CN109413739B - Resource allocation method and device in enhanced machine type communication (eMTC) - Google Patents

Resource allocation method and device in enhanced machine type communication (eMTC) Download PDF

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CN109413739B
CN109413739B CN201710696057.3A CN201710696057A CN109413739B CN 109413739 B CN109413739 B CN 109413739B CN 201710696057 A CN201710696057 A CN 201710696057A CN 109413739 B CN109413739 B CN 109413739B
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resource
subframe
srs
pucch
time domain
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CN109413739A (en
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任东坡
陈耕雨
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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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
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

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  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a resource allocation method and a device in enhanced machine type communication (eMTC), wherein the method comprises the following steps: receiving an uplink resource allocation request of an eMTC user terminal; the uplink resource allocation request comprises an SRS resource allocation request and a PUCCH resource allocation request; searching a preset SRS time domain resource linked list according to the uplink resource allocation request, and determining a first subframe with idle resources in the SRS time domain resource linked list as SRS starting resources of the eMTC user terminal; according to the configured SRS sending period and the sending period of the PUCCH resource, in a preset time domain resource chain table of the PUCCH resource, starting from the next two subframes of the first subframe, searching for a subframe with idle resource, and determining the searched subframe as the starting resource of the PUCCH resource. The embodiment of the invention provides a resource allocation method suitable for an eMTC user terminal aiming at an eMTC network, and avoids time domain conflict of uplink resources of the eMTC user terminal during allocation.

Description

Resource allocation method and device in enhanced machine type communication (eMTC)
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a resource allocation method and device in enhanced machine type communication (eMTC).
Background
In long term evolution LTE, a sounding reference signal SRS is used to estimate uplink channel quality, a physical uplink control channel PUCCH is used to transmit synchronized Uplink Control Information (UCI), and the uplink control information transmitted on the PUCCH mainly includes a scheduling request SR, channel quality indicator CQI information periodically reported by a user equipment UE, and the like. The SRS/CQI/SR resources may collide with each other in time, and if the transmission times collide with each other, some information may be discarded, so that it is necessary to avoid this situation as much as possible.
In the implementation of the existing LTE Legacy resource allocation algorithm (corresponding to the LTE network), there has been a study on related algorithms, and in the existing Legacy algorithm, SRS resources and PUCCH resources are allocated based on an overall plan advance reservation, and resources are reserved in a cell unit. When a cell is established and SRS/CQI/SR resources are initialized, each resource is initialized according to the period of each resource configuration. And the UE allocates corresponding resources in the specified reserved resource region according to the specified sequence. The SRS/CQI/SR resource is stored in a hash table storage management mode, each hash node is a time domain resource index (which can be obtained through an available subframe number in a sub-frame ratio of a cell on a periodic mode), a collision chain (a chain table of resources on a frequency domain and a code domain corresponding to the time domain resource index) on each hash node is all available resources calculated according to the frequency domain, the code domain and the like, and the condition of idle resources under the collision chain is stored on the hash node, so that the subsequent comparison and search are facilitated. The basic principle of the Legacy algorithm is as follows:
1) and taking the SRS as an anchor point, and preferentially ensuring the sending of the SRS of the terminal. Once the SRS collides, the base station has no other remedial measures, and the SRS affects not only the quality of the uplink channel obtained by the base station, but also the downlink forming information obtained by the base station. On the contrary, if the CQI collision causes a situation that the transmission cannot be performed, the base station may use an aperiodic CQI reporting mode to obtain the downlink channel information.
2) SRS/CQI/SR is as close as possible in the time domain. The SRS is in front of the CQI in the time domain, and the SR is in the same subframe with the SRS or not in the same subframe with the CQI after the SRS.
3) The resource items allocated first in the SRS/CQI/SR are guaranteed to be uniform in the time domain as much as possible. This is for subsequent other resources to be allocated according to the time domain approaching principle to reach the approach of the time domain positions of various resources of the user, if the first allocated resource cannot be allocated uniformly, and other resources are allocated according to the time domain approaching principle, there is also a great probability that the time domain positions cannot be approached due to insufficient single subframe resources.
The basic flow of the Legacy algorithm is as follows:
1. first dividing SRS resources
The basic idea is that the SRS is evenly distributed in the time domain. Currently, various resources are stored in a time-sharing domain, so that the corresponding number of idle resources is stored at the head of a time domain resource chain, and the time domain resource chain with the largest number of idle resources is searched in a time domain sequence for allocation.
2. Re-dividing CQI resources
The CQI resource requirement is behind the SRS resource and close to the SRS resource time domain as much as possible, so the CQI resource is divided intoWhen the time is allocated, the available resources are searched from the next uplink subframe (subframe in the CQI time domain resource linked list) of the uplink subframe where the SRS is positioned. When the CQI period is less than or equal to the SRS period, that is, the SRS transmission period is greater than or equal to the CQI transmission period, as shown in fig. 1, the SRS period TsrsFor CQI period NPTwice of that, one available resource is sequentially allocated in a time domain resource chain of the CQI according to a time domain sequence and in a time domain position of a CQI period after the time domain position allocated by the SRS; when the CQI period is greater than the SRS period, as shown in FIG. 2, the CQI period NPIs SRS period TsrsTwice of that, in the CQI time domain resource linked list, cyclic search is performed according to the period of the SRS, and for each SRS period in the CQI period, one available resource is sequentially allocated in the SRS period time domain position after the SRS-allocated time domain position.
3. Subdividing SR resources
SR resource requirements are as close as possible to the SRS time domain position but can not be the same as the CQI, if the SRS is in a normal subframe and the transmission indication is TRUE with the ACK, the first available idle resources are searched in sequence from the time domain resource of the subframe where the SRS of the user is located, otherwise, the first available idle resources are searched in sequence from the time domain resource of the next subframe of the subframe where the SRS of the user is located.
When the SR period is less than or equal to the SRS period, as shown in FIG. 3, the SRS period TsrsIs SR periodperiodicityTwice of that of the method, only one available resource which is not in the same subframe with the CQI needs to be sequentially allocated in SR periodic time domain positions after the time domain position allocated by the SRS; when the SR period is greater than the SRS period, as shown in FIG. 4, the SR period SRperiodicityIs the period T of SRSsrsAnd for each SRS period in the SR period, sequentially allocating an available resource which is not in the same subframe as the CQI in the SRS period after the time domain position allocated by the SRS in the time domain positions of the SRS period. Specifically, when there is only one time domain position of the SR resource, it is sufficient to directly allocate regardless of whether the subframe is identical to the CQI.
The existing scheme is an uplink resource allocation scheme for LTE users, concepts such as repeated transmission of resources are introduced into enhanced machine type communication (eMTC), all resources are changed, and the original LTE scheme is not suitable for eMTC users any more.
Disclosure of Invention
The embodiment of the invention provides a resource allocation method and device in enhanced machine type communication (eMTC), which are used for providing an uplink resource allocation method suitable for the eMTC and solving the problem that an uplink resource allocation scheme in the existing Long Term Evolution (LTE) is not suitable for the eMTC.
The embodiment of the invention provides a method for allocating SRS resources and PUCCH resources in eMTC, which comprises the following steps:
receiving an uplink resource allocation request of an eMTC user terminal; the uplink resource allocation request comprises an uplink channel quality estimation parameter SRS resource allocation request and a physical uplink control channel PUCCH resource allocation request;
searching a preset SRS time domain resource linked list according to the uplink resource allocation request, and determining a first subframe with idle resources in the SRS time domain resource linked list as SRS starting resources of the eMTC user terminal; the SRS time domain resource linked list is a resource table used for storing subframes which can be used as SRS resources;
according to the configured SRS sending period and the sending period of the PUCCH resource, searching a subframe with idle resources from the next two subframes of the first subframe in a preset time domain resource chain table of the PUCCH resource, and determining the searched subframe as the starting resource of the PUCCH resource; and the time domain resource linked list of the PUCCH resources is a resource table used for storing subframes which can be used as the PUCCH resources.
An embodiment of the present invention provides an apparatus for allocating SRS resources and PUCCH resources in eMTC, including:
a resource allocation request acquisition module, configured to receive an uplink resource allocation request of an eMTC user terminal; the uplink resource allocation request comprises an uplink channel quality estimation parameter SRS resource allocation request and a physical uplink control channel PUCCH resource allocation request;
an SRS resource allocation module, configured to search a preset SRS time domain resource linked list according to the uplink resource allocation request, and determine a first subframe having idle resources in the SRS time domain resource linked list as an SRS initial resource of the eMTC user terminal; the SRS time domain resource linked list is a resource table used for storing subframes which can be used as SRS resources;
a PUCCH resource allocation module, configured to search, in a preset time domain resource chain table of the PUCCH resource, a subframe having idle resources from the next two subframes of the first subframe according to a configured SRS transmission period and a transmission period of the PUCCH resource, and determine the searched subframe as an initial resource of the PUCCH resource; and the time domain resource linked list of the PUCCH resources is a resource table used for storing subframes which can be used as the PUCCH resources.
The embodiment of the invention provides a base station, which comprises a processor, a memory and a communication bus, wherein the processor and the memory are connected through the communication bus, the memory stores a computer program which is executed by the processor to realize the method of the embodiment of the invention, and the processor executes the computer program stored in the memory.
An embodiment of the present invention provides a storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method according to the embodiment of the present invention is implemented.
The embodiment of the invention provides a resource allocation method and a device in enhanced machine type communication (eMTC), which are applied to an eMTC user terminal and provided by the embodiment of the invention, so that time domain conflict of uplink resources of the eMTC user terminal during allocation is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of CQI resource allocation when a CQI period is less than or equal to an SRS period in the prior art;
FIG. 2 is a diagram illustrating CQI resource allocation when a CQI period is greater than an SRS period in the prior art;
FIG. 3 is a diagram illustrating CQI resource allocation when an SR period is less than or equal to an SRS period in the prior art;
FIG. 4 is a diagram illustrating CQI resource allocation when an SR period is greater than an SRS period in the prior art;
fig. 5 is a flowchart of an embodiment of a method for allocating SRS resources and PUCCH resources in eMTC according to the present invention;
fig. 6 is a flowchart of an embodiment of a method for allocating SRS resources in an eMTC according to the present invention;
fig. 7 is a flowchart of an embodiment of a method for allocating CQI resources in eMTC according to the present invention;
fig. 8 is a flowchart of an embodiment of a method for allocating SR resources in an eMTC according to the present invention;
fig. 9 is a schematic structural diagram of an embodiment of an apparatus for allocating SRS resources and PUCCH resources in eMTC according to the present invention;
fig. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 5 shows a flowchart of a method for allocating SRS resources and PUCCH resources in an eMTC according to an embodiment of the present invention, and as can be seen from the diagram, the method for allocating SRS resources and PUCCH resources mainly includes the following steps:
step S1: receiving an uplink resource allocation request of an eMTC user terminal; the request comprises an SRS resource allocation request and a PUCCH resource allocation request;
step S2: searching a preset SRS time domain resource linked list according to the uplink resource allocation request, and determining a first subframe with idle resources in the SRS time domain resource linked list as SRS starting resources of the eMTC user terminal;
step S3: according to the configured SRS sending period and the sending period of the PUCCH resource, in a preset time domain resource chain table of the PUCCH resource, starting from the next two subframes of the first subframe, searching for a subframe with idle resource, and determining the searched subframe as the starting resource of the PUCCH resource.
In the embodiment of the invention, when a base station receives an uplink resource allocation request (including a Sounding Reference Signal (SRS) resource allocation request and a Physical Uplink Control Channel (PUCCH) resource allocation request) of an eMTC user terminal, the base station completes the allocation initialization of uplink resources for the eMTC user terminal. Firstly, the base station can complete the allocation of SRS resources for the eMTC user terminal and complete the initialization of the SRS resources, and as the SRS in the eMTC protocol is not repeatedly transmitted, the SRS resource allocation mode in the existing LTE can be multiplexed, namely, the base station searches a first subframe with idle resources in a preset SRS time domain resource chain table, determines the searched first subframe as the SRS starting resource (namely, the initial subframe used for SRS uploading) of the eMTC user terminal, and then determines the subframe where the SRS resources are located according to the position of the first subframe and the SRS transmission period preset by the base station. And after the initialization of the SRS resource is completed, the base station allocates the starting resource of the PUCCH resource to the eMTC user terminal again, and the initialization of the PUCCH resource is completed. The SRS time domain resource chain table is a resource table used for storing subframes which can be used as SRS resources.
In practical application, if the first subframe with idle resources is not searched in the SRS time domain resource linked list, it indicates that SRS resource allocation fails, and the base station sends SRS resource allocation failure information to the eMTC user terminal, and the base station fails to allocate uplink resources to the user terminal.
In the embodiment of the present invention, the meaning of the idle resource means that there are unoccupied resource elements (different numbers of resource elements RE to be occupied by different upload information) that meet the upload transmission requirements of SRS upload or PUCCH upload (CQI upload, SR upload, etc.) in the physical resource corresponding to one subframe.
eMTC specifies that SRS is not transmitted if SRS is transmitted in n subframes and physical uplink shared channel PUSCH/physical uplink control channel PUCCH is transmitted in n or n +1 subframes, and that SRS is not transmitted if SRS and PUSCH/PUCCH are not completely in the same narrowband. In the embodiment of the present invention, in order to avoid this situation, when the base station allocates the starting resource of the PUCCH resource to the eMTC user terminal, according to the SRS transmission period pre-configured by the base station and the transmission period of the PUCCH resource, in the preset time domain resource chain table of the PUCCH resource, a subframe having an idle resource is searched from the next two subframes of the first subframe, and the searched subframe is determined as the starting resource of the PUCCH resource, that is, it is assumed that the SRS is transmitted in n subframes, the search is started from n +2 subframes, and the n +2 subframes are also included. Since the time domain resource of the PUCCH resource is searched in the next two subframes of the subframe where the SRS resource is located, the condition that the SRS is sent in the subframe n and the PUCCH is sent in the subframe n or n +1 is avoided, and the condition that the SRS is not sent in the eMTC is avoided. And the time domain resource linked list of the PUCCH resources is a resource table used for storing subframes which can be used as the PUCCH resources.
In the embodiment of the present invention, the eMTC user terminal may be a user terminal of a ModeA user, because for the ModeA user, CQI and SRS reporting exists, and a user terminal of a ModeB user does not exist.
The scheme provided by the embodiment of the invention provides an uplink resource allocation scheme suitable for an eMTC user terminal, avoids time domain conflict of uplink resources of the eMTC user terminal during allocation, meets the requirement of practical application, is compatible with an LTE resource allocation algorithm, and does not influence the resource allocation of the LTE user terminal.
In practical application, when receiving an access request of an eMTC network of an eMTC user terminal, a base station defaults to receive an uplink resource allocation request of the eMTC user terminal, and allocates uplink resources for the terminal to complete uplink resource allocation initialization.
In this embodiment of the present invention, the determining a first subframe having idle resources in an SRS time domain resource linked list as the SRS initial resource of the eMTC user terminal includes:
and determining the first subframe with the most idle resources in the SRS time domain resource chain table as the SRS starting resource.
That is, the subframe with the most idle resources in the SRS time domain resource linked list is preferably used as the first subframe, where the subframe with the most idle resources means that the number of unoccupied Resource Elements (REs) corresponding to the subframe is the most.
Fig. 6 shows a schematic flow chart of SRS resource allocation performed by the base station in the embodiment of the present invention, as shown in the figure, the base station first searches for the SRS time domain resource linked list for allocation, searches for the SRS time domain resource linked list according to a time sequence, searches for a subframe with the most remaining resources, that is, the most idle resources, if the subframe is found, allocates the subframe with the most remaining resources as an SRS starting resource, and if the subframe with the remaining resources is not found in the SRS time domain resource linked list, it indicates that the SRS resource allocation fails.
In the embodiment of the invention, the PUCCH resource allocation request comprises a Channel Quality Indication (CQI) resource allocation request or a Scheduling Request (SR) resource allocation request. That is, in the embodiment of the present invention, the allocation of the PUCCH resource includes allocation of SR resources or allocation of CQI resources, when the PUCCH resource allocation request is a CQI resource allocation request, the transmission cycle of the PUCCH resource is a CQI transmission cycle, the time domain resource linked list of the PUCCH resource is a CQI time domain resource linked list, and the starting resource of the PUCCH resource is a starting resource of the CQI resource; the CQI time domain resource chain table is a resource table used for storing subframes which can be used as the CQI resources; when the PUCCH resource allocation request is an SR resource allocation request, the sending cycle of the PUCCH resource is an SR sending cycle, the time domain resource linked list of the PUCCH resource is an SR time domain resource linked list, and the initial resource of the PUCCH resource is an initial resource of the SR resource; the SR time domain resource linked list is a resource table used to store subframes that can be used as the SR resources.
Correspondingly, when the PUCCH resource allocation request is the CQI resource allocation request, in step S3, according to the configured SRS transmission period and the transmission period of the PUCCH resource, in a preset time domain resource chain table of the PUCCH resource, starting from the next two subframes of the first subframe, a subframe having an idle resource is searched, the searched subframe is determined as the starting resource of the PUCCH resource, that is, according to the configured SRS transmission period and the CQI transmission period, in the preset CQI time domain resource chain table, the subframe having an idle resource is searched from the next two subframes of the first subframe, and the searched subframe is determined as the starting resource of the CQI resource.
When the PUCCH resource allocation request is an SR resource allocation request, in step S3, according to the configured SRs transmission cycle and the transmission cycle of the PUCCH resource, in a preset time domain resource chain table of the PUCCH resource, a subframe having an idle resource is searched from the next two subframes of the first subframe, the searched subframe is determined as the starting resource of the PUCCH resource, that is, according to the configured SRs transmission cycle and the SR transmission cycle, in the preset SR time domain resource chain table, the subframe having an idle resource is searched from the next two subframes of the first subframe, and the searched subframe is determined as the starting resource of the SR resource.
In the embodiment of the invention, the uplink resource allocation request comprises an SRS resource allocation request, a CQI resource allocation request and an SR resource allocation request, and after receiving a network access request of an eMTC user terminal, a base station can automatically complete the allocation of the SRS resource, the CQI resource and the SR resource of the user terminal.
In the embodiment of the present invention, according to the configured SRS transmission period and the transmission period of the PUCCH resource, in a preset time domain resource chain table of the PUCCH resource, starting from the next two subframes of the first subframe, a subframe having an idle resource is searched, and the searched subframe is determined as an initial resource of the PUCCH resource, including:
if the SRS sending period is larger than or equal to the sending period of the PUCCH resource, traversing from the next two subframes of the first subframe to the next m subframes of the first subframe in a preset time domain resource chain table of the PUCCH resource, finding a second subframe with idle resources, and determining the second subframe as the initial resource of the PUCCH resource; the m is equal to the value of the transmission period of the PUCCH resource; the time domain resource linked list of the PUCCH resources is a resource table used for storing subframes which can be used as the PUCCH resources;
if the SRS sending period is smaller than the sending period of the PUCCH resource, searching a third subframe with idle resources in a time domain resource linked list of the PUCCH resource from the next two subframes of the first subframe to the next m subframes of the first subframe, namely in a range of [ the first subframe +2, the first subframe + the PUCCH resource sending period value ], and determining the third subframe as the starting resource of the PUCCH resource; and the third subframe does not comprise a subframe where the SRS resource is located and a next subframe where the SRS is located.
In the embodiment of the invention, different initial resource allocation modes of PUCCH resources are provided according to different conditions of the SRS sending period and the PUCCH resource sending period which are configured in advance by the base station. If the SRS transmission period is smaller than the transmission period of the PUCCH resource, it indicates that there may be multiple subframes where SRS resources are located in one transmission period of the PUCCH resource at this time, that is, there may be multiple subframes used as SRS upload in a subframe within one transmission period range of the PUCCH resource, at this time, starting from the next two subframes of the subframe where each SRS resource is located to the last subframe of the subframe where the next SRS resource is located one by one, and as long as one idle available time domain position (subframe) is found, the time domain position of the starting resource of the PUCCH resource is selected, instead of finding multiple idle positions according to the remaining SRS points and selecting the subframe with the largest available resource as in the conventional LTE processing. The subframe where the SRS resource is located in the subframe where the SRS resource is located and the subframe where the SRS resource is located in the next subframe of the subframe where the SRS resource is located comprise the subframe corresponding to the starting resource of the SRS and the subframe where the next SRS resource of the subframe corresponding to the starting subframe is located. In the embodiment of the invention, the sending period of the PUCCH resource is more than 2 ms.
For example, for CQI, if there are two subframes serving as SRS resources in one CQI transmission period, first starting to search for a subframe between a first subframe and a second subframe (excluding the subframe where the second SRS resource is located) using the next two subframes of the subframe where the first SRS resource is located as a starting point, if a subframe with idle resources is found therein, then using the subframe as the starting resource of the CQI, and if not, then using the next two subframes of the subframe where the second SRS resource is located as a starting point, and searching for a subframe with idle resources in the subframe ranging from the starting point to the next m subframes of the first subframe.
In the embodiment of the present invention, the allocation method further includes: initializing a time domain resource linked list of the PUCCH resources; the initializing a time domain resource linked list of the PUCCH resources includes:
initializing available initial subframes in each sending period of the PUCCH resources by taking the configured retransmission times of the PUCCH resources as intervals, wherein the number of the available initial subframes in each sending period is the quotient of the numerical value of the sending period and the retransmission times, and the first available initial subframe in each sending period is the first subframe in the corresponding period; the repeated transmission times of the PUCCH resources are less than or equal to the value of the transmission period of the PUCCH resources;
wherein the second subframe or the third subframe is a subframe having idle resources in the available starting subframe.
Because the concept of CQI/SR repeat transmission is introduced into the eMTC, aiming at the characteristics of repeat transmission, when a cell is activated, a base station needs to limit the repeat transmission times and the transmission period.
In the embodiment of the present invention, for the concept of repetitive transmission in the eMTC, in order to reduce the situation of checking the resource availability on a repetitive subframe when CQI/SR resources are actually allocated, in the embodiment of the present invention, before uplink resources are allocated, initialization of a time domain resource linked list of the PUCCH resources is performed first, specifically, initialization of an available subframe in each transmission cycle is completed with the interval of the number of retransmission times, i.e., the number of repetitive transmission times, of the PUCCH resources configured in advance, that is, an available starting subframe in each transmission cycle is configured in advance, so that when CQI/SR resources are allocated, an available starting subframe with idle resources can be directly searched for as a second subframe or a third subframe in the configured available starting subframe, without traversing all subframes in all cycles.
Wherein the available starting subframe is for one transmission period, wherein the starting subframe refers to a subframe for a first transmission for a number of retransmissions per transmission. For example, for a configuration that a CQI period is 40ms and 8 retransmissions are required, 8 consecutive subframes (subframes for specifying retransmission in eMTC must be consecutive subframes) need to be allocated for each CQI upload, and a first subframe of the 8 consecutive subframes is a starting subframe of the 8 consecutive subframes.
In the embodiment of the invention, for the initialization of the CQI time domain resource linked list: a transmission period of N for CQIpAnd CQI repetition number is NRepDue to the need to be in one transmission cycle N during initializationpInner repeat transmission NRepTherefore, each time CQI is transmitted, N consecutive N need to be occupied when CQI resource allocation subframe is allocatedRepSub-frame, therefore, the sub-frame that can actually be the starting sub-frame of a retransmission in each CQI transmission period has Np/NRepThe minimum interval between adjacent available subframes is the retransmission times, so that the initialization of the subframe which can be used as the starting subframe in each CQI period can be completed by taking the retransmission times as the interval. A transmission period of N for CQIpAnd CQI repetition number is NRepIn terms of the configuration of (1), i.e., 0 th, NRep、2*NRep、…、(Np/NRep-1) × NRep subframes are subframes that can be the starting subframes within one transmission period. Wherein, the 0 th subframe is the first subframe in one CQI sending period.
The inventionIn the embodiment, for the initialization of the SR time domain resource linked list: for SR period of NSRNumber of SR repetitions is NRepSROnly N in each SR cycleSR/NRepSROne usable subframe, i.e. 0, NRepSR、2*NRepSR、…、(NSR/NRepSR-1) NRep subframes.
In this embodiment of the present invention, if the second subframe or the third subframe is not found, the method further includes:
and searching the time domain resource linked list of the PUCCH resources, and determining the available sub-frame with the most idle resources in the time domain resource linked list of the PUCCH resources as the starting resource of the PUCCH resources.
In this embodiment, when the base station does not search for the second subframe or the third subframe that meets the requirement, an available subframe with the most idle resources is selected as the starting subframe of the PUCCH resource in the time domain resource linked list of the corresponding PUCCH resource. And if no subframe with idle resources exists in the time domain resource linked list of the PUCCH resources, indicating that the resource allocation of the PUCCH resources fails.
Fig. 7 is a schematic flow chart illustrating CQI resource allocation performed by a base station in an embodiment of the present invention, that is, a schematic flow chart illustrating allocation of CQI resources when a PUCCH resource allocation request is a CQI resource allocation request, where as shown in the diagram, for allocation of CQI resources, the base station first determines a CQI transmission period NpWhether it is greater than SRS Transmission period TsrsIf the number is not larger than the predetermined number, the base station starts traversing from the position of srseOffset +2, which is the next two subframes of the first subframe (srsOffset in the figure) corresponding to the SRS start resource (the subframe of srsOffset +2 is included), and in the time domain resources of srsOffset +2 to srsOffset + CQI (the value of the CQI transmission period), the base station starts traversing at [ srsOffset +2, srsOffset + CQI]And searching the sub-frames with idle resources in time domain resources in the range according to the time sequence, if the sub-frames are found, directly allocating the found sub-frames as the CQI resources, and if the sub-frames are not found, searching the sub-frames with the most idle resources in a CQI time domain resource chain table as the sub-frames corresponding to the CQI resources. If CQI Transmission period NpGreater than the SRS Transmission period TsrsAt this time canFirst, setting a cyclic variable i, setting the initialized value of i to 0, first, judging whether i is less than or equal to the quotient of the CQI transmission period and the SRS transmission period-1 (the quotient of the CQI transmission period and the SRS transmission period indicates that several SRS transmission periods completely fall within the CQI transmission period), if so, then from SrsOffset +2 to SrsOffset + SRS (the value of the SRS transmission period), that is, [ SrsOffset +2, SrsOffset + SRS]If the available starting subframe is not found in the subframe range from SrsOffset +2 to SrsOffset + SRS (the numerical value of the SRS sending period), i is executed to be i +1, and if the available starting subframe is not found in the subframe range from SrsOffset +2 to SrsOffset + SRS, i is executed to be i +1, and the available starting subframe is searched for to be free from the resource by Tsrs+2 to SrsOffset + i × TsrsSearching for an available starting subframe having free resources within a subframe range of + SRS (SRS transmission period), repeating the operation of i +1, and repeating the operation of SrsOffset + i × Tsrs+2 to SrsOffset + i × Tsrs+ SRS (value of SRS transmission period) (srseffset + i × Tsrs+ SRS is less than or equal to SrsOffset + SR sending period), until finding an available starting subframe with idle resources or until i is greater than the quotient-1, and if i is greater than the quotient-1, finding a subframe with the most idle resources in a CQI time domain resource chain table as a subframe corresponding to the CQI resource. If all the schemes are adopted and the subframes meeting the requirements are found, the CQI resource allocation is failed.
Fig. 8 is a flowchart illustrating SR resource allocation performed by a base station in the embodiment of the present invention, that is, when a PUCCH resource allocation request is an SR resource allocation request, the flowchart illustrating SR resource allocation is performed, and similar to the CQI resource allocation process illustrated in fig. 7, the base station first determines whether an SR transmission period is greater than an SRs transmission period TsrsIf the SRS start resource is not larger than the SRS start resource, the base station starts traversing from the position of SrsOffset +2 which is the next two subframes of the first subframe (SrsOffset in the figure) corresponding to the SRS start resource, and then goes through SrsOffset +2 to SrsOffset + SR (SR transmission cycle)Value of period) of the time domain resource, two subframes, srseffset +2 and srseffset + SR, are included, i.e. the range is [ srseffset +2, srseffset + SR]) And searching the subframes with idle resources according to the time sequence, if the subframes with idle resources are found, directly allocating the found subframes as the SR resources, and if the subframes are not found, searching the subframe with the most idle resources in an SR time domain resource linked list as the subframe corresponding to the SR resources. If the SR transmission period is longer than the SRs transmission period, a cyclic variable i may be set, the initialized value of i is 0, first, it is determined whether i is less than or equal to the quotient-1 of the SR transmission period and the SRs transmission period, and if so, the subframe range from srseffset +2 to srseffset + SRs (the value of SRs transmission period) (i.e., [ srseffset +2, srseffset + SRs)]Within range), if the available starting subframe with the free resource is found, the found available starting subframe is allocated as the starting subframe of the SR resource, a plurality of continuous subframes (the number is the SR retransmission times) taking the available starting subframe as the starting point are the subframes occupied by the SR resource to finish one-time repeated uploading, if the available starting subframe with the free resource is not found in the subframe range of SrsOffset +2 to SrsOffset + SRS (the value of the SRS sending period), i is executed to i +1, and if the available starting subframe with the free resource is not found in the SrsOffset + i multiplied by T, the starting subframe with the free resource is executed to the position of I +1srs+2 to SrsOffset + i × TsrsSearching for an available starting subframe having free resources within a subframe range of + SRS (SRS transmission period), repeating the operation of i +1, and repeating the operation of SrsOffset + i × Tsrs+2 to SrsOffset + i × TsrsAnd searching the available starting subframe with the idle resource in the subframe range of + SRS (SRS sending period value) until the available starting subframe with the idle resource is found or until i is greater than the quotient, and searching the subframe with the most idle resources in an SR time domain resource chain table as the subframe corresponding to the SR resource if i is greater than the quotient-1. If all the schemes are adopted and the subframes meeting the requirements are found, the SR resource allocation failure is indicated.
In the embodiment of the invention, in the content of the related calculation quotient, the quotient values are all integer numbers. As mentioned above, the number of the available starting subframes in each transmission period is the quotient of the value of the transmission period and the retransmission times, where the quotient is the integer value of the result of dividing the value of the transmission period by the retransmission times, and for example, the quotient in the quotient-1 of the determination of whether i is less than or equal to the quotient of the CQI transmission period and the SRS transmission period is also the integer value of the calculation result of dividing the CQI transmission period by the SRS transmission period.
In the embodiment of the present invention, the allocation method further includes:
dividing the uplink subframe available for the SRS in the configured uplink resource in a time domain according to the type of the user terminal; the types of the user terminals comprise an LTE user terminal and an eMTC user terminal.
Dividing uplink subframes available for the SRS in the uplink resources in a time domain, wherein the time domain comprises the following steps:
numbering subframes in an SRS available uplink subframe set, reserving odd subframes in the set for an LTE user terminal, and reserving even subframes in the set for an eMTC user terminal;
and the subframes which can be used as SRS resources in the SRS time domain resource linked list are the subframes reserved for the eMTC user terminal.
Because uplink resource allocation schemes applied under eMTC and LTE are different, the configuration of an SRS usable uplink subframe (an uplink subframe which is configured by a base station and can be used for SRS transmission) needs to isolate an LTE user and an eMTC user in a time domain. By separating and dividing the uplink subframes available for the SRS, the uplink subframes available for the SRS of the LTE user terminal and the eMTC user terminal are determined, and the occurrence of resource allocation disorder during user access is avoided.
For example, in an embodiment of the present invention, taking the default SRS subframe configuration SC0 as an example (10 uplink subframes in one system frame may all transmit SRS), the set of available uplink subframes for the legacy LTE ue is {1,3,5,7,9}, and the set of available uplink subframes for the eMTC ue is {2,4,6,8,10 }.
In order to ensure the success rate of network access of LTE users and eMTC users, in the embodiment of the present invention, the number of uplink subframes available as SRS in a radio frame is at least 2, that is, at least one subframe used as SRS resource can be allocated to both an LTE user terminal and an eMTC user terminal.
In the embodiment of the present invention, the difference between the allocation method and the resource allocation scheme in the existing LTE is that the location relationship between the SR and the CQI resource is not considered any more, because in the eMTC, after the SR and the CQI introduce a mechanism of the repetition number, it is considered that the SR of one user terminal completely covers the CQI of the user terminal in the time domain, and the implementation complexity is certain, and even if this occurs, the SR does not occur in every period, and the impact is not too large.
An embodiment of the present invention further provides an apparatus for allocating SRS resources and PUCCH resources in an eMTC, and as shown in fig. 9, the apparatus may include a resource allocation request obtaining module 10, an SRS resource allocating module 20, and a PUCCH resource allocating module 30.
A resource allocation request obtaining module 10, configured to receive an uplink resource allocation request of an eMTC user terminal; the uplink resource allocation request comprises an uplink channel quality estimation parameter SRS resource allocation request and a physical uplink control channel PUCCH resource allocation request;
an SRS resource allocation module 20, configured to search a preset SRS time domain resource linked list according to the uplink resource allocation request, and determine a first subframe having idle resources in the SRS time domain resource linked list as an SRS starting resource of the eMTC user terminal; the SRS time domain resource linked list is a resource table used for storing subframes which can be used as SRS resources;
a PUCCH resource allocation module 30, configured to search, in a preset time domain resource chain table of the PUCCH resource, a subframe having an idle resource from the next two subframes of the first subframe according to the configured SRS transmission period and the transmission period of the PUCCH resource, and determine the searched subframe as an initial resource of the PUCCH resource; and the time domain resource linked list of the PUCCH resources is a resource table used for storing subframes which can be used as the PUCCH resources.
In the embodiment of the present invention, the allocating apparatus is disposed in a base station, and when a resource allocation request obtaining module 10 of the base station receives an uplink resource allocation request of an eMTC user terminal, the base station completes allocation of SRS resources and allocation of PUCCH resources through the SRS resource allocating module 20 and the PUCCH resource allocating module 30, respectively. In the embodiment of the present invention, for specific function implementation of each module in the allocation apparatus, reference is made to the description of the allocation method in the embodiment of the present invention, and details are not described herein again.
In the embodiment of the invention, the PUCCH resource allocation request comprises a Channel Quality Indication (CQI) resource allocation request or a Scheduling Request (SR) resource allocation request; when the PUCCH resource allocation request is a CQI resource allocation request, the sending period of the PUCCH resource is a CQI sending period, the time domain resource linked list of the PUCCH resource is a CQI time domain resource linked list, and the initial resource of the PUCCH resource is the initial resource of the CQI resource; the CQI time domain resource chain table is a resource table used for storing subframes which can be used as the CQI resources;
when the PUCCH resource allocation request is an SR resource allocation request, the sending cycle of the PUCCH resource is an SR sending cycle, the time domain resource linked list of the PUCCH resource is an SR time domain resource linked list, and the initial resource of the PUCCH resource is an initial resource of the SR resource; the SR time domain resource linked list is a resource table used to store subframes that can be used as the SR resources.
In this embodiment of the present invention, the PUCCH resource allocation module 30 includes a first resource allocation unit and a second resource allocation unit.
The first resource allocation unit is configured to, if the SRS transmission period is greater than or equal to the transmission period of the PUCCH resource, traverse to the next m subframes of the first subframe from the next two subframes of the first subframe in a preset time domain resource linked list of the PUCCH resource, find a second subframe with idle resources, and determine the second subframe as the starting resource of the PUCCH resource; the m is equal to the value of the transmission period of the PUCCH resource; the time domain resource linked list of the PUCCH resources is a resource table used for storing subframes which can be used as the PUCCH resources;
the second resource allocation unit is configured to, if the SRS transmission period is smaller than the transmission period of the PUCCH resource, search, in a time domain resource linked list of the PUCCH resource, a third subframe having idle resources in a range from a next two subframes of the first subframe to a next m subframes of the first subframe, and determine the third subframe as a starting resource of the PUCCH resource; and the third subframe does not comprise a subframe where the SRS resource is located and a next subframe of the subframe where the SRS resource is located.
In this embodiment of the present invention, the PUCCH resource allocation module 30 completes allocation of the PUCCH resource by the first resource allocation unit or the second resource allocation unit according to a size relationship between a pre-configured SRS transmission period and a transmission period of the PUCCH resource, and determines a subframe corresponding to an initial resource of the PUCCH resource. In the embodiment of the present invention, for specific function implementation of the first resource allocation unit and the second resource allocation unit, reference is made to description in the allocation method in the embodiment of the present invention, and details are not described here again.
In the embodiment of the present invention, the allocation apparatus may further include a resource linked list initialization module.
A resource linked list initialization module, configured to initialize a time domain resource linked list of the PUCCH resource; the module is specifically configured to initialize available starting subframes in each transmission cycle of the PUCCH resources at intervals of the configured retransmission times of the PUCCH resources, where the number of the available starting subframes in each transmission cycle is a quotient of a value of the transmission cycle of the PUCCH resources and the retransmission times of the PUCCH resources, and a first available starting subframe in each transmission cycle is a first subframe in a corresponding cycle;
the second subframe or the third subframe is a subframe with idle resources in the available starting subframe.
In the embodiment of the invention, aiming at the concept of repeated transmission of CQI/SR resources introduced in eMTC, a resource linked list initialization module initializes the time domain resource linked list of PUCCH resources, so that the check on the availability of subframes for repeated transmission during the actual distribution of the CQI/SR resources is reduced, and the resource distribution efficiency is improved. The specific function implementation of the resource linked list initialization module refers to the description in the allocation method in the embodiment of the present invention, and is not described herein again.
In this embodiment of the present invention, the allocation apparatus further includes a PUCCH resource reallocation module.
And the PUCCH resource reallocation module is used for searching the time domain resource linked list of the PUCCH resources when the second subframe or the third subframe is not found, and determining the available subframe with the most idle resources in the time domain resource linked list of the PUCCH resources as the starting resource of the PUCCH resources.
In the embodiment of the present invention, the SRS resource allocating module 20 is specifically configured to determine a first subframe having the most idle resources in an SRS time domain resource linked list as the SRS starting resource.
In the embodiment of the present invention, the allocation apparatus further includes an uplink resource dividing module.
An uplink resource dividing module, configured to divide, in a time domain, an SRS available uplink subframe in configured uplink resources according to a type of a user terminal; the types of the user terminals comprise an LTE user terminal and an eMTC user terminal.
In the embodiment of the present invention, the uplink resource partitioning module is specifically configured to number subframes in an SRS available uplink subframe set, reserve odd subframes in the set to an LTE user terminal, and reserve even subframes in the set to an eMTC user terminal.
And the subframes which can be used as SRS resources in the SRS time domain resource linked list are the subframes reserved for the eMTC user terminal.
In the embodiment of the invention, the usable SRS uplink subframes of the LTE user terminal and the eMTC user terminal are separated and divided, so that the usable SRS uplink subframes of the LTE user terminal and the usable SRS available uplink subframes of the eMTC user terminal are clear, and the occurrence of resource allocation disorder during user access is avoided. For specific function implementation of the uplink resource partitioning module, reference is made to the description in the allocation method in the embodiment of the present invention, and details are not described here again.
In the embodiment of the invention, the number of the uplink subframes available as the SRS in one radio frame is at least 2.
In an embodiment of the present invention, as shown in fig. 10, the base station includes a processor 110, a memory 120, and a communication bus 130, where the processor 110 and the memory 120 are connected through the communication bus 130, the memory 120 stores a computer program that is executed by the processor to implement the allocation method according to any one of the embodiments of the present invention, and the processor 110 executes the computer program stored in the memory.
The embodiment of the present invention further provides a storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the method in any one of the embodiments of the present invention is implemented.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (16)

1. A method for allocating Sounding Reference Signal (SRS) resources and Physical Uplink Control Channel (PUCCH) resources in enhanced machine type communication (eMTC), the method comprising:
receiving an uplink resource allocation request of an eMTC user terminal; the uplink resource allocation request comprises an uplink channel quality estimation parameter SRS resource allocation request and a physical uplink control channel PUCCH resource allocation request;
searching a preset SRS time domain resource linked list according to the uplink resource allocation request, and determining a first subframe with idle resources in the SRS time domain resource linked list as SRS starting resources of the eMTC user terminal; the SRS time domain resource linked list is a resource table used for storing subframes which can be used as SRS resources;
according to the configured SRS sending period and the sending period of the PUCCH resource, searching a subframe with idle resources from the next two subframes of the first subframe in a preset time domain resource chain table of the PUCCH resource, and determining the searched subframe as the starting resource of the PUCCH resource; and the time domain resource linked list of the PUCCH resources is a resource table used for storing subframes which can be used as the PUCCH resources.
2. The method of claim 1, wherein the PUCCH resource allocation request comprises a channel quality indication, CQI, resource allocation request or a scheduling request, SR, resource allocation request;
when the PUCCH resource allocation request is a CQI resource allocation request, the sending period of the PUCCH resource is a CQI sending period, the time domain resource linked list of the PUCCH resource is a CQI time domain resource linked list, and the initial resource of the PUCCH resource is the initial resource of the CQI resource; the CQI time domain resource chain table is a resource table used for storing subframes which can be used as the CQI resources;
when the PUCCH resource allocation request is an SR resource allocation request, the sending cycle of the PUCCH resource is an SR sending cycle, the time domain resource linked list of the PUCCH resource is an SR time domain resource linked list, and the initial resource of the PUCCH resource is an initial resource of the SR resource; the SR time domain resource linked list is a resource table used to store subframes that can be used as the SR resources.
3. The method according to claim 1, wherein the searching, according to the configured SRS transmission period and the configured PUCCH resource transmission period, for a subframe having an idle resource from the next two subframes of the first subframe in a preset time domain resource chain table of the PUCCH resource, and determining the searched subframe as a starting resource of the PUCCH resource, comprises:
if the SRS sending period is larger than or equal to the sending period of the PUCCH resource, traversing from the next two subframes of the first subframe to the next m subframes of the first subframe in a time domain resource chain table of the PUCCH resource, finding a second subframe with idle resources, and determining the second subframe as the starting resource of the PUCCH resource; the m is equal to the value of the transmission period of the PUCCH resource;
if the SRS sending period is smaller than the sending period of the PUCCH resource, searching a third subframe with idle resources in a time domain resource linked list of the PUCCH resource from the next two subframes of the first subframe to the next m subframes of the first subframe, and determining the third subframe as the starting resource of the PUCCH resource; the third subframe does not comprise the subframe where the SRS resource is located and a subframe next to the subframe where the SRS resource is located.
4. The method of claim 1, further comprising: initializing a time domain resource linked list of the PUCCH resources; the initializing a time domain resource linked list of the PUCCH resources includes:
initializing available initial subframes in each sending period of the PUCCH resources by taking the configured retransmission times of the PUCCH resources as intervals, wherein the number of the available initial subframes in each sending period is the quotient of the numerical value of the sending period and the retransmission times, and the first available initial subframe in each sending period is the first subframe in the corresponding period; the retransmission times are less than or equal to the value of the transmission period of the PUCCH resources;
the second subframe or the third subframe is a subframe with idle resources in the available starting subframe.
5. The method according to claim 3 or 4, wherein if the second subframe or the third subframe is not found, the method further comprises:
and searching the time domain resource linked list of the PUCCH resources, and determining the available sub-frame with the most idle resources in the time domain resource linked list of the PUCCH resources as the starting resource of the PUCCH resources.
6. The method of claim 1, further comprising:
dividing the uplink subframe available for the SRS in the configured uplink resource in a time domain according to the type of the user terminal; the types of the user terminals comprise a Long Term Evolution (LTE) user terminal and an eMTC user terminal;
dividing uplink subframes available for the SRS in the uplink resources in a time domain, wherein the time domain comprises the following steps:
numbering subframes in an SRS available uplink subframe set, reserving odd subframes in the set for an LTE user terminal, and reserving even subframes in the set for an eMTC user terminal;
and the subframe which can be used as the SRS resource in the SRS time domain resource linked list is a subframe reserved for an eMTC user terminal.
7. The method of claim 6, wherein the number of uplink subframes available as SRS in a radio frame is at least 2.
8. An apparatus for allocating Sounding Reference Signal (SRS) resources and Physical Uplink Control Channel (PUCCH) resources in enhanced machine-type communication (eMTC), comprising:
a resource allocation request acquisition module, configured to receive an uplink resource allocation request of an eMTC user terminal; the uplink resource allocation request comprises an uplink channel quality estimation parameter SRS resource allocation request and a physical uplink control channel PUCCH resource allocation request;
an SRS resource allocation module, configured to search a preset SRS time domain resource linked list according to the uplink resource allocation request, and determine a first subframe having idle resources in the SRS time domain resource linked list as an SRS initial resource of the eMTC user terminal; the SRS time domain resource linked list is a resource table used for storing subframes which can be used as SRS resources;
a PUCCH resource allocation module, configured to search, in a preset time domain resource chain table of the PUCCH resource, a subframe having idle resources from the next two subframes of the first subframe according to a configured SRS transmission period and a transmission period of the PUCCH resource, and determine the searched subframe as an initial resource of the PUCCH resource; and the time domain resource linked list of the PUCCH resources is a resource table used for storing subframes which can be used as the PUCCH resources.
9. The apparatus of claim 8, wherein the PUCCH resource allocation request comprises a channel quality indication, CQI, resource allocation request or a scheduling request, SR, resource allocation request;
when the PUCCH resource allocation request is a CQI resource allocation request, the sending period of the PUCCH resource is a CQI sending period, the time domain resource linked list of the PUCCH resource is a CQI time domain resource linked list, and the initial resource of the PUCCH resource is the initial resource of the CQI resource; the CQI time domain resource chain table is a resource table used for storing subframes which can be used as the CQI resources;
when the PUCCH resource allocation request is an SR resource allocation request, the sending cycle of the PUCCH resource is an SR sending cycle, the time domain resource linked list of the PUCCH resource is an SR time domain resource linked list, and the initial resource of the PUCCH resource is an initial resource of the SR resource; the SR time domain resource linked list is a resource table used to store subframes that can be used as the SR resources.
10. The apparatus of claim 8, wherein the PUCCH resource allocation module comprises a first resource allocation unit and a second resource allocation unit;
a first resource allocation unit, configured to, when the SRS transmission period is greater than or equal to the transmission period of the PUCCH resource, traverse to the next m subframes of the first subframe from the next two subframes of the first subframe in a time domain resource linked list of the PUCCH resource, find a second subframe with idle resources, and determine the second subframe as a starting resource of the PUCCH resource; the m is equal to the value of the transmission period of the PUCCH resource;
a second resource allocation unit, configured to, when the SRS transmission period is smaller than the transmission period of the PUCCH resource, search, in a time domain resource linked list of the PUCCH resource, a third subframe having idle resources in a range from a next two subframes of the first subframe to a next m subframes of the first subframe, and determine the third subframe as a starting resource of the PUCCH resource; the third subframe does not comprise the subframe where the SRS resource is located and a subframe next to the subframe where the SRS resource is located.
11. The apparatus of claim 8, further comprising:
a resource linked list initialization module, configured to initialize a time domain resource linked list of the PUCCH resource, specifically, to initialize an available starting subframe in each transmission cycle of the PUCCH resource with the configured retransmission times of the PUCCH resource as an interval, where the number of the available starting subframes in each transmission cycle is a quotient of a value of the transmission cycle and the retransmission times, and a first available starting subframe in each transmission cycle is a first subframe in a corresponding cycle; the retransmission times are less than or equal to the value of the transmission period of the PUCCH resources;
the second subframe or the third subframe is a subframe with idle resources in the available starting subframe.
12. The apparatus of claim 10 or 11, further comprising:
and the PUCCH resource reallocation module is used for searching the time domain resource linked list of the PUCCH resource and determining the available subframe with the most idle resources in the time domain resource linked list of the PUCCH resource as the starting resource of the PUCCH resource when the second subframe or the third subframe is not searched.
13. The apparatus of claim 8, further comprising:
the system comprises an uplink resource dividing module, a resource allocation module and an eMTC (enhanced multi-carrier) user terminal, wherein the uplink resource dividing module is used for dividing an SRS (sounding reference signal) available uplink subframe in configured uplink resources in a time domain according to the type of the user terminal, and is specifically used for numbering subframes in an SRS available uplink subframe set, reserving odd subframes in the set for the LTE user terminal, and reserving even subframes in the set for the eMTC user terminal;
the types of the user terminals comprise a Long Term Evolution (LTE) user terminal and an eMTC user terminal;
and the subframe which can be used as the SRS resource in the SRS time domain resource linked list is a subframe reserved for an eMTC user terminal.
14. The apparatus of claim 13, wherein the number of uplink subframes available for SRS in a radio frame is at least 2.
15. A base station, characterized in that it comprises a processor, a memory and a communication bus, the processor and the memory being connected by said communication bus, the memory having stored therein a computer program for implementing the method of any one of claims 1-7 when executed by the processor, said processor executing said computer program stored in the memory.
16. A storage medium, characterized by: the storage medium has stored therein a computer program which, when executed by a processor, implements the method of any one of claims 1-7.
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