CN110677916A - A configuration, transmission and detection method of random access information, terminal and base station - Google Patents

Abstract

The invention provides a method for configuring, transmitting and detecting random access information, a terminal and a base station, wherein the configuration method comprises the following steps: sending configuration information of a random access sequence to a terminal, wherein the configuration information comprises: and the corresponding relation between the random access sequence and the sending times. By the mode, the uplink and downlink ratio is less limited while the uplink access coverage is ensured, the user time delay is reduced, and the user experience is improved.

Description

A configuration, transmission and detection method of random access information, terminal and base station

technical field

The present invention relates to the technical field of wireless communication, and in particular, to a configuration, transmission and detection method, terminal and base station of random access information.

Background technique

In the current standardization process of New Radio (NR) of the fifth generation mobile communication technology (Fifth-generation, 5G), in the sequence transmitted in the Physical Random Access Channel (PRACH) The long sequence format with 4 repetitions is introduced, please refer to Figure 1, that is to say, by uploading the sequence in the Format 2 format in Figure 1, to combat the link loss caused by the increase of the frequency band, so as to ensure the coverage of uplink access .

However, according to the existing standardization conclusions, uploading a sequence in Format 2 requires a transmission time of 3.5ms. Therefore, the base station needs to configure an uplink transmission time of at least 3.5ms. If the base station configures an uplink and downlink period of 5ms, the proportion of uplink transmission is too large. If the base station is configured with a period of 10ms, it can only support an uplink and downlink ratio of about 4:6. If the base station configures a longer period, the terminal access delay will be too long. In addition, in order to configure the transmission of this sequence, the uplink transmission time accounts for too much, which will also affect the downlink transmission of other users, resulting in excessive delay of these users and affecting the user experience of these users.

Therefore, how to reduce the restriction on the uplink and downlink allocation ratio and reduce the user delay while ensuring the coverage of the uplink access is a technical problem that needs to be solved urgently at present.

SUMMARY OF THE INVENTION

In view of this, the present invention provides a method for configuring, transmitting and detecting random access information, a terminal and a base station, which are used to reduce the restrictions on the uplink and downlink ratios while ensuring the coverage of uplink access, and reduce user time. delayed technical issues.

In order to solve the above technical problems, in a first aspect, an embodiment of the present invention provides a method for configuring random access information, which is applied to a base station, including:

The configuration information of the random access sequence is sent, where the configuration information includes: the correspondence between the random access sequence and the number of times of sending.

Wherein, the corresponding relationship between the random access sequence and the number of times of transmission includes:

At least two random access sequence groups and the number of times of sending random access sequences in each random access sequence group, wherein each random access sequence group includes at least one random access sequence, and each random access sequence group includes at least one random access sequence. The random access sequences in the random access sequence group are different; or

The number of random access sequence groups, the number of random access sequences in each random access sequence group, and the number of times the random access sequence in each random access sequence group is sent.

In a second aspect, an embodiment of the present invention provides a method for transmitting random access information, which is applied to a terminal, and the transmission method includes:

Determine the number of times N of sending the random access sequence that needs to be sent, where N is a positive integer greater than or equal to 1;

selecting a random access sequence in the random access sequence group corresponding to the N according to the correspondence between the random access sequence and the number of times of transmission;

The selected random access sequence is sent on N RACH transmission opportunities respectively.

Wherein, the corresponding relationship between the random access sequence and the number of times of transmission includes:

At least two random access sequence groups and the number of times of sending random access sequences in each random access sequence group, wherein each random access sequence group includes at least one random access sequence, and each random access sequence group includes at least one random access sequence. The random access sequences in the random access sequence group are different; or

The number of random access sequence groups, the number of random access sequences in each random access sequence group, and the number of times the random access sequence in each random access sequence group is sent.

Wherein, before the step of selecting a random access sequence in the random access sequence group corresponding to N according to the corresponding relationship between the random access sequence and the number of times of transmission, the method further includes:

The configuration information of the random access sequence sent by the base station is received, where the configuration information includes: the correspondence between the random access sequence and the number of times of transmission.

Wherein, the step of determining the number of times N of sending the random access sequence needs to be sent includes:

Obtain the path loss between the terminal and the base station;

According to the path loss, the number of times N of sending the random access sequence is determined.

The transmission symbols occupied by the N RACH transmission opportunities do not overlap.

Wherein, before the step of respectively sending the selected random access sequence on the N RACH transmission opportunities, it further includes:

receiving a synchronization signal block sent by a base station, and a mapping relationship between each of the synchronization signal blocks and multiple RACH transmission opportunities;

The step of sending the selected random access sequence on the N RACH transmission opportunities respectively includes:

According to the mapping relationship, the selected random access sequence is respectively sent on N RACH transmission opportunities corresponding to the same synchronization signal block.

In a third aspect, an embodiment of the present invention further provides a method for detecting random access information, which is applied to a base station, and the detection method includes:

Detecting the random access sequence sent by the terminal according to the correspondence between the random access sequence and the number of times of sending;

For the random access sequence corresponding to the number of transmissions N is 1, the random access sequence is detected separately on each RACH transmission opportunity; for the random access sequence corresponding to the number of transmissions N greater than 1, the random access sequence is combined on N RACH transmission opportunities Detect random access sequences.

Wherein, before the step of determining, according to the corresponding relationship between the random access sequence and the number of times of transmission, the number N of times of transmission of the random access sequence sent by the terminal, the method further includes:

The synchronization signal block and the mapping relationship between each synchronization signal block and multiple RACH transmission opportunities are sent to the terminal.

In a fourth aspect, an embodiment of the present invention further provides a base station, including:

A transceiver, configured to send configuration information of a random access sequence, where the configuration information includes: a correspondence between the random access sequence and the number of times of sending.

Wherein, the corresponding relationship between the random access sequence and the number of times of transmission includes:

At least two random access sequence groups and the number of times of sending random access sequences in each random access sequence group, wherein each random access sequence group includes at least one random access sequence, and each random access sequence group includes at least one random access sequence. The random access sequences in the random access sequence group are different; or

The number of random access sequence groups, the number of random access sequences in each random access sequence group, and the number of times the random access sequence in each random access sequence group is sent.

In a fifth aspect, an embodiment of the present invention further provides a terminal, including:

a processor, configured to determine the number of times N of sending the random access sequence, where the N is a positive integer greater than or equal to 1; according to the correspondence between the random access sequence and the number of times of sending, select the number of times corresponding to the N a random access sequence in the random access sequence group;

The transceiver is configured to send the selected random access sequence on the N RACH transmission opportunities respectively.

Wherein, the corresponding relationship between the random access sequence and the number of times of transmission includes:

At least two random access sequence groups and the number of times of sending random access sequences in each random access sequence group, wherein each random access sequence group includes at least one random access sequence, and each random access sequence group includes at least one random access sequence. The random access sequences in the random access sequence group are different; or

The number of random access sequence groups, the number of random access sequences in each random access sequence group, and the number of times the random access sequence in each random access sequence group is sent.

The transceiver is configured to receive configuration information of the random access sequence sent by the base station, where the configuration information includes: the correspondence between the random access sequence and the number of times of transmission.

Wherein, the processor is configured to acquire the path loss between the terminal and the base station; according to the path loss, determine the number of times N of sending the random access sequence that needs to be sent.

The transmission symbols occupied by the N RACH transmission opportunities do not overlap.

Wherein, the transceiver is used to receive the synchronization signal block sent by the base station, and the mapping relationship between each synchronization signal block and multiple RACH transmission opportunities; according to the mapping relationship, the selected random access sequence They are respectively sent on N RACH transmission opportunities corresponding to the same synchronization signal block.

In a sixth aspect, an embodiment of the present invention further provides a base station, including:

The processor is configured to detect the random access sequence sent by the terminal according to the corresponding relationship between the random access sequence and the number of transmissions; for the random access sequence corresponding to the number of transmissions N is 1, the random access sequence is independently detected on each RACH transmission opportunity Access sequence; for the random access sequence corresponding to the number of transmissions N greater than 1, the random access sequence is combined and detected on N RACH transmission opportunities.

Wherein, the base station further includes:

The transceiver is configured to send the synchronization signal block to the terminal, and the mapping relationship between each synchronization signal block and multiple RACH transmission opportunities.

In a seventh aspect, an embodiment of the present invention further provides a base station, including a memory, a processor, and a computer program stored on the memory and running on the processor; the processor implements the above when executing the program configuration method.

In an eighth aspect, an embodiment of the present invention further provides a terminal, including a memory, a processor, and a computer program stored in the memory and running on the processor; the processor implements the above when executing the program transfer method.

In a ninth aspect, an embodiment of the present invention further provides a base station, including a memory, a processor, and a computer program stored on the memory and running on the processor; the processor implements the above when executing the program Detection method.

In a tenth aspect, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps in the above configuration method are implemented, or when the program is executed by the processor The steps in the above-mentioned transmission method are implemented, or, when the program is executed by the processor, the steps in the above-mentioned detection method are implemented.

The beneficial effects of the above technical solutions of the present invention are as follows: different from the situation in the prior art, the present invention can ensure the coverage of the uplink access, while less restrictions on the uplink and downlink ratios, reduce user delay, and improve user experience .

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the drawings that are used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. , for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

1 is a schematic diagram of random access sequences in three formats in the prior art;

2 is a schematic flowchart of a method for configuring random access information according to Embodiment 1 of the present invention;

3 is a schematic flowchart of a method for transmitting random access information according to Embodiment 2 of the present invention;

4 is a schematic flowchart of a method for transmitting random access information according to Embodiment 3 of the present invention;

5 is a schematic diagram of transmission symbols occupied by N RACH transmission opportunities in some preferred embodiments of the present invention;

6 is a schematic flowchart of a method for detecting random access information according to Embodiment 4 of the present invention;

FIG. 7 is a schematic structural diagram of a base station according to Embodiment 5 of the present invention;

FIG. 8 is a schematic structural diagram of a terminal according to Embodiment 6 of the present invention;

FIG. 9 is a schematic structural diagram of a base station according to Embodiment 7 of the present invention.

FIG. 10 is a schematic structural diagram of a base station according to some preferred embodiments of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.

Referring to FIG. 2, FIG. 2 is a schematic flowchart of a method for transmitting random access information according to Embodiment 1 of the present invention. The method is applied to a base station and includes:

Step S21: Send configuration information of the random access sequence, where the configuration information includes: the correspondence between the random access sequence and the number of times of sending.

With the above method, the base station sends the configuration information of the random access sequence, the configuration information is used to instruct the terminal to send the random access sequence according to the configuration information, so that the terminal can determine the number of times of sending the random access sequence according to the quality of the channel, It can not only ensure the coverage of uplink access, but also does not limit the proportion of uplink and downlink too much, which ensures the flexibility of system configuration.

In some embodiments of the present invention, the correspondence between the random access sequence and the number of times of sending includes: at least two random access sequence groups and the number of times of sending the random access sequence in each random access sequence group, wherein , each of the random access sequence groups includes at least one random access sequence, and the random access sequences in each of the random access sequence groups are different.

For example, the correspondence between the random access sequence and the number of times of transmission includes: random access sequence group 1, group 2, ..., group M (M is a positive integer greater than or equal to 2), and each random access sequence The number of times the random access sequence corresponding to the group is sent. The random access sequence group n indicates that the random access sequence needs to be sent m times, that is, the sending times of any random access sequence in the random access sequence group n is m, and m is a positive integer less than or equal to M.

For another example, the correspondence between the random access sequence and the number of times of sending includes: random access sequence group 1 and group 2, and the number of times of sending the random access sequence corresponding to the two random access sequence groups. The random access sequence group 1 indicates that one random access sequence needs to be sent on one random access channel (Random Access Channel, RACH for short) transmission opportunity; the random access sequence group 2 indicates that it needs to be sent on N2 RACH transmission opportunities Send the random access sequence N2 times, where N2 is a positive integer greater than or equal to 2.

In some other embodiments of the present invention, the correspondence between the random access sequence and the number of times of transmission includes: the number of random access sequence groups, the number of random access sequences in each random access sequence group and the number of times the random access sequence is sent in each of the random access sequence groups.

For example, the correspondence between the random access sequence and the number of times of transmission includes: 3 random access sequence groups, and the numbers of random access sequences in random access sequence groups 1, 2, and 3 are 10, 30, and 24, respectively. , the transmission times of random access sequences in random access sequence groups 1, 2, and 3 are 1, 2, and 3, respectively. Then the random access sequences in random access sequence group 1 are the 1st to 10th random access sequences, and the number of transmissions is 1; the random access sequences in random access sequence group 2 are the 11th to 10th random access sequences. Forty random access sequences, the number of times of sending is 2; the random access sequences in random access sequence group 3 are the 41st to 64th random access sequences, and the number of times of sending is 3.

The numerical values in the above embodiments are merely illustrative, and the numerical values can be flexibly adjusted according to actual needs, which are not limited in the present invention.

In the above embodiment, the configuration information sent to the terminal can be adjusted in combination with various factors such as channel quality, so that the terminal can access the network more efficiently.

Referring to FIG. 3, FIG. 3 is a schematic flowchart of a method for transmitting random access information according to Embodiment 2 of the present invention. The method includes:

Step S31: Determine the number of times N of sending the random access sequence that needs to be sent, where N is a positive integer greater than or equal to 1.

Step S32: Select a random access sequence in the random access sequence group corresponding to the N according to the corresponding relationship between the random access sequence and the number of times of transmission.

Step S33: Send the selected random access sequence on the N RACH transmission opportunities respectively.

Using the above method, the number of times N of sending the random access sequence can be determined as needed. For example, when the channel quality is good, the number of times N of sending the random access sequence can be small, for example, 1, that is, only one RACH transmission is performed. The random access sequence is sent once at the opportunity, and the short sequence format can be sent. For example, the sequence in the Format 0 format in Figure 1 is only sent once. The short sequence format has a shorter uplink transmission time, thereby reducing the uplink and downlink ratios; when the channel quality is poor , the determined number of times N of sending the random access sequence can be larger, for example, 4, that is, the random access sequence is sent 4 times on 4 RACH transmission opportunities. 4-time short sequence format, for example, a sequence in Format 0 format is sent on 4 time-division transmission opportunities, thereby reducing the uplink-downlink ratio.

Therefore, the present invention can ensure the coverage of uplink access, and at the same time, has less restrictions on the ratio of uplink and downlink, reduces user delay, and improves user experience.

In the above embodiment, the correspondence between the random access sequence and the number of times of sending includes: at least two random access sequence groups and the number of times of sending the random access sequence in each random access sequence group, wherein each The random access sequence group includes at least one random access sequence, and the random access sequence in each random access sequence group is different; or the number of random access sequence groups, each random access sequence The number of random access sequences in the group and the number of times of sending the random access sequences in each random access sequence group.

Preferably, before step S32, it also includes:

The configuration information of the random access sequence sent by the base station is received, where the configuration information includes: the correspondence between the random access sequence and the number of times of transmission.

Referring to FIG. 4, FIG. 4 is a schematic flowchart of a method for transmitting random access information according to Embodiment 3 of the present invention. The method is applied to a terminal, including:

Step S41: Obtain the path loss between the terminal and the base station.

Obtain the path loss of the information transmitted from the base station to the terminal by estimating. Generally speaking, the path loss is related to the signal strength. For example, when the terminal is located at the edge of the cell and the signal is weak, the path loss for the base station to transmit information to the terminal is high; when the terminal is located in the center of the cell, the signal is strong, and the base station transmits information to the terminal. The path loss for transmitting information is low.

Step S42: According to the path loss, determine the number of times N of sending the random access sequence that needs to be sent.

According to the estimated path loss, it is determined how many time-division RACH transmission opportunities Msg1 needs to be sent before the random access response window (Random Access Response window, RAR window for short) starts, which is denoted as N.

If the path loss between the terminal and the base station is high, the random access sequence needs to be sent more times; if the path loss between the terminal and the base station is low, the random access sequence needs to be sent less frequently.

Step S43: Select a random access sequence in the random access sequence group corresponding to the N according to the corresponding relationship between the random access sequence and the number of times of transmission.

For example, the number of times N of sending random access sequences is determined to be 4, and according to the corresponding relationship between the random access sequences and the number of times of transmissions, a random access sequence group with four times of transmission times is determined, and a random access sequence is selected from among them.

Step S44: Send the selected random access sequence on the N RACH transmission opportunities respectively.

In this step, the selected random access sequence may be respectively sent on N RACH transmission opportunities in one RACH cycle, or the selected random access sequence may be sent on N RACH transmission opportunities in different RACH cycles.

In some preferred embodiments of the present invention, the transmission symbols occupied by the N RACH transmission opportunities do not overlap. Referring to FIG. 5, the random access sequence is sent on three RACH transmission opportunities respectively, and the transmission symbol occupied by the first RACH transmission opportunity is the first symbol that occupies only one subframe (one symbol is only used for example, also Other values may be possible); the transmission symbol occupied by the second RACH transmission opportunity is the second symbol occupying a subframe; the transmission symbol occupied by the third RACH transmission opportunity is the third symbol occupying a subframe.

The numerical values in the above embodiments are merely illustrative, and the numerical values can be flexibly adjusted according to actual needs, which are not limited in the present invention.

In some preferred embodiments of the present invention, before the step of sending the selected random access sequence on the N RACH transmission opportunities, the step further includes: receiving a synchronization signal block sent by the base station, and each synchronization signal block is associated with a plurality of The mapping relationship between RACH transmission opportunities. The step of sending the selected random access sequence on the N RACH transmission opportunities respectively includes: according to the mapping relationship, respectively sending the selected random access sequence on the N RACH transmission opportunities corresponding to the same synchronization signal block send.

Specifically, the terminal receives the synchronization signal block sent by the base station, uses the synchronization signal block to complete synchronization, and saves the mapping relationship between each synchronization signal block and multiple time-division RACH transmission opportunities.

The mapping relationship between a synchronization signal block and multiple time-division RACH transmission opportunities may be the corresponding relationship between the synchronization signal block and which time-division RACH transmission opportunities.

For example, the base station is configured with 6 time-division RACH transmission opportunities, and the synchronization signal block SSblock1 sent by the base station to the terminal corresponds to the RACH transmission opportunities of the 1st, 3rd, 5th, and 6th time-division in a RACH cycle, then The corresponding relationship is the mapping relationship. When it is determined that the number of times N of random access sequences to be sent is 2, 2 are randomly selected from the RACH transmission opportunities in the 1st, 3rd, 5th, and 6th time divisions of the RACH cycle, and in the selected 2 time divisions The selected random access sequence is uploaded on the RACH transmission opportunity.

Optionally, the mapping relationship between a synchronization signal block and multiple time-division RACH transmission opportunities may be the mapping relationship between a synchronization signal block and multiple time-division RACH transmission opportunities in one RACH cycle, or the mapping relationship between RACH transmission opportunities in different RACH cycles. The mapping relationship between the multiple time-division RACH transmission opportunities is not limited in the present invention.

For example, there are 16 time-division RACH transmission opportunities in one RACH cycle, one synchronization signal block corresponds to 5 RACH transmission opportunities respectively, and the first synchronization signal block sent by the base station received by the terminal corresponds to the first to the first in the RACH cycle 5 transmission opportunities; the second synchronization signal block corresponds to the 6th to 10th transmission opportunities in this RACH cycle; the third synchronization signal block corresponds to the 11th to 15th transmission opportunities in this RACH cycle; the fourth The synchronization signal block corresponds to the 16th transmission opportunity in this RACH cycle and the 1st to 4th transmission opportunities in the next RACH cycle.

In some preferred embodiments of the present invention, the RACH transmission opportunity frequency division multiplexing associated with multiple synchronization signal blocks is supported, so that the system configuration is more flexible, the user delay is further reduced, and the user experience is improved.

Referring to FIG. 6, FIG. 6 is a schematic flowchart of a method for detecting random access information according to Embodiment 4 of the present invention. The method is applied to a base station and includes:

Step S61: Detect the random access sequence sent by the terminal according to the correspondence between the random access sequence and the number of times of sending.

Step S62: For the random access sequence corresponding to the number of transmissions N is 1, the random access sequence is independently detected on each RACH transmission opportunity; Opportunistically combined detection of random access sequences.

By adopting the above method, the present invention can ensure the coverage of uplink access, and at the same time, has less restrictions on the ratio of uplink and downlink, reduces user delay, and improves user experience.

Preferably, the correspondence between the random access sequence and the number of times of sending includes: at least two random access sequence groups and the number of times of sending the random access sequence in each random access sequence group, wherein each random access sequence The access sequence group includes at least one random access sequence, and the random access sequence in each random access sequence group is different; or the number of random access sequence groups, the number of random access sequence groups in each random access sequence group and the number of random access sequences sent in each random access sequence group.

For example, in an application scenario, the base station compares the random access sequence sent by the terminal with the 64 random access sequence codes known by the base station according to the corresponding relationship between the random access sequence and the number of transmissions. Sequence correlation detection is performed to obtain the random access sequence with the largest correlation value among the 64 random access sequences, and then determine which random access sequence in which random access sequence group the random access sequence sent by the terminal is. and the number of times N of sending the random access sequence.

The random access sequence sent by the terminal is uploaded to the base station by the terminal on a time-division RACH transmission opportunity, and the base station detects the random access sequence independently on each transmission opportunity.

The random access sequence sent by the terminal is uploaded to the base station by the terminal on multiple time-division RACH transmission opportunities, and the random access sequence is combined and detected on the multiple RACH transmission opportunities. For example, there is a mapping relationship between the synchronization signal block SSblock2 sent by the base station to the terminal and the three time-division RACH transmission opportunities in one RACH cycle (respectively recorded as the first, second, and third time-division RACH transmission opportunities) . According to the corresponding relationship between the random access sequence and the number of transmissions, assuming that the number of times the random access sequence is sent by the terminal is 2, then the first and second, the second and the third, the first and the third The random access sequence is combined and detected on three transmission opportunities. According to this operation, the detection of all 64 random access sequences is completed, and the random access sequence with the largest correlation value obtained is the random access sequence sent by the terminal.

In some preferred embodiments of the present invention, before the step of determining, according to the corresponding relationship between the random access sequence and the number of times of transmission, the number of times N of transmissions of the random access sequence sent by the terminal, the method further includes: sending a synchronization signal block to the terminal, and a mapping relationship between each of the synchronization signal blocks and multiple RACH transmission opportunities. Therefore, the terminal can complete the synchronization with the base station in real time according to the synchronization signal block, and send the random access sequence on the random access channel according to the mapping relationship.

Referring to FIG. 7 , FIG. 7 is a schematic structural diagram of a base station according to Embodiment 5 of the present invention. The base station 700 includes:

The transceiver 701 is configured to send configuration information of a random access sequence, where the configuration information includes: a correspondence between the random access sequence and the number of times of sending.

Further, the corresponding relationship between the random access sequence and the number of times of transmission includes:

At least two random access sequence groups and the number of times of sending random access sequences in each random access sequence group, wherein each random access sequence group includes at least one random access sequence, and each random access sequence group includes at least one random access sequence. The random access sequences in the random access sequence group are different; or

The number of random access sequence groups, the number of random access sequences in each random access sequence group, and the number of times the random access sequence in each random access sequence group is sent.

It should be noted that the transceiver 701 of the base station 700 in this embodiment can respectively execute the corresponding steps in the above-mentioned embodiments of the random access information configuration method, so it is not repeated here, please refer to the above description of the corresponding configuration method steps for details. .

Referring to FIG. 8, FIG. 8 is a schematic structural diagram of a terminal according to Embodiment 6 of the present invention. The terminal 800 includes:

The processor 801 is configured to determine the number of times N of transmissions that needs to be sent to the random access sequence, where N is a positive integer greater than or equal to 1; according to the correspondence between the random access sequence and the number of times of transmission, select the number corresponding to the N a random access sequence in the random access sequence group of ;

The transceiver 802 is configured to send the selected random access sequence on the N RACH transmission opportunities respectively.

Further, the corresponding relationship between the random access sequence and the number of times of transmission includes:

At least two random access sequence groups and the number of times of sending random access sequences in each random access sequence group, wherein each random access sequence group includes at least one random access sequence, and each random access sequence group includes at least one random access sequence. The random access sequences in the random access sequence group are different; or

The number of random access sequence groups, the number of random access sequences in each random access sequence group, and the number of times the random access sequence in each random access sequence group is sent.

Further, the transceiver 802 is configured to receive configuration information of the random access sequence sent by the base station, where the configuration information includes: a correspondence between the random access sequence and the number of times of sending.

Further, the processor 801 is configured to obtain the path loss between the terminal and the base station; according to the path loss, determine the number of times N of sending the random access sequence that needs to be sent.

Further, the transmission symbols occupied by the N RACH transmission opportunities do not overlap.

Further, the transceiver 802 is configured to receive the synchronization signal block sent by the base station, and the mapping relationship between each synchronization signal block and multiple RACH transmission opportunities; The incoming sequences are respectively sent on N RACH transmission opportunities corresponding to the same synchronization signal block.

It should be noted that the processor 801 and the transceiver 802 of the terminal 800 in this embodiment can respectively execute the corresponding steps in the above-mentioned embodiments of the method for transmitting random access information, so they will not be repeated here. For details, please refer to the above corresponding transmission Description of method steps.

Referring to FIG. 9, FIG. 9 is a schematic structural diagram of a base station according to Embodiment 7 of the present invention. The base station 900 includes:

The processor 901 is configured to detect the random access sequence sent by the terminal according to the corresponding relationship between the random access sequence and the number of times of transmission; for the random access sequence corresponding to the number of times of transmission N is 1, independently detect on each RACH transmission opportunity Random access sequence; for the random access sequence corresponding to the number of transmissions N greater than 1, the random access sequence is combined and detected on N RACH transmission opportunities.

Further, referring to FIG. 10 , the base station 900 further includes:

The transceiver 902 is configured to send a synchronization signal block to a terminal, and a mapping relationship between each synchronization signal block and multiple RACH transmission opportunities.

It should be noted that the processor 901 and the transceiver 902 of the base station 900 in this embodiment can respectively execute the corresponding steps in the above-mentioned embodiments of the method for detecting random access information, so they are not repeated here. For details, please refer to the above corresponding detection Description of method steps.

The present invention also provides a base station that can perform any of the above configuration method embodiments to realize the configuration of random access information. The base station includes a memory, a processor and a computer program stored on the memory and running on the processor; the processor implements the above configuration method when executing the computer program, so it is not repeated here. For details, please refer to the description of the corresponding configuration method steps above.

The present invention also provides a terminal that can execute any of the above transmission method embodiments to realize the transmission of random access information. The terminal includes a memory, a processor, and a computer program stored on the memory and running on the processor; the processor implements the above-mentioned transmission method when executing the computer program, so it is not repeated here. For details, please refer to the description of the corresponding transmission method steps above.

The present invention also provides a base station that can perform any of the foregoing detection method embodiments to realize the detection of random access information. The base station includes a memory, a processor, and a computer program stored on the memory and running on the processor; the processor implements the above-mentioned detection method when executing the computer program, so it is not repeated here. For details, please refer to the description of the corresponding detection method steps above.

The present invention also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the above-mentioned configuration method, transmission method or detection method of random access information. The specific working process is the same as in the above configuration method embodiment, transmission method embodiment or detection method embodiment, so it will not be repeated here. For details, please refer to the above description of the corresponding transmission method or detection method steps.

To sum up, the present invention can ensure the coverage of uplink access, and at the same time, has less restrictions on the ratio of uplink and downlink, reduces user delay, and improves user experience.

The base station in this embodiment of the present invention may be a base station (Base Transceiver Station, BTS for short) in Global System of Mobile communication (GSM for short) or Code Division Multiple Access (CDMA for short), or A base station (NodeB, NB for short) in Wideband Code Division Multiple Access (WCDMA for short), an evolved base station (Evolutional Node B, eNB or eNodeB for short) in LTE, or a relay station or access point , or the base station in the future 5G network, etc., which are not limited here.

The terminal in this embodiment of the present invention may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or other service data connectivity to a user, a handheld device with a wireless connection function, or a wireless modem connected to other processing equipment. A wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), and the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a mobile phone Computers, for example, may be portable, pocket-sized, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange language and/or data with the wireless access network. For example, a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (Personal Digital Assistant) Assistant, referred to as PDA) and other devices. A wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, an access A terminal (Access Terminal), a user terminal (User Terminal), a user agent (User Agent), and a terminal (UserDevice or User Equipment) are not limited here.

The aforementioned computer readable media includes both persistent and non-permanent, removable and non-removable media and can be implemented by any method or technology for information storage. Information may be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change random access memory (PRAM for short), static random access memory (SRAM for short), dynamic random access memory (Dynamic Random Access Memory) , referred to as DRAM), other types of random access memory (Random Access Memory, referred to as RAM), read-only memory (Read Only Memory, referred to as ROM), Electrically Erasable Programmable read only memory (Electrically Erasable Programmable read only, referred to as EEPROM), flash memory or other memory technologies, Compact Disc Read Only Memory (CD-ROM), Digital Video Disc (DVD) or other optical storage, magnetic cartridges Magnetic tape, tape-disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (24)

1. A method for configuring random access information is applied to a base station, and is characterized by comprising the following steps:

transmitting configuration information of a random access sequence, the configuration information including: and the corresponding relation between the random access sequence and the sending times.

2. The method according to claim 1, wherein the mapping relationship between the random access sequence and the number of transmissions comprises:

the method comprises the following steps that at least two random access sequence groups and the sending times of random access sequences in each random access sequence group are obtained, wherein each random access sequence group comprises at least one random access sequence, and the random access sequences in each random access sequence group are different; or

The number of random access sequence groups, the number of random access sequences in each random access sequence group, and the number of times of sending the random access sequences in each random access sequence group.

3. A transmission method of random access information is applied to a terminal, and is characterized in that the transmission method comprises the following steps:

determining the sending times N of the random access sequence to be sent, wherein N is a positive integer greater than or equal to 1;

selecting a random access sequence in the random access sequence group corresponding to the N according to the corresponding relation between the random access sequence and the sending times;

the selected random access sequences are transmitted on N RACH transmission opportunities, respectively.

4. The transmission method according to claim 3, wherein the correspondence between the random access sequence and the number of transmissions comprises:

the method comprises the following steps that at least two random access sequence groups and the sending times of random access sequences in each random access sequence group are obtained, wherein each random access sequence group comprises at least one random access sequence, and the random access sequences in each random access sequence group are different; or

The number of random access sequence groups, the number of random access sequences in each random access sequence group, and the number of times of sending the random access sequences in each random access sequence group.

5. The transmission method according to claim 3, wherein the step of selecting one random access sequence from the group of random access sequences corresponding to the N according to the correspondence between the random access sequence and the number of transmissions further comprises:

receiving configuration information of the random access sequence sent by a base station, wherein the configuration information comprises: and the corresponding relation between the random access sequence and the sending times.

6. The transmission method according to claim 3, wherein the step of determining the number of transmissions N required to transmit the random access sequence comprises:

acquiring path loss between a terminal and a base station;

and determining the sending times N of the random access sequence to be sent according to the path loss.

7. The transmission method of claim 3, wherein transmission symbols occupied by the N RACH transmission opportunities do not overlap.

8. The transmission method of claim 3, wherein the step of transmitting the selected random access sequences on N RACH transmission opportunities, respectively, is preceded by the step of:

receiving synchronous signal blocks sent by a base station and mapping relations between each synchronous signal block and a plurality of RACH transmission opportunities;

the step of transmitting the selected random access sequences on N RACH transmission opportunities respectively comprises:

and respectively transmitting the selected random access sequences on N RACH transmission opportunities corresponding to the same synchronous signal block according to the mapping relation.

9. A detection method of random access information is applied to a base station, and is characterized in that the detection method comprises the following steps:

detecting a random access sequence sent by a terminal according to the corresponding relation between the random access sequence and the sending times;

for a random access sequence corresponding to a transmission number N of 1, detecting the random access sequence on each RACH transmission opportunity individually; for random access sequences corresponding to a number of transmissions N greater than 1, the random access sequences are combined and detected over N RACH transmission opportunities.

10. The detecting method according to claim 9, wherein before the step of determining the number of transmissions N of the random access sequence transmitted by the terminal according to the correspondence between the random access sequence and the number of transmissions, the method further comprises:

and sending the synchronous signal blocks to the terminal, and mapping relation between each synchronous signal block and a plurality of RACH transmission opportunities.

11. A base station, comprising:

a transceiver for transmitting configuration information of a random access sequence, the configuration information including: and the corresponding relation between the random access sequence and the sending times.

12. The base station of claim 11, wherein the correspondence of the random access sequence to the number of transmissions comprises:

the method comprises the following steps that at least two random access sequence groups and the sending times of random access sequences in each random access sequence group are obtained, wherein each random access sequence group comprises at least one random access sequence, and the random access sequences in each random access sequence group are different; or

The number of random access sequence groups, the number of random access sequences in each random access sequence group, and the number of times of sending the random access sequences in each random access sequence group.

13. A terminal, comprising:

the processor is used for determining the sending times N of the random access sequence needing to be sent, wherein the N is a positive integer greater than or equal to 1; selecting a random access sequence in the random access sequence group corresponding to the N according to the corresponding relation between the random access sequence and the sending times;

a transceiver for transmitting the selected random access sequences on the N RACH transmission opportunities, respectively.

14. The terminal of claim 13, wherein the correspondence between the random access sequence and the number of transmissions comprises:

the method comprises the following steps that at least two random access sequence groups and the sending times of random access sequences in each random access sequence group are obtained, wherein each random access sequence group comprises at least one random access sequence, and the random access sequences in each random access sequence group are different; or

The number of random access sequence groups, the number of random access sequences in each random access sequence group, and the number of times of sending the random access sequences in each random access sequence group.

15. The terminal of claim 13,

the transceiver is configured to receive configuration information of the random access sequence sent by a base station, where the configuration information includes: and the corresponding relation between the random access sequence and the sending times.

16. The terminal of claim 13,

the processor is configured to obtain a path loss between the terminal and the base station; and determining the sending times N of the random access sequence to be sent according to the path loss.

17. The terminal of claim 13, wherein transmission symbols occupied by the N RACH transmission opportunities do not overlap.

18. The terminal of claim 13,

the transceiver is used for receiving synchronous signal blocks sent by a base station and mapping relations between each synchronous signal block and a plurality of RACH transmission opportunities; and respectively transmitting the selected random access sequences on N RACH transmission opportunities corresponding to the same synchronous signal block according to the mapping relation.

19. A base station, comprising:

the processor is used for detecting the random access sequence sent by the terminal according to the corresponding relation between the random access sequence and the sending times; for a random access sequence corresponding to a transmission number N of 1, detecting the random access sequence on each RACH transmission opportunity individually; for random access sequences corresponding to a number of transmissions N greater than 1, the random access sequences are combined and detected over N RACH transmission opportunities.

20. The base station of claim 19, wherein the base station further comprises:

a transceiver for transmitting synchronization signal blocks to a terminal and mapping relationships between each of the synchronization signal blocks and a plurality of RACH transmission opportunities.

21. A base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements the configuration method according to claim 1 or 2.

22. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements the transmission method according to any one of claims 3 to 8.

23. A base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor implements the detection method according to claim 9 or 10 when executing the program.

24. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps in the configuration method as claimed in claim 1 or 2, or which program, when being executed by a processor, carries out the steps in the transmission method as claimed in any one of claims 3 to 8, or which program, when being executed by a processor, carries out the steps in the detection method as claimed in claim 9 or 10.

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