herein again, which may be shown in the described embodiments. The first beam index information in this embodiment of the present invention and the second beam index information in the embodiment shown in FIG. 1 have the same function.

  In some cases, the processor 501 is further configured to control the transmitter 503 to transmit sounding reference signal configuration information for at least one cell on at least one millimeter wave band to the terminal, and the sounding reference signal configuration information Is used to instruct the terminal to transmit a sounding reference signal on the beam corresponding to at least a portion of the beam index information.

In some cases, processor 501
Controlling receiver 504 to receive a random access preamble transmitted by a terminal on a beam corresponding to second beam index information used as a physical random access channel resource;
And further controlling the transmitter 503 to transmit a random access response message on the beam corresponding to the second beam index information.

  The second beam index information in this embodiment of the present invention and the fifth beam index information in the embodiment shown in FIG. 1 have the same function.

  In some cases, the random access response message includes third beam guide information.

Processor 501
Controlling the receiver 504 to receive a random access message on a beam corresponding to the third beam index information, wherein the random access message includes a terminal identifier;
Further comprising: controlling the transmitter 503 to transmit a contention resolution message on a beam corresponding to the third beam index, wherein the contention resolution message includes an identifier of the terminal. Is done.

  The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

  The third beam index information in this embodiment of the present invention and the sixth beam index information in the embodiment shown in FIG. 1 have the same function.

  The terminal may perform random access to the millimeter wave base station according to second beam index information in at least a portion of the beam index information. Random access may be a non-contention based random access process or may be a contention based random access process. For the random access method of decision, reference may be made to the description in the embodiment corresponding to FIG. 1, and details are not described herein again.

In some cases, processor 501
Controlling receiver 504 to receive uplink measurement configuration information transmitted by a master base station or base station controller, wherein the uplink measurement configuration information includes fourth beam index information When,
Measuring the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the fourth beam index information;
The power of the sounding reference signal is to control the transmitter 503 so as to transmit the measurement result including the power obtained by the measurement to the base station controller. When the measurement result is greater than the threshold, the measurement result is used to instruct the base station controller to instruct the millimeter wave base station to prepare to communicate with the terminal, and further to control Composed.

  The master base station or base station controller may specify that the decision millimeter wave base station measures the power of the decision terminal's sounding reference signal. Specifically, the master base station or the base station controller commands the terminal to transmit the SRS on the beam corresponding to at least one part of the beam index information, and determines the beam index information (fourth beam index information). ) Command the millimeter wave base station to measure the terminal's sounding reference signal on the beam corresponding to.

  The fourth beam index information in this embodiment of the present invention and the seventh beam index information in the embodiment shown in FIG. 1 have the same function.

  After measuring the power of the sounding reference signal transmitted by the terminal, the millimeter wave base station transmits the measurement result of the sounding reference signal to the base station controller. Before the millimeter wave base station communicates with the terminal, the base station controller determines whether to serve the terminal according to the power of the sounding reference signal transmitted by the terminal. Alternatively, in the process where the millimeter wave base station communicates with the terminal, the base station controller determines whether to continue serving the terminal according to the power of the sounding reference signal transmitted by the terminal. For example, if the power of the sounding reference signal transmitted by the terminal is less than the threshold, it indicates that the terminal is no longer suitable for communicating with the millimeter wave base station, and the base station controller To the master base station to update the set of millimeter wave base stations serving the terminal. If the power of the sounding reference signal transmitted by the terminal is not less than the threshold, no detection report is transmitted.

  In conclusion, the base station provided in this embodiment of the present invention solves the problem in the prior art that the available bandwidth when the terminal performs cellular communication is relatively small, and reduces the frequency range of terminal communication. To expand and increase the terminal data transmission rate, reduce signal fading and distortion during millimeter wave communication between the terminal and millimeter wave base station, and reduce interference between users on the same channel, Communicate with the terminal by using a beam corresponding to at least a portion of the beam index information corresponding to at least one millimeter wave band.

Referring to FIG. 6, FIG. 6 shows a block diagram of a base station according to an embodiment of the present invention. The base station may be a millimeter wave base station in the embodiment shown in FIG. The base station
The terminal may include a configuration module 601 configured to configure at least one portion of beam index information corresponding to at least one millimeter wave band, wherein at least one portion of the beam index information includes Used to instruct the terminal to communicate with a millimeter wave base station corresponding to at least one millimeter wave band by using a beam corresponding to at least one portion.

In some cases, the base station further includes a transmission module 602 configured to transmit to the terminal a radio resource reconfiguration message or broadcast message that includes at least a portion of the beam index information, or the base station Further included is a negotiation module 603 configured to negotiate and determine at least a portion of the beam index information.

In some cases, the base station
Further comprising a receiving module 604 configured to receive a measurement report transmitted by the terminal, wherein the measurement report is received by the terminal according to a beam corresponding to the first beam index information included in at least a portion of the beam index information. It is a measurement report transmitted by the terminal according to the measurement result of the RRM measurement after performing the RRM measurement.

  The transmission module 602 is configured to transmit a measurement report to the base station controller, the measurement report includes a millimeter wave base station for transmitting data to the terminal, and a beam index used to transmit data to the terminal Used to instruct the base station controller to determine information.

  In some cases, the transmission module 602 is further configured to transmit sounding reference signal configuration information of at least one cell on at least one millimeter wave band to the terminal, wherein the sounding reference signal configuration information is at least of the beam index information. Used to instruct the terminal to transmit a sounding reference signal on the beam corresponding to one part.

  In some cases, the receiving module 604 is further configured to receive a random access preamble transmitted by the terminal on a beam corresponding to the second beam index information used as a physical random access channel resource.

  The transmission module 602 is further configured to transmit a random access response message on the beam corresponding to the second beam index information.

  In some cases, the random access response message includes third beam guide information.

  The receiving module 604 is further configured to receive a random access message on a beam corresponding to the third beam index information, the random access message including a terminal identifier.

  The transmission module 602 is further configured to transmit a contention resolution message on the beam corresponding to the third beam index, where the contention resolution message includes a terminal identifier.

  The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

  In some cases, receive module 604 is further configured to receive uplink measurement configuration information transmitted by a master base station or base station controller, wherein the uplink measurement configuration information includes fourth beam index information.

  The base station further includes a measurement module 605 configured to measure the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the fourth beam index information.

  Transmit module 602 is the power of the sounding reference signal and is further configured to transmit a measurement result including the power obtained by the measurement, when the power of the sounding reference signal is greater than a preset power threshold The measurement results are used to instruct the base station controller to instruct the millimeter wave base station to prepare to communicate with the terminal.

  In conclusion, the base station provided in this embodiment of the present invention solves the problem in the prior art that the available bandwidth when the terminal performs cellular communication is relatively small, and reduces the frequency range of terminal communication. To expand and increase the terminal data transmission rate, reduce signal fading and distortion during millimeter wave communication between the terminal and millimeter wave base station, and reduce interference between users on the same channel, Communicate with the terminal by using a beam corresponding to at least a portion of the beam index information corresponding to at least one millimeter wave band.

Referring to FIG. 7, FIG. 7 shows a block diagram of a base station controller according to an embodiment of the present invention. The base station controller may be used to control at least one millimeter wave base station. Base station controller 700
It includes a bus 705, a processor 701, a memory 702, a transmitter 703, and a receiver 704 connected to the bus. Memory 702 is configured to store a number of instructions, and some instructions are configured to be executed by processor 701.

Processor 701
Controlling the transmitter 703 to transmit uplink measurement configuration information to the millimeter wave base station, where the uplink measurement configuration information includes beam index information, and the uplink measurement configuration information corresponds to the beam index information. Used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam to be controlled;
Controlling the receiver 704 to receive a measurement result transmitted by the millimeter wave base station, which is the power of the sounding reference signal, including the power obtained by the measurement;
Instructing the millimeter wave base station to prepare to communicate with the terminal when the power of the sounding reference signal is greater than a preset power threshold.

  The terminal communicates with the millimeter wave base station corresponding to the at least one millimeter wave band by using at least a portion of the beam index information corresponding to the at least one millimeter wave band.

  The master base station or base station controller may specify that the decision millimeter wave base station measures the power of the decision terminal's sounding reference signal. Specifically, the master base station or base station controller commands the terminal to transmit an SRS on a beam corresponding to at least a portion of the beam index information, and the terminal on the beam corresponding to the determined beam index information. The millimeter wave base station is instructed to measure the sounding reference signal. The beam index information in this embodiment of the present invention and the seventh beam index information in the embodiment shown in FIG. 1 have the same function.

  After measuring the power of the sounding reference signal transmitted by the terminal, the millimeter wave base station transmits the measurement result of the sounding reference signal to the base station controller. Before the millimeter wave base station communicates with the terminal, the base station controller determines whether to serve the terminal according to the power of the sounding reference signal transmitted by the terminal. Alternatively, in the process where the millimeter wave base station communicates with the terminal, the base station controller determines whether to continue serving the terminal according to the power of the sounding reference signal transmitted by the terminal. For example, if the power of the sounding reference signal transmitted by the terminal is less than the threshold, it indicates that the terminal is no longer suitable for communicating with the millimeter wave base station, and the base station controller To the master base station to update the set of millimeter wave base stations serving the terminal. If the power of the sounding reference signal transmitted by the terminal is not less than the threshold, no detection report is transmitted.

In some cases, processor 701 may
Controlling the receiver 704 to receive a measurement report transmitted by the millimeter wave base station, wherein the terminal reports the measurement report according to a beam corresponding to the first beam index information included in the beam index information. After performing the RRM measurement, controlling the measurement report sent by the terminal according to the measurement result of the RRM measurement,
In accordance with the measurement report, the millimeter wave base station for transmitting data to the terminal, and determining beam index information used to transmit data to the terminal are further configured.

  In conclusion, the base station controller provided in this embodiment of the invention instructs the millimeter wave base station to measure the terminal's sounding reference signal on the beam corresponding to the beam index information of the decision, so that The terminal solves the problem in the prior art that the available bandwidth when the terminal performs cellular communication is relatively small, expands the frequency range of the terminal communication, increases the data transmission rate of the terminal, At least one of the beam index information corresponding to at least one millimeter wave band to reduce signal fading and distortion during millimeter wave communication with the millimeter wave base station and to reduce interference between users on the same channel. Communication is performed on the beam corresponding to one part.

Referring to FIG. 8, FIG. 8 shows a block diagram of a base station controller according to an embodiment of the present invention. The base station controller may be the base station controller in the embodiment shown in FIG. The base station controller
A transmission module 801 configured to transmit uplink measurement configuration information to a millimeter wave base station, wherein the uplink measurement configuration information includes beam index information, and the uplink measurement configuration information corresponds to the beam index information. A transmission module 801 used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam;
A receiving module 802 configured to receive a measurement result transmitted by the millimeter wave base station, the power of the sounding reference signal, including the power obtained by the measurement;
An instruction module 803 configured to instruct the millimeter wave base station to prepare to communicate with the terminal when the power of the sounding reference signal is greater than a preset power threshold.

  The terminal communicates with the millimeter wave base station corresponding to the at least one millimeter wave band by using at least a portion of the beam index information corresponding to the at least one millimeter wave band.

  The receiving module 802 is further configured to receive a measurement report transmitted by the millimeter wave base station, and the measurement report is received by the terminal according to a beam corresponding to the first beam index information included in the beam index information. Is a measurement report transmitted by the terminal according to the measurement result of the RRM measurement.

The base station controller
A determination module 804 configured to determine a millimeter wave base station for transmitting data to the terminal and beam index information used to transmit data to the terminal according to the measurement report.
Further included.

  In conclusion, the base station controller provided in this embodiment of the invention instructs the millimeter wave base station to measure the terminal's sounding reference signal on the beam corresponding to the beam index information of the decision, so that The terminal solves the problem in the prior art that the available bandwidth when the terminal performs cellular communication is relatively small, expands the frequency range of the terminal communication, increases the data transmission rate of the terminal, At least one of the beam index information corresponding to at least one millimeter wave band to reduce signal fading and distortion during millimeter wave communication with the millimeter wave base station and to reduce interference between users on the same channel. Communication is performed on the beam corresponding to one part.

  In the case of the master base station, millimeter wave base station, and base station controller shown in the above embodiment of the present invention, the base station controller may be separately arranged outside the master base station and millimeter wave base station. It should be noted that the base station controller may be located in a master base station or millimeter wave base station. The determination method for arranging the base station controller is not specifically limited in the embodiment of the present invention.

  Referring to FIG. 9, FIG. 9 shows a method flowchart of a millimeter wave cellular communication method according to an embodiment of the present invention. A terminal corresponding to the millimeter wave cellular communication method may be the terminal in the embodiment shown in FIG. The terminal in the embodiment shown in FIG. 1 can perform the following steps of the method.

  902. The terminal acquires beam index information corresponding to the millimeter wave band.

  904. The terminal communicates with the millimeter wave base station corresponding to the millimeter wave band according to the beam index information.

  Before obtaining the beam index information corresponding to the millimeter wave band, the terminal receives the radio resource reconfiguration message or broadcast message transmitted by the master base station or the millimeter wave base station, and receives the radio resource reconfiguration message or broadcast message. The beam index information corresponding to the millimeter wave band may be acquired.

  Alternatively, before obtaining the beam index information corresponding to the millimeter wave band, the terminal may negotiate with the master base station or the millimeter wave base station to agree on the beam index information. The master base station and the millimeter wave base station are the same base station or different base stations.

  Each part of the beam index information corresponds to information about one precoding codebook or information about one group of antenna weights, or each of the beam indexes is information about multiple precoding codebooks or antennas Corresponding to information about multiple groups of weights, the information about each group of precoding codebooks or antenna weights uniquely determines the beam.

  The beam index information is further associated with the beam characteristic information. The master base station transmits different beam determination characteristic information on the beam, so that the UE identifies the different beams according to the different beam characteristic information. The master base station uses different reference signal sequences on different beams or broadcasts beam index information for different beams on the beam. The UE may uniquely determine the determined beam according to the beam index information and characteristic information of the beam. The beam index information may also be used as a virtual cell identity, i.e., the cell is further divided into various sectors or sub-sectors according to multiple relatively wide beams. The function and use of the beam index information in the following embodiments of the present invention is the same as those described in this embodiment, and details are not described again below.

  In addition, each part of the beam index information corresponds to a coverage area of one sector or one cell, or each part of the beam index information corresponds to a part of the coverage area of one sector or one cell To do. The beam index information is 1-level index information or N-level index information, where N is an integer and N ≧ 2. When the beam index information is N-level index information, the i-th level index information in the beam index information is associated with the (i + 1) -th level index information, and the (i + 1) -th level index information is The coverage area of the corresponding beam is not larger than the coverage area of the beam corresponding to the i-th level index information, i is an integer, and 2 ≦ i ≦ N.

  When the beam index information selected or determined by the UE is the i-th level index information, the UE communicates with the millimeter wave base station by using the beam represented by the i-th level index information. There may be cases where it communicates with the millimeter wave base station by using a beam corresponding to the (i + 1) th level index information.

  In this embodiment of the present invention, the millimeter wave band is configured for the terminal as a service band, and the terminal is configured to expand the frequency range of terminal communication and to increase the data transmission rate of the terminal. Communicate with millimeter wave base station above. The steps in which the master base station configures a cell corresponding to the millimeter wave band for the terminal and the terminal communicates with the millimeter wave base station are as follows.

  (1) The user equipment performs downlink radio resource management measurement on the millimeter wave band to measure the signal reception power of the millimeter wave band cell reference signal or channel quality indicator reference signal, and the master base station or millimeter wave A first measurement report is transmitted to the base station. The master base station, according to the first measurement report of the UE, has entered the coverage area of the millimeter wave base station, and one or more cells corresponding to the millimeter wave frequency have one or more secondary Determine that the cell can be configured for the UE.

The RRM measurement in this specification refers to a measurement used for mobility management, and is a measurement method filtered by a radio resource control layer. For example, the filtering method used in LTE systems is F _n = (1−a) · F _n−1 + a · M _n , where F _n is the latest filtered measurement result and the measurement report Is used to evaluate the criteria for triggering _Fn−1 is the previously calculated filtered measurement result, M _n is the latest measurement result in the physical layer, and a is the various measurement requirements Is a coefficient determined according to

  Prior to this, the master base station or millimeter wave base station configures one or more millimeter wave band measurements for the UE. The configuration information includes at least configuration information such as a frequency range of the millimeter wave band, a CSI-RS port number, a subframe, and a scrambling code. As a result, the UE performs measurement and reporting according to the configuration information.

  Alternatively, the master base station or millimeter wave base station may provide coverage of the millimeter wave base station according to the UE's first measurement report and / or UE location information in an existing band having a relatively low frequency, such as the LTE band. It may be judged that the area has been entered. Existing bands with relatively low frequencies are provided mainly by master base stations or millimeter wave base stations, the latter supporting both existing and millimeter wave bands where millimeter wave base stations have relatively low frequencies Need.

  (2) The master base station transmits a request message to the millimeter wave base station or the base station controller, and requests to configure the millimeter wave base station for the UE as a SCell.

  The master base station adds at least a cell radio network temporary identifier of the UE, radio bearer configuration information of the UE, radio resource configuration information of the master base station, identification information of one or more millimeter wave base stations, and the like to the request message. .

  One or more millimeter wave base stations may have the same frequency range, and the frequencies provided by multiple millimeter wave base stations may form the same SCell. In this case, the frequencies provided by multiple millimeter wave base stations have the same physical cell identifier and the same evolved cell global identification information. A plurality of millimeter wave base stations transmit the same primary synchronization signal and the same secondary synchronization signal. Alternatively, multiple millimeter wave base stations may transmit different PSSs and different SSSs to distinguish different millimeter wave base stations. The frequencies provided by multiple millimeter wave base stations may have different CSI-RS port configurations, so that different millimeter wave base stations can be distinguished accordingly. Alternatively, the frequencies provided by multiple millimeter wave base stations may have the same CSI-RS port configuration, and millimeter wave base stations are not distinguished.

  One or more millimeter wave base stations may have different frequency ranges, and the frequencies provided by the multiple millimeter wave base stations are used individually as different SCells. The frequencies provided by multiple millimeter wave base stations have different physical cell identifiers and different evolved cell global identification information, and multiple millimeter wave base stations transmit different PSSs and different SSSs.

  (3) The millimeter wave base station or the base station controller performs admission control, agrees to configure a cell corresponding to at least one millimeter wave band as a SCell for the UE, and sends a response message to the master base station. Send.

  The response message may carry the following information: the sounding reference signal configuration information of the UE and the C-RNTI allocated to the UE. On the other hand, the SRS configuration information may be uniquely configured by the master base station, and as a result, the millimeter wave base station does not provide the SRS configuration information. The millimeter wave base station may also not provide C-RNTI configuration information, so that the UE uses the C-RNTI allocated by the PCell in both the PCell and the SCell.

  The response message further carries at least the following information: a frequency range of millimeter waves, common radio resource configuration information, and dedicated radio resource configuration information.

  The millimeter wave base station or base station controller sends a notification message to all millimeter wave base stations in the cluster, so that all millimeter wave base stations in the cluster prepare to measure the UE's SRS, Prepare resources according to measurements performed by all millimeter wave base stations or base station controller notification messages to serve the UE.

  (4) The master base station or the millimeter wave base station transmits a radio resource reconfiguration message to the UE, and configures a SCell for the UE.

  The radio resource reconfiguration message carries at least radio resource configuration information related to the millimeter wave base station, and may further carry radio resource configuration information of the master base station.

  (5) The UE performs radio resource configuration and transmits a radio resource reconfiguration completion message to the master base station.

  (6) The UE performs a random access process with one or more millimeter wave base stations to implement uplink synchronization with one or more millimeter wave base stations.

  (7) The millimeter wave base station or base station controller determines one or more millimeter wave base stations that communicate with the UE within a specified time according to the UE's SRS measurements.

  In some cases, the millimeter wave base station or the base station controller may notify the master base station of identification information of the millimeter wave base station.

  (8) The one or more millimeter wave base stations allocate resources to the UE and perform data communication including downlink communication and / or uplink communication with the UE.

  (9) The millimeter wave base station measures the SRS of the UE and determines whether or not to continue serving the UE.

  Due to UE movement, one or more millimeter wave base stations may no longer be suitable for data communication with the UE. For example, one or more millimeter wave base stations stop serving the UE when the measured signal strength of the UE's SRS is less than a specified threshold Judge that it is necessary.

  (10) The millimeter wave base station or base station controller sends a first measurement report and / or message to the master base station that determines whether to continue serving the UE.

  A millimeter wave base station determined by the millimeter wave base station or base station controller to continue serving the UE does not need to send a message to the master base station, and steps 10-13 are not required.

  (11) The master base station decides to update the set of millimeter wave base stations serving the UE.

  (12) The master base station transmits the identification information of the millimeter wave base station that does not need to serve the UE to the millimeter wave base station or the base station controller.

  (13) The millimeter wave base station or the base station controller may perform downlink communication and / or uplink communication with one or more millimeter wave base stations allocating resources to the UE according to the measurement result of the SRS of the UE. Are determined dynamically.

  Millimeter wave band signals have a relatively large free space attenuation, and factors such as air absorption and absorption and scattering of rain, fog, buildings, and other objects also have a relatively large impact on the millimeter wave band. . Thus, in this embodiment of the invention, the decision beam index information is set for the terminal, and in the transmission process due to factors such as space loss and multipath effect when the terminal and the millimeter wave base station perform millimeter wave communication. In order to reduce the signal fading and distortion of the induced radio signal and reduce the interference between users on the same channel, the terminal performs communication on the beam corresponding to the determined beam index information.

  A terminal may perform random access, RRM measurement, transmission of a sounding reference signal SRS, and the like by using beam index information corresponding to a designated millimeter wave band. Refer to the following steps for details.

The terminal selects a beam corresponding to some or all of the beam index information in the beam index information and communicates with the millimeter wave base station, or the terminal is in the beam index information and is either a master base station or The first beam index information designated by the wave base station may be determined and communicated with the millimeter wave base station according to the beam corresponding to the first beam index information.

  There may be one or more portions of beam index information. The terminal may select a beam corresponding to some or all of the beam index information to perform data reception and transmission. Alternatively, the master base station or millimeter wave base station specifies one or more portions of the beam index information within the beam index information, and the terminal uses the beam index information specified by the master base station or millimeter wave base station. The data is received and transmitted according to the above.

  In some cases, the terminal performs downlink radio resource management measurements according to the beam index information.

  The beam index information may include second beam index information used for RRM measurement. The terminal performs RRM measurement according to the beam corresponding to the second beam index information to obtain a first measurement result, and the first measurement result is a reference signal received power RSRP and / or a reference signal reception quality RSRQ. including.

  In a millimeter wave cell, the UE may move quickly between different beams. Therefore, the requirements for RRM measurements used for beam management may be more stringent than those in existing LTE systems, e.g., evaluated every 10 milliseconds to determine if measurement reporting criteria are met. To be implemented. Furthermore, in a broad sense, RRM measurements used for beam management of millimeter wave cells may refer to measurements performed in a beam training scheme. For example, the master base station and the UE each transmit and receive measurement signals on multiple beams within the cell range to find the best matched beam pair. When communication is performed between such pairs that transmit and receive beams, the reception efficiency is highest and the transmitted data is the most reliable. Measurements in such cases may be filtered by the RRC layer and the measurement requirements are more stringent, or measurements in such cases do not need to be filtered by the RRC layer and the current measurement results are directly used. In this way, a better transmission effect may be realized between the master base station and the UE by using smaller transmission power. The meaning of RRM measurements for beam management of millimeter wave cells in the following embodiments of the present invention is the same as those described in this embodiment, and details are not described again below.

  The terminal transmits a first measurement report to the master base station according to the first measurement result. The first measurement report corresponds to the following information: at least part of beam index information with the highest RSRP and / or highest RSRQ, at least part of beam index information with the highest RSRP and / or highest RSRQ RSRP measurement result and / or RSRQ measurement result on the beam to be transmitted, frequency information in which at least one part of beam index information having the highest RSRP and / or highest RSRQ is located, beam having the highest RSRP and / or highest RSRQ It includes at least one of serving cell information associated with at least a portion of the index information or neighboring cell information associated with at least a portion of the beam index information having the highest RSRP and / or the highest RSRQ. Serving cell information or neighboring cell information is indicated by using a physical cell identifier PCI and / or cell global identification information CGI.

  RRM measurements are performed with multiple pre-configured fixed beam directions / widths. The UE reports RSRP / RSRQ measured on one or more beams with the best signal quality, and corresponding beam index information is included during the report, so that the master base station Schedule according to the measurement report.

  Alternatively, the UE may adaptively choose to perform measurements on multiple beams and choose to report RSRP / RSRQ information on one or more beams with the best signal quality. Beam index information selected by the UE, eg, information about multiple antenna weights, is included during the report.

  Further, the beam index information further includes third beam index information used for candidate RRM measurement. When the RSRP included in the first measurement result is smaller than the preconfigured threshold and / or when the RSRQ included in the first measurement result is smaller than the preconfigured threshold, the terminal The RRM measurement is started according to the beam corresponding to the third beam index information.

  A UE may not measure a signal on another beam if the RSRP / RSRQ obtained by measurement by the UE on a beam corresponding to a portion of the beam index information is greater than a preset threshold Or, from the same cell, the signal on another beam may be measured by using a longer period to select a relatively broader better beam range as the data communication range.

  Alternatively, the UE may select multiple relatively wide beam ranges with both relatively good signal quality and relatively good spatial separation to perform the measurement. The measurement periods can be the same or can be different to support simultaneous operation of multiple beams.

  Further, the beam index information further includes fourth beam index information used for the intra-frequency measurement. The terminal acquires measurement gap period information associated with the fourth beam index information. The terminal performs an intra-frequency measurement on the millimeter wave band in accordance with the beam corresponding to the fourth beam index information within the measurement gap indicated by the measurement gap period information.

  When UE needs to be adjusted to the direction angle corresponding to another beam to measure SCH, CRS, CSI-RS, etc. of neighboring cells, UE has more antennas even in case of in-frequency measurement And without a radio frequency link, the serving cell cannot schedule UEs in multiple beam directions. Thus, the master base station or base station controller may preconfigure measurement gap period information for the terminal and associate the measurement gap period information with beam index information used for intra-frequency measurements. In-frequency measurements are performed only within the measurement gap indicated by the measurement gap period information.

  In this embodiment, a trigger condition may be further set for an event for transmitting the first measurement report. For example, when the RSRP on the beam corresponding to one part of the beam index information is smaller than a preset value, the RSRP on the beam corresponding to another part of the beam index information is still less than the preset value. High, the first measurement report is triggered.

  Referring to the RRM measurement method shown in this step, when communicating with a millimeter wave base station, the terminal performs communication on the beam corresponding to the beam index information having the highest RSRP and / or the highest RSRQ. There is a case.

  In some cases, the terminal performs random access according to the beam index information.

  The terminal determines fifth beam index information to be used as a physical random access channel resource from the beam index information, and performs random access according to the beam corresponding to the fifth beam index information.

  When determining the fifth beam index information, the terminal may select a part of the beam index information from the beam index information as the fifth beam index information, or the terminal is in the beam index information, The beam index information designated by the master base station or the millimeter wave base station as the physical random access channel resource may be determined as the fifth beam index information.

The random access process may be contention based random access or non-contention based random access. In the non-contention based random access process, the master base station or the base station controller allocates the millimeter wave base station for access and the beam index information used for access, that is, the fifth beam index information to the terminal. The terminal transmits a random access preamble (preamble, ie, msg1) on the beam corresponding to the fifth beam index information. After the millimeter wave base station in the direction of the beam corresponding to the fifth beam index information receives msg1, the millimeter wave base station is assigned to the terminal by the master base station or the base station controller for random access. The millimeter wave base station transmits a random access response message (msg2) on the beam corresponding to the fifth beam index information. The terminal receives a random access response message on the beam corresponding to the fifth beam index information. The random access response message may include information about at least one UE. These UEs send msg1 by using the same time frequency domain resource. The UE determines whether msg2 includes information for the UE according to an identifier such as a random access radio network temporary identifier on the physical downlink control channel. When the time-frequency resource used when the UE transmits a random access preamble and the RA-RNTI match, the UE determines that the msg2 may include information about the UE. Further, depending on whether the preamble used when the UE transmits msg1 matches the preamble included in msg2, the UE finally determines whether msg2 includes information about the UE. When the terminal receives msg2 only on the beam corresponding to the fifth beam index information, the calculation formula of RA-RNTI may use the conventional calculation method in LTE. The calculation formula is as follows.
RA-RNTI = 1 + t_id + 10 * f_id, where
t_id indicates a subframe in which a physical random access channel used when the UE transmits msg1 is located, and f_id indicates an index of the PRACH resource in the subframe. For example, in time division duplex mode, multiple PRACH channel resources may be configured within various frequency ranges for subframes, and the frequency range for each PRACH channel is part of the frequency domain index information. Corresponds to.

Alternatively, the terminal may receive a random access response message msg2 on the beam corresponding to the beam index information. In this case, msg2 may include information about the UE transmitting msg1 on beams corresponding to various beam indexes. The RA-RNTI calculation formula corresponds to the beam index, and may include beam index information to indicate the beam from which the UE transmits the msg1 message. Thus, the UE can more accurately determine whether msg2 includes information about the UE. The calculation formula of RA-RNTI is as follows.
RA-RNTI = 1 + t_id + 10 * f_id + beam_idx
Here, beam_idx indicates beam index information used when the UE transmits msg1.

  This completes the non-contention based random access.

  Further, the random access response message includes sixth beam guide information. The terminal transmits a random access message on the beam corresponding to the sixth beam index information, and the random access message includes an identifier of the terminal. The terminal receives a contention resolution message on the beam corresponding to the sixth beam index, or the terminal receives a contention resolution message on the beam corresponding to the beam index information, and the contention resolution message contains the identifier of the terminal. Including. The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

  In a contention based random access process, the master base station or base station controller allocates only the beam index information used for access, i.e. the fifth beam index information, to the terminal, but for the terminal, the millimeter wave base for access Do not specify a station. The terminal transmits a random access preamble (msg1) on the beam corresponding to the fifth beam index information. After receiving msg1, the millimeter wave base station in the beam direction corresponding to the fifth beam index information transmits a random access response message (msg2) on the beam corresponding to the fifth beam index information. The terminal receives msg2 on the beam corresponding to the fifth beam index information and the UE uses the formula RA-RNTI = 1 + t_id + 10 * f_id to determine whether msg2 includes information about the UE. Alternatively, the terminal may receive msg2 on the beam corresponding to the beam index information, and the UE uses the formula RA-RNTI = 1 + t_id + 10 * f_id + beam_idx to determine whether msg2 contains information about the UE. judge. msg2 includes sixth beam guide information, and the terminal transmits a random access message (msg3) according to the sixth beam index information. msg3 includes the identifier of the terminal, and the terminal receives msg3 on the beam corresponding to the sixth beam index information. If the terminal is allowed to access, msg4 containing the terminal identifier is transmitted on the same beam. After receiving msg4 and detecting that msg4 contains the identifier of the terminal, the terminal confirms that the access was successful. For the random access process in subsequent embodiments, the method for the UE to determine whether msg2 contains information about the UE is the same as the method in this embodiment and will not be described in detail in the present invention.

  In another access method, the master base station or base station controller specifies beam index information for a random access preamble. The UE transmits msg1 to the millimeter wave base station in the beam direction according to the measurement result of the RRM measurement in step 906 above.For example, the UE has the best signal in the previously reported RRM measurement result and the beam index information May choose to send msg1 on the beam corresponding to one part. The millimeter wave base station detects the random access preamble in msg1 by the omnidirectional reception method.

  The millimeter wave base station transmits msg2 in the direction in which msg1 was received, and msg2 includes information about multiple UEs in that direction. Transmit beams generated by different UEs in that direction may be different, and millimeter wave base stations adapt to multiple UE beams to generate new downlink beams, resulting in the same time-frequency domain resources. All UEs used can receive msg2. In addition, since the UE may move in a different direction, msg2 needs to be transmitted in a different direction and the content in msg2 is different. For example, the included random access preambles are different due to different UEs. The UE receives msg2 only in the direction in which msg1 is transmitted.

  In addition, in a contention based random access process, the UE may transmit msg1 using multiple beams simultaneously. Therefore, the probability that the master base station detects msg1 can be increased.

  In some cases, the terminal transmits a sounding reference signal according to the beam index information.

  Specifically, the terminal receives sounding reference signal configuration information transmitted by the master base station, and the terminal transmits a sounding reference signal on the beam corresponding to the beam index information according to the sounding reference signal configuration information.

  The master base station or millimeter wave base station controller commands the decision millimeter wave base station to measure the SRS of the decision UE. The UE transmits the SRS according to the beam corresponding to the plurality of parts of the preconfigured beam index information. The millimeter wave base station measures the SRS of the designated UE to determine whether the millimeter wave base station is suitable for serving the UE. If yes, the millimeter wave base station informs the base station controller or another millimeter wave base station information about the time frequency space domain resources that should be allocated to the UE by the millimeter wave base station to avoid interference. .

  After measuring the power of the sounding reference signal transmitted by the terminal, the millimeter wave base station transmits the measurement result of the sounding reference signal to the base station controller. Before the millimeter wave base station communicates with the terminal, the base station controller determines whether to serve the terminal according to the power of the sounding reference signal transmitted by the terminal. Alternatively, in the process where the millimeter wave base station communicates with the terminal, the base station controller determines whether to continue serving the terminal according to the power of the sounding reference signal transmitted by the terminal. For example, if the power of the sounding reference signal transmitted by the terminal is less than the threshold, it indicates that the terminal is no longer suitable for communicating with the millimeter wave base station, and the base station controller To the master base station to update the set of millimeter wave base stations serving the terminal. If the power of the sounding reference signal transmitted by the terminal is not less than the threshold, no detection report is transmitted.

  When the base station updates the set of millimeter wave base stations served to the UE, the added millimeter wave base station (target mmB) is broadcast control channel, SSH, CRS, CSI-RS, demodulation reference signal, physical random access channel And the configuration information of the cell corresponding to the added millimeter wave base station, such as the beam configuration information included in the measurement configuration, is notified to the mmB currently serving the terminal. The millimeter wave base station currently serving the terminal transmits configuration information to the UE, so that the UE quickly accesses the target millimeter wave base station.

  In conclusion, the method provided in this embodiment of the present invention solves the problem in the prior art that the available bandwidth when the terminal performs cellular communication is relatively small, and the frequency range of terminal communication. In order to increase the data transmission rate of the terminal, the terminal acquires the beam index information corresponding to the millimeter wave band, and uses the beam corresponding to the beam index information, thereby supporting the millimeter wave band. Communicate with millimeter wave base stations.

  In addition, the method provided in this embodiment of the invention reduces signal fading and distortion during millimeter wave communication between the terminal and the millimeter wave base station, and reduces interference between users on the same channel. In order to decrease the terminal, the terminal performs communication, RRM measurement, and random access on the beam corresponding to the specified beam index information.

  Referring to FIG. 10, FIG. 10 shows a method flowchart of a millimeter wave cellular communication method according to an embodiment of the present invention. The master base station corresponding to the millimeter wave communication method may be the base station in the embodiment shown in FIG. The base station in the embodiment shown in FIG. 3 can perform the following steps of the method.

  Step 1002: The master base station configures beam index information corresponding to the millimeter wave band for the terminal, and the beam index information uses the beam corresponding to the beam index information, so that the millimeter corresponding to the millimeter wave band. Used to instruct the terminal to communicate with the wave base station.

  Specifically, the master base station may transmit a radio resource reconfiguration message including beam index information to the terminal, or the master base station may negotiate with the terminal and determine the beam index information. .

  In some cases, the master base station receives a measurement report sent by the terminal.

  The measurement report is a report transmitted by the terminal according to the measurement result of the RRM measurement after the terminal performs the RRM measurement according to the beam corresponding to the first beam index information included in the beam index information.

  For the process of determining the RRM measurement to be performed by the terminal according to the beam corresponding to the first beam index information, reference may be made to the description in the embodiment corresponding to FIG. 9, which is described in detail herein. Is not listed again. The first beam index information in this embodiment of the present invention and the second beam index information in the embodiment corresponding to FIG. 9 have the same function.

  In some cases, the master base station performs data scheduling according to the measurement report.

  Specifically, the master base station may determine a millimeter wave base station for transmitting data to the terminal and beam index information used for transmitting data to the terminal according to the measurement report.

  In some cases, the master base station transmits the sounding reference signal configuration information of the cells on the millimeter wave band to the terminal, and transmits the uplink measurement configuration information to the millimeter wave base station.

  The master base station transmits sounding reference signal configuration information to the terminal, and the sounding reference signal configuration information is used to instruct the terminal to transmit the sounding reference signal on the beam corresponding to the beam index information.

  In addition, the master base station further transmits uplink measurement configuration information to the millimeter wave base station, the uplink measurement configuration information includes second beam index information, and the uplink measurement configuration information includes the second beam index information. Used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the index information.

  The master base station or base station controller may specify that the decision millimeter wave base station measures the power of the decision terminal's sounding reference signal. Specifically, the master base station or the base station controller commands the terminal to transmit the SRS on the beam corresponding to the beam index information, and corresponds to the determined beam index information (second beam index information). Commands the millimeter wave base station to measure the sounding reference signal of the terminal on the beam. The second beam index information in this embodiment of the present invention and the seventh beam index information in the embodiment corresponding to FIG. 9 have the same function.

  After measuring the power of the sounding reference signal transmitted by the terminal, the millimeter wave base station transmits the measurement result of the sounding reference signal to the base station controller. Before the millimeter wave base station communicates with the terminal, the base station controller determines whether to serve the terminal according to the power of the sounding reference signal transmitted by the terminal. Alternatively, in the process where the millimeter wave base station communicates with the terminal, the base station controller determines whether to continue serving the terminal according to the power of the sounding reference signal transmitted by the terminal. For example, if the power of the sounding reference signal transmitted by the terminal is less than the threshold, it indicates that the terminal is no longer suitable for communicating with the millimeter wave base station, and the base station controller To the master base station to update the set of millimeter wave base stations serving the terminal. If the power of the sounding reference signal transmitted by the terminal is not less than the threshold, no detection report is transmitted.

  In conclusion, according to the method provided in this embodiment of the present invention, the master base station configures beam index information corresponding to the millimeter wave band for the terminal, so that the terminal performs cellular communication. Solves the problems in the prior art that sometimes the available bandwidth is relatively small, expand the frequency range of terminal communication, increase the data transmission rate of the terminal, the millimeter wave between the terminal and millimeter wave base station In order to reduce signal fading and distortion during communication and reduce interference between users on the same channel, the terminal uses a beam corresponding to the beam index information to allow the millimeter wave corresponding to the millimeter wave band. Communicate with the base station.

  Referring to FIG. 11, FIG. 11 shows a method flowchart of a millimeter wave cellular communication method according to an embodiment of the present invention. The millimeter wave base station corresponding to the millimeter wave communication method may be the base station in the embodiment shown in FIG. The base station in the embodiment shown in FIG. 5 can implement the following steps of the method.

  Step 1102: The millimeter wave base station configures beam index information corresponding to the millimeter wave band for the terminal, and the beam index information corresponds to the millimeter wave band by using the beam corresponding to the beam index information. Used to instruct the terminal to communicate with the millimeter wave base station.

Specifically, the millimeter wave base station may transmit a radio resource reconfiguration message or broadcast message including beam index information to the terminal, or the millimeter wave base station negotiates with the terminal to obtain the beam index information. May be determined.

  In addition, the millimeter wave base station may further receive a measurement report transmitted by the terminal, and the measurement report is received by the terminal according to a beam corresponding to the first beam index information included in the beam index information. It is a measurement report transmitted by the terminal according to the measurement result of the RRM measurement after performing the measurement. The millimeter wave base station sends a measurement report to the base station controller, the measurement report determines the millimeter wave base station for sending data to the terminal, and beam index information used to send the data to the terminal Used to instruct the base station controller to

  The first beam index information in this embodiment of the present invention and the second beam index information in the above embodiment corresponding to FIG. 9 have the same function.

  In addition, the millimeter wave base station may further transmit the sounding reference signal configuration information of the cells on the millimeter wave band to the terminal, and the sounding reference signal configuration information is transmitted on the beam corresponding to the beam index information. Used to instruct the terminal to send a signal.

  In some cases, the millimeter wave base station receives a random access preamble transmitted by the terminal on a beam corresponding to the second beam index information used as a physical random access channel resource.

  In some cases, the millimeter wave base station transmits a random access response message on the beam corresponding to the second beam index information.

  The random access response message includes the third beam guide information.

  In some cases, the millimeter wave base station receives a random access message on a beam corresponding to the third beam index information, and the random access message includes an identifier of the terminal.

  In some cases, the millimeter wave base station transmits a contention resolution message on the beam corresponding to the third beam index, and the contention resolution message includes a terminal identifier.

  The terminal identifier is the cell radio network temporary identifier C-RNTI of the terminal or the system architecture evolution temporary mobile station identifier S-TMSI.

  The terminal may perform random access to the millimeter wave base station according to the second beam index information in the beam index information. Random access may be a non-contention based random access process or may be a contention based random access process. For the random access method of determination, reference may be made to the description in the embodiment corresponding to FIG. 9, and details are not described herein again. The second beam index information in this embodiment of the present invention and the fifth beam index information in the above embodiment corresponding to FIG. 9 have the same function. The third beam index information in this embodiment of the present invention and the sixth beam index information in the above embodiment corresponding to FIG. 9 have the same function.

  In some cases, the millimeter wave base station receives uplink measurement configuration information transmitted by a master base station or a base station controller, and the uplink measurement configuration information includes fourth beam index information.

  In some cases, the millimeter wave base station measures the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the fourth beam index information.

  In some cases, the millimeter wave base station is the power of the sounding reference signal and sends a measurement result including the power obtained by the measurement to the base station controller, where the power of the sounding reference signal is a preset power threshold. Is greater than the measurement result is used to instruct the base station controller to instruct the millimeter wave base station to prepare to communicate with the terminal.

  The fourth beam index information in this embodiment of the present invention and the seventh beam index information in the above embodiment corresponding to FIG. 9 have the same function.

  The master base station or base station controller may specify that the decision millimeter wave base station measures the power of the decision terminal's sounding reference signal. Specifically, the master base station or the base station controller commands the terminal to transmit the SRS on the beam corresponding to the beam index information, and corresponds to the determined beam index information (fourth beam index information). Commands the millimeter wave base station to measure the sounding reference signal of the terminal on the beam.

  After measuring the power of the sounding reference signal transmitted by the terminal, the millimeter wave base station transmits the measurement result of the sounding reference signal to the base station controller. Before the millimeter wave base station communicates with the terminal, the base station controller determines whether to serve the terminal according to the power of the sounding reference signal transmitted by the terminal. Alternatively, in the process where the millimeter wave base station communicates with the terminal, the base station controller determines whether to continue serving the terminal according to the power of the sounding reference signal transmitted by the terminal. For example, if the power of the sounding reference signal transmitted by the terminal is less than the threshold, it indicates that the terminal is no longer suitable for communicating with the millimeter wave base station, and the base station controller To the master base station to update the set of millimeter wave base stations serving the terminal. If the power of the sounding reference signal transmitted by the terminal is not less than the threshold, no detection report is transmitted.

  In conclusion, according to the method provided in this embodiment of the present invention, the millimeter wave base station solves the problem in the prior art that the available bandwidth when the terminal performs cellular communication is relatively small. Expand the frequency range of terminal communication, increase the data transmission rate of the terminal, reduce signal fading and distortion during millimeter wave communication between the terminal and millimeter wave base station, between users on the same channel In order to reduce interference, it communicates with the terminal by using the beam corresponding to the beam index information corresponding to the millimeter wave band.

  Referring to FIG. 12, FIG. 12 shows a method flowchart of a millimeter wave cellular communication method according to an embodiment of the present invention. The base station controller corresponding to the millimeter wave communication method may be the base station controller in the embodiment shown in FIG. The base station controller in the embodiment shown in FIG. 7 can implement the following steps of the method.

  Step 1202: The base station controller transmits uplink measurement configuration information to the millimeter wave base station, the uplink measurement configuration information includes beam index information, and the uplink measurement configuration information is transmitted on a beam corresponding to the beam index information. , Used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal.

  Step 1204: The base station controller receives a measurement result transmitted by the millimeter wave base station, which is the power of the sounding reference signal and includes the power obtained by the measurement.

  Step 1206: When the power of the sounding reference signal is greater than a preset power threshold, the base station controller commands the millimeter wave base station to prepare to communicate with the terminal.

  The terminal communicates with the millimeter wave base station corresponding to the millimeter wave band by using the beam index information corresponding to the millimeter wave band.

  The master base station or base station controller may specify that the decision millimeter wave base station measures the power of the decision terminal's sounding reference signal. Specifically, the master base station or base station controller commands the terminal to transmit an SRS on the beam corresponding to the beam index information, and the terminal's sounding reference signal on the beam corresponding to the determined beam index information. The millimeter wave base station is instructed to measure The beam index information in this embodiment of the present invention and the seventh beam index information in the above embodiment corresponding to FIG. 9 have the same function.

  After measuring the power of the sounding reference signal transmitted by the terminal, the millimeter wave base station transmits the measurement result of the sounding reference signal to the base station controller. Before the millimeter wave base station communicates with the terminal, the base station controller determines whether to serve the terminal according to the power of the sounding reference signal transmitted by the terminal. Alternatively, in the process where the millimeter wave base station communicates with the terminal, the base station controller determines whether to continue serving the terminal according to the power of the sounding reference signal transmitted by the terminal. For example, if the power of the sounding reference signal transmitted by the terminal is less than the threshold, it indicates that the terminal is no longer suitable for communicating with the millimeter wave base station, and the base station controller To the master base station to update the set of millimeter wave base stations serving the terminal. If the power of the sounding reference signal transmitted by the terminal is not less than the threshold, no detection report is transmitted.

  In addition, the base station controller may further receive a measurement report transmitted by the millimeter wave base station, wherein the measurement report is a terminal according to a beam corresponding to the first beam index information included in the beam index information. Is a measurement report transmitted by the terminal according to the measurement result of the RRM measurement after performing the RRM measurement.

  The base station controller determines a millimeter wave base station for transmitting data to the terminal and beam index information used to transmit data to the terminal according to the measurement report.

  In conclusion, according to the millimeter-wave cellular communication method provided in this embodiment of the present invention, the base station controller measures the terminal's sounding reference signal on the beam corresponding to the determined beam index information. Command the wave base station, so that the terminal solves the problem in the prior art that the available bandwidth when the terminal performs cellular communication is relatively small, expands the frequency range of terminal communication, To the millimeter wave band to increase data transmission rate, reduce signal fading and distortion during millimeter wave communication between the terminal and millimeter wave base station, and reduce interference between users on the same channel Communication is performed on the beam corresponding to the corresponding beam index information.

  One skilled in the art can appreciate that all or some of the steps of the embodiments may be implemented by hardware or a program that instructs the associated hardware. The program may be stored on a computer readable storage medium. The storage medium can be a read-only memory, a magnetic disk, or an optical disk.

  The above descriptions are merely examples of embodiments of the present invention and do not limit the present invention. Any modification, equivalent replacement, and improvement made without departing from the spirit and principle of the present invention should fall within the protection scope of the present invention.

100 terminals
101 processor
102 memory
103 Transmitter
104 Receiver
105 bus
201 Receiver module
202 Communication module
203 Measurement module
204 Transmission module
205 Decision Module
206 Access module
300 base stations
301 processor
302 memory
303 transmitter
304 receiver
305 bus
401 configuration module
402 Transmission module
403 Negotiation module
404 receiving module
405 decision module
500 base station
501 processor
502 memory
503 transmitter
504 receiver
505 bus
601 configuration module
602 transmitter module
603 Negotiation module
604 receiver module
605 measurement module
700 base station controller
701 processor
702 memory
703 transmitter
704 receiver
705 bus
801 transmission module
802 receiving module
803 instruction module
804 decision module

Claims (84)

A terminal comprising a bus and a processor, a memory, a transmitter, and a receiver connected to the bus, wherein the memory is configured to store a number of instructions, the number of instructions being the processor Configured to be executed by
The processor is
Controlling the receiver to obtain beam index information corresponding to a millimeter wave band;
A terminal configured to communicate with a millimeter wave base station corresponding to the millimeter wave band by using a beam corresponding to the beam index information. The processor controls the receiver to receive a radio resource reconfiguration message or broadcast message transmitted by a master base station or the millimeter wave base station, and is provided in the radio resource reconfiguration message or the broadcast message. The beam index information is further configured, or the processor is further configured to negotiate with the master base station or the millimeter wave base station to agree on the beam index information;
The master base station and the millimeter wave base station are the same base station or different base stations;
The terminal according to claim 1. The processor is further configured to select a beam corresponding to some or all of the beam index information in the beam index information and communicate with the millimeter wave base station, or the processor Determine first beam index information in the index information and designated by the master base station or the millimeter wave base station, and communicate with the millimeter wave base station according to a beam corresponding to the first beam index information Further configured as
The terminal according to claim 2.   Each portion of the beam index information corresponds to information about one precoding codebook or information about one group of antenna weights, or each of the beam indexes is information about a plurality of precoding codebooks Or corresponding to information about multiple groups of antenna weights, each precoding codebook or information about each group of antenna weights uniquely determines a beam. Terminal. Each part of the beam index information corresponds to a coverage area of one sector or one cell, or each part of the beam index information corresponds to a part of the coverage area of one sector or one cell. ,
The beam index information is 1-level index information or N-level index information, N is an integer, and N ≧ 2.
When the beam index information is the N-level index information, the i-th level index information in the beam index information is associated with the (i + 1) -th level index information, and the (i + 1) -th level index information. The beam coverage area corresponding to the index information is not larger than the beam coverage area corresponding to the i-th level index information, i is an integer, and 2 ≦ i ≦ N.
The terminal according to any one of claims 1 to 3. The beam index information comprises second beam index information used for radio resource management RRM measurement;
The processor is
RRM measurement is performed according to the beam corresponding to the second beam index information to obtain a first measurement result, wherein the first measurement result is a reference signal received power RSRP and / or a reference signal Receiving with reception quality RSRQ; and
Controlling the transmitter to transmit a first measurement report to the master base station or the millimeter wave base station according to the first measurement result, wherein the first measurement report includes the following information: : Beam index information having the highest RSRP and / or highest RSRQ, RSRP measurement result and / or RSRQ measurement result on the beam corresponding to the beam index information having the highest RSRP and / or highest RSRQ, highest RSRP And / or frequency information where the beam index information having the highest RSRQ is located, serving cell information associated with the beam index information having the highest RSRP and / or highest RSRQ, or highest RSRP and / or highest RSRQ Neighbors associated with the beam index information having Comprising at least one of Le information is further configured to perform the controlling,
The serving cell information or the neighboring cell information is indicated by using a physical cell identifier PCI and / or cell global identification information CGI.
The terminal according to claim 1 or 2. The beam index information further comprises third beam index information used for candidate RRM measurement;
The processor is preconfigured when the RSRP provided for the first measurement result is less than a preconfigured threshold and / or the RSRQ provided for the first measurement result; When configured to perform an RRM measurement according to a beam corresponding to the third beam index information when less than a threshold value;
The terminal according to claim 6. The beam index information further comprises fourth beam index information used for intra-frequency measurements;
The processor is
Controlling the receiver to obtain measurement gap period information associated with the fourth beam index information;
Performing in-frequency measurements on the millimeter wave band in accordance with the beam corresponding to the fourth beam index information within the measurement gap indicated by the measurement gap period information. Item 7. The terminal according to Item 6. The processor is further configured to communicate with the millimeter wave base station on the beam corresponding to the beam index information having the highest RSRP and / or highest RSRQ;
The terminal according to claim 6. The processor is
Determining, from the beam index information, fifth beam index information used as a physical random access channel resource;
The terminal according to claim 1 or 2, further configured to perform random access according to a beam corresponding to the fifth beam index information. The processor is further configured to select a portion of beam index information from the beam index information as the fifth beam index information, or the processor is in the beam index information and the physical random Further configured to determine beam index information designated by the master base station or the millimeter wave base station as an access channel resource as the fifth beam index information,
The terminal according to claim 10. The processor is
Controlling the transmitter to transmit a random access preamble on the beam corresponding to the fifth beam index information;
Receiving a random access response message on the beam corresponding to the fifth beam index information or controlling the receiver to receive a random access response message on the beam corresponding to the beam index information The terminal of claim 10, further configured to: The random access response message comprises sixth beam guide information;
The processor is
Controlling the transmitter to transmit a random access message on a beam corresponding to the sixth beam index information, the random access message comprising an identifier of the terminal;
Receiving a contention resolution message on the beam corresponding to the sixth beam index or controlling the receiver to receive a contention resolution message on the beam corresponding to the beam index information. The contention resolution message comprises the identifier of the terminal and is further configured to control,
The identifier of the terminal is a cell radio network temporary identifier C-RNTI of the terminal or a system architecture evolution temporary mobile station identifier S-TMSI.
The terminal according to claim 12. The processor is
Controlling the receiver to receive sounding reference signal configuration information transmitted by the master base station or the millimeter wave base station, which is sounding reference signal configuration information of a cell on the millimeter wave band;
And further configured to control the transmitter to transmit a sounding reference signal on the beam corresponding to the beam index information according to the sounding reference signal configuration information.
The terminal according to claim 1. A receiving module configured to obtain beam index information corresponding to a millimeter wave band;
And a communication module configured to communicate with a millimeter wave base station corresponding to the millimeter wave band by using a beam corresponding to the beam index information. The receiving module is
Receiving a radio resource reconfiguration message or broadcast message transmitted by a master base station or the millimeter wave base station;
Obtaining the beam index information included in the radio resource reconfiguration message or the broadcast message,
The communication module is further configured to negotiate with the master base station or the millimeter wave base station to agree on the beam index information;
The master base station and the millimeter wave base station are the same base station or different base stations;
The terminal according to claim 15. The communication module is
Selecting a beam corresponding to a part or all of the beam index information in the beam index information and communicating with the millimeter wave base station; or in the beam index information, the master base station or the millimeter wave Further configured to determine first beam index information specified by a base station and to communicate with the millimeter wave base station according to a beam corresponding to the first beam index information;
The terminal according to claim 16.   Each portion of the beam index information corresponds to information about one precoding codebook or information about one group of antenna weights, or each of the beam indexes is information about a plurality of precoding codebooks Or corresponding to information about a plurality of groups of antenna weights, each precoding codebook or information about each group of antenna weights uniquely determines a beam. Terminal. Each part of the beam index information corresponds to a coverage area of one sector or one cell, or each part of the beam index information corresponds to a part of the coverage area of one sector or one cell. ,
The beam index information is 1-level index information or N-level index information, N is an integer, and N ≧ 2.
When the beam index information is the N-level index information, the i-th level index information in the beam index information is associated with the (i + 1) -th level index information, and the (i + 1) -th level index information. The beam coverage area corresponding to the index information is not larger than the beam coverage area corresponding to the i-th level index information, i is an integer, and 2 ≦ i ≦ N.
The terminal according to any one of claims 15 to 17. The beam index information comprises second beam index information used for radio resource management RRM measurement, the terminal,
A measurement module configured to perform RRM measurement according to a beam corresponding to the second beam index information and obtain a first measurement result, wherein the first measurement result is a reference signal received power A measurement module with RSRP and / or reference signal reception quality RSRQ;
A transmission module configured to transmit a first measurement report to the master base station or the millimeter wave base station according to the first measurement result, wherein the first measurement report includes the following information: Beam index information having a high RSRP and / or highest RSRQ, RSRP measurement result and / or RSRQ measurement result on the beam corresponding to the beam index information having the highest RSRP and / or highest RSRQ, and the highest RSRP and / or Or frequency information where the beam index information having the highest RSRQ is located, serving cell information associated with the beam index information having the highest RSRP and / or highest RSRQ, or having the highest RSRP and / or highest RSRQ Neighbors associated with the beam index information Comprising at least one of Le information, further comprising a transmission module,
The serving cell information or the neighboring cell information is indicated by using a physical cell identifier PCI and / or cell global identification information CGI.
The terminal according to claim 15 or 16. The beam index information further comprises third beam index information used for candidate RRM measurement, the measurement module comprising:
When the RSRP provided in the first measurement result is smaller than a preconfigured threshold and / or the RSRQ provided in the first measurement result is less than a preconfigured threshold; 21. The terminal of claim 20, further configured to start performing RRM measurement according to a beam corresponding to the third beam index information when small. The beam index information further comprises fourth beam index information used for intra-frequency measurements;
The receiving module is further configured to obtain measurement gap period information associated with the fourth beam index information;
The measurement module is further configured to perform an intra-frequency measurement on the millimeter wave band according to a beam corresponding to the fourth beam index information within a measurement gap indicated by the measurement gap period information;
The terminal according to claim 20. The communication module is further configured to communicate with the millimeter wave base station on the beam corresponding to the beam index information having the highest RSRP and / or highest RSRQ by the terminal;
The terminal according to claim 20. A determination module configured to determine, from the beam index information, fifth beam index information used as a physical random access channel resource;
The terminal according to claim 15 or 16, further comprising an access module configured to perform random access according to a beam corresponding to the fifth beam index information. The determination module specifically selects one part of beam index information from the beam index information as the fifth beam index information, or is in the beam index information, and the physical random access channel resource is the 25. The terminal according to claim 24, configured to determine beam index information designated by a master base station or the millimeter wave base station as the fifth beam index information. The transmission module is further configured to transmit a random access preamble on the beam corresponding to the fifth beam index information;
The receiving module is
Further configured to receive a random access response message on the beam corresponding to the fifth beam index information, or to receive a random access response message on the beam corresponding to the beam index information. The terminal according to claim 24. The random access response message comprises sixth beam guide information;
The transmission module is further configured to transmit a random access message on a beam corresponding to the sixth beam index information, the random access message comprising an identifier of the terminal;
The receiving module is
Receiving the contention resolution message on the beam corresponding to the sixth beam index, or receiving the contention resolution message on the beam corresponding to the beam index information; A resolution message comprises the identifier of the terminal;
The identifier of the terminal is a cell radio network temporary identifier C-RNTI of the terminal or a system architecture evolution temporary mobile station identifier S-TMSI.
The terminal according to claim 26. The receiving module is sounding reference signal configuration information of cells on the millimeter wave band and is further configured to receive sounding reference signal configuration information transmitted by the master base station or the millimeter wave base station;
The transmission module is further configured to transmit a sounding reference signal on the beam corresponding to the beam index information according to the sounding reference signal configuration information;
The terminal according to claim 15. A base station comprising a bus and a processor, a memory, a transmitter, and a receiver connected to the bus, wherein the memory is configured to store a number of instructions, Configured to be executed by a processor,
The processor is configured to configure beam index information corresponding to a millimeter wave band for the terminal, and the beam index information uses the beam corresponding to the beam index information to Used to instruct the terminal to communicate with a corresponding millimeter wave base station,
base station. The processor is further configured to control the transmitter to transmit a radio resource reconfiguration message or broadcast message comprising the beam index information to the terminal, or the processor negotiates with the terminal; And further configured to determine the beam index information,
30. The base station according to claim 29. The processor is
Controlling the receiver to receive a measurement report transmitted by the terminal, the measurement report according to a beam corresponding to first beam index information provided in the beam index information, After the terminal performs the RRM measurement, controlling the report transmitted by the terminal according to the measurement result of the RRM measurement;
Further configured to determine, according to the measurement report, the millimeter wave base station for transmitting data to the terminal and beam index information used to transmit data to the terminal.
The base station according to claim 29 or 30. The processor is further configured to control the transmitter to transmit sounding reference signal configuration information of cells on the millimeter wave band to the terminal, and the sounding reference signal configuration information is included in the beam index information. Used to instruct the terminal to transmit a sounding reference signal on the corresponding beam;
The base station according to claim 29 or 30. The processor is further configured to control the transmitter to transmit uplink measurement configuration information to the millimeter wave base station, the uplink measurement configuration information comprising second beam index information; Link measurement configuration information is used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the second beam index information.
The base station according to claim 29 or 30. A base station,
For a terminal, comprising a configuration module configured to configure beam index information corresponding to a millimeter wave band, wherein the beam index information uses a beam corresponding to the beam index information, Used to instruct the terminal to communicate,
base station. Further comprising: a transmission module configured to transmit a radio resource reconfiguration message or broadcast message comprising the beam index information to the terminal, or the base station negotiates with the terminal to determine the beam index information Further comprising a negotiation module configured to:
The base station according to claim 34. A receiving module configured to receive a measurement report transmitted by the terminal, wherein the terminal reports the measurement report according to a beam corresponding to the first beam index information included in the beam index information. A receiver module, which is a report sent by the terminal according to the measurement result of the RRM measurement after performing the RRM measurement;
Further comprising: a millimeter wave base station for transmitting data to the terminal according to the measurement report; and a determination module configured to determine beam index information used to transmit data to the terminal. 36. A base station according to claim 34 or 35. The transmission module is further configured to transmit sounding reference signal configuration information of cells on the millimeter wave band to the terminal, and the sounding reference signal configuration information is sounded on the beam corresponding to the beam index information. Used to instruct the terminal to transmit a reference signal;
36. A base station according to claim 34 or 35. The transmission module is further configured to transmit uplink measurement configuration information to the millimeter wave base station, the uplink measurement configuration information comprises second beam index information, and the uplink measurement configuration information includes the Used to instruct the millimeter wave base station to measure the power of a sounding reference signal transmitted by the terminal on a beam corresponding to second beam index information;
36. A base station according to claim 34 or 35. A base station comprising a bus and a processor, a memory, a transmitter, and a receiver connected to the bus, wherein the memory is configured to store a number of instructions, Configured to be executed by a processor,
The processor is configured to configure beam index information corresponding to a millimeter wave band for a terminal, and the beam index information communicates with the base station by using a beam corresponding to the beam index information. Used to instruct the terminal to
base station. The processor is further configured to control the transmitter to transmit a radio resource reconfiguration message or broadcast message comprising the beam index information to the terminal, or the processor negotiates with the terminal; And further configured to determine the beam index information,
40. A base station according to claim 39. The processor is
Controlling the receiver to receive a measurement report transmitted by the terminal, the measurement report according to a beam corresponding to first beam index information provided in the beam index information, After the terminal performs the RRM measurement, the measurement report transmitted by the terminal according to the measurement result of the RRM measurement, controlling,
Controlling the transmitter to transmit the measurement report to a base station controller, wherein the measurement report transmits data to the terminal and a millimeter wave base station for transmitting data to the terminal Used to instruct the base station controller to determine beam index information used to control
41. A base station according to claim 39 or 40. The processor is further configured to control the transmitter to transmit sounding reference signal configuration information of cells on the millimeter wave band to the terminal, and the sounding reference signal configuration information is included in the beam index information. Used to instruct the terminal to transmit a sounding reference signal on the corresponding beam;
41. A base station according to claim 39 or 40. The processor is
Controlling the receiver to receive a random access preamble transmitted by the terminal on a beam corresponding to second beam index information used as a physical random access channel resource;
And further configured to control the transmitter to transmit a random access response message on the beam corresponding to the second beam index information,
40. A base station according to claim 39. The random access response message comprises third beam guide information;
The processor is
Controlling the receiver to receive a random access message on a beam corresponding to the third beam index information, the random access message comprising an identifier of the terminal;
Controlling the transmitter to transmit a contention resolution message on the beam corresponding to the third beam index, wherein the contention resolution message comprises the identifier of the terminal. Further configured to do and
The identifier of the terminal is a cell radio network temporary identifier C-RNTI of the terminal or a system architecture evolution temporary mobile station identifier S-TMSI.
44. A base station according to claim 43. The processor is
Control the receiver to receive uplink measurement configuration information transmitted by a master base station or the base station controller, wherein the uplink measurement configuration information comprises fourth beam index information To do
Measuring the power of the sounding reference signal transmitted by the terminal on the beam corresponding to the fourth beam index information;
Controlling the transmitter to transmit a measurement result comprising the power obtained by measurement to the base station controller, wherein the power of the sounding reference signal is determined in advance. When the measurement result is greater than a set power threshold, the measurement result is used to instruct the base station controller to instruct the millimeter wave base station to prepare to communicate with the terminal; Further configured to control and
45. A base station according to any one of claims 39 to 44. For a terminal, comprising a configuration module configured to configure beam index information corresponding to a millimeter wave band, wherein the beam index information uses the beam corresponding to the beam index information, so that the millimeter wave band Used to instruct the terminal to communicate with a millimeter wave base station corresponding to
base station. Further comprising: a transmission module configured to transmit a radio resource reconfiguration message or broadcast message comprising the beam index information to the terminal, or the base station negotiates with the terminal to determine the beam index information Further comprising a negotiation module configured to:
The base station according to claim 46. The base station is
A receiving module configured to receive a measurement report transmitted by the terminal, wherein the terminal reports the measurement report according to a beam corresponding to the first beam index information included in the beam index information. And further comprising a receiving module that is a measurement report transmitted by the terminal according to a measurement result of the RRM measurement after performing the RRM measurement,
The transmission module is further configured to transmit the measurement report to a base station controller, the measurement report transmitting the millimeter wave base station for transmitting data to the terminal and the data to the terminal Used to instruct the base station controller to determine beam index information used in
48. A base station according to claim 46 or 47. The transmission module is further configured to transmit sounding reference signal configuration information of cells on the millimeter wave band to the terminal, and the sounding reference signal configuration information is sounded on the beam corresponding to the beam index information. Used to instruct the terminal to transmit a reference signal;
48. A base station according to claim 46 or 47. The receiving module is further configured to receive a random access preamble transmitted by the terminal on a beam corresponding to second beam index information used as a physical random access channel resource;
The transmission module is further configured to transmit a random access response message on the beam corresponding to the second beam index information;
The base station according to claim 46. The random access response message comprises third beam guide information;
The receiving module is further configured to receive a random access message on a beam corresponding to the third beam index information, the random access message comprising an identifier of the terminal;
The transmission module is further configured to transmit a contention resolution message on the beam corresponding to the third beam index, the contention resolution message comprising the identifier of the terminal;
The identifier of the terminal is a cell radio network temporary identifier C-RNTI of the terminal or a system architecture evolution temporary mobile station identifier S-TMSI.
51. A base station according to claim 50. The receiving module is further configured to receive uplink measurement configuration information transmitted by a master base station or the base station controller, the uplink measurement configuration information comprising fourth beam index information;
The base station further comprises a measurement module configured to measure power of the sounding reference signal transmitted by the terminal on a beam corresponding to the fourth beam index information;
The transmission module is further configured to transmit a measurement result comprising the power of the sounding reference signal and comprising the power obtained by measurement, wherein the power of the sounding reference signal is a preset power threshold The measurement result is used to instruct the base station controller to instruct the millimeter wave base station to prepare to communicate with the terminal,
52. A base station according to any one of claims 46 to 51. A base station controller comprising a bus and a processor, memory, transmitter, and receiver connected to the bus, wherein the memory is configured to store a number of instructions, the number of instructions being Configured to be executed by the processor;
The processor is
Controlling the transmitter to transmit uplink measurement configuration information to a millimeter wave base station, wherein the uplink measurement configuration information comprises beam index information, and the uplink measurement configuration information comprises the beam index. Used to instruct the millimeter wave base station to measure the power of a sounding reference signal transmitted by the terminal on a beam corresponding to information; and
Controlling the receiver to receive a measurement result transmitted by the millimeter wave base station, which is the power of the sounding reference signal and comprising the power obtained by measurement;
Instructing the millimeter wave base station to prepare to communicate with the terminal when the power of the sounding reference signal is greater than a preset power threshold;
The terminal communicates with a millimeter wave base station corresponding to the millimeter wave band by using the beam index information corresponding to the millimeter wave band.
Base station controller. The processor is
Controlling the receiver to receive a measurement report transmitted by the millimeter wave base station, wherein the measurement report includes a beam corresponding to first beam index information included in the beam index information. According to the control, after the terminal performs RRM measurement, the measurement report transmitted by the terminal according to the measurement result of the RRM measurement,
Further configured to determine, according to the measurement report, the millimeter wave base station for transmitting data to the terminal and beam index information used to transmit data to the terminal.
54. A base station controller according to claim 53. A transmission module configured to transmit uplink measurement configuration information to a millimeter wave base station, wherein the uplink measurement configuration information comprises beam index information, and the uplink measurement configuration information is included in the beam index information. A transmission module used to instruct the millimeter wave base station to measure the power of a sounding reference signal transmitted by the terminal on a corresponding beam;
A receiving module configured to receive a measurement result transmitted by the millimeter wave base station, the power of the sounding reference signal, the measurement result comprising the power obtained by measurement;
An instruction module configured to instruct the millimeter wave base station to prepare to communicate with the terminal when the power of the sounding reference signal is greater than a preset power threshold;
The terminal communicates with a millimeter wave base station corresponding to the millimeter wave band by using the beam index information corresponding to the millimeter wave band.
Base station controller. The receiving module is further configured to receive a measurement report transmitted by the millimeter wave base station, the measurement report according to a beam corresponding to the first beam index information provided in the beam index information, After the terminal performs RRM measurement, a measurement report transmitted by the terminal according to the measurement result of the RRM measurement,
The base station controller is configured to determine the millimeter wave base station for transmitting data to the terminal and beam index information used to transmit data to the terminal according to the measurement report Further comprising a decision module;
56. A base station controller according to claim 55. Acquiring beam index information corresponding to a millimeter wave band by a terminal;
Communicating with a millimeter wave base station corresponding to the millimeter wave band by using a beam corresponding to the beam index information by the terminal. The step of acquiring beam index information corresponding to a millimeter wave band by a terminal,
Controlling the receiver to receive a radio resource reconfiguration message or broadcast message transmitted by a master base station or the millimeter wave base station, and the beam index information included in the radio resource reconfiguration message or broadcast message; Or negotiating with a master base station or the millimeter wave base station to agree on the beam index information,
The master base station and the millimeter wave base station are the same base station or different base stations;
58. The method of claim 57. The step of communicating with the millimeter wave base station corresponding to the millimeter wave band by using the beam corresponding to the beam index information by the terminal,
Selecting a beam corresponding to a part or all of the beam index information in the beam index information and communicating with the millimeter wave base station, or in the beam index information, the master base station or the millimeter wave 59. The method of claim 58, comprising determining first beam index information specified by a base station and communicating with the millimeter wave base station according to a beam corresponding to the first beam index information.   Each portion of the beam index information corresponds to information about one precoding codebook or information about one group of antenna weights, or each of the beam indexes is information about a plurality of precoding codebooks Or corresponding to information about a plurality of groups of antenna weights, each precoding codebook or information about each group of antenna weights uniquely determining a beam. Method. Each part of the beam index information corresponds to a coverage area of one sector or one cell, or each part of the beam index information corresponds to a part of the coverage area of one sector or one cell. ,
The beam index information is 1-level index information or N-level index information, N is an integer, and N ≧ 2.
When the beam index information is the N-level index information, the i-th level index information in the beam index information is associated with the (i + 1) -th level index information, and the (i + 1) -th level index information. The beam coverage area corresponding to the index information is not larger than the beam coverage area corresponding to the i-th level index information, i is an integer, and 2 ≦ i ≦ N.
60. A method according to any one of claims 57 to 59. The beam index information comprises second beam index information used for radio resource management RRM measurement, the method comprising:
The terminal performs RRM measurement according to the beam corresponding to the second beam index information and obtains a first measurement result, wherein the first measurement result is a reference signal received power RSRP and And / or comprising a reference signal reception quality RSRQ;
Transmitting a first measurement report by the terminal to the master base station or the millimeter wave base station according to the first measurement result, wherein the first measurement report includes the following information: highest RSRP And / or beam index information having the highest RSRQ, RSRP measurement results and / or RSRQ measurement results on the beam corresponding to the beam index information having the highest RSRP and / or the highest RSRQ, highest RSRP and / or most Frequency information where the beam index information having a high RSRQ is located, serving cell information associated with the beam index information having the highest RSRP and / or highest RSRQ, or the beam having the highest RSRP and / or highest RSRQ Neighbor cell information associated with index information Comprising at least one of, further comprising the steps,
The serving cell information or the neighboring cell information is indicated by using a physical cell identifier PCI and / or cell global identification information CGI.
59. A method according to claim 57 or 58. The beam index information further comprises third beam index information used for candidate RRM measurements, the method comprising:
When the RSRP provided in the first measurement result is smaller than a preconfigured threshold and / or the RSRQ provided in the first measurement result is less than a preconfigured threshold; 64. The method of claim 62, further comprising, when small, starting to perform RRM measurement according to a beam corresponding to the third beam index information by the terminal. The beam index information further comprises fourth beam index information used for intra-frequency measurements, the method comprising:
Obtaining measurement gap period information associated with the fourth beam index information by the terminal;
Further comprising: performing, by the terminal, an in-frequency measurement on the millimeter wave band according to a beam corresponding to the fourth beam index information within a measurement gap indicated by the measurement gap period information. The method according to 62. The step of communicating with the millimeter wave base station corresponding to the millimeter wave band by using the beam corresponding to the beam index information by the terminal,
64. The method of claim 62, comprising communicating with the millimeter wave base station on the beam corresponding to the beam index information having the highest RSRP and / or highest RSRQ by the terminal. Determining, by the terminal, fifth beam index information used as a physical random access channel resource from the beam index information;
59. The method of claim 57 or 58, further comprising: performing random access by the terminal according to a beam corresponding to the fifth beam index information. The step of determining, from the beam index information, fifth beam index information used as a physical random access channel resource by the terminal,
Selecting one portion of beam index information from the beam index information as the fifth beam index information, or the master base station or the millimeter wave base station in the beam index information as the physical random access channel resource 68. The method of claim 66, comprising determining the beam index information specified by as the fifth beam index information. The step of performing random access according to a beam corresponding to the fifth beam index information by the terminal,
Transmitting a random access preamble on the beam corresponding to the fifth beam index information;
Receiving a random access response message on the beam corresponding to the fifth beam index information or receiving a random access response message on the beam corresponding to the beam index information. The method described in 1. The random access response message comprises sixth beam guide information, the method comprising:
Transmitting by the terminal a random access message on a beam corresponding to the sixth beam index information, the random access message comprising an identifier of the terminal;
Receiving, by the terminal, a contention resolution message on the beam corresponding to the sixth beam index or receiving a contention resolution message on the beam corresponding to the beam index information, the contention Further comprising a resolution message comprising the identifier of the terminal;
The identifier of the terminal is a cell radio network temporary identifier C-RNTI of the terminal or a system architecture evolution temporary mobile station identifier S-TMSI.
69. The method of claim 68. Receiving sounding reference signal configuration information transmitted by the master base station or the millimeter wave base station, which is sounding reference signal configuration information of a cell on the millimeter wave band by the terminal;
58. The method of claim 57, further comprising: transmitting, by the terminal, a sounding reference signal on the beam corresponding to the beam index information according to the sounding reference signal configuration information. A step of configuring beam index information corresponding to a millimeter wave band for a terminal by a master base station, wherein the beam index information uses a beam corresponding to the beam index information, so that the millimeter wave band A method of millimeter wave cellular communication comprising the steps of instructing the terminal to communicate with a millimeter wave base station corresponding to The step of configuring beam index information corresponding to a millimeter wave band for a terminal by a master base station,
72. The method of claim 71, comprising: transmitting a radio resource reconfiguration message or broadcast message comprising the beam index information to the terminal; or negotiating with the terminal to determine the beam index information. Receiving a measurement report transmitted by the terminal by the master base station, wherein the measurement report is transmitted according to a beam corresponding to first beam index information included in the beam index information; A measurement report sent by the terminal according to a measurement result of the RRM measurement after performing the RRM measurement, and
Determining, by the master base station, the millimeter wave base station for transmitting data to the terminal according to the measurement report, and beam index information used for transmitting data to the terminal. 73. A method according to claim 71 or 72. The method comprises
Transmitting, to the terminal, sounding reference signal configuration information of a cell on the millimeter wave band by the master base station, wherein the sounding reference signal configuration information is sounded on the beam corresponding to the beam index information. 73. A method according to claim 71 or 72, further comprising the step used to instruct the terminal to transmit a reference signal. The method comprises
Transmitting uplink measurement configuration information to the millimeter wave base station by the master base station, wherein the uplink measurement configuration information comprises second beam index information, and the uplink measurement configuration information is the The method further comprises the step used to instruct the millimeter wave base station to measure the power of a sounding reference signal transmitted by the terminal on a beam corresponding to second beam index information. The method according to 71 or 72. A step of configuring beam index information corresponding to a millimeter wave band for a terminal by a millimeter wave base station, wherein the beam index information uses a beam corresponding to the beam index information, so that the millimeter wave A millimeter wave cellular communication method comprising the steps of instructing the terminal to communicate with a millimeter wave base station corresponding to a band. The step of configuring the beam index information corresponding to the millimeter wave band for the terminal by the millimeter wave base station,
77. The method of claim 76, comprising transmitting a radio resource reconfiguration message or broadcast message comprising the beam index information to the terminal, or negotiating with the terminal to determine the beam index information. Receiving a measurement report transmitted by the terminal by the millimeter wave base station, wherein the measurement report is in accordance with a beam corresponding to first beam index information included in the beam index information; Is a measurement report sent by the terminal according to a measurement result of the RRM measurement after performing RRM measurement, and
Transmitting the measurement report to a base station controller by the millimeter wave base station, the measurement report transmitting data to the millimeter wave base station for transmitting data to the terminal and to the terminal; 78. The method of claim 76 or 77, further comprising: used to instruct the base station controller to determine beam index information used for the purpose. The method comprises
Transmitting, to the terminal, sounding reference signal configuration information of a cell on the millimeter wave band by the millimeter wave base station, wherein the sounding reference signal configuration information is transmitted on the beam corresponding to the beam index information. 78. A method according to claim 76 or 77, further comprising the step used to instruct the terminal to transmit a sounding reference signal. Receiving, by the millimeter wave base station, a random access preamble transmitted by the terminal on a beam corresponding to second beam index information used as a physical random access channel resource;
77. The method of claim 76, further comprising: transmitting, by the millimeter wave base station, a random access response message on the beam corresponding to the second beam index information. The random access response message comprises third beam guide information, the method comprising:
Receiving, by the millimeter wave base station, a random access message on a beam corresponding to the third beam index information, the random access message comprising an identifier of the terminal;
Further comprising, by the millimeter wave base station, transmitting a contention resolution message on the beam corresponding to the third beam index, wherein the contention resolution message comprises the identifier of the terminal;
The identifier of the terminal is a cell radio network temporary identifier C-RNTI of the terminal or a system architecture evolution temporary mobile station identifier S-TMSI.
81. The method of claim 80. Receiving, by the millimeter wave base station, uplink measurement configuration information transmitted by a master base station or the base station controller, wherein the uplink measurement configuration information comprises fourth beam index information; and ,
Measuring power of the sounding reference signal transmitted by the terminal on the beam corresponding to the fourth beam index information by the millimeter wave base station;
Transmitting to the base station controller a measurement result comprising the power of the sounding reference signal by the millimeter wave base station and comprising the power obtained by measurement, wherein the power of the sounding reference signal is preset. The measurement result is used to instruct the base station controller to instruct the millimeter wave base station to prepare to communicate with the terminal when the power threshold is greater than 82. The method of any one of claims 76 to 81, further comprising: A step of transmitting uplink measurement configuration information to a millimeter wave base station by a base station controller, wherein the uplink measurement configuration information comprises beam index information, and the uplink measurement configuration information corresponds to the beam index information. Used to instruct the millimeter wave base station to measure the power of the sounding reference signal transmitted by the terminal on the beam to be
Receiving, by the base station controller, a measurement result transmitted by the millimeter wave base station, which is the power of the sounding reference signal and comprising the power obtained by measurement;
Instructing the millimeter wave base station to prepare to communicate with the terminal by the base station controller when the power of the sounding reference signal is greater than a preset power threshold;
The terminal communicates with a millimeter wave base station corresponding to the millimeter wave band by using the beam index information corresponding to the millimeter wave band.
Millimeter wave cellular communication method. Receiving a measurement report transmitted by the millimeter wave base station by the base station controller, wherein the measurement report is in accordance with a beam corresponding to the first beam index information provided in the beam index information; A measurement report sent by the terminal according to a measurement result of the RRM measurement after the terminal performs RRM measurement; and
Determining, by the base station controller, the millimeter wave base station for transmitting data to the terminal according to the measurement report and beam index information used for transmitting data to the terminal. 84. The method of claim 83.

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