CN109392117B - Scheduling request configuration method in orthogonal frequency division multiplexing system - Google Patents

Scheduling request configuration method in orthogonal frequency division multiplexing system Download PDF

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CN109392117B
CN109392117B CN201710681135.2A CN201710681135A CN109392117B CN 109392117 B CN109392117 B CN 109392117B CN 201710681135 A CN201710681135 A CN 201710681135A CN 109392117 B CN109392117 B CN 109392117B
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user equipment
resources
configuration
resource
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CN109392117A (en
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周欣
姜春霞
吕征南
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Potevio Information Technology 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
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • 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
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

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Abstract

The embodiment of the invention provides a scheduling request configuration method in an orthogonal frequency division multiplexing system. The method comprises the following steps: the network side configures SR resources for the user equipment through signaling messages corresponding to different scenes of the user equipment, so that the user equipment can use the UE-dedicated SR resources or the fast-scheduling SR resources to perform scheduling requests according to the configuration information of the SR resources and the scheduling mode indicated by the network side. The embodiment of the invention configures SR resources for the user equipment through the signaling message by the network side, and solves some column problems caused by implementing SR through random access in the prior art; and the SR resources are divided into the special SR resources of the UE and the fast-tuning SR resources so as to be compatible with the reasonable utilization of the single-band UE and the optimized sub-band resources. The embodiment of the invention ensures that the resource allocation of the user equipment is not affected by the current sub-band where the SR resource special for the UE is located, and ensures that the scheduling of the wireless resource is more flexible.

Description

Scheduling request configuration method in orthogonal frequency division multiplexing system
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for configuring a scheduling request in an orthogonal frequency division multiplexing system.
Background
In a broadband access system, the system available bandwidth is divided into a plurality of contiguous or non-contiguous subbands, each of which is transmitted using orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) techniques. The sub-band is divided into synchronous sub-band and common sub-band according to the function, the synchronous sub-band is mainly used for uplink and downlink synchronous and broadcast channels, and the common sub-band is used for normal service transmission.
To reduce cost and implementation complexity, a User Equipment (UE) may support multiple subbands and single-subband modes of operation, i.e., the UE receiver bandwidth need not be the entire system bandwidth, may support reception of multiple or single subbands, and need not be capable of receiving all subbands. Depending on the hardware capabilities, the UE supports operation on all or part of the subbands, with the simplest (i.e., lower cost) UE supporting operation on a single subband. In this way, the bandwidth requirements of the UE receiver are reduced, and the system's hardware capacity requirements are also reduced.
A typical application scenario is a power load monitoring communication network, where the spectrum is discretely distributed over the 230M frequency band. The distribution of the 230MHz band frequency resources of the network is shown in fig. 1. The frequency spectrum of the frequency band is comb-shaped, the frequency resource of the frequency band can be divided into a plurality of sub-bands, the sub-band of the lowest frequency point is 223.525MHz, and the sub-band of the highest frequency point is 231.65MHz.
For the UE to support the single-subband operation mode, downlink control information (Downlink Control Information, DCI) carried on a downlink control channel (PDCCH) must be sent independently on each subband, otherwise the single-subband UE cannot listen to the PDCCH due to receiver bandwidth limitations. Therefore, a system scheme needs to be designed according to the characteristics of 230MHz frequency band frequency resources, the requirements of a single-band UE working mode and the requirements of coverage, and a solution is mainly provided for the problem of Scheduling Request (SR) resource allocation.
Disclosure of Invention
The present invention provides a scheduling request configuration method in an orthogonal frequency division multiplexing system that overcomes or at least partially solves the above-mentioned problems.
According to one aspect of the present invention, there is provided a scheduling request configuration method in an orthogonal frequency division multiplexing system, including:
the network side configures SR resources for the user equipment through signaling messages corresponding to different scenes of the user equipment, so that the user equipment uses the UE-dedicated SR resources or the fast-scheduling SR resources to carry out scheduling requests according to the configuration information of the SR resources and a scheduling mode indicated by the network side;
the SR resources comprise UE special SR resources and fast scheduling SR resources, wherein the UE special SR resources are specific scheduling request sending resources allocated for the user equipment by a network side, and the fast scheduling SR resources are scheduling request sending resources allocated in advance for the user equipment for carrying out fast scheduling mode transmission service by the network side.
According to another aspect of the present invention, there is also provided a scheduling request configuration method in an orthogonal frequency division multiplexing system, including:
the user equipment receives SR resource configuration information carried by the network side through signaling information;
scheduling request is carried out by using the special SR resources or the fast SR resources of the UE based on the SR resource configuration information and the scheduling mode indicated by the network side;
the special SR resource of the UE is a specific resource which is allocated by the network side for sending the scheduling request of the user equipment, and the quick SR resource is a resource which is allocated by the network side for sending the scheduling request in advance for the user equipment for carrying out the transmission service in a quick scheduling mode.
The embodiment of the invention provides a scheduling request configuration method in an orthogonal frequency division multiplexing system, which is used for configuring SR resources for user equipment through signaling messages by a network side, so as to solve the problem of how to configure the SR resources for the UE to carry out SR transmission based on the requirements of the frequency spectrum characteristics of a power network for meeting the requirements of single-band UE and supporting coverage enhancement; and the SR resources are divided into the special SR resources of the UE and the fast-tuning SR resources so as to be compatible with the reasonable utilization of the single-band UE and the optimized sub-band resources. The embodiment of the invention ensures that the resource allocation of the user equipment is not limited by the sub-band where the SR resources special for the UE are located, and ensures that the scheduling of the wireless resources is more flexible.
Drawings
Fig. 1 is a schematic diagram of a 230MHz band frequency resource distribution of an embodiment of the present invention;
fig. 2 is a flowchart illustrating an RRC connection establishment procedure according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating an RRC connection reestablishment procedure according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating an RRC connection reconfiguration procedure according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a radio frame structure in a communication system according to an embodiment of the present invention;
fig. 6 is a schematic diagram of SR resource positions on each subband of each cell corresponding to embodiment 7 cells of the present invention;
fig. 7 is a flowchart of a scheduling request configuration method in an ofdm system according to an embodiment of the present invention.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
The power communication network is generated to ensure the safe and stable operation of the power system. The system is commonly called as three main supports for safe and stable operation of the power system together with a relay protection, safe and stable control system and a dispatching automation system of the power system. At present, the method is more the basis for power grid dispatching automation, network operation marketing and management modernization; is an important means for ensuring the safe, stable and economic operation of the power grid; is an important infrastructure of the power system. Because the reliability of the communication, the rapidity and the accuracy of the transmission of the protection control information are required strictly by the power communication network, and the power department has the special resource advantage of developing the communication, the power companies in most countries in the world establish the special communication network of the power system in a self-building mode.
The scheduling request (Scheduling Request, SR) is a way for the UE to request uplink resources to a base station (Evolved Node B, eNodeB, i.e. the name of the base station in LTE for short for eNB) for new data transmission. The scheduling request procedure of the current LTE system is triggered by a buffer status report (Buffer Status Reporting, BSR), and when a regular BSR is triggered and no uplink resources are available, the UE will send an SR to the eNode B. And after the eNodeB receives the SR, the UE initiating the SR is scheduled to start transmitting uplink data. NB-IoT mainly supports latency insensitive, no minimum rate requirements, large transmission interval and low transmission frequency traffic, so NB-IoT system design does not support PUCCH, only supports UE to use random access to implement SR functionality.
The invention increases transmission delay and system overhead if SR is realized by random access in the NB-IoT system, and cannot meet the requirements of users in the power network industry on service transmission delay. In consideration of the spectrum characteristics of the power network, the requirements for supporting the single-band UE and the requirements for enhancing coverage, the embodiment of the invention provides a scheduling request configuration method in an orthogonal frequency division multiplexing system, which comprises the following steps:
S100, a network side configures SR resources for user equipment through signaling messages corresponding to different scenes of the user equipment, so that the user equipment can use the UE-dedicated SR resources or the fast-tuning SR resources to carry out scheduling requests according to the configuration information of the SR resources and a scheduling mode indicated by the network side;
the SR resources comprise UE special SR resources and fast scheduling SR resources, wherein the UE special SR resources are specific scheduling request sending resources allocated for the user equipment by a network side, and the fast scheduling SR resources are scheduling request sending resources allocated in advance for the user equipment for carrying out fast scheduling mode transmission service by the network side.
The execution body of the network side in the communication system in the embodiment of the invention is a base station (eNodeB or eNB). The user equipment of the invention can be various wired terminals or wireless terminals in a communication system, such as mobile phones, tablets, computers and the like. The UE in this document refers to the user equipment in the embodiment of the present invention, and the UE may be replaced with each other in context semantics. Here S100 only represents the number of steps of the network side method.
The embodiments of the present invention are based on a power communication network in which a UE sends a Scheduling Request (SR) to request uplink resources for new transmissions to an eNB. For the SR resources, the eNB will allocate dedicated SR resources and fast scheduling SR resources for the UE to send scheduling requests according to a certain principle. When the regular BSR is triggered and no uplink resources are available, the UE will repeatedly transmit SRs by the number of one time on allocating dedicated SR resources or fast scheduling SR resources thereto. The SR is repeatedly transmitted in the time domain, supporting coverage enhancement by energy accumulation.
In order to be compatible with the reasonable utilization of the single-subband UE and the optimized subband resources, the SR resources are divided into UE-dedicated SR resources and fast scheduling SR resources.
Wherein, the UE-specific SR resource is a specific resource allocated by the network side for the UE to transmit a scheduling request, and the resource is periodically valid. The fast scheduling SR resource is a resource of a transmission SR which is planned in advance by the network side for the UE transmitting the service in the fast scheduling manner, and the resource can be used only under the condition that the UE transmits the service in the fast scheduling manner is satisfied, and it can also be called as the fast scheduling SR resource, and the resource is periodically effective in event type.
The fast scheduling mode refers to that, due to the reasons that the resident sub-band where the UE is located is performing data transmission or preparing to perform data transmission for other UEs, when the network side schedules the UE, resources are allocated to other sub-bands (i.e. non-resident sub-bands), and the UE performs service data transmission on the non-resident sub-bands indicated by the scheduling. Therefore, the UE can be ensured to perform data transmission in time, and system resources can be better and reasonably utilized.
The embodiment of the invention provides a scheduling request configuration method in an orthogonal frequency division multiplexing system, namely a method for configuring SR resources for UE by eNB, wherein the SR resources are configured for the UE through signaling messages by a network side, and the SR resources are divided into special SR resources for the UE and quick-tuning SR resources at the same time so as to be compatible with single-band UE and optimize the reasonable utilization of sub-band resources. The embodiment of the invention ensures that the resource allocation of the user equipment is not limited by the sub-band where the SR resources special for the UE are located, and ensures that the scheduling of the wireless resources is more flexible.
In one embodiment, the different scenarios of the user equipment include any one or more of the following three scenarios: the user equipment initially accesses the network from an RRC idle state, and triggers the RRC connection reestablishment scene and the network side triggers the RRC connection reconfiguration scene;
correspondingly, the network side configuring SR resources for the ue through signaling messages corresponding to different scenarios of the ue further includes:
when the user equipment initially accesses a network from an RRC idle state, the network side carries an SR configuration cell SchedulingRequestConfig through an RRCConnection setup message and sends the SR configuration cell SchedulingRequestConfig to the user equipment, so that SR resources are configured for the user equipment;
when the ue triggers the RRC connection reestablishing scenario, the network carries an SR configuration element through an rrcconnectionreestisistigment message
Scheduling request Config is sent to the user equipment, so that SR resources are configured for the user equipment; the scenario of the user equipment in RRC connection re-establishment includes radio link failure, etc.
When a network side triggers a RRC connection reconfiguration scene, the network side carries an SR configuration cell through an RRCConnection reconfiguration message
And transmitting the schedulingRequestConfig to the user equipment, so as to configure SR resources for the user equipment. The scenarios of the ue reconfiguration in RRC connection include: the network side pre-modifies the SR resource configuration information of the UE or the cell switching and the like. The network side reconfigures the SR resources of the service cell for the UE which pre-adjusts the SR resources through the RRC connection reconfiguration process or reconfigures the SR resources of the target cell for the UE which performs the switching because of the SR resource planning or the connection state mobility management in the adjustment cell.
Fig. 2, fig. 3, and fig. 4 are reference to three different scenarios of a ue according to an embodiment of the present invention, where fig. 2 is a schematic flow chart of an RRC connection establishment procedure according to an embodiment of the present invention, fig. 3 is a schematic flow chart of an RRC connection reestablishment procedure according to an embodiment of the present invention, and fig. 4 is a schematic flow chart of an RRC connection reconfiguration procedure according to an embodiment of the present invention.
Referring to fig. 2, when the UE initially accesses the network from the RRC idle state, i.e., in the RRC connection establishment procedure, the UE sends an RRCConnectionRequest message to the base station, and the base station returns an RRCConnectionSetup message, and sends the RRCConnectionSetup message carrying an SR configuration element schedule request configuration to the UE through the RRCConnectionSetup message, so as to implement configuration of SR resources of the UE.
Referring to fig. 3, when the UE triggers the RRC connection reestablishment scenario, the UE sends an rrcconnectionreestiblestischentrequest message to the base station, and the base station returns the rrcconnectionreestiblestischent message and passes through
The rrcconnectionreestiblestring message carries SR configuration cells
And the schedulingRequestConfig is sent to the user equipment, so that the SR resources of the UE are configured.
Referring to fig. 4, when the network side triggers the RRC connection reconfiguration scenario, the base station sends an RRCConnectionReconfiguration message to the UE, and passes through
The rrcconnectionreconfigurationmessage carries SR configuration cells
And the schedulingRequestConfig is sent to the user equipment, so that the SR resources of the UE are configured.
In one embodiment, when the ue initially accesses the network from the RRC idle state, the network side carries an SR configuration cell schedule request configuration through a physical configdedicated cell in a radio resource control configuration dedicated cell of an RRCConnectionSetup message;
when the user equipment triggers the RRC connection reestablishing scene, the network side carries an SR configuration cell SchedulingRequestConfig through a physical ConfigDedimated cell in a radio resource eConfigDedimated cell of an RRCConnection Reescription message;
When the network side triggers the RRC connection reconfiguration scenario, the network side carries an SR configuration cell SchedulingRequestConfig through a physical configdodified cell in a radio resource configdodified cell of an RRCConnectionReconfiguration message.
In one embodiment, the configuration information of the SR resource includes some or all of the following parameters: SR user resident factor SR-resisitnf, SR repetition factor SR-NumRepetitionFactor, SR maximum transmission number dsr-TransMax, UE-specific SR configuration information, and fast-tuning SR configuration information;
the SR user resident factor SR-resisitive F is used for indicating the time interval of SR resources on each sub-band in a cell;
the SR repetition factor SR-NumRepetitionFactor is used for indicating the repetition number of the sent SR;
the SR maximum transmission times dsr-TransMax is used for indicating the maximum times of SR transmission;
the UE-specific SR configuration information is a configuration parameter of specific sending scheduling request resources allocated to the user equipment by a network side, and comprises the steps of establishing the UE-specific SR configuration and/or releasing the UE-specific SR configuration, wherein the established UE-specific SR configuration comprises SR resource position information;
the fast scheduling SR configuration information is a configuration parameter of a transmission scheduling request resource pre-allocated by a network side for a user equipment for performing a fast scheduling mode transmission service, and includes establishing a fast scheduling SR configuration and/or releasing the fast scheduling SR configuration, wherein the establishing the fast scheduling SR configuration includes SR resource location information.
In all embodiments of the present invention, the repeated SR belongs to one SR transmission; the SR resource location information is a related parameter of the SR resource location configured for the UE, and will not be described herein.
In one embodiment, the parameters of the SR configuration cell SchedulingRequestConfig include at least UE-specific SR configuration information and fast-tuning SR configuration information.
In the embodiment of the invention, a network side configures SR resources for user equipment through signaling messages corresponding to different scenes of the user equipment, wherein the different scenes comprise: the user equipment initially accesses the network from an RRC idle state, and triggers the RRC connection reestablishment scene and the network side triggers the RRC connection reconfiguration scene; please refer to fig. 2, 3 and 4 and the description related to this document for corresponding signaling messages. The embodiment of the invention realizes the SR resource configuration of the UE by carrying the SR configuration cell scheduling RequestConfig in the corresponding signaling message, and provides a plurality of realization modes of the configuration information of the SR resource in the signaling message, wherein the SR configuration cell scheduling RequestConfig at least comprises two parameters of the SR configuration information special for the UE and/or the fast-tuning SR configuration information.
Specifically, the embodiment of the invention provides at least three cell implementation modes for packaging the configuration information of the SR resource, including a first cell implementation mode, a second cell implementation mode and a third cell implementation mode.
In one embodiment, the first cell implementation is:
the network configures an SR user resident factor SR-resisitive F and an SR repetition factor SR-NumRepetitionFactor as cell-level parameters, and sends the cell-level parameters to the user equipment through system information;
the network configures the SR maximum transmission times dsr-TransMax, the UE-specific SR configuration information and the fast-tuning SR configuration information in the SR configuration element
And transmitting the RRC proprietary signaling message in the schedulingRequestConfig to the user equipment.
In the first cell implementation manner of the embodiment of the present invention, the base station configures SR user resident factor SR-resisitive f and SR repetition factor SR-numrepetition factor as cell-level parameters, and carries them in the system information. In particular, the two parameters may be in the main information block
(MasterInformationBlock, MIB) or a system information block (SystemInformationBlocks, SIBs). Other SR-related configuration information is indicated to the UE by RRC-specific messages, i.e. SR maximum transmission times dsr-TransMax, UE-specific SR configuration information and fast-tune SR configuration information are contained in the SR configuration cell schedule request config.
In this embodiment, the SR-subscriber-resident factor SR-resisiting f carried by the system information is a factor indicating a time interval of SR resources on each subband in a cell, the parameter is a cell-level parameter, the value of the parameter is a positive integer, and the time interval is equal to SR-resisiting f 1s. The total number of SR resources and all SR resource locations on one subband may be determined from the SR-reduction factor SR.
In the first cell implementation manner of the embodiment of the present invention, the configuration of the SR resource location information may be implemented in any one of two manners, including a first location information manner and a second location information manner.
The first position information mode is as follows: the SR resource location information includes an SR offset srOffset for specifying an offset of an SR resource location on one subband;
the second position information mode is as follows: the SR resource position information comprises an SR frame offset srFrameOffset and an index C of a code used for transmitting the SR index The SR frame offset srFrameOffset is used to specify the systematic frame offset of SR in the time interval with the length of SR-slidingfx 1s, and the index C of the code used for transmitting SR index For indicating to the user equipment by means of an index the code used for transmitting the SR.
In the first location information manner of the embodiment of the present invention, the SR offset srOffset is a UE-level parameter, and the UE determines, according to the SR offset srOffset, an SR resource location where the UE can use to transmit an SR.
The embodiment of the invention is based on the power communication system, and the single sub-band frame structure design of the 230MHz frequency band power network system is shown in fig. 5, and the SR occupies 4 symbols in one radio frame and is positioned at the last 4 symbols of the subframe 1, so that UE does not need to know the SR to send the subframe number. Specifically, the length of one radio frame in the system is 25ms, which includes 5 subframes of 5ms, and 9 OFDM symbols per subframe. And planning uplink and downlink resources according to the characteristics of uplink and downlink service of the system. The downlink resources are 9 symbols of subframe 0 and the first 4 symbols of subframe 1, for a total of 13 symbols. The uplink resources are the last 4 symbols of the subframe 1, the subframe 2, the subframe 3 and the subframe 4, wherein if the SR is configured on a certain radio frame, the SR is the last 4 symbols of the subframe 1. The radio frame structure of all embodiments of the present invention is shown in fig. 5, and will not be described in detail.
In the embodiment of the invention, the SR resources on one radio frame on one sub-band can support 8 UEs to report the SR. According to SR user resident factor SR-resisitive F, the total number N of SR resources on each sub-band can be calculated according to the formula (1) SR-subband I.e. the number of UEs supporting the configuration of SR resources at most on each sub-band in a certain cell, equation (1) is:
N SR-subband ＝ sr-residentF*40/(n+1)*8 (1)
where n is a multiplexing factor given by considering the influence of inter-cell co-channel interference. The SR resource position offset on one sub-band is indicated by SR offset, and the SR is in the range of [0, N SR-subband -1]。
The UE determines the position of the SR resource according to the physical cell ID, the SR-restriction F and the srOffset of the cell in which the UE is positioned, namely the SR resource corresponding to the UE has one SR resource position indicated by the srOffset in a time interval taking the SR-restriction F1 s as the length.
Specifically, the radio frame number SFN where the SR resource configured by the UE is located, and the index of the code used for transmitting the SR is C index . The specific calculation formula is as follows:
SFN mod ( sr-residentF*40) ＝ a (2)
C index ＝ srOffset mod 8 (3)
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure GDA0004074521720000121
for b, when phycelid mod n=0, b=n; when the phoelld mod n is not equal to 0, b=phoelld mod n, where phoelld is the physical cell ID of the cell where the UE is located, and n is a multiplexing factor given by considering the influence of inter-cell co-channel interference. The SR-resisiting factor SR-resisiting f is SR user resident factor SR-resisiting f, and srOffset is SR offset srOffset. In other words, a radio frame satisfying the above formula condition can be used to transmit an SR.
Thus, the UE can obtain the location of SR resources for which the network side is configured.
Note that, in the above equation (1), the multiplexing factor n is mentioned, and this value need not be explicitly indicated by the dedicated parameter of the RRC message, and the multiplexing factor n value may be implicitly indicated by the data structure design of the SR offset srOffset.
The data structure of the SR offset srOffset parameter is designed in such a way that it can indicate the total number of srOffset, i.e. N SR-subband The value, in turn, may indicate the srOffset value of the current configuration. The UE can calculate the multiplexing factor n according to the sr-resinstF and the formula (1).
The SR offset srOffset design:
Figure GDA0004074521720000122
furthermore, the UE may calculate the UE-specific SR resource location and the fast-tuning SR resource location of the UE according to configuration parameters carried by different cells, respectively. In addition, the sub-band where the UE dedicated SR resource position is located is the resident sub-band of the UE, and the sub-band where the fast-tuning SR resource position is located is the non-resident sub-band to which the UE is fast-tuned.
Referring to fig. 6, for ease of understanding, an embodiment of the present invention is given below. Considering the influence of inter-cell co-channel interference, when the multiplexing factor n is 7 and the SR-resisitng f is 1, the SR resource position on each sub-band of each cell corresponding to 7 cells is shown in fig. 6. As can be seen from fig. 6, there are 40 SR resource positions on each sub-band of each cell, where 35 SR resources are UE-specific SR resources, as shown by the dark grey squares in fig. 6; the 5 SR resources are fast-tuning SR resources, as shown by the white small boxes in fig. 6. 40 SR resource positions are indicated with srOffset.
The second position information mode in the embodiment of the invention is as follows: the SR resource position information comprises an SR frame offset srFrameOffset and an index C of a code used for transmitting the SR index The SR frame offset srFrameOffset is used to specify the systematic frame offset of SR in the time interval with the length of SR-slidingfx 1s, and the index C of the code used for transmitting SR index For indicating to the user equipment by means of an index the code used for transmitting the SR.
In the second location information manner according to the embodiment of the present invention, the SR frame offset srFrameOffset is a system frame offset of the SR specified in a time interval in which SR-resisiting f×1s is a length, and the parameter is a UE-level parameter, and the value range is [0, SR-resisiting f×40-1].
Index C of code for transmitting SR index Indicating the code used for transmitting the SR by an index mode, wherein the parameter is a UE-level parameter with the value range of [0,7]。
The UE may offset srFrameOffset and index C of the code used to transmit the SR according to the SR frame index To determine the SR resource locations at which the UE is available to transmit SRs.
In the embodiment of the invention, 8 UEs can be supported by the SR resource on one radio frame on one sub-band to report SRs, and the UEs are indicated and distinguished by sending the index of the code used by the SR.
The UE is according to srFrameOffset and C index To further determine the SR resource location available to the UE itself. Specifically, the radio frame number SFN where the SR resource configured by the UE is located. The calculation formula is as follows:
SFN mod ( sr-residentF*40) ＝ srFrameOffset (4)
Wherein sr-resisittf and srFrameOffset are network side configuration parameters. In other words, a radio frame satisfying the above formula condition can be used to transmit an SR.
The index Cindex of the code used for transmitting the SR configures parameters for the network side. Thus, the UE can obtain the location of SR resources for which the network side is configured.
Furthermore, the UE may calculate the UE-specific SR resource location and the fast-tuning SR resource location of the UE according to configuration parameters carried by different cells, respectively. In addition, the sub-band where the UE dedicated SR resource position is located is the resident sub-band of the UE, and the sub-band where the fast-tuning SR resource position is located is the non-resident sub-band to which the UE is fast-tuned.
In addition, in the same manner as the first location information, according to SR-reduction f, the total number of SR resources on each sub-band may be calculated according to equation (1).
Thus, regardless of the first or second location information manner, the SR resource is periodic for the UE, occurring once every SR-resisiting f 1s time interval, with the SR period for the UE being equal to the SR-resisiting f 1s SR repetition times. That is, once a UE needs to transmit an SR, the UE transmits the SR at the location of its configured SR resource, and the SR transmission number is the SR repetition number.
In one embodiment, the second cell implementation is:
the network configures SR user resident factor SR-resisitnf, SR repetition factor SR-NumRepetitionFactor, SR maximum transmission number dsr-TransMax, UE-specific SR configuration information and fast tuning SR configuration information in the SR configuration element schedule request config, and sends the SR user equipment with RRC-specific signaling message.
The second cell implementation, the SR resource location information includes an SR offset srOffset, where the SR offset srOffset is used to specify an offset of an SR resource location on a subband; or alternatively
The SR resource position information comprises an SR frame offset srFrameOffset and an index C of a code used for transmitting the SR index The SR frame offset srFrameOffset is used to specify the systematic frame offset of the SR in the time interval with the SR-slidingfx 1 second as the length, and the code used for transmitting the SRIndex C of (2) index For indicating to the user equipment by means of an index the code used for transmitting the SR.
The second cell implementation manner in the embodiment of the present invention is different from the first cell implementation manner in that: the first cell implementation mode takes part of parameters of the SR resource configuration information as cell-level parameters to be carried in system information, and the other part of parameters to be carried in an SR configuration cell SchedulingRequestConfig; the first cell implementation carries all parameters of the SR resource configuration information in the SR configuration cell SchedulingRequestConfig. And the second cell implementation manner is the same as the first and second location information manners in the first cell implementation manner, please refer to the related description of the first cell implementation manner in the embodiment of the present invention, which is not repeated herein.
In one embodiment, the third cell implementation is:
the network configures the UE special SR configuration information and the fast-tuning SR configuration information in the SR configuration cell scheduling RequestConfig and sends the SR configuration information and the fast-tuning SR configuration information to the user equipment through an RRC special signaling message;
the UE-specific SR configuration information also comprises an SR repetition factor SR-NumRepetitionFactor and an SR maximum transmission number dsr-TransMax;
the fast-tuning SR configuration information also comprises an SR repetition number factor
SR-numrepetition factor and SR maximum transmission times dsr-TransMax.
In the third cell implementation manner of the embodiment of the present invention, the base station encapsulates SR repetition factor SR-numrepetition factor and SR maximum transmission number dsr-TransMax into UE-specific SR configuration information and fast-tuning SR configuration information, and configures the UE-specific SR configuration information and the fast-tuning SR configuration information in SR configuration cell schedule request configuration, thereby implementing the configuration cell of SR resources.
In the first cell implementation manner and the second cell implementation manner in the embodiments of the present invention, the configuration of the SR resource location information is the same as that of the first cell implementation manner, and may be implemented in any one of two manners, including the first location information manner and the second location information manner in the embodiments described above, which are not described herein again.
In the three cell implementations of the embodiments of the present invention, the SR resource positions of the UEs used in the cell in the first cell implementation are periodic and the periodic intervals of the SR resource positions are the same. And SR resource locations of UEs used in the cell in the second cell implementation and the third cell implementation are periodic but periodic intervals of SR resource locations of different UEs may be different. And, with respect to the second cell implementation, the maximum transmission times and SR repetition times of the dedicated SR and the fast-tuning SR of the same UE in the third cell implementation may be different, and the periodic interval of the dedicated SR resource location and the periodic interval of the fast-tuning SR resource location of the same UE may be different.
In all the embodiments, for the SR repetition factor SR-numrepetition factor in the configuration information of the SR resource, the network side further configures a corresponding repetition mapping, specifically: based on the coverage grade of the user equipment, the network side configures a corresponding repetition number mapping for the user equipment, wherein the repetition number of one SR transmission is equal to the SR repetition number factor SR-NumRepetitionFactor multiplied by the repetition number mapping.
Preferably, the repetition number is mapped to the PRACH repetition number of the coverage class, and the repetition number of one SR transmission is equal to SR repetition number factor SR-numrepetition factor multiplied by the PRACH repetition number.
The coverage level of the user equipment in the embodiment of the invention is as follows:
different coverage grades are configured according to the distribution condition of the UE in each cell, and the coverage grade of the UE can be mapped according to the RSRP measured value of the UE and the corresponding RSRP threshold range by the UE in each coverage grade. The number of coverage classes and the RSRP measurement report mapping for each coverage class are configured by the network side. For example, in a specific implementation, the network side may configure up to 3 coverage levels for a cell according to UE distribution.
Referring to fig. 7, the embodiment of the present invention further provides a method for configuring a scheduling request in an orthogonal frequency division multiplexing system, including:
s201, user equipment receives SR resource configuration information carried by a network side through signaling information;
s202, scheduling request is carried out by using the special SR resources or the fast SR resources of the UE based on the SR resource configuration information and the scheduling mode indicated by the network side;
the special SR resource of the UE is a specific resource which is allocated by the network side for sending the scheduling request of the user equipment, and the quick SR resource is a resource which is allocated by the network side for sending the scheduling request in advance for the user equipment for carrying out the transmission service in a quick scheduling mode.
The embodiment of the invention is a processing method of a user side corresponding to the processing of the network side, and an execution main body is user equipment. The user equipment realizes the SR resource configuration by receiving the SR resource configuration information carried by the signaling message at the network side, does not need to realize the SR function through a random access process, and divides the SR resource into the UE-dedicated SR resource and the fast-tuning SR resource so as to be compatible with the reasonable utilization of the single-sub-band UE and the optimized sub-band resource, so that the resource allocation of the user equipment is not affected by the present sub-band of the UE-dedicated SR resource, and the scheduling of the wireless resource is more flexible.
The meaning and the processing procedure of each parameter of the following embodiments of the scheduling request method at the user side correspond to the scheduling request method at the network side, and specific reference may be made to the related description at the network side, which is not repeated herein. Here S201 and S202 represent only the numbers of steps of the user side method.
In one embodiment, when the scheduling manner indicated by the network side is fast scheduling, the user equipment sends an SR on the non-resident sub-band using fast scheduling SR resources;
otherwise, the user equipment uses the UE special SR resource to send SR on the resident sub-band;
wherein the stay sub-band is a sub-band where the user equipment stays through a random access procedure or a sub-band where the user equipment stays according to a handover sub-band signaling instruction at a network side.
In one embodiment, the SR resource configuration information is some or all of the following parameters: SR user resident factor SR-resisitnf, SR repetition factor SR-NumRepetitionFactor, SR maximum transmission number dsr-TransMax, UE-specific SR configuration information, and fast-tuning SR configuration information;
the SR user resident factor SR-resisitive F is used for indicating the time interval of SR resources on each sub-band in a cell;
the SR repetition factor SR-NumRepetitionFactor is used for indicating the repetition number of the sent SR;
the SR maximum transmission times dsr-TransMax refer to the maximum times of SR transmission;
the UE-specific SR configuration information is a configuration parameter of specific sending scheduling request resources allocated to the user equipment by a network side, and comprises the steps of establishing the UE-specific SR configuration and/or releasing the UE-specific SR configuration, wherein the established UE-specific SR configuration comprises SR resource position information;
the fast scheduling SR configuration information is a configuration parameter of a transmission scheduling request resource pre-allocated by a network side for a user equipment for performing a fast scheduling mode transmission service, and includes establishing a fast scheduling SR configuration and/or releasing the fast scheduling SR configuration, wherein the establishing the fast scheduling SR configuration includes SR resource location information.
Corresponding to the first cell implementation manner and the second cell implementation manner in the network side method of the embodiment of the present invention, the SR resource location information includes SR offset srOffset, where the SR offset srOffset is used to specify an offset of an SR resource location on a subband; or alternatively
The SR resource position information comprises an SR frame offset srFrameOffset and an index C of a code used for transmitting the SR index The SR frame offset srFrameOffset is used to specify the systematic frame offset of the SR in the time interval with the SR-slidingfx 1 second as the length, and the index C of the code used for transmitting the SR index For indicating to the user equipment by means of an index the code used for transmitting the SR.
Corresponding to the third cell implementation manner in the network side method of the embodiment of the present invention, the SR resource location information includes SR-dwelling factor SR-dwelling f and SR offset srOffset, where the SR offset srOffset is used to specify an offset of an SR resource location on a subband; or alternatively
The SR resource position information comprises an SR user resident factor SR-sliding F, an SR frame offset srFrameOffset and an index C of a code used for transmitting the SR index The SR frame offset srFrameOffset is used to specify the systematic frame offset of the SR in the time interval with the SR-slidingfx 1 second as the length, and the index C of the code used for transmitting the SR index For indicating to the user equipment by means of an index the code used for transmitting the SR.
In one embodiment, the ue determines the SR resource location according to the physical cell ID, SR-discovery f, and srOffset of the cell in which it is located, and satisfies the following two formulas:
SFN mod(sr-residentF*40)＝a；
C index ＝srOffset mod 8；
wherein SFN is the radio frame number where SR resource is located,
Figure GDA0004074521720000191
for b, when phycelid mod n=0, b=n; when the PHYCELLID mod n is not equal to 0, b=PHYCELLID mod n, where PHYCELLID is the physical cell ID of the cell where the user equipment is located, n is a multiplexing factor, SR-resisiting F is SR-resisiting F, and srOffset is SR offset srOffset. />
In one embodiment, the user equipment is according to sr-resident, srFrameOffset and C index To determine the transmit SR resource location, satisfying the following equation:
SFN mod(sr-residentF*40)＝srFrameOffset；
wherein SFN is the radio frame number where SR resource is located, SR-restriction F is SR user resident factor SR-restriction F, srFrameOffset is SR frame offset srFrameOffset, C index Index C of code used for transmitting SR index 。
The embodiments of the scheduling request method of the user side correspond to the method of the network side, and the configuration of the SR resources is realized by the mutual cooperation of the user side and the network side, so that the problem of how to configure the SR resources for the UE to perform SR transmission based on the frequency spectrum characteristics of the power network to meet the requirements of the single-band UE and the requirements of supporting coverage enhancement is solved; and provides a way to configure SR resources for UEs in different scenarios and corresponding RRC cell and DCI information designs. The method ensures that the resource allocation of the single-band UE is not limited by the sub-band where the SR resource special for the UE is located, and the wireless resource scheduling is more flexible; and the method ensures coverage enhancement, simultaneously effectively considers two factors of the utilization rate of SR resources and the waiting time of service transmission, simultaneously does not introduce extra transmission delay and signaling overhead, improves the uplink service transmission efficiency of UE and the experience of industry users, and has good beneficial effects.
The embodiment of the invention also provides a network device, which comprises an SR resource configuration module, wherein the SR resource configuration module is used for: the method comprises the steps that SR resources are configured for user equipment through signaling messages corresponding to different scenes of the user equipment, so that the user equipment can use the UE-dedicated SR resources or fast-scheduling SR resources to carry out scheduling requests according to the configuration information of the SR resources and a scheduling mode indicated by the network equipment;
the SR resources comprise UE special SR resources and fast scheduling SR resources, wherein the UE special SR resources are specific scheduling request sending resources allocated for the user equipment by a network side, and the fast scheduling SR resources are scheduling request sending resources allocated in advance for the user equipment for carrying out fast scheduling mode transmission service by the network side.
The network device in the embodiment of the present invention is configured to implement the scheduling request configuration method in the network side in the embodiment of the present invention, and in this embodiment and the following embodiments, the scheduling request configuration method in the network side corresponds to each other one by one, and for specific description of each embodiment, reference is made to the scheduling request configuration method in the network side, which is not repeated herein.
In one embodiment, the different scenarios of the user equipment include any one or more of the following three scenarios: the user equipment initially accesses the network from an RRC idle state, and triggers the RRC connection reestablishment scene and the network side triggers the RRC connection reconfiguration scene;
Correspondingly, the network side configuring SR resources for the ue through signaling messages corresponding to different scenarios of the ue further includes:
when the user equipment initially accesses a network from an RRC idle state, the network side carries an SR configuration cell SchedulingRequestConfig through an RRCConnection setup message and sends the SR configuration cell SchedulingRequestConfig to the user equipment, so that SR resources are configured for the user equipment;
when the ue triggers the RRC connection reestablishing scenario, the network carries an SR configuration element through an rrcconnectionreestisistigment message
Scheduling request Config is sent to the user equipment, so that SR resources are configured for the user equipment;
when a network side triggers a RRC connection reconfiguration scene, the network side carries an SR configuration cell through an RRCConnection reconfiguration message
And transmitting the schedulingRequestConfig to the user equipment, so as to configure SR resources for the user equipment.
In one embodiment, when the ue initially accesses the network from the RRC idle state, the network side carries an SR configuration cell schedule request configuration through a physical configdedicated cell in a radio resource control configuration dedicated cell of an RRCConnectionSetup message;
When the user equipment triggers the RRC connection reestablishing scene, the network side carries an SR configuration cell SchedulingRequestConfig through a physical ConfigDedimated cell in a radio resource eConfigDedimated cell of an RRCConnection Reescription message;
when the network side triggers the RRC connection reconfiguration scenario, the network side carries an SR configuration cell SchedulingRequestConfig through a physical configdodified cell in a radio resource configdodified cell of an RRCConnectionReconfiguration message.
In one embodiment, the configuration information of the SR resource includes some or all of the following parameters: SR user resident factor SR-resisitnf, SR repetition factor SR-NumRepetitionFactor, SR maximum transmission number dsr-TransMax, UE-specific SR configuration information, and fast-tuning SR configuration information;
the SR user resident factor SR-resisitive F is used for indicating the time interval of SR resources on each sub-band in a cell;
the SR repetition factor SR-NumRepetitionFactor is used for indicating the repetition number of the sent SR;
the SR maximum transmission times dsr-TransMax is used for indicating the maximum times of SR transmission;
the UE-specific SR configuration information is a configuration parameter of specific sending scheduling request resources allocated to the user equipment by a network side, and comprises the steps of establishing the UE-specific SR configuration and/or releasing the UE-specific SR configuration, wherein the established UE-specific SR configuration comprises SR resource position information;
The fast scheduling SR configuration information is a configuration parameter of a transmission scheduling request resource pre-allocated by a network side for a user equipment for performing a fast scheduling mode transmission service, and includes establishing a fast scheduling SR configuration and/or releasing the fast scheduling SR configuration, wherein the establishing the fast scheduling SR configuration includes SR resource location information.
In one embodiment, the parameters of the SR configuration cell SchedulingRequestConfig include at least UE-specific SR configuration information and fast-tuning SR configuration information.
In one embodiment, the network side configures SR-subscriber residing factor SR-resisitive f and SR repetition factor SR-numrepetition factor as cell-level parameters, and sends the parameters to the user equipment through system information;
the network configures the SR maximum transmission times dsr-TransMax, the UE-specific SR configuration information and the fast-tuning SR configuration information in the SR configuration element
And transmitting the RRC proprietary signaling message in the schedulingRequestConfig to the user equipment.
In one embodiment, the network side configures SR user residency factor SR-resisitnf, SR repetition number factor SR-NumRepetitionFactor, SR maximum transmission number dsr-TransMax, UE-specific SR configuration information and fast-tuning SR configuration information in the SR configuration cell SchedulingRequestConfig, and sends the SR configuration information to the user equipment through an RRC-specific signaling message.
In one embodiment, the network configures UE-specific SR configuration information and fast-tuning SR configuration information in the SR configuration cell schedule request config and sends the SR configuration information and the fast-tuning SR configuration information to the UE through an RRC-specific signaling message; the UE-specific SR configuration information also comprises an SR user resident factor SR-resisitive F, an SR repetition number factor SR-NumRepetitionFactor and an SR maximum transmission number dsr-TransMax; the fast-tuning SR configuration information also comprises an SR user resident factor SR-resisitive F, an SR repetition number factor SR-NumRepetitionFactor and an SR maximum transmission number dsr-TransMax.
In one embodiment, the SR resource location information includes an SR offset srOffset, which is used to specify an offset of an SR resource location on one subband; or alternatively
The SR resource position information comprises an SR frame offset srFrameOffset and an index C of a code used for transmitting the SR index The SR frame offset srFrameOffset is used to specify the systematic frame offset of SR in the time interval with the length of SR-slidingfx 1s, and the index C of the code used for transmitting SR index For indicating to the user equipment by means of an index the code used for transmitting the SR.
In one embodiment, the SR frame offset srFrameOffset is a user equipment level parameter, and the value range is [0, SR-resisiting f 40-1], where SR-resisiting f is SR-resisiting factor SR-resisiting f;
Index C of the code used for transmitting SR index For the user equipment level parameters, the value range is [0,7]。
In one embodiment, based on the coverage level of the ue, the network side configures a corresponding repetition number map for the ue, where the repetition number of one SR transmission is equal to SR repetition number factor SR-numrepetition factor multiplied by the repetition number map.
In one embodiment, the number of repetitions is mapped to a PRACH repetition number of the coverage class, and the number of repetitions of one SR transmission is equal to an SR repetition number factor SR-numrepetition factor times the PRACH repetition number.
The invention also provides user equipment, which comprises a receiving module and an SR resource scheduling module;
the receiving module is used for receiving SR resource configuration information carried by the network side through signaling information;
the SR resource scheduling module is used for performing scheduling request by using the UE-dedicated SR resource or the fast-scheduling SR resource based on the SR resource configuration information and the scheduling mode indicated by the network side;
the special SR resource of the UE is a specific resource which is allocated by the network side for sending the scheduling request of the user equipment, and the quick SR resource is a resource which is allocated by the network side for sending the scheduling request in advance for the user equipment for carrying out the transmission service in a quick scheduling mode.
The user equipment in the embodiment of the present invention is configured to implement the scheduling request method in the user side in the embodiment of the present invention, and the present embodiment and the following embodiments are in one-to-one correspondence with the scheduling request method in the user side, and for specific description of each embodiment, reference is made to the scheduling request method in the user side, which is not repeated herein.
In one embodiment, when the scheduling manner indicated by the network side is fast scheduling, the user equipment sends an SR on the non-resident sub-band using fast scheduling SR resources;
otherwise, the user equipment uses the UE special SR resource to send SR on the resident sub-band;
wherein the stay sub-band is a sub-band where the user equipment stays through a random access procedure or a sub-band where the user equipment stays according to a handover sub-band signaling instruction at a network side.
In one embodiment, the SR resource configuration information includes some or all of the following parameters: SR user resident factor SR-resisitnf, SR repetition factor SR-NumRepetitionFactor, SR maximum transmission number dsr-TransMax, UE-specific SR configuration information, and fast-tuning SR configuration information;
the SR user resident factor SR-resisitive F is used for indicating the time interval of SR resources on each sub-band in a cell;
The SR repetition factor SR-NumRepetitionFactor is used for indicating the repetition number of the sent SR;
the SR maximum transmission times dsr-TransMax is used for indicating the maximum times of SR transmission;
the UE-specific SR configuration information is a configuration parameter of specific sending scheduling request resources allocated to the user equipment by a network side, and comprises the steps of establishing the UE-specific SR configuration and/or releasing the UE-specific SR configuration, wherein the established UE-specific SR configuration comprises SR resource position information;
the fast scheduling SR configuration information is a configuration parameter of a transmission scheduling request resource pre-allocated by a network side for a user equipment for performing a fast scheduling mode transmission service, and includes establishing a fast scheduling SR configuration and/or releasing the fast scheduling SR configuration, wherein the establishing the fast scheduling SR configuration includes SR resource location information.
In one embodiment, the SR resource location information includes an SR offset srOffset, which is used to specify an offset of an SR resource location on one subband; or alternatively
The SR resource position information comprises an SR frame offset srFrameOffset and an index C of a code used for transmitting the SR index The SR frame offset srFrameOffset is used to specify the systematic frame offset of the SR in the time interval with the SR-slidingfx 1 second as the length, and the index C of the code used for transmitting the SR index For indicating to the user equipment by means of an index the code used for transmitting the SR.
In one embodiment, the SR resource location information includes an SR user dwell factor SR-shiftf and an SR offset srOffset, the SR offset srOffset being used to specify an offset of an SR resource location on one subband; or alternatively
The SR resource position information comprises an SR user resident factor SR-sliding F, an SR frame offset srFrameOffset and an index C of a code used for transmitting the SR index The SR frame offset srFrameOffset is used to specify the systematic frame offset of the SR in the time interval with the SR-slidingfx 1 second as the length, and the index C of the code used for transmitting the SR index For indexing to said user equipmentIndicating the code used to transmit the SR.
In one embodiment, the ue determines the SR resource location according to the physical cell ID, SR-discovery f, and srOffset of the cell in which it is located, and satisfies the following two formulas:
SFN mod(sr-residentF*40)＝a；
C index ＝srOffset mod 8；
wherein SFN is the radio frame number where SR resource is located,
Figure GDA0004074521720000261
for b, when phycelid mod n=0, b=n; when the PHYCELLID mod n is not equal to 0, b=PHYCELLID mod n, where PHYCELLID is the physical cell ID of the cell where the user equipment is located, n is a multiplexing factor, SR-resisiting F is SR-resisiting F, and srOffset is SR offset srOffset.
In one embodiment, the user equipment is according to sr-resident, srFrameOffset and C index To determine the transmit SR resource location, satisfying the following equation:
SFN mod(sr-residentF*40)＝srFrameOffset；
wherein SFN is the radio frame number where SR resource is located, SR-restriction F is SR user resident factor SR-restriction F, srFrameOffset is SR frame offset srFrameOffset, C index Index C of code used for transmitting SR index 。
The invention also provides a system which is characterized by comprising the network equipment in the network equipment and all the optional embodiments thereof and the user equipment in the user equipment and all the optional embodiments thereof.
Finally, the methods of the present application are only preferred embodiments and are not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A method for scheduling request configuration in an orthogonal frequency division multiplexing system, comprising:
the network side configures Scheduling Request (SR) resources for the user equipment through signaling messages corresponding to different scenes of the user equipment, so that the user equipment uses the UE-dedicated SR resources or fast-scheduling SR resources to perform scheduling requests according to the configuration information of the SR resources and a scheduling mode indicated by the network side;
The SR resources comprise UE special SR resources and fast scheduling SR resources, wherein the UE special SR resources are specific scheduling request sending resources allocated for the user equipment by a network side, and the fast scheduling SR resources are scheduling request sending resources allocated in advance for the user equipment for transmitting the service in a fast scheduling mode by the network side;
the configuration information of the SR resource includes some or all of the following parameters: SR user resident factor SR-resisitnf, SR repetition factor SR-NumRepetitionFactor, SR maximum transmission number dsr-TransMax, UE-specific SR configuration information, and fast-tuning SR configuration information;
the SR user resident factor SR-resisitive F is used for indicating the time interval of SR resources on each sub-band in a cell;
the SR repetition factor SR-NumRepetitionFactor is used for indicating the repetition number of the sent SR;
the SR maximum transmission times dsr-TransMax is used for indicating the maximum times of SR transmission;
the UE-specific SR configuration information is a configuration parameter of specific sending scheduling request resources allocated to the user equipment by a network side, and comprises the steps of establishing the UE-specific SR configuration and/or releasing the UE-specific SR configuration, wherein the established UE-specific SR configuration comprises SR resource position information;
The fast scheduling SR configuration information is a configuration parameter of a transmission scheduling request resource pre-allocated by a network side for a user equipment for performing a fast scheduling mode transmission service, and comprises the steps of establishing a fast scheduling SR configuration and/or releasing the fast scheduling SR configuration, wherein the established fast scheduling SR configuration comprises SR resource location information;
the parameter of the SR configuration cell schedulingRequestConfig at least comprises UE-specific SR configuration information and/or fast-tuning SR configuration information;
the network configures an SR user resident factor SR-resisitive F and an SR repetition factor SR-NumRepetitionFactor as cell-level parameters, and sends the cell-level parameters to the user equipment through system information;
the network configures SR maximum transmission times dsr-TransMax, UE special SR configuration information and quick-tuning SR configuration information in the SR configuration cell SchedulingRequestConfig and sends the SR configuration cell SchedulingRequestConfig to the user equipment through RRC special signaling information;
the SR resource location information includes an SR offset srOffset for specifying an offset of an SR resource location on one subband; or alternatively
The SR resource position information comprises an SR frame offset srFrameOffset and an index C of a code used for transmitting the SR index The SR frame offset srFrameOffset is used to specify the systematic frame offset of the SR in the time interval with the SR user resident factor SR-slidable f being 1 second in length, and the index C of the code used for transmitting the SR index For indicating to the user equipment by means of an index the code used for transmitting the SR.
2. The method of claim 1, wherein the different scenarios for the user device include any one or more of the following three scenarios: the user equipment initially accesses the network from an RRC idle state, and triggers the RRC connection reestablishment scene and the network side triggers the RRC connection reconfiguration scene;
correspondingly, the network side configuring SR resources for the ue through signaling messages corresponding to different scenarios of the ue further includes:
when the user equipment initially accesses a network from an RRC idle state, the network side carries an SR configuration cell SchedulingRequestConfig through an RRCConnection setup message and sends the SR configuration cell SchedulingRequestConfig to the user equipment, so that SR resources are configured for the user equipment;
when the user equipment triggers the RRC connection reestablishment scene, the network side carries an SR configuration cell SchedulingRequestConfig through an RRCConnection Reesctable message and sends the SR configuration cell SchedulingRequestConfig to the user equipment, so that SR resources are configured for the user equipment;
when the network side triggers the RRC connection reconfiguration scenario, the network side carries an SR configuration cell SchedulingRequestConfig through an RRCConnection reconfiguration message and sends the SR configuration cell SchedulingRequestConfig to the user equipment, so that SR resources are configured for the user equipment.
3. The method of claim 1, wherein,
the SR frame offset is a user equipment level parameter, the value range is [0, SR-resisitive F is 40-1], wherein SR-resisitive F is an SR user residence factor;
index C of the code used for transmitting SR index For the user equipment level parameters, the value range is [0,7]。
4. The method of claim 1 wherein the network side configures a corresponding repetition number map for the user device based on the coverage class of the user device, the repetition number of one SR transmission being equal to an SR repetition number factor SR-numrepetition factor times the repetition number map.
5. The method of claim 4, wherein the number of repetitions is mapped to a number of PRACH repetitions of the coverage class, the number of repetitions of one SR transmission being equal to an SR repetition factor SR-numrepetition factor times the number of PRACH repetitions.
6. A method for scheduling request configuration in an orthogonal frequency division multiplexing system, comprising:
the user equipment receives scheduling request SR resource configuration information carried by a signaling message by a network side;
scheduling request is carried out by using the special SR resources or the fast SR resources of the UE based on the SR resource configuration information and the scheduling mode indicated by the network side;
The UE special SR resource is a specific resource for sending a scheduling request, which is allocated to the user equipment by a network side, and the fast scheduling SR resource is a resource for sending the scheduling request, which is allocated in advance by the network side for the user equipment for carrying out the transmission service in a fast scheduling mode;
when the scheduling mode indicated by the network side is fast scheduling, the user equipment uses fast scheduling SR resources to send SR on the non-resident sub-band;
otherwise, the user equipment uses the UE special SR resource to send SR on the resident sub-band;
wherein, the resident sub-band is a sub-band where the user equipment resides through a random access process or a sub-band where the user equipment resides according to a switching sub-band signaling instruction of a network side;
the SR resource configuration information includes some or all of the following parameters: SR user resident factor SR-resisitnf, SR repetition factor SR-NumRepetitionFactor, SR maximum transmission number dsr-TransMax, UE-specific SR configuration information, and fast-tuning SR configuration information;
the SR user resident factor SR-resisitive F is used for indicating the time interval of SR resources on each sub-band in a cell;
the SR repetition factor SR-NumRepetitionFactor is used for indicating the repetition number of the sent SR;
The SR maximum transmission times dsr-TransMax is used for indicating the maximum times of SR transmission;
the UE-specific SR configuration information is a configuration parameter of specific sending scheduling request resources allocated to the user equipment by a network side, and comprises the steps of establishing the UE-specific SR configuration and/or releasing the UE-specific SR configuration, wherein the established UE-specific SR configuration comprises SR resource position information;
the fast scheduling SR configuration information is a configuration parameter of a transmission scheduling request resource pre-allocated by a network side for a user equipment for performing a fast scheduling mode transmission service, and comprises the steps of establishing a fast scheduling SR configuration and/or releasing the fast scheduling SR configuration, wherein the established fast scheduling SR configuration comprises SR resource location information;
the SR resource location information includes an SR offset srOffset for specifying an offset of an SR resource location on one subband; or alternatively
The SR resource position information comprises an SR frame offset srFrameOffset and an index C of a code used for transmitting the SR index The SR frame offset srFrameOffset is used to specify the systematic frame offset of the SR in the time interval with the SR user resident factor SR-slidable f being 1 second in length, and the index C of the code used for transmitting the SR index For indicating to the user equipment by means of an index the code used for transmitting the SR.
7. The method of claim 6, wherein the user equipment determines the transmit SR resource location based on the physical cell ID, SR-discovery f, and srOffset of the cell in which it is located, satisfying the following two equations:
SFN mod(sr-residentF*40)＝a；
C index ＝srOffset mod 8；
wherein SFN is the radio frame number where SR resource is located,
Figure FDA0004126525780000051
for b, when phycelid mod n=0, b=n; when the phy licid mod n is not equal to 0, b=phy licid mod n, phy licid is a physical cell ID of a cell where the ue is located, n is a multiplexing factor, SR-resigntf is an SR user resident factor, and srOffset is an SR offset.
8. The method of claim 6, wherein the user equipment is based on sr-resident, srFrameOffset and C index To determine the transmit SR resource location, satisfying the following equation:
SFN mod(sr-residentF*40)＝srFrameOffset；
wherein SFN is the radio frame number where SR resource is located, SR-resisitive F is SR user resident factor, srFrameOffset is SR frame offset, C index An index of the code used for transmitting the SR.
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