CN111294975A

CN111294975A - Random access method and device, storage medium, terminal and base station

Info

Publication number: CN111294975A
Application number: CN201910536672.7A
Authority: CN
Inventors: 刘星
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-06-16
Anticipated expiration: 2039-06-20
Also published as: CN111294975B

Abstract

A random access method and device, storage medium, terminal and base station are provided, the method comprises: receiving configuration information, wherein the configuration information is used for indicating a mapping relation between random access resources and channel quality indication parameters, and the channel quality indication parameters are used for indicating the channel quality of an uplink channel and/or a downlink channel; determining a channel quality indication parameter; and determining random access resources according to the channel quality indication parameters and the configuration information, and sending a leader sequence according to the random access resources. The scheme of the invention has the opportunity to configure uplink and downlink transmission resources which are more suitable for the channel quality of the UE, thereby improving the transmission quality.

Description

Random access method and device, storage medium, terminal and base station

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a random access method and apparatus, a storage medium, a terminal, and a base station.

Background

In a wireless communication network, a Random Access (Random Access) procedure exists, and an objective of the Random Access procedure is a procedure in which a terminal device (UE) requests an uplink resource from a network device, such as a base station. The random access procedure is divided into contention random access and non-contention random access. When the terminal equipment is not allocated with the special random access resource, the UE initiates the competitive random access, otherwise, the UE initiates the non-competitive random access.

Contention random access is divided into four steps, and messages sent in the four steps are respectively called Msg1-Msg 4. Specifically, the Msg1 may send a Preamble sequence (Preamble) on a random access time-frequency resource for the UE; msg2 may reply with a Random Access Response (RAR) message for the base station; the Msg3 is used for uplink scheduling transmission, and according to different purposes of a random access process initiated by the UE, the Msg3 carries different information; a contention resolution flag may be carried in the Msg4 to enable the UE to determine that the random access is successful.

However, in the related art, when the base station schedules the Msg2 and the Msg3, it is difficult to determine channel conditions, resulting in affecting transmission quality.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a random access method and device, a storage medium, a terminal and a base station, which have an opportunity to configure uplink and downlink transmission resources more suitable for the channel quality of UE, thereby improving the transmission quality.

To solve the above technical problem, an embodiment of the present invention provides a random access method, including the following steps: receiving configuration information, wherein the configuration information is used for indicating a mapping relation between random access resources and channel quality indication parameters, and the channel quality indication parameters are used for indicating the channel quality of an uplink channel and/or a downlink channel; determining a channel quality indication parameter; and determining random access resources according to the channel quality indication parameters and the configuration information, and sending a leader sequence according to the random access resources.

Optionally, the random access resource includes one or more of the following: preamble sequences, random access time domain resources, and random access frequency domain resources.

Optionally, the random access method is used for contention random access; the random access method further comprises: determining uplink transmission resources according to the uplink authorization information; sending uplink scheduling transmission by using the uplink transmission resource; a contention resolution indication is received.

Optionally, the channel quality indication parameter includes a PH or an MCS; and the uplink transmission resource is determined by the base station according to the PH or MCS.

Optionally, the random access resource is the preamble sequence; determining a random access resource according to the channel quality indication parameter and the configuration information, and sending a preamble sequence according to the random access resource comprises: determining a corresponding leader sequence according to the value of the channel quality indication parameter and the configuration information; and transmitting the corresponding leader sequence.

Optionally, the random access resource is the random access time domain resource and/or the random access frequency domain resource; determining a random access resource according to the channel quality indication parameter and the configuration information, and sending a preamble sequence according to the random access resource comprises: determining corresponding random access time domain resources and/or random access frequency domain resources according to the value of the channel quality indication parameter and the configuration information; and sending the leader sequence on the corresponding random access time domain resource and/or random access frequency domain resource.

Optionally, the random access resource is the preamble sequence and the random access time domain resource; determining a random access resource according to the channel quality indication parameter and the configuration information, and sending a preamble sequence according to the random access resource comprises: determining corresponding random access time domain resources and a leader sequence according to the value of the channel quality indication parameter and the configuration information; transmitting the preamble sequence on the corresponding random access time domain resource; or, the random access resource is the preamble sequence and the random access frequency domain resource; determining a random access resource according to the channel quality indication parameter and the configuration information, and sending a preamble sequence according to the random access resource comprises: determining corresponding random access frequency domain resources and a leader sequence according to the value of the channel quality indication parameter and the configuration information; and sending the leader sequence on the corresponding random access frequency domain resource.

Optionally, the random access resource is the preamble sequence, the random access time domain resource, and the random access frequency domain resource; determining a random access resource according to the channel quality indication parameter and the configuration information, and sending a preamble sequence according to the random access resource comprises: determining corresponding random access time domain resources, random access frequency domain resources and a leader sequence according to the value of the channel quality indication parameter and the configuration information; and sending the leader sequence on the corresponding random access time domain resource and the random access frequency domain resource.

Optionally, the channel quality indication parameter is selected from: CQI, PH, CQI and PH, MCS.

To solve the above technical problem, an embodiment of the present invention provides a random access method, including the following steps: configuring and sending configuration information, wherein the configuration information is used for indicating a mapping relation between random access resources and channel quality indication parameters, and the channel quality indication parameters are used for indicating the channel quality of an uplink channel and/or a downlink channel; and receiving a leader sequence, wherein the leader sequence is sent by the terminal according to random access resources, and the random access resources are determined according to the channel quality indication parameters and the configuration information.

Optionally, the random access method further includes: and determining uplink transmission resources according to the leader sequence and configuring a random access response message, wherein uplink authorization information in the random access response message is determined according to the uplink transmission resources.

Optionally, the random access resource is the preamble sequence; determining uplink transmission resources according to the preamble sequence and configuring a random access response message includes: determining the value of the channel quality indication parameter according to the preamble sequence and the configuration information; determining the uplink transmission resource according to the value of the channel quality indication parameter; adopting the uplink transmission resource to form uplink authorization information in the random access response message; configuring the random access response message.

Optionally, the random access resource is the random access time domain resource and/or the random access frequency domain resource; determining uplink transmission resources according to the preamble sequence and configuring a random access response message includes: determining the value of the channel quality indication parameter according to the random access time domain resource and/or the random access frequency domain resource where the leader sequence is located and the configuration information; determining the uplink transmission resource according to the value of the channel quality indication parameter; adopting the uplink transmission resource to form uplink authorization information in the random access response message; configuring the random access response message.

Optionally, the random access resource is the preamble sequence and the random access time domain resource; determining uplink transmission resources according to the preamble sequence and configuring a random access response message includes: determining the value of the channel quality indication parameter according to the leader sequence, the random access time domain resource where the leader sequence is located and the configuration information; determining the uplink transmission resource and a leader sequence according to the value of the channel quality indication parameter; adopting the uplink transmission resource to form uplink authorization information in the random access response message; configuring the random access response message; or, the random access resource is the preamble sequence, the random access frequency domain resource and the preamble sequence; determining uplink transmission resources according to the preamble sequence and configuring a random access response message includes: determining the value of the channel quality indication parameter according to the leader sequence, the random access frequency domain resource where the leader sequence is located and the configuration information; determining the uplink transmission resource according to the value of the channel quality indication parameter; adopting the uplink transmission resource to form uplink authorization information in the random access response message; configuring the random access response message.

Optionally, the random access resource is the preamble sequence, the random access time domain resource, and the random access frequency domain resource; determining uplink transmission resources according to the preamble sequence and configuring a random access response message includes: determining the value of the channel quality indication parameter according to the leader sequence, the random access time domain resource and the random access frequency domain resource where the leader sequence is located and the configuration information; determining the uplink transmission resource according to the value of the channel quality indication parameter; adopting the uplink transmission resource to form uplink authorization information in the random access response message; configuring the random access response message.

Optionally, the random access method is used for contention random access; the random access method further comprises: receiving an uplink scheduling transmission on the uplink transmission resource; and sending the competition resolving identification.

Optionally, the channel quality indication parameter includes CQI or MCS; the random access method further comprises: determining downlink transmission resources according to the CQI or the MCS, wherein the downlink transmission resources are used for bearing the random access response message; and sending the random access response message by adopting the downlink transmission resource.

To solve the foregoing technical problem, an embodiment of the present invention provides a random access apparatus, including: an information receiving module, adapted to receive configuration information, where the configuration information is used to indicate a mapping relationship between a random access resource and a channel quality indication parameter, and the channel quality indication parameter is used to indicate channel quality of an uplink channel and/or a downlink channel; an indication parameter determination module adapted to determine a channel quality indication parameter; and the leading sequence sending module is suitable for determining random access resources according to the channel quality indication parameters and the configuration information and sending leading sequences according to the random access resources.

To solve the foregoing technical problem, an embodiment of the present invention provides a random access apparatus, including: an information sending module, adapted to configure and send configuration information, where the configuration information is used to indicate a mapping relationship between a random access resource and a channel quality indication parameter, and the channel quality indication parameter is used to indicate channel quality of an uplink channel and/or a downlink channel; a preamble sequence receiving module, adapted to receive a preamble sequence, where the preamble sequence is sent by a terminal according to a random access resource, and the random access resource is determined according to a channel quality indication parameter and the configuration information.

To solve the foregoing technical problems, embodiments of the present invention provide a storage medium having stored thereon computer instructions, which when executed perform the steps of the random access method described above.

In order to solve the foregoing technical problem, an embodiment of the present invention provides a terminal, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the random access method when executing the computer instructions.

In order to solve the above technical problem, an embodiment of the present invention provides a base station, including a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the steps of the random access method when executing the computer instructions.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:

in the embodiment of the invention, by configuring the mapping relation between the random access resources and the channel quality indication parameters, the UE can determine a suitable random access resource sending preamble sequence according to the channel quality indication parameter and the mapping relation, so that the base station determines the channel quality condition of the UE, thereby, there is an opportunity to configure more appropriate uplink transmission resources for the UE and to select more appropriate downlink transmission resources for sending the random access response message, compared with the prior art, the base station has difficulty determining the channel condition, may randomly select downlink transmission resources to transmit a random access response message, or randomly selecting uplink transmission resources to enable the UE to send uplink scheduling transmission and perform uplink transmission, and adopting the scheme of the embodiment of the invention, the uplink and downlink transmission resources which are more suitable for the channel quality of the UE are configured, thereby improving the transmission quality.

Further, the random access resource is the preamble sequence, and the UE may determine the preamble sequence according to the channel quality indication parameter, so that the base station determines the channel quality indication parameter according to the received preamble sequence, and further has an opportunity to configure uplink and downlink transmission resources more suitable for the channel quality of the UE.

Further, the random access resource is the random access time domain resource and/or the random access frequency domain resource, and the UE may determine the random access time domain resource and/or the random access frequency domain resource according to the channel quality indication parameter, and then send the preamble sequence on the random access time domain resource and/or the random access frequency domain resource, so that the base station determines the channel quality indication parameter according to which random access time domain resource and/or the random access frequency domain resource the preamble sequence is received, and then has an opportunity to configure uplink and downlink transmission resources more suitable for the channel quality of the UE.

Drawings

Fig. 1 is a flow chart of a random access method in an embodiment of the present invention;

FIG. 2 is a flowchart of a first embodiment of step S13 of FIG. 1;

FIG. 3 is a flowchart of a second embodiment of step S13 of FIG. 1;

FIG. 4 is a flowchart of a third embodiment of step S13 of FIG. 1;

fig. 5 is a data flow diagram of another random access method in an embodiment of the present invention;

fig. 6 is a flowchart of another random access method in an embodiment of the present invention;

FIG. 7 is a flowchart of a first embodiment of step S63 of FIG. 6;

FIG. 8 is a flowchart of a second embodiment of step S63 of FIG. 6;

FIG. 9 is a flowchart of a third embodiment of step S63 of FIG. 6;

fig. 10 is a data flow diagram of a further random access method in an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a random access apparatus according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of another random access apparatus in an embodiment of the present invention.

Detailed Description

As previously described, when the UE is not allocated a dedicated random access resource, the UE initiates a contention random access.

Specifically, in four steps of contention for random access, the messages sent are referred to as Msg1-Msg4, respectively.

Here, Msg1 generally refers to UE sending a preamble sequence on a random access time-frequency resource, and both the random access time-frequency resource and the preamble sequence may be randomly selected due to contention random access.

The Msg2 may be a base station reply RAR, and specifically, the Msg2 may carry timing advance information (TA), Random Access Preamble Identifier (RAPID), backoff parameter (backoff parameter), and uplink grant (uplink grant). Wherein, the uplink grant may be used to indicate the time-frequency resource for sending the Msg 3.

In the specific implementation, the UE checks whether the RAPID is the ID of the preamble sequence sent by itself in step 1 (sending Msg1), if so, the UE proceeds to the next step, and if the UE does not receive the RAR with the ID of the preamble sequence sent by itself within a certain time window, the UE re-initiates step 1 (sending Msg1), where, since the preamble sequence is randomly selected by the UE, the UE receives the RAR with its RAPID and cannot guarantee the success of random access, steps three and four need to be performed to complete the contention resolution process.

Further, for random access processes triggered by different reasons, the contents of Msg3 may be different, if the UE requests to access the base station, the UE carries a connection establishment request in Msg3, and carries a core network identifier or a random number of the UE, and if the UE has uplink data arriving but uplink is out of step, the Msg3 carries identification information of the UE in the current cell: a Cell Radio Network Temporary Identifier (C-RNTI), if the Msg3 resource is large enough, a buffer status report (bsr) may be put down to indicate how much uplink data is to be sent by the UE.

Further, according to whether the UE reports the C-RNTI in the Msg3 or not, the content of the Msg4 can be different, if the UE reports the C-RNTI in the Msg3, the Msg4 directly uses the C-RNTI for scrambling scheduling, the specific content of the Msg4 is irrelevant to the random access process, the UE receives the C-RNTI for scrambling and considers that the random access is successful, if the UE does not report the C-RNTI in the Msg3 but reports the core network identifier or the random number, the Msg4 carries a contention resolution identifier, the UE needs to check whether the received contention resolution identifier is the same as the core network identifier or the random number sent by the UE in the Msg3, and if the received contention resolution identifier is the same as the core network identifier or the random number sent by the UE in the Msg 35.

For non-contention random access, the preamble sequence may be allocated by the base station, so that the base station knows which UE requests random access when receiving the preamble sequence, and the UE knows that the random access is successful only by receiving RAR, and there is no contention resolution, so that the non-contention random access only includes two steps of Msg1 and Msg 2.

The inventor of the present invention has found through research that, in the prior art, when a base station schedules Msg2 and Msg3, it is difficult to determine the channel condition, and therefore, the base station may randomly select a downlink transmission resource to send Msg2, or randomly select an uplink transmission resource to enable a UE to send Msg3 and perform uplink transmission, and this random selection condition often causes inappropriate transmission resources and affects transmission quality.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Referring to fig. 1, fig. 1 is a flowchart of a random access method in an embodiment of the present invention. The random access method may be used on the UE side, and may include steps S11 to S13:

step S11: receiving configuration information, wherein the configuration information is used for indicating a mapping relation between random access resources and channel quality indication parameters, and the channel quality indication parameters are used for indicating the channel quality of an uplink channel and/or a downlink channel;

step S12: determining a channel quality indication parameter;

step S13: and determining random access resources according to the channel quality indication parameters and the configuration information, and sending a leader sequence according to the random access resources.

In a specific implementation of step S11, the UE receives configuration information, which may be received from the base station. The configuration information is used for indicating the mapping relation between the random access resources and the channel quality indication parameters.

Further, the Channel quality indication parameter may be selected from a Channel Quality Indicator (CQI), a Power Headroom (PH), a CQI and a PH, and a Modulation and Coding Scheme (MCS).

The CQI is mainly determined by detecting a Signal to interference plus noise ratio (SINR), and may represent channel quality of a downlink channel.

The power headroom is a difference between the maximum transmission power of the UE and the transmission power of a Physical Uplink Shared Channel (PUSCH) obtained by current estimation, and may represent the quality of the uplink channel.

The MCS is used to indicate the strategy to be adopted in actual scheduling, e.g., the base station may randomly select the MCS to be adopted by the UE in actual scheduling.

In the embodiment of the present invention, if determining the uplink MCS desired by the UE, the base station may refer to the uplink MCS desired by the UE to determine the MCS to be used in actual scheduling when scheduling the Msg3 and subsequent uplink transmission.

It should be noted that, the 3GPP may number the cqi for indicating differentiation, and therefore, in the present invention, the cqi may be indicated by using an index value of the cqi. For example, 3GPP may number MCS to indicate differentiation, and thus in the present invention, index value of MCS may be employed to indicate MCS.

Further, the random access resources may include one or more of: preamble sequences, random access time domain resources, and random access frequency domain resources.

The preamble sequence may be a different sequence for indicating the channel quality indication parameter, that is, the specific content of the preamble sequence indicates the channel quality indication parameter. For example, a total of N preamble sequences are used for random access, where preamble sequences No. 1 to M may indicate channel quality indicator parameters CQI ═ 1 and CQI ═ 2, preamble sequences No. M +1 to P may indicate channel quality parameters CQI ═ 3, CQI ═ 4, and CQI ═ 5, and preamble columns No. P +1 to N may indicate CQI ═ 6. The base station may determine the channel quality indication parameter after receiving the preamble sequence.

The random access time domain resource may have a preset mapping relationship with the channel quality indication parameter, for example, a preamble sequence may be transmitted by using a part of the random access time domain resource, and may indicate that a channel quality indication parameter CQI is 1, and a preamble sequence may be transmitted by using another part of the random access time domain resource, and may indicate that a channel quality indication parameter CQI is 2. Similarly, the random access frequency domain resource may have a preset mapping relationship with the channel quality indication parameter, for example, a preamble sequence may be transmitted using a part of the random access frequency domain resource, and may indicate that the channel quality indication parameter CQI is 1, and a preamble sequence may be transmitted using another part of the random access frequency domain resource, and may indicate that the channel quality indication parameter CQI is 2. The base station may determine the channel quality indication parameter according to the time domain resource and/or the frequency domain resource used for transmitting the preamble sequence after receiving the preamble sequence.

In a specific implementation of step S12, the UE may determine its own channel quality indication parameters.

In particular, the channel quality indication parameter may be determined in a suitable way, for example by detecting a signal to noise plus interference ratio when setting the channel quality indication parameter to CQI.

In the embodiment of the present invention, the specific manner for the UE to determine the channel quality indication parameter is not limited.

In a specific implementation of step S13, the UE may determine a random access resource according to the channel quality indicator parameter and the configuration information, and send a preamble sequence according to the random access resource. It should be noted that, when the UE sends the preamble sequence to the base station, the base station may determine the uplink transmission resource according to the preamble sequence and configure the random access response message, where the uplink grant information in the random access response message is determined according to the uplink transmission resource.

In a first specific implementation manner of the embodiment of the present invention, the random access resource may be the preamble sequence.

Referring to fig. 2, fig. 2 is a flowchart of a first specific implementation of step S13 in fig. 1. The step of determining the random access resource according to the channel quality indication parameter and the configuration information and transmitting the preamble sequence according to the random access resource may include steps S21 to S22, and each step is described below.

In step S21, a corresponding preamble sequence is determined according to the value of the channel quality indicator parameter and the configuration information.

In step S22, the corresponding preamble sequence is transmitted.

In a specific implementation, by setting the random access resource as the preamble sequence, after receiving the preamble sequence, the base station may determine the value of the channel quality indicator parameter according to the preamble sequence and the configuration information, further determine the uplink transmission resource according to the value of the channel quality indicator parameter, and then form uplink authorization information in the random access response message by using the uplink transmission resource, thereby configuring a random access response message to be sent to the UE in the subsequent steps.

In the embodiment of the present invention, the random access resource is the preamble sequence, and the UE may determine the preamble sequence according to the channel quality indication parameter, so that the base station determines the channel quality indication parameter according to the received preamble sequence, and further has an opportunity to configure an uplink and downlink transmission resource more suitable for the channel quality of the UE.

In the embodiment of the present invention, the uplink transmission resource includes an uplink time-frequency resource and/or an uplink transmission parameter, the downlink transmission resource includes a downlink time-frequency resource and/or a downlink transmission parameter, and the uplink transmission resource and the downlink transmission resource include an uplink time-frequency resource and/or an uplink transmission parameter.

In a second specific implementation manner of the embodiment of the present invention, the random access resource may be the random access time domain resource and/or the random access frequency domain resource.

Referring to fig. 3, fig. 3 is a flowchart of a second specific implementation of step S13 in fig. 1. The step of determining the random access resource according to the channel quality indication parameter and the configuration information and transmitting the preamble sequence according to the random access resource may include steps S31 to S32, and each step is described below.

In step S31, according to the value of the channel quality indicator parameter and the configuration information, a corresponding random access time domain resource and/or random access frequency domain resource is determined.

In step S32, the preamble sequence is transmitted on the corresponding random access time domain resource and/or random access frequency domain resource.

In a specific implementation, by setting the random access resource as a random access time domain resource and/or a random access frequency domain resource, after receiving a preamble sequence, a base station may determine a value of the channel quality indicator parameter according to which random access time domain resource and/or a random access frequency domain resource the preamble sequence is located in, and according to the configuration information, further determine the uplink transmission resource according to the value of the channel quality indicator parameter, and then form uplink authorization information in the random access response message by using the uplink transmission resource, thereby configuring a random access response message to be sent to the UE in a subsequent step.

In the embodiment of the present invention, the random access resource is the random access time domain resource and/or the random access frequency domain resource, and the UE may determine the random access time domain resource and/or the random access frequency domain resource according to the channel quality indication parameter, and then send the preamble sequence on the random access time domain resource and/or the random access frequency domain resource, so that the base station determines the channel quality indication parameter according to which random access time domain resource and/or the random access frequency domain resource the preamble sequence is received on, and then has an opportunity to configure uplink and downlink transmission resources more suitable for the channel quality of the UE.

In a third specific implementation manner of the embodiment of the present invention, the random access resource may be the preamble sequence, the random access time domain resource, and the random access frequency domain resource.

Referring to fig. 4, fig. 4 is a flowchart of a third embodiment of step S13 in fig. 1. The step of determining the random access resource according to the channel quality indication parameter and the configuration information and transmitting the preamble sequence according to the random access resource may include steps S41 to S42, and each step is described below.

In step S41, according to the value of the channel quality indicator parameter and the configuration information, a corresponding random access time domain resource, a random access frequency domain resource, and a preamble sequence are determined.

In step S42, the preamble sequence is transmitted on the corresponding random access time domain resource and the random access frequency domain resource.

In a specific implementation, by setting the random access resource as a preamble sequence, the random access time domain resource, and the random access frequency domain resource, the base station can determine the value of the channel quality indicator parameter according to the content of the preamble sequence and the random access time domain resource and/or the random access frequency domain resource in which the preamble sequence is located after receiving the preamble sequence, and according to the configuration information. And then, determining the uplink transmission resource according to the value of the channel quality indication parameter, and then adopting the uplink transmission resource to form uplink authorization information in the random access response message, thereby configuring the random access response message to be sent to the UE in the subsequent steps.

By adopting a plurality of random access resources, the values of a plurality of channel quality indication parameters are indicated, so that the complexity of indication is improved.

In this embodiment of the present invention, the random access resource is the preamble sequence, the random access time domain resource, and the random access frequency domain resource, and the UE may determine the preamble sequence, the random access time domain resource, and the random access frequency domain resource according to the channel quality indication parameter, and then send the preamble sequence on the random access time domain resource and the random access frequency domain resource, so that the base station determines the channel quality indication parameter according to which preamble sequence is received on which random access time domain resource and random access frequency domain resource, and then has an opportunity to configure uplink and downlink transmission resources more suitable for the channel quality of the UE.

In a fourth specific implementation manner of the embodiment of the present invention, the random access resource may be the preamble sequence and the random access time domain resource.

Specifically, the step of determining a random access resource according to the channel quality indicator parameter and the configuration information, and sending a preamble sequence according to the random access resource may include: determining corresponding random access time domain resources and a leader sequence according to the value of the channel quality indication parameter and the configuration information; and sending the leader sequence on the corresponding random access time domain resource.

In a specific implementation, by setting the random access resource as a preamble sequence and the random access time domain resource, after receiving the preamble sequence, the base station may determine the value of the channel quality indicator parameter according to the content of the preamble sequence and the time domain resource in which the preamble sequence is located, and according to the configuration information. And then, determining the uplink transmission resource according to the value of the channel quality indication parameter, and then adopting the uplink transmission resource to form uplink authorization information in the random access response message, thereby configuring the random access response message to be sent to the UE in the subsequent steps.

In the embodiment of the present invention, the random access resource is the preamble sequence and the random access time domain resource, and the UE may determine the preamble sequence and the random access time domain resource according to the channel quality indication parameter, and further send the preamble sequence on the random access time domain resource, so that the base station determines the channel quality indication parameter according to which preamble sequence is received on which random access time domain resource, and further has an opportunity to configure an uplink and downlink transmission resource more suitable for the channel quality of the UE.

In a fifth specific implementation manner of the embodiment of the present invention, the random access resource may be the preamble sequence and the random access frequency domain resource.

Specifically, the step of determining a random access resource according to the channel quality indicator parameter and the configuration information, and sending a preamble sequence according to the random access resource may include: determining corresponding random access frequency domain resources and a leader sequence according to the value of the channel quality indication parameter and the configuration information; and sending the leader sequence on the corresponding random access frequency domain resource.

In a specific implementation, by setting the random access resource as a preamble sequence and the random access frequency domain resource, after receiving the preamble sequence, the base station may determine the value of the channel quality indicator parameter according to the content of the preamble sequence and which frequency domain resource the preamble sequence is located in, and according to the configuration information. And then, determining the uplink transmission resource according to the value of the channel quality indication parameter, and then adopting the uplink transmission resource to form uplink authorization information in the random access response message, thereby configuring the random access response message to be sent to the UE in the subsequent steps.

In the embodiment of the present invention, the random access resource is the preamble sequence and the random access frequency domain resource, and the UE may determine the preamble sequence and the random access frequency domain resource according to the channel quality indication parameter, and further send the preamble sequence on the random access frequency domain resource, so that the base station determines the channel quality indication parameter according to which preamble sequence is received on which random access frequency domain resource, and further has an opportunity to configure an uplink and downlink transmission resource more suitable for the channel quality of the UE.

In the embodiment of the invention, by adopting various settings, a user can select and use the device according to specific conditions, and the convenience of the user is improved.

Further, in the embodiment of the present invention, the random access method may be used for contention random access; the random access method may further include: determining uplink transmission resources according to the uplink authorization information; sending uplink scheduling transmission by using the uplink transmission resource; a contention resolution indication is received.

Further, the channel quality indication parameter may include PH or MCS; optionally, the uplink transmission resource is determined by the base station according to the PH or MCS.

In this embodiment of the present invention, the PH and the uplink MCS of the MCS may be used to characterize the quality of an uplink channel, so that the base station has an opportunity to configure an uplink transmission resource more suitable for the channel quality of the UE according to the PH or the MCS.

Further, the channel quality indication parameter may include CQI or MCS; optionally, the downlink transmission resource may be determined by the base station according to the CQI or MCS.

In the embodiment of the present invention, the downlink MCS in the CQI and the MCS may be used to characterize the quality of a downlink channel, so that the base station has an opportunity to configure a downlink transmission resource with higher channel quality more suitable for the UE according to the CQI or the MCS. The downlink transmission resource may be used to send a random access response message.

Referring to fig. 5, fig. 5 is a data flow diagram of another random access method in the embodiment of the present invention. The still another random access method may include steps S51 to S59, each of which is described below.

In step S51, the UE51 receives the configuration information from the base station 52.

In step S52, the UE51 determines a channel quality indication parameter.

In step S53, the UE51 determines a random access resource according to the channel quality indication parameter and the configuration information.

In step S54, the UE51 transmits a preamble sequence to the base station 52 according to the random access resource.

In step S55, the base station 52 determines the uplink transmission resource according to the preamble sequence and configures a random access response message.

In step S56, the UE51 receives a random access response message from the base station 52.

In step S57, the UE51 determines uplink transmission resources according to the uplink grant information.

In step S58, the UE51 transmits an uplink scheduled transmission to the base station 52 using the uplink transmission resource.

In step S59, the UE51 receives the contention resolution identity from the base station 52.

In the specific implementation, please refer to the description of steps S1 to S4 for further details regarding steps S51 to S59, which are not repeated herein.

Referring to fig. 6, fig. 6 is a flowchart of another random access method in an embodiment of the present invention. The another random access method may be used on the base station side, and may include steps S61 to S62, and may further include steps S61 to S63:

in a specific implementation of step S61, the base station may configure and send configuration information, where the configuration information is used to indicate a mapping relationship between the random access resource and the channel quality indication parameter.

Further, the channel quality indication parameter may be selected from: CQI, PH, CQI and PH, MCS.

In the specific implementation, please refer to the step in fig. 1 for further details regarding the random access resource and the cqi parameter, which will not be described herein again.

In a specific implementation of step S62, the base station may receive a preamble sequence from the UE, where the preamble sequence is transmitted by the terminal according to the random access resource, and the random access resource is determined according to the channel quality indication parameter and the configuration information.

In a specific implementation, please refer to the step in fig. 1 for further details regarding the UE determining the preamble sequence and sending the preamble sequence to the base station, which is not described herein again.

In a specific implementation of step S63, the base station may determine uplink transmission resources according to the preamble sequence and configure a random access response message, where uplink grant information in the random access response message is determined according to the uplink transmission resources.

Further, the channel quality indication parameter may include PH or MCS; the uplink transmission resource may be determined by the base station according to the PH or MCS.

In the embodiment of the present invention, the PH and the uplink MCS of the MCS may be used to characterize the quality of an uplink channel, so that the base station may have an opportunity to configure an uplink transmission resource more suitable for the channel quality of the UE according to the PH or the MCS.

Further, the channel quality indication parameter includes CQI or MCS; the random access method may further include: determining downlink transmission resources according to the CQI or the MCS, wherein the downlink transmission resources are used for bearing the random access response message; and sending the random access response message by adopting the downlink transmission resource.

In the embodiment of the present invention, the downlink MCS in the CQI and the MCS may be used to characterize the quality of a downlink channel, so that the base station has an opportunity to configure a downlink transmission resource more suitable for the channel quality of the UE according to the CQI or the MCS.

Referring to fig. 7, fig. 7 is a flowchart of a first specific implementation of step S63 in fig. 6. The step of determining uplink transmission resources according to the preamble sequence and configuring the random access response message may include steps S71 to S74, which are described below.

In step S71, a value of the channel quality indicator parameter is determined according to the preamble sequence and the configuration information.

In step S72, the uplink transmission resource is determined according to the value of the channel quality indicator parameter.

In step S73, the uplink transmission resource is used to form the uplink grant information in the random access response message.

In step S74, the random access response message is configured.

In the embodiment of the invention, the random access resource is the leader sequence, and the base station can determine the channel quality indication parameter according to the received leader sequence, so as to have an opportunity to configure the uplink and downlink transmission resources more suitable for the channel quality of the UE.

Referring to fig. 8, fig. 8 is a flowchart of a second specific implementation of step S63 in fig. 6. The step of determining uplink transmission resources according to the preamble sequence and configuring the random access response message may include steps S81 to S84, which are described below.

In step S81, a value of the channel quality indicator parameter is determined according to the random access time domain resource and/or the random access frequency domain resource where the preamble sequence is located and the configuration information.

In step S82, the uplink transmission resource is determined according to the value of the channel quality indicator parameter.

In step S83, the uplink transmission resource is used to form the uplink grant information in the random access response message.

In step S84, the random access response message is configured.

In a specific implementation, by setting the random access resource as the random access time domain resource and/or the random access frequency domain resource, after receiving the preamble sequence, the base station may determine the value of the channel quality indicator parameter according to which time domain resource and/or frequency domain resource the preamble sequence is located in, and according to the configuration information, further determine the uplink transmission resource according to the value of the channel quality indicator parameter, and then form uplink authorization information in the random access response message by using the uplink transmission resource, thereby configuring a random access response message to be sent to the UE in the subsequent steps.

In the embodiment of the present invention, the random access resource is the random access time domain resource and/or the random access frequency domain resource, and the base station may determine the channel quality indication parameter according to which random access time domain resource and/or random access frequency domain resource the preamble sequence is received on, so as to have an opportunity to configure the uplink and downlink transmission resources more suitable for the channel quality of the UE.

Referring to fig. 9, fig. 9 is a flowchart of a third embodiment of step S63 in fig. 6. The step of determining uplink transmission resources according to the preamble sequence and configuring the random access response message may include steps S91 to S94, which are described below.

In step S91, a value of the channel quality indicator parameter is determined according to the preamble sequence, the random access time domain resource and the random access frequency domain resource where the preamble sequence is located, and the configuration information.

In step S92, the uplink transmission resource is determined according to the value of the channel quality indicator parameter.

In step S93, the uplink transmission resource is used to form the uplink grant information in the random access response message.

In step S94, the random access response message is configured.

In a specific implementation, by setting the random access resource as a preamble sequence, the random access time domain resource, and the random access frequency domain resource, the base station can determine the value of the channel quality indication parameter according to the content of the preamble sequence and the time domain resource and/or the frequency domain resource in which the preamble sequence is located after receiving the preamble sequence, and according to the configuration information. And then, determining the uplink transmission resource according to the value of the channel quality indication parameter, and then adopting the uplink transmission resource to form uplink authorization information in the random access response message, thereby configuring the random access response message to be sent to the UE in the subsequent steps.

In the embodiment of the present invention, the random access resources are the preamble sequence, the random access time domain resource, and the random access frequency domain resource, so that the base station can determine the channel quality indication parameter according to which preamble sequence is received on which random access time domain resource and random access frequency domain resource, and further have an opportunity to configure uplink and downlink transmission resources more suitable for the channel quality of the UE.

Specifically, the step of determining uplink transmission resources according to the preamble sequence and configuring a random access response message may include: determining the value of the channel quality indication parameter according to the leader sequence, the random access time domain resource where the leader sequence is located and the configuration information; determining the uplink transmission resource according to the value of the channel quality indication parameter; adopting the uplink transmission resource to form uplink authorization information in the random access response message; configuring the random access response message.

In the embodiment of the present invention, the random access resources are the preamble sequence and the random access time domain resource, so that the base station can determine the channel quality indication parameter according to which preamble sequence is received on which random access time domain resource, and further have an opportunity to configure uplink and downlink transmission resources more suitable for the channel quality of the UE.

Specifically, the step of determining uplink transmission resources according to the preamble sequence and configuring a random access response message may include: determining the value of the channel quality indication parameter according to the leader sequence, the random access frequency domain resource where the leader sequence is located and the configuration information; determining the uplink transmission resource according to the value of the channel quality indication parameter; adopting the uplink transmission resource to form uplink authorization information in the random access response message; configuring the random access response message.

In the embodiment of the present invention, the random access resources are the preamble sequence and the random access frequency domain resource, so that the base station can determine the channel quality indication parameter according to which preamble sequence is received on which random access frequency domain resource, and further have an opportunity to configure uplink and downlink transmission resources more suitable for the channel quality of the UE.

Referring to fig. 10, fig. 10 is a data flow diagram of a random access method according to another embodiment of the present invention. The still another random access method may include steps S101 to S109, and the respective steps are explained below.

In step S101, the base station 102 configures configuration information.

In step S102, the base station 102 transmits configuration information to the UE 101.

In step S103, the UE101 determines a channel quality indication parameter and determines a random access resource.

In step S104, the base station 102 receives a preamble sequence from the UE 101.

In step S105, the base station 102 determines the uplink transmission resource according to the preamble sequence and configures a random access response message.

In step S106, a random access response message is transmitted.

In step S107, the UE101 determines an uplink transmission resource according to the uplink grant information.

In step S108, the base station 102 receives an uplink scheduled transmission from the UE101 on the uplink transmission resource.

In step S109, the base station 102 transmits a contention resolution identity to the UE 101.

In the specific implementation, more details about step S101 to step S109 are performed with reference to the descriptions of steps in fig. 6 to 9, which are not described herein again.

In the embodiment of the invention, the base station can determine the channel quality condition of the UE, so that the base station has an opportunity to configure more proper uplink transmission resources for the UE and has an opportunity to select more proper downlink transmission resources to send the random access response message.

Referring to fig. 11, fig. 11 is a schematic structural diagram of a random access apparatus in an embodiment of the present invention. The random access apparatus may include:

an information receiving module 111, adapted to receive configuration information, where the configuration information is used to indicate a mapping relationship between a random access resource and a channel quality indication parameter, and the channel quality indication parameter is used to indicate channel quality of an uplink channel and/or a downlink channel;

an indication parameter determination module 112 adapted to determine a channel quality indication parameter;

a preamble sequence sending module 113, adapted to determine a random access resource according to the channel quality indication parameter and the configuration information, and send a preamble sequence according to the random access resource.

For the principle, specific implementation and beneficial effects of the random access apparatus, please refer to the related description about the random access method shown in the foregoing and fig. 1 to 4, which is not repeated herein.

Referring to fig. 12, fig. 12 is a schematic structural diagram of a random access apparatus according to an embodiment of the present invention. The random access apparatus may include:

an information sending module 121, adapted to configure and send configuration information, where the configuration information is used to indicate a mapping relationship between a random access resource and a channel quality indication parameter, and the channel quality indication parameter is used to indicate channel quality of an uplink channel and/or a downlink channel;

a preamble sequence receiving module 122, adapted to receive a preamble sequence, where the preamble sequence is sent by a terminal according to a random access resource, and the random access resource is determined according to a channel quality indication parameter and the configuration information.

For the principle, specific implementation and beneficial effects of the random access apparatus, please refer to the related description about the random access method shown in the foregoing and fig. 6 to 9, which is not repeated herein.

It should be noted that the technical solution of the present invention is applicable to a 5G (5Generation) communication system, a 4G communication system, a 3G communication system, and various future new communication systems, such as 6G, 7G, and the like.

The technical solution of the present invention is also applicable to different network architectures, including but not limited to relay network architecture, dual link architecture, Vehicle-to-event architecture, and the like.

In this embodiment of the present application, the Core Network may be an evolved packet Core (EPC for short), a 5G Core Network (5G Core Network), or may be a novel Core Network in a future communication system. The 5G core network is composed of a set of devices, and implements Access and mobility Management functions (AMF) of functions such as mobility Management, User Plane Functions (UPF) providing functions such as packet routing and forwarding and qos (quality of service) Management, Session Management Functions (SMF) providing functions such as Session Management, IP address allocation and Management, and the like. The EPC may be composed of an MME providing functions such as mobility management, Gateway selection, etc., a Serving Gateway (S-GW) providing functions such as packet forwarding, etc., and a PDN Gateway (P-GW) providing functions such as terminal address allocation, rate control, etc.

An embodiment of the present invention further provides a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps of the random access method shown in fig. 1 to 4 are executed.

It should be understood that, in the embodiment of the present application, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM) which acts as external cache memory. By way of example and not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).

An embodiment of the present invention further provides a terminal, where a computer instruction is stored on the terminal, and a computer instruction capable of running on the processor is stored on the memory, where the processor executes the computer instruction, and executes the steps of the random access method according to fig. 1 to 4.

A terminal in this embodiment may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station (mobile station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal equipment), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device or other processing devices connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment of the present application.

The embodiment of the present invention further provides a base station, where computer instructions are stored on the base station, and the memory stores computer instructions capable of being executed on the processor, and when the processor executes the computer instructions, the steps of the random access method as shown in fig. 6 to 9 are executed.

A Base Station (BS) in the embodiment of the present application, which may also be referred to as a base station device, is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, the device providing the base station function in the 2G network includes a Base Transceiver Station (BTS), the device providing the base station function in the 3G network includes a node B (nodeb), the device providing the base station function in the 4G network includes an evolved node B (eNB), the device providing the base station function in the Wireless Local Area Network (WLAN) is an Access Point (AP), the device providing the base station function in the 5G New Radio (NR) is a gbb (eNB) providing the base station function, and the node B (ng-eNB) continues to evolve, where the gbb and the terminal communicate with each other by using an NR technique, the ng-eNB and the terminal communicate with each other by using an E-utra (evolved Universal Radio access) technique, and both the gbb and the ng-eNB may be connected to the 5G core network. The base station in the embodiment of the present application also includes a device and the like that provide a function of the base station in a future new communication system.

The base station controller in the embodiment of the present application is a device for managing a base station, for example, a Base Station Controller (BSC) in a 2G network, a Radio Network Controller (RNC) in a 3G network, or a device for controlling and managing a base station in a future new communication system.

The network on the network side in the embodiment of the present invention refers to a communication network providing communication services for a terminal, and includes a base station of a radio access network, a base station controller of the radio access network, and a device on the core network side.

In the embodiment of the application, a unidirectional communication link from an access network to a terminal is defined as a downlink, data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; the unidirectional communication link from the terminal to the access network is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is referred to as an uplink direction.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.

The "plurality" appearing in the embodiments of the present application means two or more.

The descriptions of the first, second, etc. appearing in the embodiments of the present application are only for illustrating and differentiating the objects, and do not represent the order or the particular limitation of the number of the devices in the embodiments of the present application, and do not constitute any limitation to the embodiments of the present application.

The term "connect" in the embodiments of the present application refers to various connection manners, such as direct connection or indirect connection, to implement communication between devices, which is not limited in this embodiment of the present application.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire or wirelessly. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more collections of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

In the several embodiments provided in the present application, it should be understood that the disclosed method, apparatus and system may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative; for example, the division of the unit is only a logic function division, and there may be another division manner in actual implementation; for example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A random access method, comprising the steps of:

receiving configuration information, wherein the configuration information is used for indicating a mapping relation between random access resources and channel quality indication parameters, and the channel quality indication parameters are used for indicating the channel quality of an uplink channel and/or a downlink channel;

determining a channel quality indication parameter;

and determining random access resources according to the channel quality indication parameters and the configuration information, and sending a leader sequence according to the random access resources.

2. The random access method of claim 1,

the random access resources include one or more of: preamble sequences, random access time domain resources, and random access frequency domain resources.

3. The random access method according to claim 1, wherein the random access method is used for contention random access;

the random access method further comprises:

determining uplink transmission resources according to the uplink authorization information;

sending uplink scheduling transmission by using the uplink transmission resource;

a contention resolution indication is received.

4. The random access method of claim 3, wherein the channel quality indication parameter comprises PH or MCS;

and the uplink transmission resource is determined by the base station according to the PH or MCS.

5. The random access method of claim 1, wherein the random access resource is the preamble sequence;

determining a random access resource according to the channel quality indication parameter and the configuration information, and sending a preamble sequence according to the random access resource comprises:

determining a corresponding leader sequence according to the value of the channel quality indication parameter and the configuration information;

and transmitting the corresponding leader sequence.

6. The random access method according to claim 1, wherein the random access resource is the random access time domain resource and/or the random access frequency domain resource;

determining corresponding random access time domain resources and/or random access frequency domain resources according to the value of the channel quality indication parameter and the configuration information;

and sending the leader sequence on the corresponding random access time domain resource and/or random access frequency domain resource.

7. The random access method of claim 1, wherein the random access resource is the preamble sequence and the random access time domain resource;

determining corresponding random access time domain resources and a leader sequence according to the value of the channel quality indication parameter and the configuration information;

transmitting the preamble sequence on the corresponding random access time domain resource;

alternatively, the first and second electrodes may be,

the random access resource is the leader sequence and the random access frequency domain resource;

determining corresponding random access frequency domain resources and a leader sequence according to the value of the channel quality indication parameter and the configuration information;

and sending the leader sequence on the corresponding random access frequency domain resource.

8. The random access method according to claim 1, wherein the random access resource is the preamble sequence, the random access time domain resource and the random access frequency domain resource;

determining corresponding random access time domain resources, random access frequency domain resources and a leader sequence according to the value of the channel quality indication parameter and the configuration information;

and sending the leader sequence on the corresponding random access time domain resource and the random access frequency domain resource.

9. The random access method of claim 1, wherein the channel quality indication parameter is selected from the group consisting of: CQI, PH, CQI and PH, MCS.

10. A random access method, comprising the steps of:

configuring and sending configuration information, wherein the configuration information is used for indicating a mapping relation between random access resources and channel quality indication parameters, and the channel quality indication parameters are used for indicating the channel quality of an uplink channel and/or a downlink channel;

and receiving a leader sequence, wherein the leader sequence is sent by the terminal according to random access resources, and the random access resources are determined according to the channel quality indication parameters and the configuration information.

11. The random access method of claim 10,

12. The random access method of claim 10, further comprising:

and determining uplink transmission resources according to the leader sequence and configuring a random access response message, wherein uplink authorization information in the random access response message is determined according to the uplink transmission resources.

13. The random access method of claim 12, wherein the cqi parameter comprises PH or MCS;

14. The random access method of claim 12, wherein the random access resource is the preamble sequence;

determining uplink transmission resources according to the preamble sequence and configuring a random access response message includes:

determining the value of the channel quality indication parameter according to the preamble sequence and the configuration information;

determining the uplink transmission resource according to the value of the channel quality indication parameter;

adopting the uplink transmission resource to form uplink authorization information in the random access response message;

configuring the random access response message.

15. The random access method according to claim 12, wherein the random access resource is the random access time domain resource and/or the random access frequency domain resource;

determining the value of the channel quality indication parameter according to the random access time domain resource and/or the random access frequency domain resource where the leader sequence is located and the configuration information;

configuring the random access response message.

16. The random access method of claim 12, wherein the random access resource is the preamble sequence and the random access time domain resource;

determining the value of the channel quality indication parameter according to the leader sequence, the random access time domain resource where the leader sequence is located and the configuration information;

determining the uplink transmission resource and a leader sequence according to the value of the channel quality indication parameter;

configuring the random access response message;

alternatively, the first and second electrodes may be,

the random access resource is the leader sequence, the random access frequency domain resource and the leader sequence;

determining the value of the channel quality indication parameter according to the leader sequence, the random access frequency domain resource where the leader sequence is located and the configuration information;

configuring the random access response message.

17. The random access method of claim 12, wherein the random access resource is the preamble sequence, the random access time domain resource, and a random access frequency domain resource;

determining the value of the channel quality indication parameter according to the leader sequence, the random access time domain resource and the random access frequency domain resource where the leader sequence is located and the configuration information;

configuring the random access response message.

18. The random access method according to claim 12, wherein the random access method is used for contention random access;

the random access method further comprises:

receiving an uplink scheduling transmission on the uplink transmission resource;

and sending the competition resolving identification.

19. The random access method according to claim 10, wherein the channel quality indication parameter is selected from the group consisting of: CQI, PH, CQI and PH, MCS.

20. The random access method of claim 10, wherein the channel quality indication parameter comprises CQI or MCS;

the method further comprises the following steps:

determining downlink transmission resources according to the CQI or the MCS, wherein the downlink transmission resources are used for bearing the random access response message;

and sending the random access response message by adopting the downlink transmission resource.

21. A random access apparatus, comprising:

an information receiving module, adapted to receive configuration information, where the configuration information is used to indicate a mapping relationship between a random access resource and a channel quality indication parameter, and the channel quality indication parameter is used to indicate channel quality of an uplink channel and/or a downlink channel;

an indication parameter determination module adapted to determine a channel quality indication parameter;

and the leading sequence sending module is suitable for determining random access resources according to the channel quality indication parameters and the configuration information and sending leading sequences according to the random access resources.

22. A random access apparatus, comprising:

an information sending module, adapted to configure and send configuration information, where the configuration information is used to indicate a mapping relationship between a random access resource and a channel quality indication parameter, and the channel quality indication parameter is used to indicate channel quality of an uplink channel and/or a downlink channel;

a preamble sequence receiving module, adapted to receive a preamble sequence, where the preamble sequence is sent by a terminal according to a random access resource, and the random access resource is determined according to a channel quality indication parameter and the configuration information.

23. A storage medium having stored thereon computer instructions, wherein the computer instructions are operable to perform the steps of the random access method of any one of claims 1 to 9 or to perform the steps of the random access method of any one of claims 10 to 20.

24. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the random access method of any one of claims 1 to 9.

25. A base station comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the random access method of any one of claims 10 to 20.