CN108243508A

CN108243508A - A kind of resource allocation method, method for sending information, base station and terminal

Info

Publication number: CN108243508A
Application number: CN201611206676.1A
Authority: CN
Inventors: 孙立新; 丁颖哲; 周明宇; 路杨
Original assignee: Baicells Technologies Co Ltd
Current assignee: Baicells Technologies Co Ltd
Priority date: 2016-12-23
Filing date: 2016-12-23
Publication date: 2018-07-03
Also published as: WO2018113739A1

Abstract

The present invention provides a kind of resource allocation method, method for sending information, base station and terminal, the resource allocation method, applied to the first base station belonging to first community, including：For distributing the configuration parameter information of the Physical Random Access Channel resource of first community rationally, the configuration parameter information includes for acquisition：The resource allocation information of MulteFire short physical random access channel MF sPRACH of the adjacent cell of first community and/or the random access channel RACH information of first community；According to the configuration parameter information, the Physical Random Access Channel resource of the first community is configured.The embodiment of the present invention improves the preamble detection performances of cell, improves the probability of success of cell random access.

Description

Resource allocation method, information sending method, base station and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a resource allocation method, an information sending method, a base station, and a terminal.

Background

MulteFire (MF for short) is a new Long Term Evolution (LTE) based wireless access technology that can operate independently in unlicensed spectrum without the help of licensed band carriers. In order to fairly occupy the unlicensed band channel with other unlicensed band devices (e.g., WiFi devices), i.e., to avoid mutual interference between the unlicensed band devices, the MulteFire physical layer introduces a Listen-Before-Talk (LBT) mechanism of a carrier sensing technology similar to WiFi. When the base station or the terminal monitors that the unlicensed frequency band channel is occupied, namely LBT fails, the signal is stopped being sent, and when the channel is monitored to be idle, namely LBT succeeds, the signal is sent.

In order to improve the transmission efficiency of the downlink common control Signal of the base station under the LBT mechanism, MulteFire introduces a Discovery Reference Signal (DRS), where the DRS includes main downlink common control signals including System broadcast, Primary Synchronization Signal (PSS), enhanced Primary synchronization Signal (ePSS), enhanced Secondary synchronization Signal (eSSS), Cell Reference Signal (CRS), Primary System Information Block (MIB), and enhanced System Information Block (SIB-MF), and the DRS occupies 12 or 14 symbols (Symbol) in one downlink subframe. The terminal may receive the DRS for downlink synchronization, receive the MIB and the SIB-MF within a Discovery Signal Measurement Configuration (DMTC) window.

The MF provides Network architectures of two basic access modes, which are a Public Land Mobile Network (PLMN) access mode and a Neutral Host Network (NHN) access mode. The NHN Access mode is a neutral Network with unified planning and self-organization newly introduced by MulteFire, one NHN can be shared to a plurality of Service providers at the same time, an MF (Radio Access Network) is connected to a Core Network (CN, Core Network) of the NHN, and an NH Network ID (NHN-ID) and a Service Provider Identity (PSP-ID) are sent in a broadcast message of an MF cell. Currently, the terminal is not supported to switch between the MF network in the NHN access mode and the 3GPP network. The PLMN access mode is a network mode in which the MF RAN is connected to a 3GPP CN of a mobile operator, and a User Equipment (terminal) may perform S1 or X2 handover between the MF RAN in the PLMN access mode and the 3GPP RAN, and send a PLMN ID list in a broadcast message of the MF cell. In addition, there is a hybrid access mode where the MF RAN is connected to both the NHN CN and the 3GPP CN, and the NHN-ID, the PSP-ID and the PLMN ID list are broadcast simultaneously in a broadcast message of the MF cell.

In the prior art, an LTE base station may optimize random access resources according to physical random access channel resource configuration of an adjacent LTE cell or according to random access information of a serving cell. However, the physical random access channel resource allocation and the random access information of the MF cell are different from those of the LTE cell, and the prior art cannot optimize the random access resource according to the physical random access channel resource allocation information or the random access information of the MF cell, that is, cannot optimize the random access resource according to the physical random access channel resource allocation and the random access information of the MF cell. The MF cell has public physical random access channel resource allocation, and the terminal can send Preamble on the physical random access channel resource to initiate random access. If a cell is adjacent to an MF cell and has the same physical random access channel resource allocation, a Preamble signal sent by a terminal in the cell will interfere with a Preamble signal sent by a terminal in the adjacent MF cell, and in case of serious conditions, the Preamble detection performance will be greatly reduced, which affects the random access success rate; or, when the local cell is the MF cell, the base station cannot perform random access resource optimization according to the random access information of the MF cell, which affects the random access success rate of the local cell.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a resource allocation method, an information sending method, a base station and a terminal, which are used to solve the problem that random access resource optimization cannot be performed according to physical random access channel resource allocation or random access information of an MF cell in the existing MF system, so that preamble detection performance is reduced, and random access success probability is affected.

In order to solve the foregoing technical problem, an embodiment of the present invention provides a resource allocation method applied to a first base station to which a first cell belongs, including:

acquiring configuration parameter information for optimally configuring physical random access channel resources of a first cell, wherein the configuration parameter information comprises: resource configuration information of a MulteFire short physical random access channel (MF-sRACH) of a neighbor cell of a first cell and/or Random Access Channel (RACH) information of the first cell;

and configuring the physical random access channel resource of the first cell according to the configuration parameter information.

An embodiment of the present invention provides a first base station, including:

an obtaining module, configured to obtain configuration parameter information for optimally configuring a physical random access channel resource of a first cell, where the configuration parameter information includes: resource configuration information of a MulteFire short physical random access channel (MF-sRACH) of a neighbor cell of a first cell and/or Random Access Channel (RACH) information of the first cell;

a configuration module, configured to configure the physical random access channel resource of the first cell according to the configuration parameter information.

a receiver, configured to obtain configuration parameter information for optimally configuring physical random access channel resources of a first cell, where the configuration parameter information includes: resource configuration information of a MulteFire short physical random access channel (MF-sRACH) of a neighbor cell of a first cell and/or Random Access Channel (RACH) information of the first cell;

a processor connected with the receiver and used for realizing the following functions:

The embodiment of the invention also provides an information sending method, which is applied to a second base station and comprises the following steps:

sending resource configuration information of a MulteFire short physical random access channel (MF-sPRACH) of a neighboring cell of a first cell under a first base station to the first base station through a preset interface message;

wherein the resource configuration information includes: at least one of the MF-sPRACH frequency domain resource block position, the number of frequency domain resource blocks occupied by the MF-sPRACH and the Listen Before Talk (LBT) type of the MF-sPRACH;

the preset interface message is an X2 interface message or an S1 interface message.

An embodiment of the present invention further provides a second base station, including:

a first sending module, configured to send resource configuration information of a MulteFire short physical random access channel MF-sPRACH of a neighboring cell of a first cell in a first base station to the first base station through a preset interface message;

a transmitter, configured to send resource configuration information of a MulteFire short physical random access channel MF-sPRACH of a neighboring cell of a first cell under a first base station to the first base station through a preset interface message;

The embodiment of the invention also provides an information sending method, which is applied to a terminal and comprises the following steps:

sending Random Access Channel (RACH) information of a first cell to a first base station;

wherein the first cell is a Multefire cell, and the RACH information includes: the terminal listens to and then speaks the number of LBT failures when randomly accessing in the first cell;

the first cell is a cell served by the first base station.

An embodiment of the present invention further provides a terminal, including:

the second sending module is used for sending the random access channel RACH information of the first cell to the first base station;

the first cell is a cell served by the first base station.

An embodiment of the present invention further provides a terminal, including:

a transmitter for transmitting random access channel, RACH, information of a first cell to a first base station;

the first cell is a cell served by the first base station.

The technical scheme of the invention at least has the following beneficial effects:

in the resource allocation method, the information sending method, the base station and the terminal of the embodiment of the invention, the random access resource is optimized according to the physical random access channel resource allocation or the random access information of the MF cell, so that the preamble detection performance of the cell is improved, and the success probability of the cell random access is improved.

Drawings

FIG. 1 is a flowchart illustrating a resource allocation method according to a first embodiment of the present invention;

FIG. 2 is a flowchart illustrating a resource allocation method according to a second embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a communication process between a first base station and a second base station when an X2 interface exists between the first base station and the second base station;

fig. 4 is a schematic diagram illustrating a communication process between a first base station and a second base station when an X2 interface does not exist between the first base station and the second base station;

FIG. 5 is a flowchart illustrating a resource allocation method according to a third embodiment of the present invention;

fig. 6 is a block diagram of a first base station according to a fourth embodiment of the present invention;

fig. 7 is a configuration diagram of a first base station according to a fifth embodiment of the present invention.

Detailed Description

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

The invention provides a resource allocation method, an information sending method, a base station and a terminal, aiming at the problems that in the existing MF system, the physical random access channel resource can not be optimized according to the physical random access channel resource allocation or the random access information of an MF cell, the preamble detection performance is reduced, and the random access success probability is influenced.

The Uplink and Downlink resources in MF are in units of interlaces, one interlace is 10 resource blocks (RBs, resource blocks), one Physical Downlink Control Channel (PDCCH)/Physical Uplink Shared Channel (PUSCH)/Physical Downlink Shared Channel (PDSCH) of MF occupies at least one interlace, each multi-layer short Physical Random Access Channel (MF-rach, MF short Physical Random Access Channel) may occupy one or two interlaces in Frequency domain, and the last 4 Orthogonal Frequency division multiplexing (OFDM, Orthogonal Frequency division multiplexing) symbols of the time domain occupied subframe may have multiple subframes on MF-s p. The terminal uses MF-sPRACH resource to send Preamble (Preamble) for random access, the current MF Preamble format is only MF-Preamble format 0, and MF-sPCH format 0 sequence is used. The terminal may perform LBT before sending the preamble on the MF-sPRACH resource, and send the preamble when the LBT succeeds, or directly send the preamble on the MF-sPRACH resource without performing LBT.

Different MF-sPRACH resources are distinguished by frequency domain positions, time domain positions and code domain resources, one system frame may have a plurality of MF-sPRACH subframes, and a PRACH Configuration Index (physical random access channel Configuration Index) configured by the base station to the terminal is used for indicating the time domain positions of the MF-sPRACH, as shown in table 1.

TABLE 1 time domain resource location for MF-sPRACH

There may be multiple MF-sPRACHs at the same time domain position, an MF-PRACH Frequency domain Index (MF-PRACH-Frequency Index) configured by the base station to the terminal is used to indicate the Frequency domain position of the MF-sPRACH, the MF-PRACH-Frequency _ Index is a bit string with the length of 10, where when the K-th bit is 1, it indicates that the starting interlace of one MF-sPRACH is the K-th interlace. Each MF-sPRACH occupies 1 or 2 resource blocks (interlaces).

The same time frequency resource may have a plurality of MF-sPRACH code domain resources, and the MF Preamble sequence consists of a root Zadoff-Chu sequence q, a sequence group number u, a sequence number v in the group andbase sequence of (1)And (4) generating. 64 preamble sequences are generated by performing an Orthogonal Convolutional Code (OCC) cyclic shift on the motif sequence. The length of the zero correlation region of the MF-preamble format 0 is N_CS-1. The logical ROOT SEQUENCE number RACH _ ROOT _ SEQUENCE and zero Correlation Zone configuration (zero Correlation Zone configuration) configured by the base station to the terminal determine the code domain resource of the MF-splach, specifically, the logical ROOT SEQUENCE number is used to determine the physical ROOT SEQUENCE q, and the zero Correlation Zone configuration is used to determine the Ncs. The correspondence between RACH _ ROOT _ SEQUENCE and q is shown in table 2.

TABLE 2RACH _ ROOT _ SEQUENCE and q correspondence table

q	3	4	7	8	10	11	14	15	18	19	21	22	25	26	29	30	32	33	36	37
																					u	0	0	1	1	2	2	3	3	4	4	5	5	6	6	7	7	8	8	9	9
v	1	0	0	1	1	0	1	0	0	1	1	0	1	0	0	1	1	0	0	1
																					q	40	41	43	44	47	48	51	52	54	55	58	59	61	62	65	66	69	70	72	73
u	10	10	11	11	12	12	13	13	14	14	15	15	16	16	17	17	18	18	19	19
																					v	0	1	1	0	0	1	0	1	1	0	0	1	1	0	1	0	0	1	1	0
q	76	77	80	81	83	84	87	88	91	92	94	95	98	99	102	103	105	106	109	110
																					u	20	20	21	21	22	22	23	23	24	24	25	25	26	26	27	27	28	28	29	29
v	1	0	0	1	1	0	0	1	0	1	1	0	0	1	0	1	1	0	0	1

TABLE 3 table of correspondence between group number u and intra-group number v of physical root sequence q

Zero Correlation Zone Config	N_CS value(N_CSValue)
		0	1
1	2
		2	3
3	4
		4	6
5	12
		6	N/A
7	N/A
		8	N/A
9	N/A
		10	N/A
11	N/A
		12	N/A
13	N/A
		14	N/A
15	N/A

Table 4 correspondence between zero correlation region arrangement and Ncs

Table 3 is a correspondence table between the group number u and the intra-group number v of the physical root sequence q, and table 4 is a correspondence table between the zero correlation area allocation and the Ncs.

First embodiment

As shown in fig. 1, a first embodiment of the present invention provides a resource allocation method applied to a first base station to which a first cell belongs, including:

step 11, obtaining configuration parameter information for optimally configuring physical random access channel resources of a first cell;

wherein the configuration parameter information includes: resource configuration information of a MulteFire short physical Random access channel (MF-sRACH) of a neighbor cell of the first cell and/or Random Access Channel (RACH) information of the first cell; the resource configuration information of the adjacent cell MF-srrach of the first cell may be acquired by the first base station from the second base station, or acquired by the first base station from the information reported by the terminal; the RACH information of the first cell is statistical information related to random access when the terminal performs random access in the first cell.

And step 12, configuring the physical random access channel resource of the first cell according to the configuration parameter information.

In the embodiment of the invention, the random access resource is optimized according to the physical random access channel resource configuration or the random access information of the MF cell, so that the preamble detection performance of the adjacent cell is improved, and the success probability of cell random access is improved.

The following are included from the configuration parameter information, respectively: the resource configuration information and the configuration parameter information of the MF-sPRACH of the neighboring cell of the first cell include RACH information of a random access channel of the first cell, and a resource configuration method according to an embodiment of the present invention is described in detail as follows.

Second embodiment

As shown in fig. 2, a second embodiment of the present invention provides a resource allocation method, applied to a first base station to which a first cell belongs, including:

step 21, obtaining resource configuration information of MF-sPRACH of a neighboring cell of the first cell, wherein the resource configuration information includes: at least one of the MF-sPRACH frequency domain resource block position, the number of frequency domain resource blocks occupied by the MF-sPRACH and the Listen Before Talk (LBT) type of the MF-sPRACH;

it should be noted that the first cell generally refers to a serving cell of the first base station, i.e., a cell served by the first base station, and a neighboring cell of the first cell generally does not belong to a cell under the first base station (i.e., a neighboring cell of the first cell belongs to a cell under another base station adjacent to the first base station). The frequency domain resource block position of the MF-sPRACH, the number of frequency domain resource blocks occupied by the MF-sPRACH and the LBT type of the MF-sPRACH of the adjacent cell of the first cell are indicated to the terminal by the system broadcast message.

Step 22, configuring the physical random access channel resource of the first cell according to the resource configuration information;

it should be noted that, configuring the physical random access channel resource of the first cell herein mainly means configuring, according to at least one of the MF-sPRACH frequency domain resource block position and the frequency domain resource block number occupied by the MF-sPRACH in the resource configuration information, that the frequency domain resource occupied by the physical random access channel resource of the first cell is different from that occupied by the neighboring cell of the first cell, so as to avoid mutual interference caused by the fact that the frequency domain resource of the physical random access channel of the first cell is the same as the MF-sPRACH frequency domain resource of the neighboring cell; and/or

And configuring the LBT type of the physical random access channel of the first cell to be the same as the LBT type of the MF-sPRACH of the adjacent cell of the first cell according to the LBT type of the MF-sPRACH in the resource configuration information.

The LBT type of the MF-sPRACH is used for indicating whether the terminal carries out LBT on the MF-sPRACH resource. The reason why the LBT type of the physical random access channel of the first cell is configured to be the same as the LBT type of the MF-sPRACH of the adjacent cell is to ensure that the first cell and the adjacent cell have the same channel access priority, and avoid the interference of the cell without LBT on the MF-sPRACH on the cell without LBT, which affects the random access fairness among different cells.

In this embodiment, the serving cell of the base station acquires the resource configuration of the MF-sPRACH of the adjacent MF cell, so that the base station can optimize the random access resource of the cell according to the resource configuration of the MF-sPRACH of the adjacent MF cell, thereby improving the Preamble detection performance of the cell and improving the random access success rate of the terminal in the cell.

Optionally, the first implementation manner of step 21 is:

and acquiring a preset interface message sent by the second base station, and acquiring the resource configuration information of the MF-sPRACH of the adjacent cell of the first cell from the preset interface message.

It should be noted that the preset interface message may be an X2 interface message or an S1 interface message. The neighboring cell of the first cell may be a serving cell of the second base station, or may be a neighboring cell of the serving cell of the second base station.

In this first implementation manner, the first base station acquires resource configuration information of MF-sPRACH of a neighboring cell of the first cell from the second base station, in general, the second base station is an MF base station (a base station serving a MulteFire cell), the first base station may be an MF base station or an LTE base station (a base station serving an LTE cell), the second base station may send resource configuration information of MF-sPRACH of all MF cells served by the second base station and MF-sPRACH resource configuration of the MF neighboring cell of the served cell to the first base station, and because the first base station can clearly obtain which neighboring cells of the first cell are, the first base station can select the resource configuration information of MF-sPRACH of the neighboring cell of the first cell from the received configuration information.

An X2 interface exists between the first base station and the second base station

When there is an X2 interface between the first base station and the second base station, this step 21 includes, in particular:

acquiring an X2 interface message sent by the second base station;

acquiring resource configuration information of MF-sPRACH of a neighbor cell of a first cell from physical random access channel configuration information of a serving cell of the second base station, which is contained in the X2 interface message; and/or

Acquiring configuration information of MF-sPRACH of a neighbor cell of a first cell from the physical random access channel configuration information of the neighbor cell of the second base station serving cell of the X2 interface message;

wherein the X2 interface message comprises an X2setup request message, an X2setup response message, an eNB configuration update message, or an eNB configuration update response message.

Specifically, the first base station may receive an X2 interface message sent by the second base station, so as to obtain resource configuration information of the MF-srrach of a neighboring cell of the first cell. Specifically, when the first base station requests to establish an X2 interface with the second base station, the first base station may send an X2Setup Request (X2Setup Request) message to the second base station, and then the second base station sends an X2Setup Response (X2Setup Response) message to the first base station in Response to the X2Setup Request message, specifically, the communication process is as shown in fig. 3, and it is to be noted that resource configuration information of an MF-sPRACH of a neighboring cell of the first cell is included in physical random access channel configuration information included in serving cell information of the X2Setup Response message, or is included in physical random access channel configuration information included in neighboring cell information of the serving cell; it should be noted that, in this case, the resource configuration information of the MF-srpcran of the neighboring cell of the first cell is included in the physical random access channel configuration information included in the serving cell information of the X2setup request message, or included in the physical random access channel configuration information included in the neighboring cell information of the serving cell.

After an X2 interface is established between the first base station and the second base station, the first base station may receive an X2 interface message sent by the second base station, so as to obtain resource configuration information of the MF-sPRACH of a neighboring cell of the first cell, specifically, after the first base station and the second base station establish an X2 interface, the first base station sends an eNB configuration UPDATE (eNB configuration UPDATE) message to the second base station, and the second base station sends an eNB configuration UPDATE response (eNB configuration UPDATE) message to the first base station in response to the eNB configuration UPDATE message, where it is to be noted that the resource configuration information of the MF-sPRACH of the neighboring cell of the first cell is included in the physical random access channel configuration information included in the serving cell information of the eNB configuration UPDATE response, or is included in the physical random access channel configuration information included in the neighboring cell information of the serving cell; specifically, after the first base station and the second base station establish an X2 interface, the second base station sends an eNB configuration update message to the first base station, and the first base station sends an eNB configuration update response message to the second base station in response to the eNB configuration update message.

It should be further noted that, when the neighboring cell of the first cell is an MF cell in the NHN access mode, the NHN-ID and the evolved universal terrestrial radio access network cell global Identifier (ECGI) of the neighboring cell of the first cell need to be carried in the X2setup response message/X2 setup request message and the base station configuration update response message/base station configuration update message.

In the embodiment, two ways of obtaining at least one of the position of the frequency domain resource block of the MF-sPRACH and the number of the frequency domain resource blocks occupied by the MF-sPRACH are provided.

The method comprises the steps of directly acquiring the position of an MF-sPRACH frequency domain resource block and the number of frequency domain resource blocks occupied by the MF-sPRACH through a newly added MF-sPRACH frequency domain resource block position field and an MF-sPRACH frequency domain resource block number field in physical random access channel configuration information.

The new MF-sPRACH frequency domain resource block position field in the physical random access channel configuration information indicates the frequency domain position of the MF-sPRACH, which is indicated to a terminal by a neighboring cell of a first cell through a system broadcast message, the field is a bit string with the length of 10, when the Kth bit is set to be 1, the starting position of the MF-sPRACH frequency domain resource block is the Kth resource block, and other bits are set to be 0; the field of the number of frequency domain resource blocks occupied by the newly added MF-sRACH in the physical random access channel configuration information indicates the number of the MF-sRACH resource blocks which are indicated to the terminal by the adjacent cell of the first cell through the system broadcast message, and the value of the field is 1 or 2.

And secondly, acquiring the position of the MF-sPRACH frequency domain resource block and the number of the frequency domain resource blocks occupied by the MF-sPRACH through the original frequency offset field of the physical random access channel in the configuration information of the physical random access channel.

According to the formula: k is PRACH-frequency offset mod 10, and the position of an MF-sPRACH frequency domain resource block is obtained;

according to the formula: obtaining the number of frequency domain resource blocks occupied by the MF-sPRACH, wherein the PRACH-NumInterlaces is 1+ (floor ((PRACH-frequency offset mod20)/10) mod 2);

the method comprises the steps that K represents the position of an MF-sPRACH frequency domain resource block, PRACH-NumInterlaces represents the number of frequency domain resource blocks occupied by the MF-sPRACH, floor (×) is a down-rounding function, PRACH-frequency offset is the frequency offset field value of a physical random access channel in physical random access channel configuration information, and mod represents the remainder of dividing two numbers.

And the second base station calculates the frequency offset of the physical random access channel according to the frequency domain resource block position of the MF-sPRACH of the adjacent cell of the first cell and the number of the frequency domain resource blocks occupied by the MF-sPRACH by the formula and sends the frequency offset of the physical random access channel to the first base station through a frequency offset field of the physical random access channel in the configuration information of the physical random access channel.

It is worth noting that the first base station judges whether the resource configuration information contained in the physical random access Channel configuration information is MF-sRACH or not through an E-UTRA absolute radio Frequency Channel Number (EARFCN, E-UTRA Absolute radio Frequency Channel Number) parameter, if the EARFCN in the serving cell information is a special EARFCN of MF, the first base station judges that the resource configuration information contained in the physical random access Channel configuration information is MF-sRACH, and calculates the MF-sRACH Frequency domain resource block position and the Frequency domain resource block Number occupied by the MF-sRACH according to the above relational expression by the physical random access Channel Frequency offset field value.

In a possible implementation manner, since the second manner does not add a new field in the original physical random access channel configuration Information Element (IE) and can only indicate the frequency domain position of one MF-sPRACH, if there is only one MF-sPRACH in the frequency domain and the first base station is an LTE base station (the first base station may not be able to resolve the frequency domain resource block position of the newly added field MF-sPRACH and the number of frequency domain resource blocks occupied by the MF-sPRACH), the second base station may adopt the second manner, that is, the frequency offset field of the original physical random access channel in the physical random access channel configuration Information indicates the frequency domain resource block position of the MF-sPRACH and the number of frequency domain resource blocks occupied by the MF-sPRACH at the same time.

Further, if the resource configuration information of the MF-srrach of the neighboring cell of the first cell further includes one or more of a zero correlation region configuration of the MF-srrach, a preamble root sequence of the MF-srrach, and a time domain resource location of the MF-srrach, the manner of acquiring the zero correlation region configuration of the MF-srrach, the preamble root sequence of the MF-srrach, and the time domain resource location of the MF-srrach is as follows:

respectively acquiring the zero correlation region configuration of the MF-sRACH, the leading root sequence of the MF-sRACH and the time domain resource position of the MF-sRACH through an original zero correlation region configuration field, a root sequence index field and a time domain resource position field of the physical random access channel in the physical random access channel configuration information; the zero correlation area configuration field, the root sequence index field and the physical random access channel time domain resource position field respectively indicate the zero correlation area configuration of the cell MF-sRACH, the preamble root sequence of the MF-sRACH and the time domain resource position of the MF-sRACH, which are indicated to the terminal by the adjacent cell of the first cell through the system broadcast message.

Optionally, a format of the physical random access channel Configuration information is shown in table 5, where PRACH-frequency Index and PRACH-NumInterlaces are respectively an MF-sPRACH frequency domain resource block location field and a frequency domain resource block number field occupied by MF-sPRACH, Root Sequence Index is a Root Sequence Index field, Zero Correlation ZoneConfiguration is a Zero Correlation region Configuration field, PRACH-frequency offset is a physical random access channel frequency offset field, and PRACH-Configuration Index is a physical random access channel time domain resource location field.

Table 5 format of physical random access channel configuration information

Second, there is no X2 interface between the first base station and the second base station

When there is no X2 interface between the first base station and the second base station, the implementation manner of step 21 is:

acquiring an S1 interface message sent by the second base station;

acquiring resource configuration information of MF-sPRACH of a neighbor cell of a first cell from the physical random access channel configuration information of the serving cell of the second base station, which is included in the S1 interface message; and/or

And acquiring the resource configuration information of the MF-sPRACH of the neighboring cell of the first cell from the physical random access channel configuration information of the neighboring cell of the serving cell of the second base station, which is included in the S1 interface message.

Specifically, when there is no X2 interface between the first base station and the second base station, the first base station may receive, through an S1 interface message, resource configuration information of MF-sPRACH of a neighboring cell of the first cell, where the resource configuration information is sent by the second base station. It should be noted that the first base station may be an MF base station, an LTE base station, a WCDMA base station, a TD-SCDMA base station, a GSM base station, or the like, and the second base station is an MF base station.

For example, the first base station and the second base station are LTE base stations or MF base stations, when there is no X2 interface between the first base station and the second base station, in order to acquire resource Configuration Information of MF-sPRACH of neighboring cells of the first cell, the first base station transmits an eNB Configuration Transfer (eNB Configuration Transfer) message to a Mobility Management Entity (MME) to request resource Configuration Information of MF-sPRACH transmitted by the second base station, and then receives resource Configuration Information of MF-sPRACH of neighboring cells of the first cell of the first base station, which is forwarded by the MME, of the neighboring cells of the first base station through an MME Configuration Transfer (MME Configuration Transfer) message, wherein the resource Configuration Information is included in new cell addition Information of a Self-organizing network response (SON Configuration) service message of a Self-organizing network Information Configuration Transfer (SON Configuration) message forwarded by the MME, it should be noted that, in order to smoothly acquire the resource configuration information of the MF-sPRACH, a request parameter of the resource configuration information of the MF-sPRACH is added to a self-organizing network information request (SON information request) message of the self-organizing network configuration Transfer (SON configuration Transfer) in an eNB configuration Transfer message sent by the first base station to the MME or an MME configuration Transfer message sent by the MME to the second base station, so that the first base station requests the second base station to send the resource configuration information of the MF-sPRACH, and a specific communication procedure is as shown in fig. 4.

The format of the SON Information field in the SON Configuration Transfer is shown in table 6:

table 6 format of SON Information field in SON Configuration Transfer, wherein the coding format of SON Information Reply is shown in table 7:

TABLE 7 coding format of SON Information repeat

Or, the first base station directly receives, through an MME CONFIGURATION TRANSFER message, resource CONFIGURATION Information of MF-srfach of a neighboring Cell of the first Cell, which is transmitted by the second base station and forwarded by the MME, where the resource CONFIGURATION Information of MF-srfach is included in PRACHconfiguration of Serving Cell Information of a newly added field of the Son CONFIGURATION TRANSFER field. The format of the Son Configuration Transfer field is shown in table 8:

TABLE 8Son Configuration Transfer field

TABLE 9Serving Cell Information Format

Table 9 is a format table of the Serving Cell Information.

Under the condition that no X2 interface exists between the first base station and the second base station, the manner of obtaining the frequency domain resource block position of MF-sRACH and the number of resource blocks occupied by MF-sRACH is similar to the case that an X2 interface exists between the first base station and the second base station, and the manner of obtaining the zero correlation region configuration of MF-sRACH, the preamble root sequence of MF-sRACH, and the time domain resource position of MF-sRACH is similar to the case that an X2 interface exists between the first base station and the second base station, which is not described herein again, and in this case, the format of the physical random access channel configuration information is the same as that in table 5.

Optionally, a second implementation manner of step 21 is:

in a Radio Resource Control (RRC) measurement report message of a neighbor cell of a first cell sent by a terminal, acquiring resource configuration information of MF-sRACH of the neighbor cell of the first cell.

The realization mode is as follows: the terminal reads resource configuration information of MF-sPRACH contained in a broadcast message of a neighbor cell system of a first cell, and sends the resource configuration information to the first base station through an RRC measurement report message. The first base station may instruct the terminal to report the resource configuration information of the MF-sPRACH of the target cell by sending an RRC measurement configuration message to the terminal, for example, the first base station sets a measurement destination field in the RRC measurement configuration message as a report global cell identity (report CGI) to instruct the terminal to report the resource configuration information of the MF-sPRACH of the target cell while reporting the CGI. Wherein, the target Cell is indicated by Physical Cell Identity (PCI) in the RRC measurement configuration message; or, setting the measurement purpose to report the resource configuration information of the MF-sPRACH in the RRC measurement configuration message so as to instruct the terminal to report the configuration information of the MulteFire short physical random access channel of the target cell; further, the first base station may further instruct, through the system broadcast read time indication information, the terminal to autonomously determine a measurement time Gap (Gap) for reading the system broadcast message of the target cell in the presence of the service, that is, the terminal reads the system broadcast message (including the resource configuration information of the MF-strach) of the target cell when the terminal stops the ongoing service at the measurement Gap.

Optionally, a third implementation manner of step 21 is:

and acquiring resource configuration information of the MF-sPRACH of the neighbor cell of the first cell in the received system broadcast message of the neighbor cell of the first cell.

The realization mode is as follows: the first base station directly receives downlink signals of adjacent cells of the first cell, and reads system broadcast messages of the adjacent cells to acquire resource configuration information of the MF-sPRACH of the adjacent cells.

Specifically, in the embodiment of the present invention, a specific implementation manner of step 22 is as follows: configuring the frequency domain resources occupied by the physical random access channel resources of the first cell to be different from the frequency domain resources occupied by the adjacent cells of the first cell according to at least one of the MF-sPRACH frequency domain resource block position and the MF-sPRACH frequency domain resource block number in the resource configuration information; and/or

It should be noted that, when the first base station sets that the physical random access channel resource of the first cell and the MF-sPRACH of the neighboring cell occupy different frequency domain resources, the MF-sPRACH frequency domain resource blocks of the first cell and the neighboring cell are at different positions, and it is ensured that the different resource blocks are occupied.

It should be noted that, in order to avoid that the resource configuration of the physical random access channel of the first cell and the neighboring cell is completely the same and causes random access channel interference between different cells, when the resource configuration information includes a frequency domain resource block location of MF-srrach, a number of frequency domain resource blocks occupied by MF-srrach, a zero correlation region configuration of MF-srrach, a preamble root sequence of MF-srrach, and a time domain resource location of MF-srrach, the step of configuring the physical random access channel resource of the first cell according to the configuration parameter information includes:

and configuring at least one of frequency domain resources, time domain resources and code domain resources occupied by physical random access channel resources of the first cell to be different from the occupation of adjacent cells of the first cell according to the MF-sPRACH frequency domain resource block position, the number of frequency domain resource blocks occupied by the MF-sPRACH, the zero correlation region configuration of the MF-sPRACH, the leader root sequence of the MF-sPRACH and the MF-sPRACH time domain resource position in the resource configuration information.

It should be noted that, if the time domain resource occupied by the physical random access channel of the first cell is the same as that occupied by its neighboring cells, even if the occupied frequency domain and code domain resources are different, LBT failure may occur when some terminals perform random access because terminals in different cells perform random access at the same time, and the random access success rate is reduced. Therefore, the first base station can preferentially configure the time domain resource position occupied by the physical random access channel resource of the first cell to be different from the time domain resource position occupied by the adjacent cell of the first cell, so as to avoid the random access success rate reduction brought by the LBT. When the resource configuration information includes an MF-splach time domain resource location, an MF-splach frequency domain resource block location, the number of frequency domain resource blocks occupied by the MF-splach, a zero correlation region configuration of the MF-splach, and a preamble root sequence of the MF-splach, the step of configuring the physical random access channel resource of the first cell according to the configuration parameter information includes:

according to the MF-sPRACH time domain resource position in the resource configuration information, configuring the time domain resource occupied by the physical random access channel resource of the first cell to be different from the time domain resource occupied by the adjacent cell of the first cell; or,

and configuring the time domain resources occupied by the physical random access channel resources of the first cell to be the same as those occupied by the adjacent cells of the first cell according to the MF-sPRACH time domain resource position in the resource configuration information, and configuring at least one of the frequency domain resources and the code domain resources occupied by the physical random access channel resources of the first cell to be different from those occupied by the adjacent cells of the first cell according to the MF-sPRACH frequency domain resource block position, the frequency domain resource block number occupied by the MF-sPRACH, the MF-sPRACH zero correlation region configuration and the MF-sPRACH leader root sequence in the resource configuration information.

The zero correlation area configuration and the root sequence index are mainly used for setting code domain resources of physical random access channel resources.

Further, in order to make the first cell and its neighboring cells have the same channel access priority, and avoid that a cell that does not perform LBT on MF-sPRACH causes interference to a cell that performs LBT, affecting fairness of random access between different cells, the first base station may configure that a time domain resource occupied by a physical random access channel resource of the first cell is the same as that occupied by a neighboring cell of the first cell, and configure that an LBT type of the physical random access channel of the first cell is the same as that of the MF-sPRACH of the neighboring cell of the first cell.

According to the embodiment of the invention, the service cell of the base station acquires the physical random access channel resource allocation of the adjacent MF cells, so that the base station can optimize the physical random access channel resource of the service cell according to the physical random access channel resource allocation of the adjacent MF cells, the Preamble detection performance of the cell is improved, and the random access success rate of the cell is improved.

Third embodiment

As shown in fig. 5, a third embodiment of the present invention provides a resource allocation method, which is applied to a first base station to which a first cell belongs.

It should be noted that, in this embodiment, the first base station refers specifically to an MF base station, that is, the first cell is an MF cell, and the resource allocation method includes:

step 51, receiving random access channel information of a first cell reported by a terminal, where the random access channel information includes: a number of Listen Before Talk (LBT) failures when the terminal randomly accesses in the first cell;

it should be noted that the first cell refers to a cell to which the terminal is currently accessed, the first base station may send a random access channel Information Request message to the terminal, and after receiving the random access channel Information Request message, the terminal sends the random access channel Information recorded in the memory to the first base station, for example, the first base station sends a terminal Information Request (UE Information Request) message carrying a random access channel Information Request identifier to the terminal, and the terminal sends the random access channel Information to the first base station in a terminal Information Response (UE Information Response) message.

It should be further noted that the number of listening-before-speaking failures when the terminal randomly accesses the first cell is an average of the number of listening-before-speaking failures when the terminal randomly accesses the first cell for the last time or the number of listening-before-speaking failures when the terminal randomly accesses the first cell within a predetermined time each time; the frequency of listen before talk failure is the frequency of listen before talk failure of the random access preamble sent by the terminal when the first cell is randomly accessed and/or the frequency of listen before talk failure of the uplink data sent by the terminal.

Further, the RACH information in this embodiment may further include: the number of preambles sent by the terminal when the terminal randomly accesses the first cell and/or the indication information of whether contention resolution fails when the terminal randomly accesses the first cell.

Step 52, configuring the physical random access channel resource of the first cell according to the random access channel information.

It should be noted that, when the first base station receives the random access channel information of the first cell sent by the terminal, the physical random access channel resource of the first cell is optimized according to the random access channel information to reduce the number of LBT failures when the terminal randomly accesses. The specific implementation mode is as follows: when the number of LBT failures exceeds a first preset threshold when the terminal randomly accesses in the first cell, the number of the subframes occupied by the physical random access channel resources is increased and/or the backoff parameter value in the random access response sent to the terminal is increased.

That is, when the number of LBT failures exceeds a specified threshold when the terminal randomly accesses in the first cell, the time domain resource configuration of the physical random access channel resource is optimized, and the configuration of the MF-sperach time domain resource position is modified, so that the physical random access channel occupies more subframes in the time domain. For example, the MF-PRACH Configuration Index is changed from 2 to 6, the time domain resource of the physical random access channel is increased from the 7 th subframe of the original odd-numbered system frame to the 1 st subframe and the 6 th subframe of each system frame, and the specific setting conditions are shown in table 10:

TABLE 10 schematic diagram of subframe occupation by MF-sPRACH configuration index

Or the first base station may further increase a backoff (backoff) parameter value in the random access response, where the random access response is response information sent by the base station after receiving the preamble sent by the terminal, and the terminal obtains backoff time according to the backoff parameter in the latest random access response and sets the backoff time for sending the preamble, specifically, the terminal sets the backoff time of the preamble to random numbers generated by uniform distribution of time from 0 to backoff time, and table 11 shows a corresponding relationship between the backoff parameter in the random access response and the banoff time.

Table 11 table of correspondence between back-off parameter and back-off time

It should be further noted that, because there is no fixed uplink and downlink subframe configuration in the MF system, the downlink signal of the cell may cause LBT failure when the terminal performs uplink random access in the cell, and therefore the LBT failure when the terminal performs random access may be due to interference of the downlink signal of the cell or interference of other cells or terminals. The terminal may obtain the location of the Downlink subframe of the cell by receiving a Common Physical Downlink Control Channel (CPDCCH) of the accessed cell, so as to determine whether the subframe in which LBT fails during random access is the Downlink subframe. Optionally, the number of LBT failures may further include: the method for allocating resources in the embodiment of the present invention further includes, when the terminal randomly accesses the first cell, the number of times of LBT failure subframes is the number of downlink subframes of the first cell, and in this case, the method for allocating resources in the embodiment of the present invention further includes:

and when the number of times that the subframe which fails to listen before talk is a downlink subframe of the first cell when the terminal randomly accesses the first cell exceeds a second preset threshold value, adjusting and reducing the scheduling number of times of the first base station on the downlink subframe.

That is, if the information of the random access channel reported by the terminal further includes the number of times that a subframe in which LBT fails when the terminal randomly accesses in the first cell is a downlink subframe of the first cell, when the number of times of LBT failures exceeds a specified threshold, the first base station may further reduce the number of times of LBT failures when the terminal randomly accesses in the first cell by reducing scheduling of the downlink subframe.

It should be further noted that, when the RACH information includes the number of preambles transmitted when the terminal randomly accesses the first cell and/or the indication information of whether contention resolution fails when the terminal randomly accesses the first cell, the first base station may further adjust the random access related configuration according to the information.

Specifically, the first base station may adjust the uplink power control parameter of the MF-srrach according to the number of random access preambles sent by the terminal, where the uplink power control parameter includes an initial target received power of the preamble and a preamble power ramp step. Or, adjusting resource configuration, common and dedicated preamble configuration or backoff parameter values in random access response of the MF-sPRACH according to the indication information whether contention resolution fails or not sent by the terminal; for example, when the terminal indicates that contention resolution fails, the first base station may increase time domain, frequency domain, or code domain resources of the MF-sPRACH, or increase the number of common preambles, or increase a backoff parameter value in a random access response to reduce the probability of contention resolution failure occurring in random access.

According to the embodiment of the invention, the random access resource is optimized according to the random access information reported by the terminal, so that the success probability of the random access of the terminal in the cell is improved.

Fourth embodiment

As shown in fig. 6, a fourth embodiment of the present invention provides a first base station, including:

an obtaining module 61, configured to obtain configuration parameter information for optimally configuring physical random access channel resources of a first cell, where the configuration parameter information includes: resource configuration information of a MulteFire short physical random access channel (MF-sRACH) of a neighbor cell of a first cell and/or Random Access Channel (RACH) information of the first cell;

a configuring module 62, configured to configure the physical random access channel resource of the first cell according to the configuration parameter information.

Optionally, when the configuration parameter information includes resource configuration information of MF-sPRACH of a neighboring cell of the first cell, the obtaining module 61 includes:

the obtaining submodule is used for obtaining resource configuration information of MF-sPRACH of a neighbor cell of the first cell; wherein the resource configuration information includes: at least one of the MF-sPRACH frequency domain resource block position, the number of frequency domain resource blocks occupied by the MF-sPRACH and the Listen Before Talk (LBT) type of the MF-sPRACH; the LBT type of the MF-sPRACH is used for indicating whether the terminal carries out LBT on MF-sPRACH resources.

Further, the resource configuration information further includes: at least one of a zero correlation region configuration of the MF-sPRACH, a preamble root sequence of the MF-sPRACH, and a time domain resource location of the MF-sPRACH.

Optionally, the obtaining sub-module includes:

a first obtaining unit, configured to obtain a preset interface message sent by a second base station, and obtain resource configuration information of MF-srrach of a neighboring cell of a first cell from the preset interface message, where the preset interface message is an X2 interface message or an S1 interface message.

Optionally, the first obtaining unit includes:

the first obtaining subunit is configured to obtain a preset interface message sent by the second base station;

a second obtaining subunit, configured to obtain resource configuration information of the MF-srrach of the neighboring cell of the first cell from the physical random access channel configuration information of the serving cell of the second base station, where the physical random access channel configuration information is included in the preset interface message; and/or

A third obtaining subunit, configured to obtain resource configuration information of the MF-srrach of the neighboring cell of the first cell from the physical random access channel configuration information of the neighboring cell of the second base station serving cell of the preset interface message;

further, when the preset interface message is an X2 interface message, the X2 interface message includes an X2setup request message, an X2setup response message, an eNB configuration update message, or an eNB configuration update response message.

Specifically, the obtaining manner of the MF-sPRACH frequency domain resource block position in the resource configuration information of the MF-sPRACH of the neighboring cell of the first cell specifically is as follows:

according to the formula: k is PRACH-frequency offset mod 10, and the position of an MF-sPRACH frequency domain resource block is obtained; wherein,

k represents the position of an MF-sPRACH frequency domain resource block, PRACH-frequency offset is the frequency offset field value of a physical random access channel in the configuration information of the physical random access channel, and mod represents the remainder of dividing two numbers;

or,

and acquiring the position of the MF-sPRACH frequency domain resource block through a field indicating the position of the MF-sPRACH frequency domain resource block in the physical random access channel configuration information.

Specifically, the manner of acquiring the number of frequency domain resource blocks occupied by the MF-sPRACH in the resource configuration information of the MF-sPRACH of the neighboring cell of the first cell is specifically:

the physical random access channel configuration information comprises physical random access channel configuration information and physical random access channel configuration information, wherein PRACH-NumInterlaces represents the number of frequency domain resource blocks occupied by MF-sPRACH, floor () is a down-rounding function, PRACH-frequency offset is the value of a physical random access channel frequency offset field in the physical random access channel configuration information, and mod represents the remainder of dividing two numbers;

or,

and acquiring the number of the frequency domain resource blocks occupied by the MF-sPRACH through a field indicating the number of the frequency domain resource blocks occupied by the MF-sPRACH in the physical random access channel configuration information.

Specifically, the acquisition mode of the zero correlation region configuration of the MF-sPRACH, the preamble root sequence of the MF-sPRACH, and the time domain resource position of the MF-sPRACH in the resource configuration information of the MF-sPRACH of the neighboring cell of the first cell is as follows:

and respectively acquiring the zero correlation region configuration of the MF-sRACH, the leader root sequence of the MF-sRACH and the time domain resource position of the MF-sRACH through a zero correlation region configuration field, a root sequence index field and a time domain resource position field of the physical random access channel in the physical random access channel configuration information.

Optionally, the obtaining sub-module includes:

a first receiving unit, configured to acquire resource configuration information of MF-srrach of a neighboring cell of a first cell from a radio resource control RRC measurement report message of the neighboring cell of the first cell sent by a terminal; or

A second receiving unit, configured to acquire resource configuration information of the MF-srrach of the neighboring cell of the first cell from the received system broadcast message of the neighboring cell of the first cell.

Specifically, the configuration module 62 is configured to:

configuring the frequency domain resources occupied by the physical random access channel resources of the first cell to be different from the frequency domain resources occupied by the adjacent cells of the first cell according to at least one of the MF-sPRACH frequency domain resource block position and the MF-sPRACH frequency domain resource block number in the resource configuration information; and/or

Specifically, when the resource configuration information includes the MF-splach frequency domain resource block location, the number of frequency domain resource blocks occupied by the MF-splach, the zero correlation area configuration of the MF-splach, the preamble root sequence of the MF-splach, and the MF-splach time domain resource location, the configuration module 62 is configured to:

Specifically, when the resource configuration information includes an MF-splach time domain resource location, an MF-splach frequency domain resource block location, the number of frequency domain resource blocks occupied by the MF-splach, a zero correlation region configuration of the MF-splach, and a preamble root sequence of the MF-splach, the configuration module 62 is configured to:

Optionally, when the configuration parameter information includes RACH information of a first cell, the acquiring module 61 includes:

a receiving submodule, configured to receive, when the first cell is a Multefire cell, RACH information of the first cell reported by a terminal, where the RACH information includes: the terminal listens before talks for the number of LBT failures when randomly accessing in the first cell.

Specifically, the number of LBT failures when the terminal randomly accesses the first cell is an average of the number of listening-before-speaking failures when the terminal last randomly accesses the first cell or the number of listening-before-speaking failures when the terminal randomly accesses the first cell in a predetermined time;

the frequency of listen before talk failure is the frequency of listen before talk failure of the random access preamble sent by the terminal when the first cell is randomly accessed and/or the frequency of listen before talk failure of the uplink data sent by the terminal.

Specifically, the configuration module 62 is configured to:

when the number of LBT failures exceeds a first preset threshold when the terminal randomly accesses in the first cell, the number of the subframes occupied by the physical random access channel resources is increased and/or the backoff parameter value in the random access response sent to the terminal is increased.

Optionally, the number of LBT failures when the terminal randomly accesses in the first cell further includes: when the terminal randomly accesses the first cell, the number of times that the subframe which fails to listen before talk is a downlink subframe of the first cell is set;

the first base station further comprises:

and the adjusting module is used for adjusting and reducing the scheduling times of the first base station on the downlink subframes when the times of the subframes with LBT failure as the downlink subframes of the first cell when the terminal randomly accesses the first cell exceed a second preset threshold value.

Optionally, the RACH information further includes: the number of preambles sent by the terminal when the terminal randomly accesses the first cell and/or the indication information of whether contention resolution fails when the terminal randomly accesses the first cell.

It should be noted that the first base station embodiment of the present invention is a first base station corresponding to the above-mentioned embodiment of the resource allocation method, and all implementation means in the above-mentioned embodiment of the resource allocation method are applicable to the first base station embodiment, and the same technical effects can be achieved.

Fifth embodiment

As shown in fig. 7, a fifth embodiment of the present invention provides a first base station, including:

a receiver 71, configured to obtain configuration parameter information for optimally configuring physical random access channel resources of a first cell, where the configuration parameter information includes: resource configuration information of a MulteFire short physical random access channel (MF-sRACH) of a neighbor cell of a first cell and/or Random Access Channel (RACH) information of the first cell;

a processor 72 connected to the receiver 71 for implementing the following functions:

The processor 72 may also be configured to implement the functions implemented by all the modules in the first base station embodiment, and achieve the same technical effects as those achieved by the first base station embodiment.

Sixth embodiment

A sixth embodiment of the present invention provides an information sending method applied to a second base station, including:

In the second embodiment, all descriptions about the second base station are applied to the embodiment of the second base station to which the information transmission method is applied, and the same technical effects as those of the second base station can be achieved.

Seventh embodiment

A seventh embodiment of the present invention provides a second base station, including:

The second base station embodiment of the present invention is a second base station corresponding to the above-mentioned embodiment of the information transmission method, and all implementation means in the above-mentioned embodiment of the information transmission method are applied to the second base station embodiment, and the same technical effects can be achieved.

Eighth embodiment

An eighth embodiment of the present invention provides a second base station, including:

The transmitter may also be configured to implement the functions implemented by all the modules in the second base station embodiment, and may also achieve the same technical effects as those achieved by the second base station embodiment.

Ninth embodiment

A ninth embodiment of the present invention provides an information sending method, applied to a terminal, including:

wherein the first cell is an MF cell, and the RACH information includes: the terminal listens to and then speaks the number of LBT failures when randomly accessing in the first cell;

the first cell is a cell served by the first base station.

In the third embodiment, all descriptions about the terminal are applied to the embodiment of the terminal to which the information transmission method is applied, and the same technical effects as those of the embodiment can be achieved.

Tenth embodiment

A tenth embodiment of the present invention provides a terminal including:

the first cell is a cell served by the first base station.

The terminal embodiment of the present invention is a terminal corresponding to the above-mentioned information transmission method embodiment, and all implementation means in the above-mentioned information transmission method embodiment are applied to the terminal embodiment, and the same technical effects can be achieved.

Eleventh embodiment

An eleventh embodiment of the present invention provides a terminal including:

the first cell is a cell served by the first base station.

The transmitter may also be configured to implement the functions implemented by all the modules in the terminal embodiment, and may also achieve the same technical effects as those achieved by the terminal embodiment.

It should be noted that the terminal described in the embodiments of the present invention may be a mobile phone (or a mobile phone), or other devices capable of sending or receiving wireless signals, including user equipment (terminal), a Personal Digital Assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) station, a CPE or Mifi capable of converting a mobile signal into a wifi signal, an intelligent appliance, or other devices capable of autonomously communicating with a mobile communication network without human operation.

While the principles of the invention have been described in connection with specific embodiments thereof, it should be noted that it will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which will be within the skill of those in the art after reading the description of the invention and applying their basic programming skills.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

A1. A resource allocation method is applied to a first base station to which a first cell belongs, and is characterized by comprising the following steps:

A2. The resource allocation method according to a1, wherein, when the configuration parameter information includes resource allocation information of MF-srrach of a neighboring cell of the first cell, the step of obtaining the configuration parameter information for optimally configuring the physical random access channel resource of the first cell includes:

acquiring resource configuration information of MF-sPRACH of a neighbor cell of a first cell; wherein the resource configuration information includes: at least one of the MF-sPRACH frequency domain resource block position, the number of frequency domain resource blocks occupied by the MF-sPRACH and the Listen Before Talk (LBT) type of the MF-sPRACH; the LBT type of the MF-sPRACH is used for indicating whether the terminal carries out LBT on MF-sPRACH resources.

A3. The resource allocation method according to a2, wherein the resource allocation information further includes: at least one of a zero correlation region configuration of the MF-sPRACH, a preamble root sequence of the MF-sPRACH, and a time domain resource location of the MF-sPRACH.

A4. The resource configuration method according to a2 or A3, wherein the step of acquiring the resource configuration information of the MF-srrach of the neighboring cell of the first cell comprises:

acquiring a preset interface message sent by a second base station, and acquiring resource configuration information of MF-sPRACH of a neighboring cell of a first cell from the preset interface message, wherein the preset interface message is an X2 interface message or an S1 interface message.

A5. The method for resource allocation according to a4, wherein the step of acquiring the preset interface message sent by the second base station and acquiring the resource allocation information of the MF-srrach of the neighboring cell of the first cell from the preset interface message includes:

acquiring a preset interface message sent by the second base station;

acquiring resource configuration information of MF-sPRACH of a neighboring cell of the first cell from the physical random access channel configuration information of the second base station serving cell included in the preset interface message; and/or

And acquiring the resource configuration information of the MF-sPRACH of the neighbor cell of the first cell from the physical random access channel configuration information of the neighbor cell of the serving cell of the second base station of the preset interface message.

A6. The method of A5, wherein when the preset interface message is an X2 interface message, the X2 interface message includes an X2setup request message, an X2setup response message, an eNB configuration update message, or an eNB configuration update response message.

A7. The resource configuration method according to a5, wherein the obtaining manner of the MF-sPRACH frequency domain resource block position in the MF-sPRACH resource configuration information of the neighboring cell of the first cell is specifically:

k represents the position of an MF-sPRACH frequency domain resource block, PRACH-frequency offset is the value of the frequency offset field of the physical random access channel in the configuration information of the physical random access channel, and mod represents the remainder of dividing two numbers.

A8. The resource configuration method according to a5, wherein the obtaining manner of the MF-sPRACH frequency domain resource block position in the MF-sPRACH resource configuration information of the neighboring cell of the first cell is specifically:

A9. The resource configuration method according to a5, wherein the manner of obtaining the number of frequency domain resource blocks occupied by the MF-sPRACH in the resource configuration information of the MF-sPRACH of the neighboring cell of the first cell specifically is:

the PRACH-NumInterlaces is the number of frequency domain resource blocks occupied by the MF-sPRACH, floor (×) is a down-rounding function, the PRACH-frequency offset is the frequency offset field value of the physical random access channel in the configuration information of the physical random access channel, and mod represents the remainder of dividing two numbers.

A10. The resource configuration method according to a5, wherein the manner of obtaining the number of frequency domain resource blocks occupied by the MF-sPRACH in the resource configuration information of the MF-sPRACH of the neighboring cell of the first cell specifically is:

A11. The resource allocation method according to a5, wherein the acquisition mode of the zero correlation region configuration of the MF-sPRACH, the preamble root sequence of the MF-sPRACH, and the time domain resource position of the MF-sPRACH in the resource allocation information of the MF-sPRACH of the neighboring cell of the first cell is as follows:

A12. The resource configuration method according to a2 or A3, wherein the step of acquiring the resource configuration information of the MF-srrach of the neighboring cell of the first cell comprises:

A13. The resource configuration method according to a2 or A3, wherein the step of acquiring the resource configuration information of the MF-srrach of the neighboring cell of the first cell comprises:

A14. The resource allocation method according to a2, wherein the step of allocating the physical random access channel resource of the first cell according to the configuration parameter information comprises:

A15. The method for configuring resources according to a3, wherein when the resource configuration information includes a frequency domain resource block location of MF-splach, a number of frequency domain resource blocks occupied by MF-splach, a zero correlation region configuration of MF-splach, a preamble root sequence of MF-splach, and a time domain resource location of MF-splach, the step of configuring the physical random access channel resource of the first cell according to the configuration parameter information includes:

A16. The method for configuring resources according to a3, wherein, when the resource configuration information includes an MF-splach time domain resource location, an MF-splach frequency domain resource block location, a number of frequency domain resource blocks occupied by the MF-splach, a zero correlation region configuration of the MF-splach, and a preamble root sequence of the MF-splach, the step of configuring the physical random access channel resources of the first cell according to the configuration parameter information includes:

A17. The resource allocation method according to a1, wherein, when the configuration parameter information includes RACH information of the first cell, the step of acquiring configuration parameter information for optimally configuring physical random access channel resources of the first cell includes:

when the first cell is a Multefire cell, receiving RACH information of the first cell reported by a terminal, where the RACH information includes: the terminal listens before talks for the number of LBT failures when randomly accessing in the first cell.

A18. The resource allocation method according to a14, wherein the number of LBT failures when the terminal randomly accesses the first cell is an average of the number of failures after listening and speaking when the terminal last randomly accesses the first cell or the number of failures before listening and speaking when the terminal randomly accesses the first cell each time within a predetermined time;

A19. The resource allocation method according to a14, wherein the step of allocating the physical random access channel resource of the first cell according to the configuration parameter information comprises:

A20. The resource allocation method according to a14, wherein the number of LBT failures when the terminal randomly accesses in the first cell further includes: when the terminal randomly accesses the first cell, the number of times that the subframe which fails to listen before talk is a downlink subframe of the first cell is set;

the resource configuration method further comprises the following steps:

and when the number of times that the subframe with LBT failure is a downlink subframe of the first cell when the terminal randomly accesses the first cell exceeds a second preset threshold value, adjusting and reducing the scheduling number of times of the first base station for the downlink subframe.

A21. The resource configuration method according to a14, wherein the RACH information further includes: the number of preambles sent by the terminal when the terminal randomly accesses the first cell and/or the indication information of whether contention resolution fails when the terminal randomly accesses the first cell.

B22. A first base station, comprising:

C23. A first base station, comprising:

D24. An information sending method applied to a second base station, comprising:

E25. A second base station, comprising:

F26. A second base station, comprising:

G27. An information sending method is applied to a terminal, and is characterized by comprising the following steps:

the first cell is a cell served by the first base station.

H28. A terminal, comprising:

the first cell is a cell served by the first base station.

I29. A terminal, comprising:

the first cell is a cell served by the first base station.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. A resource allocation method is applied to a first base station to which a first cell belongs, and is characterized by comprising the following steps:

2. The resource allocation method according to claim 1, wherein when the configuration parameter information includes resource allocation information of MF-sPRACH of a neighboring cell of the first cell, the step of obtaining the configuration parameter information for optimally allocating physical random access channel resources of the first cell comprises:

3. A first base station, comprising:

4. A first base station, comprising:

5. An information sending method applied to a second base station, comprising:

6. A second base station, comprising:

7. A second base station, comprising:

8. An information sending method is applied to a terminal, and is characterized by comprising the following steps:

the first cell is a cell served by the first base station.

9. A terminal, comprising:

the first cell is a cell served by the first base station.

10. A terminal, comprising:

the first cell is a cell served by the first base station.