WO2022011753A1

WO2022011753A1 - Resource allocation method, resource allocation apparatus, and storage medium

Info

Publication number: WO2022011753A1
Application number: PCT/CN2020/106594
Authority: WO
Inventors: 赵群
Original assignee: 北京小米移动软件有限公司
Priority date: 2020-07-16
Filing date: 2020-08-03
Publication date: 2022-01-20

Abstract

The present disclosure relates to a resource allocation method, a resource allocation apparatus, and a storage medium. The resource allocation method comprises: determining a first resource allocation parameter, with the first resource allocation parameter being used for indicating a first resource, wherein the first resource is used for transmitting a distance measurement reference signal. By means of the present disclosure, a transmission resource can be allocated for a distance measurement reference signal.

Description

Resource allocation method, resource allocation device and storage medium

technical field

The present disclosure relates to the field of communication technologies, and in particular, to a resource allocation method, a resource allocation device, and a storage medium.

Background technique

With the continuous emergence of a new generation of Internet applications, the continuous evolution of wireless communication technology is driven to meet the needs of applications.

Applications and services based on the distance and angle between user devices are currently emerging. By measuring the distance and angle through wireless signals, the wireless communication capability of the user equipment can be effectively utilized, and new user equipment capabilities can be introduced. Terminals and wireless network devices that support ranging function can more conveniently control and operate distance and angle measurement, and can be applied to a variety of commercial and Vertical application scenarios.

With the development of the new generation of 5G mobile communication technology, the technology of using the new wireless (new ratio, NR) cellular communication network uplink and downlink transmission for user equipment positioning was studied in 3GPP Rel-16. However, how to use the NR direct communication link for inter-user ranging has not been discussed.

SUMMARY OF THE INVENTION

To overcome the problems existing in the related art, the present disclosure provides a resource allocation method, a resource allocation device and a storage medium.

According to a first aspect of the embodiments of the present disclosure, there is provided a resource allocation method, including:

A first resource allocation parameter is determined; the first resource allocation parameter is used to indicate a first resource, and the first resource is used for transmitting a ranging reference signal.

In one embodiment, the first resource is at least a part of the resources in the direct communication resource pool.

In an implementation manner, the first resource is at least a part of the resources in the direct connection communication bandwidth part.

In one embodiment, the first resource is at least a part of the specified direct connection bandwidth portion.

In an implementation manner, the first resource allocation parameter includes one or more of the following:

Specify the subcarrier width and the cyclic prefix length; specify the time domain position indicated by the subcarrier width and the cyclic prefix length; the absolute frequency domain position of the frequency domain reference point, and the frequency domain of the first resource relative to the frequency domain reference point offset.

In an embodiment, the first resource is a resource that occurs periodically in the time domain.

In one embodiment, the first resource is a resource that is continuous in the frequency domain.

In an implementation manner, the first resource and the resource used for sending signals by the direct communication link are frequency-division multiplexed and/or time-division multiplexed.

In one embodiment, the first resource is frequency division multiplexed with the physical direct connection feedback channel, and time division multiplexed with the physical direct connection control channel or the physical direct connection shared channel.

In one embodiment, the first resource is time-division multiplexed with the physical direct connection feedback channel, and time-division multiplexed with the physical direct connection control channel or the physical direct connection shared channel.

In one embodiment, a guard interval exists between the first resource and the physical direct connection control channel or the physical direct connection shared channel.

In one embodiment, the resource allocation method further includes: in response to the first resource being overlapped with the resources of the direct-connection communication resource pool in the time unit specified in the direct-connection communication bandwidth part, removing the resources in the direct-connection communication resource pool with The first resource coincides with the resource.

In an embodiment, the direct connection communication resource pool includes the resources in the time unit specified by the direct connection communication bandwidth part, and the resources in the time unit specified by the direct connection communication bandwidth part are different from the first resource. coincide.

The offset of the lowest subcarrier in the designated bandwidth part and the designated frequency position; the bandwidth of the designated bandwidth part; the subcarrier interval and the cyclic prefix length of the designated bandwidth part.

In an embodiment, the ranging reference signal has a signal format, wherein the signal format is associated with at least one of the following parameters: time domain length, frequency domain width, and resource multiplexing mode.

In one embodiment, the ranging reference signal has transmission parameters, wherein the transmission parameters are associated with at least one of the following parameters: time domain length, frequency domain width, and transmission power configuration.

In an implementation manner, the first resource allocation parameter is carried in pre-configuration information, a static instruction or a semi-static instruction.

In one embodiment, the semi-static command includes downlink semi-static signaling or direct-connect semi-static control signaling.

According to a second aspect of the embodiments of the present disclosure, a resource allocation apparatus is provided, including:

The processing unit is configured to determine a first resource allocation parameter; the first resource allocation parameter is used to indicate a first resource, and the first resource is used for transmitting a ranging reference signal.

In an implementation manner, the first resource is frequency-division multiplexed and/or time-division multiplexed with the resources used by the direct-connected communication link to send signals.

In one embodiment, the processing unit is further configured to:

In response to the first resource being overlapped with the resource of the direct-connection communication resource pool in the time unit specified by the direct-connection communication bandwidth portion, the resource in the direct-connection communication resource pool that overlaps with the first resource is removed.

According to a third aspect of the embodiments of the present disclosure, there is provided a resource allocation apparatus, characterized by comprising:

processor; memory for storing processor-executable instructions;

Wherein, the processor is configured to: execute the first aspect or the resource allocation method described in any implementation manner of the first aspect.

According to a fourth aspect of the embodiments of the present disclosure, a non-transitory computer-readable storage medium is provided, and when instructions in the storage medium are executed by a processor, the processor can execute the first aspect or any one of the first aspect The resource allocation method described in the embodiment.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: determining a first resource allocation parameter, and the first resource allocation parameter is used to indicate the first resource for transmitting the ranging reference signal, so that resources can be allocated for the ranging reference signal , to meet the needs of ranging through wireless signals.

It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of a direct connection communication system according to an exemplary embodiment.

Fig. 2 is a flow chart of a resource allocation method according to an exemplary embodiment.

3 is a schematic diagram of frequency division multiplexing of a first resource with a physical direct connection feedback channel and time division multiplexing with a physical direct connection control channel or a physical direct connection shared channel according to an exemplary embodiment of the present disclosure.

FIG. 4 is a schematic diagram of time division multiplexing the first resource with the physical direct connection feedback channel, and time division multiplexing with the physical direct connection control channel or the physical direct connection shared channel according to an exemplary embodiment of the present disclosure.

FIG. 5 is a schematic diagram showing the correspondence between the frequency domain resources used by a ranging reference signal and the frequency domain width of the direct connection communication resource pool according to an exemplary embodiment of the present disclosure.

Fig. 6 shows that according to an exemplary embodiment, the time resources and/or frequency resources used by the ranging reference signal are overlapped with the resources of the direct connection communication resource pool in the specified time unit of the direct connection communication bandwidth part, and the direct connection communication resources are removed. A schematic diagram of the resources in the pool that overlap with the first resource.

Fig. 7 is a diagram showing an example of allocation of a bandwidth portion for direct connection ranging according to an exemplary embodiment.

Fig. 8 is a block diagram of a resource allocation apparatus according to an exemplary embodiment.

Fig. 9 is a block diagram of an apparatus for resource allocation according to an exemplary embodiment.

Fig. 10 is a block diagram of an apparatus for resource allocation according to an exemplary embodiment.

detailed description

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

The resource allocation method provided by the embodiment of the present disclosure can be applied to the direct-connected communication system shown in FIG. 1 . Referring to FIG. 1 , in the scenario of direct communication between directly connected communication devices, the network device configures various transmission parameters for data transmission for the directly connected communication device 1 . The directly connected communication device 1 is used as a data sending end, and the directly connected communication device 2 is used as a data receiving end, and the two perform direct communication. The link for communication between the network device and the directly connected communication device is an uplink and downlink, and the link between the directly connected communication device and the directly connected communication device is a sidelink.

In the present disclosure, the communication scenario of direct communication between directly connected communication devices may also be a terminal-to-device (Device to Device, D2D) communication scenario. The direct-connected communication devices that perform direct communication in the embodiments of the present disclosure may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to wireless modems, as well as various forms of users Equipment (User Equipment, UE), mobile station (Mobile station, MS), terminal (terminal), terminal equipment (Terminal Equipment) and so on. For convenience of description, the embodiments of the present disclosure are described below by taking the direct-connected communication device as the user equipment as an example.

In NR, by configuring or pre-configuring parameters such as the direct connection bandwidth part (Sidelink BWP) and the direct connection communication resource pool (Sidelink resource pool) on the direct connection communication carrier frequency, time resources are allocated for the user equipment to perform direct connection communication. and frequency resources. The direct connection bandwidth part specifies the subcarrier spacing, the Cyclic Prefix (Cyclic Prefix, CP) size and the position of a continuous frequency domain used by the user equipment for direct connection communication. The direct connection communication resource pool is defined at the continuous frequency domain position specified by the direct connection bandwidth part, and further determines the time resource range and frequency resource range that the user equipment can use to send and/or receive the direct connection communication signal. In R16NR, the user equipment can have one direct connection bandwidth part, but can have multiple direct connection communication resource pools.

At present, the physical layer channels in the NR direct communication system include the Physical Sidelink Broadcast Channel (PSBCH), the Physical Sidelink Share Channel (PSSCH), and the Physical Sidelink Control Channel (Physical Sidelink Control). Channel, PSCCH) and Physical Sidelink Feedback Channel (PSFCH); physical layer reference signals include Primary Sidelink Synchronization Signal (PSSS), Secondary Sidelink Synchronization Signal (SSSS) ), demodulation reference signal (Demodulation Reference Signal, DMRS), channel state indication reference signal (Channel-state information Reference Signal, CSI-RS), phase modulation reference signal (Phase Tracking Reference Signal, PT-RS) and so on. Since the existing NR direct connection communication system does not consider the requirement of ranging through the direct connection signal, due to different design purposes, the existing channels or reference signals in the NR direct connection communication system are not suitable for ranging use.

In view of this, an embodiment of the present disclosure provides a resource allocation method, which determines a resource allocation parameter for indicating transmission of a ranging reference signal resource, and realizes the allocation of the ranging reference signal resource.

In the embodiments of the present disclosure, for convenience of description, the resource used for transmitting the ranging reference signal is referred to as the first resource. The resource allocation parameter for indicating the first resource is referred to as the first resource allocation parameter.

Fig. 2 is a flow chart of a resource allocation method according to an exemplary embodiment. As shown in Fig. 2, the resource allocation method includes the following steps.

In step S11, a first resource allocation parameter is determined, where the first resource allocation parameter is used to indicate a first resource, and the first resource is used for transmitting a ranging reference signal.

In the embodiment of the present disclosure, the first resource may be a frequency resource, a time resource, or a time resource and a frequency resource.

In an implementation manner of the embodiment of the present disclosure, the time resource and/or frequency resource used by the ranging reference signal is indicated in a static or semi-static manner. Wherein, in an example, the first resource allocation parameter is carried in pre-configuration information, a static instruction or a semi-static instruction. Wherein, the semi-static command includes downlink semi-static signaling, for example, using the network equipment downlink semi-static signaling to configure the time resources and/or frequency resources used by the ranging reference signal. Or the semi-static command includes direct-connection semi-static control signaling, for example, the direct-connection semi-static control signaling is used to configure the time resources and/or frequency resources used by the ranging reference signal. In another example, when the user equipment is outside the coverage of the cellular network, the configuration of time resources and/or frequency resources used by the ranging reference signal may also be determined by using preconfigured information preconfigured on the user equipment.

Embodiments of the present disclosure The resource allocation method involved in the embodiments of the present disclosure will be described below in combination with practical applications.

In one embodiment, the first resource is at least a part of the resources in the direct communication resource pool. Among them, by specifying part of the time resources and/or frequency resources in the direct connection communication resource pool for the transmission of the ranging reference signal, the existing direct connection communication design can be reused to the maximum extent, but the transmission bandwidth of the ranging reference signal can be selected Restricted by the existing direct communication resource pool, the ranging performance may be affected.

In another implementation manner, the first resource is at least a part of the resources in the direct connection communication bandwidth part. Indicating a part of the time resources and/or frequency resources on the direct-connected BWP used for direct-connection communication is used for transmitting the ranging reference signal, which is more conducive to designing a new ranging reference signal, giving full play to the role of the ranging signal and improving the ranging accuracy. But more protocol changes and implementation complexity are required. In the embodiment of the present disclosure, the time resource and/or the frequency resource may not belong to any direct communication resource pool.

In yet another embodiment, the first resource is at least a part of the resources of the designated direct connection bandwidth portion. The configuration of the first resource is all the resources of the specified direct connection bandwidth part; wherein the first resource can allocate a separate bandwidth part for direct connection ranging for the transmission of the ranging reference signal, which is more conducive to designing a new ranging reference signal, give full play to the role of the ranging reference signal and improve the ranging accuracy. The first resource may also be a part of the specified direct connection bandwidth portion.

In another embodiment, the first resource allocation parameter directly indicates the subcarrier width and the CP length used for the direct connection ranging signal transmission; the latter may also directly indicate the time domain position of the first resource determined according to the subcarrier width and length. ; or, directly indicating the absolute frequency domain position of the frequency domain reference point, and indicating the frequency domain offset of the first resource relative to the frequency domain reference point. In other words, the first resource allocation parameters include one or more of the following: a specified subcarrier width and a cyclic prefix length; a specified time domain position indicated by the subcarrier width and cyclic prefix length; an absolute frequency domain position of the frequency domain reference point, and all frequency domain offset of the first resource relative to the frequency domain reference point.

In an implementation manner of the embodiment of the present disclosure, the specified time resources and/or frequency resources are configured through pre-configuration or downlink control signaling.

The resources configured for the designated time resources and/or frequency resources will be described below respectively.

First, it is described that the first resource is a part of the resource in the direct connection communication resource pool, and the time resource and/or frequency resource for transmitting the ranging reference signal.

In this embodiment of the present disclosure, some time resources and/or frequency resources are designated in the direct connection resource pool for use in transmitting ranging reference signals. Among them, in the embodiment of the present disclosure, the resources used for other direct connection physical layer channels and signals transmitted in the direct connection resource pool are different from the resources used for transmitting ranging reference signals. Alternatively, it can also be understood that other directly connected physical layer channels and signals transmitted in the direct connection resource pool do not use this part of the time resources and/or frequency resources used by the ranging reference signal.

In this embodiment of the present disclosure, the first resource may be a designated resource that occurs periodically in the time domain. Wherein, the first resource allocation parameter used to indicate the first resource that periodically appears in the time domain may include the value of the time domain period, the start position of the time domain period, and the specific time resource size and/or One or more of the locations.

The unit of the time domain period of the first resource involved in the embodiment of the present disclosure may be a time unit such as a frame, a subframe, a time slot, or a time domain symbol, or may be a unit such as a second, a millisecond, or a microsecond. When the cycle unit is a time unit, it can be defined on a physical time unit or a logical time unit.

In an example, when configuring the value of the time domain period in the embodiment of the present disclosure, the time unit belonging to the directly connected resource pool is defined as a set of logical time units, and the value of the logical period is defined on the set of logical time units. For example, a set of 10 consecutive physical time units {n,n+1,…,n+10}, where {n,n+2,n+4,…,n+10} belong to the directly connected resource pool, then if the period The value is 4, starting from time unit n, if the period unit is a physical time unit, the resource includes a time unit set {n, n+4, n+8}. Whereas, if the period unit is a logical time unit, the resource includes a set of time units {n, n+8}.

In an example, when configuring the start position of the time domain period in the embodiment of the present disclosure, the start time unit position of the first period after the predefined time unit serial number may be indicated.

In an example, when configuring the specific time resource size and/or position of a time domain period within a period in the embodiment of the present disclosure, the following methods may be used:

For example, the period length is N time units, and an N-bit bitmap may be used to indicate which time units can be used to transmit the ranging reference signal. Here, the N time units and the time unit indicating the period value may be the same or different. For example, the period is 4 slots, each slot contains 14 time domain symbols, and a ranging reference signal transmission occupies at least 2 OFDM symbols, then a 28-bit bitmap can be used to indicate the time that can be used for transmitting the ranging reference signal. Domain notation. Alternatively, the specific time resource can also be indicated by a method of indicating the starting position in the distance period plus the length of the time domain. For example, the period is 4 time slots (slots), each slot contains 14 time domain symbols, and one ranging reference signal transmission occupies at least 2 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols. In an example of the present disclosure, a mapping table between a start position plus a time domain length and a configuration sequence number is configured, as shown in Table 1 below.

Table 1

Configuration serial number

starting point

duration

00	第一个slot的第10个symbolThe 10th symbol of the first slot	4个symbol4 symbols
11	第一个slot的第12个symbolThe 12th symbol of the first slot	2个symbol2 symbols
。。。. . .	。。。. . .	。。。. . .

Wherein, by indicating the configuration sequence number, the size and starting position of the specific time resource can be determined, and then the configuration of the first resource can be performed.

In this embodiment of the present disclosure, the first resource may be a continuous designated resource in the frequency domain.

Among them, the broadband of the ranging reference signal in the frequency domain has a great influence on the accuracy of ranging. Using a continuous frequency resource to transmit the ranging signal can improve the accuracy of ranging and reduce the complexity of ranging signal processing. In the embodiment of the present disclosure, the first resource allocation parameter corresponding to the consecutive designated resources in the frequency domain may include a frequency domain starting position and a frequency domain width. Wherein, the starting position of the frequency domain and the width of the frequency domain may be indicated by independent information domains, or may be indicated by one information domain. The granularity of the frequency domain indication may be subcarriers, physical resource blocks (PRBs), or multiple consecutive PRB sets.

Further, the ranging reference signal has a signal format, wherein the ranging reference signals of different signal formats may use different generation sequences, have different frequency domain widths and time domain lengths, and have different resource multiplexing methods, so the present disclosure In the embodiment, the signal format of the ranging reference signal has a corresponding relationship with one or more of the length in the time domain, the width in the frequency domain, and the resource multiplexing manner.

Furthermore, the ranging reference signal has transmission parameters. The transmission parameters may include the multiplexing factor of the ranging reference signal, the generated sequence number, the possible frequency domain width/time domain length, transmission power configuration, etc. In the embodiment of the present disclosure, the transmission parameter of the ranging reference signal has a corresponding relationship with one or more of the time domain length, frequency domain width, and transmission power configuration.

In this embodiment of the present disclosure, different ranging reference signals may have different signal formats and/or transmission parameters.

Further, the first resource used for transmitting the ranging reference signal in the embodiment of the present disclosure may be frequency-division multiplexed and/or time-division multiplexed with the resource used for transmitting the signal through the direct communication link. It may also be the first resource used for transmitting the ranging reference signal, and may be frequency-division multiplexed and/or time-division multiplexed with the resources used by the direct communication link to transmit other physical layer channels.

In one embodiment, the first resource is frequency division multiplexed with the physical direct connection feedback channel, and time division multiplexed with the physical direct connection control channel or the physical direct connection shared channel. 3 is a schematic diagram of frequency division multiplexing of a first resource with a physical direct connection feedback channel and time division multiplexing with a physical direct connection control channel or a physical direct connection shared channel according to an exemplary embodiment of the present disclosure. Referring to FIG. 3 , the first resource for transmitting the ranging reference signal is frequency-division multiplexed with the Physical Direct Feedback Channel (PSFCH), and time-division multiplexed with the Physical Direct Connect Control Channel (PSCCH)/Physical Direct Shared Channel (PSSCH) . Among them, the ranging reference signal generally occupies a short time length in the time domain, and occupies a wider frequency domain bandwidth in the frequency domain, so that better timing accuracy can be obtained. The physical direct connection feedback channel occupies a length of 2 symbols, while the physical direct connection control channel or the physical direct connection shared channel generally occupies more time domain symbols. Moreover, the length of each direct connection feedback information is only one PRB, which is much less than the frequency domain resources occupied by direct connection data and control, and is more suitable for frequency division multiplexing with ranging signals.

In the embodiment of the present disclosure, there is a guard interval between the time-division multiplexed physical direct connection control channel/physical direct connection shared channel and the resource for transmitting the ranging reference signal, that is, the first resource and the physical direct connection control channel/physical direct connection There is a guard interval between shared channels. In the embodiment of the present disclosure, the guard interval is set for the time when the user equipment switches the transceiver. The user equipment may need to receive a ranging reference signal after sending the physical direct connection control channel/physical direct connection shared channel, or need to send a ranging reference signal after receiving the physical direct connection control channel/physical direct connection shared channel.

In another implementation manner of the embodiment of the present disclosure, the first resource is time-division multiplexed with the physical direct-connection feedback channel, and time-division multiplexed with the physical direct-connection control channel/physical direct-connection shared channel. 4 is a schematic diagram of time division multiplexing the first resource with the physical direct connection feedback channel and time division multiplexing with the physical direct connection control channel/physical direct connection shared channel according to an exemplary embodiment of the present disclosure. Referring to FIG. 4 , the time resources and frequency resources for transmitting the ranging reference signal are time division multiplexed with the physical direct connection control channel/physical direct connection shared channel, and the physical direct connection feedback channel. In this way, the ranging reference signal can be transmitted using a time domain length different from that of the physical direct connection feedback channel, eg, 1 symbol. Moreover, the ranging reference signal can also be transmitted using a wider bandwidth.

Next, the time resource and/or frequency resource for transmitting the ranging reference signal when the first resource is a part of the direct connection communication bandwidth part will be described.

In this embodiment of the present disclosure, a portion of the time resources and/or frequency resources are indicated on the portion of the direct connection communication bandwidth used for the direct connection communication to be used for transmitting the ranging reference signal. The part of the time resources and/or frequency resources indicated on the direct connection communication bandwidth part may not belong to any direct connection communication resource pool.

In the embodiment of the present disclosure, the specified time resources and/or frequency resources are configured through pre-configuration or downlink control signaling. Wherein, when configuring part of the time resources and/or frequency resources indicated on the direct connection communication bandwidth part, the information field configured for the first resource allocation parameter and the part of the time resources and/or the frequency resources indicated in the direct connection communication resource pool are configured. The information fields when configuring frequency resources are similar. Similarities are not described in detail in the embodiments of the present disclosure, and only differences are described below.

The difference is that the resources configured when the part of the time resources and/or frequency resources indicated in the direct connection communication resource pool are configured belong to a given direct connection communication resource pool on the direct connection communication bandwidth part, The resources when configuring part of the time resources and/or frequency resources indicated on the direct connection communication bandwidth part belong to the direct connection communication bandwidth part.

In an implementation manner, in the embodiment of the present disclosure, the frequency domain resource width used by the ranging reference signal may exceed the frequency domain width of the direct connection communication resource pool. FIG. 5 is a schematic diagram showing the correspondence between the frequency domain resources used by a ranging reference signal and the frequency domain width of the direct connection communication resource pool according to an exemplary embodiment of the present disclosure. Referring to FIG. 5 , the frequency domain resource width used by the ranging reference signal indicated in the direct connection communication bandwidth part exceeds the frequency domain width of the direct connection communication resource pool 1 and the direct connection communication resource pool 2 .

In the embodiment of the present disclosure, the first resource may or may not overlap with the resources of the direct-connection communication resource pool in the time unit specified in the direct-connection communication bandwidth portion. In an implementation manner of the embodiment of the present disclosure, in response to the first resource being overlapped with the resource of the direct connection communication resource pool in the time unit specified in the direct connection communication bandwidth portion, the resource that overlaps with the first resource in the direct connection communication resource pool is removed. That is, when the time resources and/or frequency resources used by the ranging reference signal overlap with the direct connection resource pool, the direct connection resource pool should remove some resources that overlap with the time resources and/or frequency resources used by the ranging reference signal. Fig. 6 shows that according to an exemplary embodiment, the time resources and/or frequency resources used by the ranging reference signal are overlapped with the resources of the direct connection communication resource pool in the specified time unit of the direct connection communication bandwidth part, and the direct connection communication resources are removed. A schematic diagram of the resources in the pool that overlap with the first resource. As shown in FIG. 6 , the direct connection communication resource pool originally occupies the time domain resources of 14 symbols on the entire time slot (according to the protocol, the last symbol is the guard interval). However, when the time resources and/or frequency resources used by the ranging reference signal occupy the resources of the last two symbols, only the remaining 12 symbols can be used in the direct communication resource pool in the time slot.

Thirdly, it is explained that the first resource is the resource of the designated direct connection bandwidth part, and the time resource and/or the frequency resource for transmitting the ranging reference signal.

In the embodiment of the present disclosure, a separate bandwidth portion for direct-connect ranging is allocated for transmitting the direct-connect ranging signal. The transmission of the ranging reference signal may use a different CP length, sub-carrier width, and transmission bandwidth than the direct-connect communication transmission.

In an implementation manner of the embodiment of the present disclosure, a part of time resources may be designated on the bandwidth part used for direct connection ranging for use in direct connection ranging, and it may also be understood that the first resource is a separate resource used for direct connection ranging. Part of the resource in the bandwidth section.

Wherein, when the first resource is the resource of the designated direct connection bandwidth part, when the designated time resource and/or frequency resource in the bandwidth part used for direct connection ranging is configured through pre-configuration or downlink control signaling, the designated time The configuration of resources and/or frequency resources is similar to the information field when configuring part of the time resources and/or frequency resources indicated on the direct connection communication bandwidth part. Similarities are not described in detail in the embodiments of the present disclosure, and only differences are described below.

The difference is that the time-frequency parameters of the bandwidth part used for direct-connect ranging need to be used for configuration. For example, the subcarrier interval of the direct connection communication bandwidth part is 30KHz, and the bandwidth is 20MHz. The subcarrier spacing of the bandwidth part used for direct connection ranging may be 60KHz and the bandwidth is 100MHz.

Wherein, the configuration of the bandwidth part used for direct connection ranging is similar to other bandwidth parts, including at least one or more of the following: the offset of the lowest subcarrier of the specified bandwidth part and the specified frequency position; the bandwidth of the specified bandwidth part; and Specifies the subcarrier spacing and cyclic prefix length for the bandwidth part.

Fig. 7 is a diagram showing an example of allocation of a bandwidth portion for direct connection ranging according to an exemplary embodiment. Referring to FIG. 7 , the bandwidth portion used for direct-connection ranging may occupy a bandwidth range that exceeds the direct-connection communication bandwidth portion. The user equipment needs to set aside a necessary handover guard interval between the direct connection communication and the direct connection ranging transmission/reception.

Thirdly, the case where the first resource allocation parameter directly indicates the first resource will be described.

In one embodiment, the first resource allocation parameter directly indicates the subcarrier width and CP length used for the transmission of the ranging reference signal; and indicates the time domain position of the first resource according to the indicated subcarrier width and CP length. In one embodiment, the first resource allocation parameter may directly indicate the absolute frequency domain position of the frequency domain reference point, and indicate the frequency domain offset of the first resource relative to the frequency domain reference point.

The implementation process of directly indicating the first resource used by the ranging reference signal in the embodiment of the present disclosure is similar to the implementation process in which the first resource is at least a part of the resources in the directly connected specified bandwidth part, the difference is that the first resource directly indicates the first resource. The time domain and/or frequency domain location of the resource, so the similarities are not described in detail in this embodiment of the present disclosure.

In the resource allocation method provided by the embodiments of the present disclosure, by allocating some resources in the direct-connection communication resource pool as the first resource for transmitting the ranging reference signal, the existing direct-connection communication design can be reused to the maximum extent, but the ranging The selection of the transmission bandwidth of the reference signal is limited by the existing direct communication resource pool, which may affect the performance of ranging. However, by allocating part of the resources in the direct connection communication bandwidth part as the first resource for transmitting the ranging reference signal, or by allocating resources dedicated to the designated communication bandwidth part for transmitting the ranging reference signal, it is more conducive to design a new direct connection. Connect the ranging reference signal to give full play to the role of the ranging reference signal to improve the ranging accuracy, but it requires more protocol changes and implementation complexity.

In the resource allocation method provided by the embodiments of the present disclosure, by allocating the first resource allocation parameter used to indicate the first resource for transmitting the ranging reference signal, the transmission resource can be allocated for the ranging reference signal, and further, the transmission resources can be allocated for the ranging reference signal, and the Direct ranging provides the possibility to meet the needs of ranging via wireless signals.

Based on the same concept, an embodiment of the present disclosure also provides a resource allocation apparatus.

It can be understood that, in order to implement the above-mentioned functions, the resource allocation apparatus provided by the embodiments of the present disclosure includes corresponding hardware structures and/or software modules for executing each function. Combining with the units and algorithm steps of each example disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of the embodiments of the present disclosure.

Fig. 8 is a block diagram of a resource allocation apparatus according to an exemplary embodiment. Referring to FIG. 8 , the resource allocation apparatus 100 includes a processing unit 101 . The processing unit 101 is configured to determine the first resource allocation parameter. The first resource allocation parameter is used to indicate the first resource, and the first resource is used to transmit the ranging reference signal.

In one embodiment, the first resource is at least a part of the resources in the direct connection communication bandwidth part.

In one embodiment, the first resource is a resource that occurs periodically in the time domain.

In an implementation manner, the first resource and the resource used for the signal sent by the direct communication link are frequency-division multiplexed and/or time-division multiplexed.

In one embodiment, the first resource is time division multiplexed with the physical direct connection feedback channel, and time division multiplexed with the physical direct connection control channel or the physical direct connection shared channel.

In one embodiment, the processing unit 101 is further configured to: in response to the first resource being overlapped with the resource of the direct connection communication resource pool in the time unit specified in the direct connection communication bandwidth part, remove the overlapped resource with the first resource in the direct connection communication resource pool. Resources.

In one embodiment, the first resource allocation parameter includes one or more of the following:

Specifies the offset of the lowest subcarrier in the specified bandwidth portion from the specified frequency position. Specifies the bandwidth of the bandwidth section. Specifies the subcarrier spacing and cyclic prefix length for the bandwidth part.

In one embodiment, the ranging reference signal has a signal format, wherein the signal format has a corresponding relationship with one or more of the length of the time domain, the width of the frequency domain, and the resource multiplexing manner.

In one embodiment, the ranging reference signal has transmission parameters, wherein the transmission parameters have a corresponding relationship with one or more of the time domain length, frequency domain width, and transmission power configuration.

In one embodiment, the semi-static command includes downlink semi-static signaling or direct connection semi-static control signaling.

Regarding the apparatus in the above-mentioned embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be described in detail here.

Fig. 9 is a block diagram of an apparatus 200 for resource allocation according to an exemplary embodiment. For example, apparatus 200 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.

9, the apparatus 200 may include one or more of the following components: a processing component 202, a memory 204, a power component 206, a multimedia component 208, an audio component 210, an input/output (I/O) interface 212, a sensor component 214, and communication component 216 .

The processing component 202 generally controls the overall operation of the device 200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 202 may include one or more processors 220 to execute instructions to perform all or some of the steps of the methods described above. Additionally, processing component 202 may include one or more modules that facilitate interaction between processing component 202 and other components. For example, processing component 202 may include a multimedia module to facilitate interaction between multimedia component 208 and processing component 202.

Memory 204 is configured to store various types of data to support operation at device 200 . Examples of such data include instructions for any application or method operating on the device 200, contact data, phonebook data, messages, pictures, videos, and the like. Memory 204 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

Power components 206 provide power to various components of device 200 . Power components 206 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to device 200 .

The multimedia component 208 includes a screen that provides an output interface between the device 200 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 208 includes a front-facing camera and/or a rear-facing camera. When the apparatus 200 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.

Audio component 210 is configured to output and/or input audio signals. For example, audio component 210 includes a microphone (MIC) that is configured to receive external audio signals when device 200 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 204 or transmitted via communication component 216 . In some embodiments, the audio component 210 also includes a speaker for outputting audio signals.

The I/O interface 212 provides an interface between the processing component 202 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.

Sensor assembly 214 includes one or more sensors for providing status assessments of various aspects of device 200 . For example, the sensor assembly 214 can detect the open/closed state of the device 200, the relative positioning of components, such as the display and keypad of the device 200, and the sensor assembly 214 can also detect a change in the position of the device 200 or a component of the device 200 , the presence or absence of user contact with the device 200 , the orientation or acceleration/deceleration of the device 200 and the temperature change of the device 200 . Sensor assembly 214 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 214 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 216 is configured to facilitate wired or wireless communication between apparatus 200 and other devices. Device 200 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 216 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 216 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, apparatus 200 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as a memory 204 including instructions, executable by the processor 220 of the apparatus 200 to perform the method described above. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

FIG. 10 is a block diagram of an apparatus 300 for resource allocation according to an exemplary embodiment. For example, the apparatus 300 may be provided as a server. 3, apparatus 300 includes a processing component 322, which further includes one or more processors, and a memory resource, represented by memory 332, for storing instructions executable by processing component 322, such as an application program. An application program stored in memory 332 may include one or more modules, each corresponding to a set of instructions. Additionally, the processing component 322 is configured to execute instructions to perform the above-described methods.

Device 300 may also include a power supply assembly 326 configured to perform power management of device 300 , a wired or wireless network interface 350 configured to connect device 300 to a network, and an input output (I/O) interface 352 . Device 300 may operate based on an operating system stored in memory 332, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or the like.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as memory 332 including instructions, executable by processing component 322 of apparatus 300 to accomplish the above-described method. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

It should be further understood that in the present disclosure, "plurality" refers to two or more, and other quantifiers are similar. "And/or", which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone. The character "/" generally indicates that the associated objects are an "or" relationship. The singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

It is further understood that the terms "first", "second", etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish the same type of information from one another, and do not imply a particular order or level of importance. In fact, the expressions "first", "second" etc. are used completely interchangeably. For example, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information, without departing from the scope of the present disclosure.

It is further to be understood that, although the operations in the embodiments of the present disclosure are described in a specific order in the drawings, it should not be construed as requiring that the operations be performed in the specific order shown or the serial order, or requiring Perform all operations shown to obtain the desired result. In certain circumstances, multitasking and parallel processing may be advantageous.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or techniques in the technical field not disclosed by the present disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

A resource allocation method, comprising:

determining a first resource allocation parameter;

The first resource allocation parameter is used to indicate a first resource, and the first resource is used to transmit a ranging reference signal.
The resource allocation method according to claim 1, wherein the first resource is at least a part of resources in a direct connection communication resource pool.
The resource allocation method according to claim 1, wherein the first resource is at least a part of the resources in the direct connection communication bandwidth part.
The resource allocation method according to claim 1, wherein the first resource is at least a part of the specified direct connection bandwidth part.
The resource allocation method according to claim 1, wherein the first resource allocation parameter comprises one or more of the following:

Specify the subcarrier width and cyclic prefix length;

Specify the time domain position indicated by the subcarrier width and cyclic prefix length;

The absolute frequency domain position of the frequency domain reference point, and the frequency domain offset of the first resource relative to the frequency domain reference point.
The resource allocation method according to any one of claims 2 to 5, wherein the first resource is a resource that occurs periodically in the time domain.
The resource allocation method according to any one of claims 2 to 5, wherein the first resource is a resource that is continuous in the frequency domain.
The resource allocation method according to any one of claims 2 to 5, wherein the first resource is frequency-division multiplexed and/or time-division-multiplexed with a resource used by the direct communication link to send a signal.
The resource allocation method according to claim 8, wherein the first resource is frequency division multiplexed with a physical direct connection feedback channel, and time division multiplexed with a physical direct connection control channel or a physical direct connection shared channel.
The resource allocation method according to claim 8, wherein the first resource is time-division multiplexed with a physical direct connection feedback channel, and time-division multiplexed with a physical direct connection control channel or a physical direct connection shared channel.
The resource allocation method according to claim 2 or 10, wherein a guard interval exists between the first resource and a physical direct connection control channel or a physical direct connection shared channel.
The resource allocation method according to claim 3, wherein the method further comprises:

In response to the first resource being overlapped with the resource of the direct-connection communication resource pool in the time unit specified by the direct-connection communication bandwidth portion, the resource in the direct-connection communication resource pool that overlaps with the first resource is removed.
The resource allocation method according to claim 4, wherein the first resource allocation parameter includes one or more of the following:

the offset of the lowest subcarrier of the specified bandwidth part and the specified frequency position;

the bandwidth of the specified bandwidth portion;

The subcarrier spacing and cyclic prefix length of the specified bandwidth portion.
The resource allocation method according to claim 1, wherein the ranging reference signal has a signal format, wherein the signal format is associated with one or more of a time domain length, a frequency domain width, and a resource multiplexing manner. have a corresponding relationship.
The resource allocation method according to claim 1 or 14, wherein the ranging reference signal has a transmission parameter, wherein the transmission parameter is related to one or more of a time domain length, a frequency domain width, and a transmission power configuration. have a corresponding relationship.
The resource allocation method according to claim 1, wherein the first resource allocation parameter is carried in pre-configuration information, a static instruction or a semi-static instruction.
The resource allocation method according to claim 16, wherein the semi-static command comprises downlink semi-static signaling or direct connection semi-static control signaling.
A resource allocation device, comprising:

a processing unit configured to determine a first resource allocation parameter;

The first resource allocation parameter is used to indicate a first resource, and the first resource is used to transmit a ranging reference signal.
A resource allocation device, comprising:

processor;

memory for storing processor-executable instructions;

Wherein, the processor is configured to: execute the resource allocation method according to any one of claims 1 to 17.
A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by a processor, enable the processor to execute the resource allocation method of any one of claims 1 to 17.