CN110012539B - Resource indication method and base station - Google Patents
Resource indication method and base station Download PDFInfo
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- CN110012539B CN110012539B CN201810010257.3A CN201810010257A CN110012539B CN 110012539 B CN110012539 B CN 110012539B CN 201810010257 A CN201810010257 A CN 201810010257A CN 110012539 B CN110012539 B CN 110012539B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The invention provides a resource indication method and a base station, wherein the method comprises the following steps: configuring a target bandwidth part for a terminal, wherein the target bandwidth part can be used for transmitting a message 3 in a random access process; sending the internal resource allocation information of the target bandwidth part to a terminal; the embodiment of the invention realizes the resource allocation indication of the message 3 by a two-step resource allocation indication mode, wherein the first step is to indicate a target bandwidth part to the terminal, and the target bandwidth part is a bandwidth part which can be used for transmitting the message 3; the second step is to indicate the internal resource allocation information of the target bandwidth part, so that the terminal can determine the uplink resource of the message 3 according to the target bandwidth part and the internal resource allocation information of the target bandwidth part, thereby meeting the resource indication requirement of the message 3 when the bandwidth of the terminal is smaller than the system bandwidth and providing a basis for 5G air interface design.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a resource indication method and a base station.
Background
In LTE (long term evolution) systems, for contention-based random access, the entire procedure involves 4 steps:
step 1: the terminal transmits a random access preamble.
The base station eNodeB sends RACH-ConfigCommon (random access channel configuration information) through broadcast SIB2 (system message block 2), informs the terminal of the packet of preamble, the threshold value of Msg3 size, power configuration, and other information, and sends prach-configmex (physical random access channel configuration index) and prach-frequency offset (physical random access channel frequency offset) through broadcast SIB2, thereby determining the set of time-frequency resources that the cell can use to transmit preamble. When the terminal initiates random access, according to the possible Msg3 size, path loss, and the like, a proper preamble index is selected, and a physical random access channel PRACH resource (possibly designated by the base station) is selected from the time-frequency resource set to send the preamble. Because the base station does not know on which time-frequency resource the terminal will send the preamble, the preamble will be detected and received on all the preamble time-frequency resources indicated.
Step 2: the base station transmits a random access response (Random Access Response).
The time-frequency position of the Preamble determines the value of a random access radio network temporary identifier RA-RNTI (RA-RNTI is used to indicate the resource block used by the user to send the random access Preamble), and after the terminal sends the Preamble, the terminal listens to the corresponding physical downlink control channel PDCCH according to the RA-RNTI value in the random access response time window to receive the random access response of the corresponding RA-RNTI (at this time, the measurement interval measurement gap which may occur is not considered). If the random access response time window does not receive the random access response replied by the base station, the random access process is considered to fail. When the terminal successfully receives a random access response (decoded by using the RA-RNTI described above) and the preamble index in the random access response is the same as the preamble index sent by the terminal, the terminal considers that the random access response is successfully received, and can stop monitoring the random access response.
As can be seen from the structure of the RAR MAC PDU (random access response MAC layer protocol data unit), if a terminal detects random access requests from multiple terminals on the same physical random access channel PRACH resource, it can respond to these access requests using one RAR MAC PDU, and the response of each random access request (corresponding to one preamble index) corresponds to one random access response RAR. If multiple terminals send preambles on the same PARCH resource (same time-frequency location, same RA-RNTI is used), the corresponding RARs are multiplexed in the same RAR MAC PDU.
Specifically, 11-bit Timing advance command (time advance command field) is used to specify the amount of time adjustment required for uplink synchronization of the terminal. A 20-bit UL grant (uplink scheduling grant) specifies uplink resources allocated to Msg3. When there is an uplink data transmission, for example, the conflict needs to be resolved, and the uplink scheduling grant allocated by the base station in the random access response cannot be smaller than 56 bits.
Step 3: the terminal sends Msg3.
Msg3 is transmitted on UL-SCH (uplink shared channel), hybrid automatic repeat request HARQ is used, and the transport block TB size for Msg3 specified by the uplink scheduling grant carried in the random access response is at least 80 bits. The terminal will have a terminal identity (e.g. temporary mobile subscriber identity S-TMSI or a random number) at Msg3 carrying its own unique identity, e.g. C-RNTI (Cell Radio Network Temporary Identifier, cell radio network temporary identity) or from the core network.
Step 4: the base station transmits collision resolution (contention resolution).
The base station will carry the unique flag in Msg4 in the collision resolution mechanism to specify the winning terminal. While other terminals that are not winning in the collision resolution will re-initiate random access.
In the design of 5G NR (air interface), the working bandwidth of the supporting user is different from the bandwidth of the network, i.e. the supporting user accesses the network with a working bandwidth smaller than the network bandwidth.
After the terminal realizes downlink synchronization, a system broadcast message is obtained, in 5G NR, the system information is carried in the remaining minimum system message (Remaining minimum system information, RMSI), and the terminal can obtain subcarrier interval configuration of Msg3 according to random access channel configuration (RACH configuration) in RMSI, so how to perform resource indication for Msg3 is a problem to be solved.
Disclosure of Invention
The invention aims to provide a resource indication method and a base station, which are used for solving the problem that a terminal cannot determine the resource allocation mode of own Msg3 when the bandwidth of the terminal is smaller than the system bandwidth in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a resource indication method, including:
configuring a target bandwidth part for a terminal, wherein the target bandwidth part can be used for transmitting a message 3 in a random access process;
and sending the internal resource allocation information of the target bandwidth part to the terminal.
Wherein the step of configuring the target bandwidth portion of the message 3 usable for transmitting the random access procedure for the terminal comprises:
configuring a first bandwidth part for all available physical random access channel time-frequency resources, and configuring the first bandwidth part as a target bandwidth part which can be used for transmitting a message 3; or alternatively, the process may be performed,
a second bandwidth part is configured for each available physical random access channel time-frequency resource, and each second bandwidth part is configured as a target bandwidth part which can be used for transmitting the message 3.
After the step of configuring the target bandwidth portion of the message 3 for the terminal in the random access procedure, the resource indication method further includes:
transmitting the configuration information of the target bandwidth part to a terminal through a residual minimum system message (RMSI); wherein the configuration information of the target bandwidth portion includes: the bandwidth of the target bandwidth portion, the center frequency location of the target bandwidth portion, and the subcarrier spacing of the target bandwidth portion.
Wherein the step of configuring the target bandwidth portion of the message 3 usable for transmitting the random access procedure for the terminal comprises:
each random access response message contained in the available physical random access channel time-frequency resource is respectively configured with a third bandwidth part, and each third bandwidth part is configured as a target bandwidth part which can be used for transmitting the message 3.
After the step of configuring the target bandwidth portion of the message 3 for the terminal in the random access procedure, the resource indication method further includes:
transmitting configuration information of a third bandwidth part corresponding to the random access response message to the terminal through the random access response message; wherein the configuration information of the third bandwidth part includes: the bandwidth of the third bandwidth portion, the center frequency location of the third bandwidth portion, and the subcarrier spacing of the third bandwidth portion.
Wherein the step of configuring the target bandwidth portion of the message 3 usable for transmitting the random access procedure for the terminal comprises:
configuring a bandwidth portion occupied by a target physical random access channel as a target bandwidth portion available for transmission of message 3; wherein the target physical random access channel is a physical random access channel of which the terminal transmits a random access preamble.
Wherein the internal resource allocation information of the target bandwidth portion includes:
indication of whether to hop, the size of the transport block used to transmit message 3, and the type of resource allocation for the target bandwidth portion.
The step of sending the internal resource allocation information of the target bandwidth part to the terminal includes:
and sending the internal resource allocation information of the target bandwidth part to the terminal through a random access response message.
The embodiment of the invention also provides a base station, which comprises a processor and a transceiver, wherein the processor is used for executing the following processes:
configuring a terminal with a target bandwidth portion available for transmitting message 3 in a random access procedure
The transceiver is configured to perform the following:
and sending the internal resource allocation information of the target bandwidth part to the terminal.
Wherein the processor is further configured to:
configuring a first bandwidth part for all available physical random access channel time-frequency resources, and configuring the first bandwidth part as a target bandwidth part which can be used for transmitting a message 3; or alternatively, the process may be performed,
a second bandwidth part is configured for each available physical random access channel time-frequency resource, and each second bandwidth part is configured as a target bandwidth part which can be used for transmitting the message 3.
Wherein the transceiver is further configured to:
transmitting the configuration information of the target bandwidth part to a terminal through a residual minimum system message (RMSI); wherein the configuration information of the target bandwidth portion includes: the bandwidth of the target bandwidth portion, the center frequency location of the target bandwidth portion, and the subcarrier spacing of the target bandwidth portion.
Wherein the processor is further configured to:
each random access response message contained in the available physical random access channel time-frequency resource is respectively configured with a third bandwidth part, and each third bandwidth part is configured as a target bandwidth part which can be used for transmitting the message 3.
Wherein the transceiver is further configured to:
transmitting configuration information of a third bandwidth part corresponding to the random access response message to the terminal through the random access response message; wherein the configuration information of the third bandwidth part includes: the bandwidth of the third bandwidth portion, the center frequency location of the third bandwidth portion, and the subcarrier spacing of the third bandwidth portion.
Wherein the processor is further configured to:
configuring a bandwidth portion occupied by a target physical random access channel as a target bandwidth portion available for transmission of message 3; wherein the target physical random access channel is a physical random access channel of which the terminal transmits a random access preamble.
Wherein the internal resource allocation information of the target bandwidth portion includes:
indication of whether to hop, the size of the transport block used to transmit message 3, and the type of resource allocation for the target bandwidth portion.
Wherein the transceiver is further configured to:
and sending the internal resource allocation information of the target bandwidth part to the terminal through a random access response message.
The embodiment of the invention also provides a base station, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the resource indication method when executing the program.
The embodiment of the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps in the resource indication method as described above.
The technical scheme of the invention has at least the following beneficial effects:
in the resource indication method and the base station of the embodiment of the invention, the resource allocation indication of the message 3 is realized by a two-step resource allocation indication mode, wherein the first step is to indicate a target bandwidth part to the terminal, and the target bandwidth part is a bandwidth part which can be used for transmitting the message 3; the second step is to indicate the internal resource allocation information of the target bandwidth part, so that the terminal can determine the uplink resource of the message 3 according to the target bandwidth part and the internal resource allocation information of the target bandwidth part, thereby meeting the resource indication requirement of the message 3 when the bandwidth of the terminal is smaller than the system bandwidth and providing a basis for 5G air interface design.
Drawings
FIG. 1 is a flowchart showing steps of a resource indication method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a first mode of configuring a target bandwidth portion in a resource indication method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a second mode of configuring a target bandwidth portion in the resource indication method according to the embodiment of the present invention;
fig. 4 is a schematic diagram of a third mode of configuring a target bandwidth portion in the resource indication method according to the embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a base station according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides a resource indication method, including:
and step 12, sending the internal resource allocation information of the target bandwidth part to the terminal.
The resource indication method provided by the embodiment of the invention is generally applied to the scene that the terminal bandwidth is smaller than the system bandwidth, and provides basis for 5G NR design. In the above embodiment of the present invention, after receiving the random access response (message 2, also referred to as Msg 2) from the base station, the terminal sends an uplink message according to the uplink resource allocated by the base station, where the uplink message is referred to as message 3, also referred to as Msg3. The bandwidth part is called bandwidth part and is simply called BWP.
In the above embodiment of the present invention, for the transmission of Msg3, the indication of the resource allocation of Msg3 is implemented according to a two-step resource allocation manner; the first step is to configure (or indicate) a target BWP, and the second step is to indicate the resource allocation within the target BWP, and the terminal determines its own resource allocation method of Msg3 based on the two-step indication of the base station.
Preferably, the above embodiment of the present invention provides 4 ways of configuring the target bandwidth portion, specifically as follows:
mode one of configuring the target bandwidth portion:
Specifically, as shown in fig. 2, a first bandwidth part is configured for all PRACH time-frequency resources of the physical random access channel, where the all available PRACH time-frequency resources specifically refer to all PRACH time-frequency resources that can be used for transmitting the random access response RAR. The first bandwidth part is common BWP (common bandwidth part), and corresponds to different preamble indexes, one preamble index corresponds to one random access request.
Mode two of configuring the target bandwidth portion:
Specifically, as shown in fig. 3, a second bandwidth portion is configured for each physical random access channel PRACH time-frequency resource, where each of the available PRACH time-frequency resources specifically refers to each PRACH time-frequency resource that may be used to transmit a random access response RAR. Wherein, since one PRACH time-frequency resource includes a plurality of RARs, the second bandwidth part is also common BWP (common bandwidth part), and the second bandwidth part also corresponds to different preamble indexes (random access preamble indexes), and one preamble index corresponds to one random access request.
It should be noted that the second bandwidth portions are different from the first bandwidth portions, and each second bandwidth portion corresponds to a different RAR of the same PRACH time-frequency resource, and the first bandwidth portion corresponds to a different RAR of a different PRACH time-frequency resource.
After the above example is received and the target bandwidth portion is configured in the first or second mode, the resource indication method further includes:
transmitting the configuration information of the target bandwidth part to a terminal through a residual minimum system message (RMSI); wherein the configuration information of the target bandwidth portion includes: the bandwidth of the target bandwidth portion, the center frequency location of the target bandwidth portion, and the subcarrier spacing of the target bandwidth portion.
In the above embodiment of the present invention, when different terminals send random access requests (i.e., random access preamble) on the same PRACH resource, their random access response RARs can be multiplexed in the same RAR PDU. One RAR PDU corresponds to one PRACH time-frequency resource, so that the first bandwidth part in the first mode or the second bandwidth part in the second mode can be aimed at different terminals, and therefore, the configuration information of the first bandwidth part or the configuration information of the second bandwidth part needs to be broadcasted through the remaining minimum system message RMSI, so that a plurality of terminals can acquire the configuration information of the first bandwidth part or the configuration information of the second bandwidth part through the system broadcast message.
Preferably, the configuration information of the first bandwidth part includes: the bandwidth of the first bandwidth portion, the center frequency location of the first bandwidth portion, and the subcarrier spacing of the first bandwidth portion. The configuration information of the second bandwidth part includes: the bandwidth of the second bandwidth part, the center frequency position of the second bandwidth part, and the subcarrier spacing of the second bandwidth part.
In the above example, the third mode of configuring the target bandwidth portion is:
Specifically, as shown in fig. 4, each random access response RAR designates a third bandwidth portion of the corresponding message 3. The above-mentioned available PRACH time-frequency resources of the physical random access channel specifically refer to PRACH time-frequency resources that can be used for transmitting the random access response RAR. Since the third bandwidth part is for each random access response RAR, one third bandwidth part corresponds to one preamble index (random access preamble index), i.e. one third bandwidth part corresponds to one random access request.
After the above-mentioned method three pairs of target bandwidth portions are configured, the resource indication method further includes:
transmitting configuration information of a third bandwidth part corresponding to the random access response message to the terminal through the random access response message; wherein the configuration information of the third bandwidth part includes: the bandwidth of the third bandwidth portion, the center frequency location of the third bandwidth portion, and the subcarrier spacing of the third bandwidth portion.
In the above embodiment of the present invention, since the third bandwidth part is for each random access response RAR, one third bandwidth part is for one terminal, so that the configuration of the third bandwidth part can be directly sent to the terminal through the RAR message, and other terminals do not need to receive the configuration information of the bandwidth part of the non-own terminal, so that the power consumption of the terminal can be reduced.
In the above example, the fourth mode of configuring the target bandwidth portion is:
configuring a bandwidth portion occupied by a target physical random access channel as a target bandwidth portion available for transmission of message 3; wherein the target physical random access channel is a physical random access channel of which the terminal transmits a random access preamble.
Specifically, in the above embodiment of the present invention, msg3 adopts BWP occupied by a target physical random access channel by default, where the target physical random access channel is a physical random access channel PRACH for transmitting a preamble for a terminal. Because the terminal already knows the information of the PRACH when sending the preamble, the terminal can know the configuration information of the bandwidth part occupied by the target PRACH, such as the bandwidth of the bandwidth part occupied by the target PRACH, the center frequency position, the subcarrier interval and the like; therefore, the base station does not need to send the configuration information of the bandwidth part occupied by the target PRACH to the terminal again, thereby saving the power consumption of the base station and the terminal.
Preferably, the internal resource allocation information of the target bandwidth portion includes:
indication of whether to hop, the size of the transport block used to transmit message 3, and the type of resource allocation for the target bandwidth portion.
Accordingly, step 12 includes:
and sending the internal resource allocation information of the target bandwidth part to the terminal through a random access response message.
In the above embodiment of the present invention, no matter in any one or more of the first, second, third and fourth modes, the target bandwidth portion of the message 3 is configured for the terminal, and the internal resource allocation information of the target bandwidth portion is sent through the random access response RAR message. I.e. the internal resource allocation information of the target bandwidth portion is indicated by the RAR message, including whether to hop, transport block TB size, and resource allocation type, etc. It should be noted that, at least, the uplink resource allocation type 0 needs to be supported by the resource allocation type in the target bandwidth portion.
In summary, the above embodiments of the present invention provide an indication method for a target bandwidth portion of Msg3 and internal resource allocation of the target bandwidth portion; specifically, the resource allocation indication of the message 3 is realized by a two-step resource allocation indication mode, wherein the first step is to indicate a target bandwidth part to the terminal, and the target bandwidth part is a bandwidth part available for transmitting the message 3; the second step is to indicate the internal resource allocation information of the target bandwidth part, so that the terminal can determine the uplink resource of the message 3 according to the target bandwidth part and the internal resource allocation information of the target bandwidth part, thereby meeting the resource indication requirement of the message 3 when the bandwidth of the terminal is smaller than the system bandwidth, providing a basis for 5G air interface design, and meeting the resource indication requirement of 5G NR to Msg3.
As shown in fig. 5, the embodiment of the present invention further provides a base station, including a processor 500 and a transceiver 510, where the processor 500 is configured to perform the following procedures:
configuring a terminal with a target bandwidth portion available for transmitting message 3 in a random access procedure
The transceiver 510 is configured to perform the following procedures:
and sending the internal resource allocation information of the target bandwidth part to the terminal.
Preferably, the processor 500 in the above embodiment of the present invention is further configured to:
configuring a first bandwidth part for all available physical random access channel time-frequency resources, and configuring the first bandwidth part as a target bandwidth part which can be used for transmitting a message 3; or alternatively, the process may be performed,
a second bandwidth part is configured for each available physical random access channel time-frequency resource, and each second bandwidth part is configured as a target bandwidth part which can be used for transmitting the message 3.
Preferably, the transceiver 510 in the above embodiment of the present invention is further configured to:
transmitting the configuration information of the target bandwidth part to a terminal through a residual minimum system message (RMSI); wherein the configuration information of the target bandwidth portion includes: the bandwidth of the target bandwidth portion, the center frequency location of the target bandwidth portion, and the subcarrier spacing of the target bandwidth portion.
Preferably, the processor 500 in the above embodiment of the present invention is further configured to:
each random access response message contained in the available physical random access channel time-frequency resource is respectively configured with a third bandwidth part, and each third bandwidth part is configured as a target bandwidth part which can be used for transmitting the message 3.
Preferably, the transceiver 510 in the above embodiment of the present invention is further configured to:
transmitting configuration information of a third bandwidth part corresponding to the random access response message to the terminal through the random access response message; wherein the configuration information of the third bandwidth part includes: the bandwidth of the third bandwidth portion, the center frequency location of the third bandwidth portion, and the subcarrier spacing of the third bandwidth portion.
Preferably, the processor 500 in the above embodiment of the present invention is further configured to:
configuring a bandwidth portion occupied by a target physical random access channel as a target bandwidth portion available for transmission of message 3; wherein the target physical random access channel is a physical random access channel of which the terminal transmits a random access preamble.
Preferably, the internal resource allocation information of the target bandwidth portion in the above embodiment of the present invention includes:
indication of whether to hop, the size of the transport block used to transmit message 3, and the type of resource allocation for the target bandwidth portion.
Preferably, the transceiver 510 in the above embodiment of the present invention is further configured to:
and sending the internal resource allocation information of the target bandwidth part to the terminal through a random access response message.
In summary, the above embodiments of the present invention provide an indication method for a target bandwidth portion of Msg3 and internal resource allocation of the target bandwidth portion; specifically, the resource allocation indication of the message 3 is realized by a two-step resource allocation indication mode, wherein the first step is to indicate a target bandwidth part to the terminal, and the target bandwidth part is a bandwidth part available for transmitting the message 3; the second step is to indicate the internal resource allocation information of the target bandwidth part, so that the terminal can determine the uplink resource of the message 3 according to the target bandwidth part and the internal resource allocation information of the target bandwidth part, thereby meeting the resource indication requirement of the message 3 when the bandwidth of the terminal is smaller than the system bandwidth, providing a basis for 5G air interface design, and meeting the resource indication requirement of 5G NR to Msg3.
It should be noted that, the base station provided in the embodiment of the present invention is a base station capable of executing the above-mentioned resource indication method, and all embodiments of the above-mentioned resource indication method are applicable to the base station, and the same or similar beneficial effects can be achieved.
The embodiment of the invention also provides a base station, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes each process in the resource indication method embodiment as described above when executing the program, and can achieve the same technical effect, and the repetition is avoided, and the description is omitted here.
The embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, where the program when executed by a processor implements each process in the embodiment of the resource indication method described above, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, magnetic disk storage and optical storage, etc.) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block or blocks.
These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (16)
1. A method for indicating resources, comprising:
configuring a target bandwidth part for a terminal, wherein the target bandwidth part can be used for transmitting a message 3 in a random access process;
sending the internal resource allocation information of the target bandwidth part to a terminal;
the internal resource allocation information of the target bandwidth portion includes:
indication of whether to hop, the size of the transport block used to transmit message 3, and the type of resource allocation for the target bandwidth portion.
2. The resource indication method according to claim 1, characterized in that said step of configuring the terminal with a target bandwidth portion available for transmission of message 3 in a random access procedure comprises:
configuring a first bandwidth part for all available physical random access channel time-frequency resources, and configuring the first bandwidth part as a target bandwidth part which can be used for transmitting a message 3; or alternatively, the process may be performed,
a second bandwidth part is configured for each available physical random access channel time-frequency resource, and each second bandwidth part is configured as a target bandwidth part which can be used for transmitting the message 3.
3. The resource indication method according to claim 2, wherein after the step of configuring the target bandwidth portion of the message 3 available for transmission in the random access procedure for the terminal, the resource indication method further comprises:
transmitting the configuration information of the target bandwidth part to a terminal through a residual minimum system message (RMSI); wherein the configuration information of the target bandwidth portion includes: the bandwidth of the target bandwidth portion, the center frequency location of the target bandwidth portion, and the subcarrier spacing of the target bandwidth portion.
4. The resource indication method according to claim 1, characterized in that said step of configuring the terminal with a target bandwidth portion available for transmission of message 3 in a random access procedure comprises:
each random access response message contained in the available physical random access channel time-frequency resource is respectively configured with a third bandwidth part, and each third bandwidth part is configured as a target bandwidth part which can be used for transmitting the message 3.
5. The method according to claim 4, wherein after the step of configuring the target bandwidth portion of the message 3 available for transmission in the random access procedure for the terminal, the method further comprises:
transmitting configuration information of a third bandwidth part corresponding to the random access response message to the terminal through the random access response message; wherein the configuration information of the third bandwidth part includes: the bandwidth of the third bandwidth portion, the center frequency location of the third bandwidth portion, and the subcarrier spacing of the third bandwidth portion.
6. The resource indication method according to claim 1, characterized in that said step of configuring the terminal with a target bandwidth portion available for transmission of message 3 in a random access procedure comprises:
configuring a bandwidth portion occupied by a target physical random access channel as a target bandwidth portion available for transmission of message 3; wherein the target physical random access channel is a physical random access channel of which the terminal transmits a random access preamble.
7. The resource indication method of claim 1, wherein the step of transmitting the internal resource allocation information of the target bandwidth part to the terminal comprises:
and sending the internal resource allocation information of the target bandwidth part to the terminal through a random access response message.
8. A base station comprising a processor and a transceiver, wherein the processor is configured to perform the following:
configuring a terminal with a target bandwidth portion available for transmitting message 3 in a random access procedure
The transceiver is configured to perform the following:
sending the internal resource allocation information of the target bandwidth part to a terminal;
the internal resource allocation information of the target bandwidth portion includes:
indication of whether to hop, the size of the transport block used to transmit message 3, and the type of resource allocation for the target bandwidth portion.
9. The base station of claim 8, wherein the processor is further configured to:
configuring a first bandwidth part for all available physical random access channel time-frequency resources, and configuring the first bandwidth part as a target bandwidth part which can be used for transmitting a message 3; or alternatively, the process may be performed,
a second bandwidth part is configured for each available physical random access channel time-frequency resource, and each second bandwidth part is configured as a target bandwidth part which can be used for transmitting the message 3.
10. The base station of claim 9, wherein the transceiver is further configured to:
transmitting the configuration information of the target bandwidth part to a terminal through a residual minimum system message (RMSI); wherein the configuration information of the target bandwidth portion includes: the bandwidth of the target bandwidth portion, the center frequency location of the target bandwidth portion, and the subcarrier spacing of the target bandwidth portion.
11. The base station of claim 8, wherein the processor is further configured to:
each random access response message contained in the available physical random access channel time-frequency resource is respectively configured with a third bandwidth part, and each third bandwidth part is configured as a target bandwidth part which can be used for transmitting the message 3.
12. The base station of claim 11, wherein the transceiver is further configured to:
transmitting configuration information of a third bandwidth part corresponding to the random access response message to the terminal through the random access response message; wherein the configuration information of the third bandwidth part includes: the bandwidth of the third bandwidth portion, the center frequency location of the third bandwidth portion, and the subcarrier spacing of the third bandwidth portion.
13. The base station of claim 8, wherein the processor is further configured to:
configuring a bandwidth portion occupied by a target physical random access channel as a target bandwidth portion available for transmission of message 3; wherein the target physical random access channel is a physical random access channel of which the terminal transmits a random access preamble.
14. The base station of claim 8, wherein the transceiver is further configured to:
and sending the internal resource allocation information of the target bandwidth part to the terminal through a random access response message.
15. A base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the resource indication method according to any of claims 1-7, characterized in that the processor implements the resource indication method when executing the program.
16. A computer readable storage medium having stored thereon a computer program, which when executed by a processor performs the steps in the resource indication method as claimed in any of claims 1-7.
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