Resource allocation method, resource allocation device, and storage medium

Abstract

The present disclosure relates to a resource allocation method, a resource allocation device and a storage medium. The resource allocation method comprises: 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. Through the present disclosure, the transmission resource can be allocated for the ranging reference signal.

Description

[0001] This application is a divisional application of the application with the application date of August 3, 2020, the application number of 202080001870.4, and the invention patent application name of "resource allocation method, resource allocation device and storage medium". TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of communication, and particularly relates to a resource allocation method, a resource allocation device and a storage medium. BACKGROUND

[0003] With the continuous emergence of new generation Internet applications, wireless communication technology is constantly evolving to meet the needs of applications.

[0004] Current applications and services based on the distance and angle between user equipment are emerging. By measuring the distance and angle through wireless signals, the wireless communication capabilities of user equipment can be effectively utilized, and new user equipment capabilities can be introduced. Terminals and wireless network devices that support ranging functions can more conveniently control and operate distance and angle measurements, and can be applied to various commercial and vertical application scenarios, including product display, smart home, smart city, intelligent transportation, intelligent retail, etc.

[0005] With the development of new generation 5G mobile communication technology, in 3GPP Rel-16, techniques for user equipment positioning using uplink and downlink transmission on a new radio (NR) cellular communication network are studied. However, how to use the NR direct communication link for inter-user ranging has not been discussed. SUMMARY

[0006] To overcome the problems in the related art, the present disclosure provides a resource allocation method, a resource allocation device and a storage medium.

[0007] According to a first aspect of an embodiment of the present disclosure, a resource allocation method is provided, comprising:

[0008] 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.

[0009] In an embodiment, the first resource is at least part of the resources in a direct communication resource pool.

[0010] In an embodiment, the first resource is at least part of the resources in a direct communication bandwidth part.

[0011] In an embodiment, the first resource is at least part of the resources in a specified direct communication bandwidth part.

[0012] In an embodiment, the first resource allocation parameter comprises one or more of the following:

[0013] a specified subcarrier width and a specified cyclic prefix length; a specified time domain location of the subcarrier width and the cyclic prefix length; an absolute frequency domain location of a frequency domain reference point, and a frequency domain offset of the first resource relative to the frequency domain reference point.

[0014] In an embodiment, the first resource is a resource periodically occurring in time domain.

[0015] In an embodiment, the first resource is a resource continuously occurring in frequency domain.

[0016] In an embodiment, the first resource is frequency division multiplexed and / or time division multiplexed with a resource used for transmitting the sidelink communication link signal.

[0017] In an embodiment, the first resource is frequency division multiplexed with a physical sidelink feedback channel and time division multiplexed with a physical sidelink control channel or a physical sidelink shared channel.

[0018] In an embodiment, the first resource is time division multiplexed with a physical sidelink feedback channel and time division multiplexed with a physical sidelink control channel or a physical sidelink shared channel.

[0019] In an embodiment, there is a guard interval between the first resource and the physical sidelink control channel or the physical sidelink shared channel.

[0020] In an embodiment, the resource allocation method further comprises: in response to the first resource coinciding with a resource of a sidelink communication resource pool on a sidelink communication bandwidth part specified time unit, removing the resource of the sidelink communication resource pool that coincides with the first resource.

[0021] In an embodiment, the sidelink communication resource pool comprises a resource on the sidelink communication bandwidth part specified time unit, and the resource on the sidelink communication bandwidth part specified time unit does not coincide with the first resource.

[0022] In an embodiment, the first resource allocation parameter comprises one or more of the following:

[0023] an offset of a specified bandwidth part lowest subcarrier from a specified frequency location; a bandwidth of the specified bandwidth part; a subcarrier spacing and a cyclic prefix length of the specified bandwidth part.

[0024] 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: a time domain length, a frequency domain width, a resource multiplexing manner.

[0025] In an embodiment, the ranging reference signal has a transmission parameter, wherein the transmission parameter is associated with at least one of: a time domain length, a frequency domain width, a transmission power configuration.

[0026] In an embodiment, the first resource allocation parameter is carried in pre-configuration information, static instruction or semi-static instruction.

[0027] In an embodiment, the semi-static instruction comprises downlink semi-static signaling or sidelink semi-static control signaling.

[0028] According to a second aspect of embodiments of the present disclosure, a resource allocation apparatus is provided, comprising:

[0029] a processing unit configured to determine a first resource allocation parameter; the first resource allocation parameter is used to indicate a first resource, the first resource is used to transmit a ranging reference signal.

[0030] In an embodiment, the first resource is at least part of a resource in a sidelink communication resource pool.

[0031] In an embodiment, the first resource is at least part of a resource in a sidelink communication bandwidth part.

[0032] In an embodiment, the first resource is at least part of a resource in a specified sidelink bandwidth part.

[0033] In an embodiment, the first resource is a resource periodically occurring in time domain.

[0034] In an embodiment, the first resource is a resource continuously in frequency domain.

[0035] In an embodiment, the first resource is frequency division multiplexed and / or time division multiplexed with a resource used for transmitting a sidelink communication link signal.

[0036] In an embodiment, the first resource is frequency division multiplexed with a physical sidelink feedback channel and time division multiplexed with a physical sidelink control channel or a physical sidelink shared channel.

[0037] In an embodiment, the first resource is time division multiplexed with a physical sidelink feedback channel and time division multiplexed with a physical sidelink control channel or a physical sidelink shared channel.

[0038] In an embodiment, a guard interval exists between the first resource and a physical sidelink control channel or a physical sidelink shared channel.

[0039] In an embodiment, the processing unit is further configured to:

[0040] remove, in response to the first resource coinciding with resources of the sidelink communication resource pool on the sidelink communication bandwidth part designated time unit, resources of the sidelink communication resource pool that coincide with the first resource.

[0041] In an embodiment, the first resource allocation parameter comprises one or more of the following:

[0042] an offset of a lowest subcarrier of the designated bandwidth part to a designated frequency location, a bandwidth of the designated bandwidth part, a subcarrier spacing and a cyclic prefix length of the designated bandwidth part.

[0043] 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: a time domain length, a frequency domain width, a resource multiplexing manner.

[0044] In an embodiment, the ranging reference signal has a transmission parameter, wherein the transmission parameter is associated with at least one of the following parameters: a time domain length, a frequency domain width, a transmission power configuration.

[0045] In an embodiment, the first resource allocation parameter is carried in pre-configuration information, static instruction or semi-static instruction.

[0046] In an embodiment, the semi-static instruction comprises downlink semi-static signaling or sidelink semi-static control signaling.

[0047] According to a third aspect of embodiments herein, there is provided a resource allocation apparatus, comprising:

[0048] a processor, and a memory storing processor-executable instructions;

[0049] The processor is configured to perform the resource allocation method according to the first aspect or any one of the embodiments of the first aspect.

[0050] According to a fourth aspect of embodiments herein, there is provided a non-transitory computer readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the resource allocation method according to the first aspect or any one of the embodiments of the first aspect.

[0051] The technical solutions provided by the embodiments of the disclosure can have the following beneficial effects: the first resource allocation parameter is determined, and the first resource allocation parameter is used to indicate the first resource for transmitting the ranging reference signal, so that the ranging reference signal can be allocated resources, and the demand for ranging through wireless signals can be met.

[0052] It should be understood that the general description above and the following detailed description are only exemplary and explanatory, and cannot limit the disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0053] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, further serve to explain the principles of the present disclosure.

[0054] Figure 1 is a schematic diagram of a direct communication system according to an example embodiment.

[0055] Figure 2 is a flowchart of a resource allocation method according to an example embodiment.

[0056] Figure 3 is a schematic diagram of time division multiplexing of a first resource and a physical direct feedback channel, and time division multiplexing of a physical direct control channel or a physical direct shared channel according to an example embodiment of the present disclosure.

[0057] Figure 4 is a schematic diagram of time division multiplexing of a first resource and a physical direct feedback channel, and time division multiplexing of a physical direct control channel or a physical direct shared channel according to an example embodiment of the present disclosure.

[0058] Figure 5 is a schematic diagram of a correspondence relationship between frequency domain resources used by a ranging reference signal and a frequency domain width of a direct communication resource pool according to an example embodiment of the present disclosure.

[0059] Figure 6 is a schematic diagram of a resource of a direct communication resource pool that coincides with a time resource and / or a frequency resource used by a ranging reference signal and a specified time unit of a direct communication bandwidth part according to an example embodiment, and removal of the resource of the direct communication resource pool that coincides with the first resource.

[0060] Figure 7 is an example diagram of allocation of a bandwidth part for direct ranging according to an example embodiment.

[0061] Figure 8 is a block diagram of a resource allocation apparatus according to an example embodiment.

[0062] Figure 9 is a block diagram of an apparatus for resource allocation according to an example embodiment.

[0063] Figure 10 is a block diagram of an apparatus for resource allocation according to an example embodiment. DETAILED DESCRIPTION

[0064] The exemplary embodiments will be described in detail below with reference to the drawings. In the following description, like reference numerals refer to like elements throughout the description. The following exemplary embodiments described below are not representative of all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0065] The resource allocation method provided by the embodiments of the present disclosure can be applied to Figure 1 The direct communication system is shown. Referring to Figure 1 As shown, in the scenario of direct communication between the direct communication devices, the network device configures various transmission parameters for data transmission for the direct communication device 1. The direct communication device 1 acts as a data sending end, and the direct communication device 2 acts as a data receiving end, and the two devices directly communicate with each other. The link between the network device and the direct communication device is the uplink and downlink, and the link between the direct communication devices is the sidelink.

[0066] In the present disclosure, the communication scenario of direct communication between the direct communication devices can also be a Device to Device (D2D) communication scenario. The direct communication devices in the embodiments of the present disclosure can include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, and various forms of User Equipment (UE), Mobile Station (MS), terminal, Terminal Equipment, etc. For convenience of description, the embodiments of the present disclosure are described below by taking the direct communication device as an example.

[0067] In NR, the user equipment is allocated time resources and frequency resources for direct communication by configuring or pre-configuring the parameters of the Sidelink BWP, Sidelink resource pool, etc. on the direct communication carrier frequency. The Sidelink BWP specifies the subcarrier spacing, Cyclic Prefix (CP) size and a continuous frequency domain position used by the user equipment for direct communication. The Sidelink resource pool is defined in the continuous frequency domain position specified by the Sidelink BWP, and further determines the time resource range and frequency resource range available for the user equipment to send and / or receive direct communication signals. In R16 NR, the user equipment can have one Sidelink BWP, but can have multiple Sidelink resource pools.

[0068] Currently, the physical layer channels in the NR sidelink communication system include a physical sidelink broadcast channel (PSBCH), a physical sidelink shared channel (PSSCH), a physical sidelink control channel (PSCCH), and a physical sidelink feedback channel (PSFCH); the physical layer reference signals include a primary sidelink synchronization signal (PSSS), a secondary sidelink synchronization signal (SSSS), a demodulation reference signal (DMRS), a channel-state information reference signal (CSI-RS), a phase tracking reference signal (PT-RS), and the like. Since the existing NR sidelink communication system does not consider the need for ranging through sidelink signals, the existing channels or reference signals in the NR sidelink communication system are not suitable for ranging due to different design purposes.

[0069] Therefore, the embodiments of the present disclosure provide a resource allocation method, determines a resource allocation parameter used for indicating a transmission ranging reference signal resource, and realizes allocation of the ranging reference signal resource.

[0070] For the convenience of description, the resource used for transmitting the ranging reference signal is referred to as a first resource in the embodiments of the present disclosure. The resource allocation parameter used for indicating the first resource is referred to as a first resource allocation parameter.

[0071] Figure 2 A flowchart of a resource allocation method according to an exemplary embodiment is shown in FIG. 1. As shown in FIG. 1, the resource allocation method includes the following steps. Figure 2

[0072] In step S11, a first resource allocation parameter is determined, the first resource allocation parameter is used for indicating a first resource, and the first resource is used for transmitting a ranging reference signal.

[0073] In the embodiments of the present disclosure, the first resource can be a frequency resource, or can be a time resource, or can be a time resource and a frequency resource. ​

[0074] In an embodiment of the present disclosure, the time resource and / or frequency resource used for the ranging reference signal is indicated by a static or semi-static manner. In an example, the first resource allocation parameter is carried in pre-configuration information, static instruction or semi-static instruction. In an example, the semi-static instruction includes downlink semi-static signaling, for example, the ranging reference signal uses the time resource and / or frequency resource configured by the downlink semi-static signaling of the network device. Or the semi-static instruction includes sidelink semi-static control signaling, for example, the ranging reference signal uses the time resource and / or frequency resource configured by the sidelink semi-static control signaling. In another example, when the user equipment is out of the coverage of the cellular network, the pre-configuration information pre-configured on the user equipment can also be used to determine the configuration of the time resource and / or frequency resource used for the ranging reference signal.

[0075] The resource allocation method related to the present disclosure will be described below in combination with actual applications.

[0076] In an embodiment, the first resource is at least part of the resource in the sidelink resource pool. By allocating part of the time resource and / or frequency resource in the sidelink resource pool for transmitting the ranging reference signal, the existing sidelink design can be reused to the maximum extent, but the selection of the transmission bandwidth of the ranging reference signal is limited by the existing sidelink resource pool, which may affect the performance of the ranging.

[0077] In another embodiment, the first resource is at least part of the resource in the sidelink bandwidth part. By indicating part of the time resource and / or frequency resource on the sidelink BWP used by the sidelink for transmitting the ranging reference signal, it is more conducive to design a new ranging reference signal, fully play the role of the ranging signal and improve the ranging accuracy, but it needs more protocol changes and implementation complexity. In the present disclosure, the time resource and / or frequency resource can not belong to any sidelink resource pool.

[0078] In another embodiment, the first resource is at least part of the resource in the specified sidelink bandwidth part. In an example, the first resource is configured as all resources in the specified sidelink bandwidth part. The first resource can be a separate bandwidth part for sidelink ranging allocated for the transmission of the ranging reference signal, which is more conducive to design a new ranging reference signal, fully play the role of the ranging reference signal and improve the ranging accuracy. The first resource can also be part of the resource in the specified sidelink bandwidth part.

[0079] In yet another implementation, the first resource allocation parameter directly indicates a subcarrier width, a CP length used for the sidelink ranging signal transmission; the latter can also directly indicate a time domain location of the first resource determined according to the subcarrier width and the length; or directly indicate an absolute frequency domain location of a frequency domain reference point and indicate a frequency domain offset of the first resource relative to the frequency domain reference point. In other words, the first resource allocation parameter includes one or more of the following: specifies a subcarrier width and a cyclic prefix length; specifies a time domain location indicated by the subcarrier width and the cyclic prefix length; an absolute frequency domain location of a frequency domain reference point, and a frequency domain offset of the first resource relative to the frequency domain reference point.

[0080] In an implementation of the embodiments of the present disclosure, the specified time resource and / or frequency resource are configured by pre-configuration or downlink control signaling.

[0081] The following will describe the resources configured for the specified time resource and / or frequency resource.

[0082] First, the time resource and / or frequency resource for transmitting the ranging reference signal is described for the first resource being part of the sidelink resource pool.

[0083] In the embodiments of the present disclosure, part of the time resource and / or frequency resource in the sidelink resource pool is specified for transmitting the ranging reference signal. In the embodiments of the present disclosure, the resources used by other sidelink physical layer channels and signals transmitted in the sidelink resource pool are different from the resources used for transmitting the ranging reference signal. Alternatively, it can also be understood that the other sidelink physical layer channels and signals transmitted in the sidelink resource pool do not use the part of the time resource and / or frequency resource used for the ranging reference signal.

[0084] In the embodiments of the present disclosure, the first resource can be a specified resource periodically appearing in the time domain. The first resource allocation parameter used for indicating the first resource periodically appearing in the time domain can include one or more of the following: a value of a time domain period, a starting position of the time domain period, and a specific time resource size and / or position in a period.

[0085] In the embodiments of the present disclosure, the unit of the time domain period of the first resource can be a time unit such as a frame, a subframe, a time slot, a time domain symbol, or a unit such as a second, a millisecond, or a microsecond. When the unit of the period is a time unit, it can be defined on a physical time unit or a logical time unit.

[0086] In an example, in the embodiment of the present disclosure, when the value of the time domain period is configured, the time units belonging to the direct connection resource pool are 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} belongs to the direct connection resource pool. If the period value is 4, starting from time unit n, if the period unit is a physical time unit, the resource includes the set of time units {n, n+4, n+8}. If the period unit is a logical time unit, the resource includes the set of time units {n, n+8}.

[0087] In an example, in the embodiment of the present disclosure, when the starting position of the time domain period is configured, the starting time unit position of the first period after the pre-defined time unit sequence number can be indicated.

[0088] In an example, in the embodiment of the present disclosure, when the specific time resource size and / or position of the time domain period in a period is configured, the following method can be used:

[0089] For example, the period length is N time units, and a bitmap of N bits can be used to indicate which specific time units can be used to transmit the ranging reference signal. Here, the N time units and the time units indicating the period value can be the same or different. For example, the period is 4 slots, each slot contains 14 time domain symbols, and each ranging reference signal transmission occupies at least 2 OFDM symbols. A bitmap of 28 bits can be used to indicate the time domain symbols that can be used to transmit the ranging reference signal. Alternatively, the specific time resource can also be indicated by indicating the starting position in the period plus the time domain length. For example, the period is 4 slots, each slot contains 14 time domain symbols, and each ranging reference signal transmission occupies at least 2 OFDM symbols. In an example of the present disclosure, a mapping table between the starting position plus the time domain length and the sequence number is configured, as shown in Table 1.

[0090] Table 1

[0091] Configuration number Start position Duration 0 10th symbol of the first slot 4 symbols 1 12th symbol of the first slot 2 symbols 。。。 。。。 。。。

[0092] By indicating the configuration sequence number, the specific time resource size and starting position can be determined, and the first resource can be configured.

[0093] In the embodiment of the present disclosure, the first resource can be a specified resource that is continuous in the frequency domain.

[0094] The wideband of the ranging reference signal in the frequency domain has a great influence on the ranging accuracy. The use of a continuous frequency resource for the transmission of the ranging signal can improve the ranging accuracy and reduce the complexity of the ranging signal processing. In the embodiment of the present disclosure, the first resource allocation parameter corresponding to the continuous designated resource in the frequency domain can include a frequency domain starting position and a frequency domain width. The frequency domain starting position and the frequency domain width can be indicated by using independent information fields or by using one information field. The granularity of the frequency domain indication can be a subcarrier, a physical resource block (PRB), or a plurality of continuous PRB sets, etc.

[0095] Further, the ranging reference signal has a signal format. The ranging reference signals with different signal formats can use different generation sequences, have different frequency domain widths and time domain lengths, and have different resource multiplexing manners. Therefore, in the embodiment of the present disclosure, the signal format of the ranging reference signal has a corresponding relationship with one or more of the time domain length, the frequency domain width, and the resource multiplexing manner.

[0096] Further, the ranging reference signal has transmission parameters. The transmission parameters can include a multiplexing factor of the ranging reference signal, a generation sequence number, a possible frequency domain width / time domain length, a transmission power configuration, etc. In the embodiment of the present disclosure, the transmission parameters of the ranging reference signal have a corresponding relationship with one or more of the time domain length, the frequency domain width, and the transmission power configuration.

[0097] In the embodiment of the present disclosure, different ranging reference signals can have different signal formats and / or transmission parameters.

[0098] Further, in the embodiment of the present disclosure, the first resource used for transmitting the ranging reference signal can be frequency division multiplexed and / or time division multiplexed with the resource used for transmitting the signal of the direct communication link. The first resource used for transmitting the ranging reference signal can also be frequency division multiplexed and / or time division multiplexed with the resource used for transmitting other physical layer channels of the direct communication link.

[0099] In an embodiment, the first resource is frequency division multiplexed with the physical direct feedback channel and is time division multiplexed with the physical direct control channel or the physical direct shared channel. Figure 3 FIG. 1 is a schematic diagram of the first resource being frequency division multiplexed with the physical direct feedback channel and being time division multiplexed with the physical direct control channel or the physical direct shared channel, according to an example embodiment of the present disclosure. Figure 3As shown, the first resource for transmitting the ranging reference signal is frequency-division multiplexed with a physical sidelink feedback channel (PSFCH) and time-division multiplexed with a physical sidelink control channel (PSCCH) / physical sidelink shared channel (PSSCH). In general, the ranging reference signal occupies a shorter time length in the time domain and a wider frequency bandwidth in the frequency domain, so as to obtain better timing accuracy. The physical sidelink feedback channel occupies a length of 2 symbols, while the physical sidelink control channel or the physical sidelink shared channel generally occupies more time domain symbols. Moreover, the length of each sidelink feedback information is only 1 PRB, which is much less than the frequency domain resource occupied by the sidelink data and control, and is more suitable for frequency-division multiplexing with the ranging signal.

[0100] In the embodiments of the present disclosure, there is a guard interval between the time-division multiplexed physical sidelink control channel / physical sidelink shared channel and the resource for transmitting the ranging reference signal, that is, there is a guard interval between the first resource and the physical sidelink control channel / physical sidelink shared channel. In the embodiments of the present disclosure, the guard interval is used for the user equipment to switch the transceiver. In which, the user equipment may need to receive the ranging reference signal after transmitting the physical sidelink control channel / physical sidelink shared channel, or need to transmit the ranging reference signal after receiving the physical sidelink control channel / physical sidelink shared channel.

[0101] In another implementation of the embodiments of the present disclosure, the first resource is time-division multiplexed with the physical sidelink feedback channel and time-division multiplexed with the physical sidelink control channel / physical sidelink shared channel. Figure 4 FIG. 1 is a schematic diagram of the first resource time-division multiplexed with the physical sidelink feedback channel and time-division multiplexed with the physical sidelink control channel / physical sidelink shared channel according to an example embodiment of the present disclosure. Referring to FIG. 1, the first resource for transmitting the ranging reference signal is time-division multiplexed with the physical sidelink feedback channel and time-division multiplexed with the physical sidelink control channel / physical sidelink shared channel. Figure 4 As shown, the time resource and the frequency resource for transmitting the ranging reference signal are time-division multiplexed with the physical sidelink control channel / physical sidelink shared channel and also time-division multiplexed with the physical sidelink feedback channel. In this way, the ranging reference signal can be transmitted using a different time domain length from the physical sidelink feedback channel, for example, 1 symbol. Moreover, the ranging reference signal can also be transmitted using a wider bandwidth.

[0102] Secondly, the time resource and / or the frequency resource for transmitting the ranging reference signal is described when the first resource is part of the sidelink communication bandwidth part.

[0103] In the embodiments of the present disclosure, a part of the time resource and / or the frequency resource on the sidelink communication bandwidth part used by the sidelink communication is indicated for transmitting the ranging reference signal. In which, the part of the time resource and / or the frequency resource indicated on the sidelink communication bandwidth part can not belong to any sidelink communication resource pool.

[0104] In the embodiments of the present disclosure, the specified time resources and / or frequency resources are configured by pre-configuration or downlink control signaling. When the partial time resources and / or frequency resources indicated in the direct communication bandwidth part are configured, the information field configured for the first resource allocation parameter is similar to the information field when the partial time resources and / or frequency resources indicated in the direct communication resource pool are configured. The present disclosure does not further describe the similarities, and only the differences are described below.

[0105] The difference is that the resources configured when the partial time resources and / or frequency resources indicated in the direct communication resource pool belong to a given direct communication resource pool in the direct communication bandwidth part, while the resources configured when the partial time resources and / or frequency resources indicated in the direct communication bandwidth part belong to the direct communication bandwidth part.

[0106] In an embodiment, the frequency domain resource used by the ranging reference signal in the embodiments of the present disclosure can exceed the frequency domain width of the direct communication resource pool. Figure 5 FIG. 1 is a schematic diagram of the correspondence between the frequency domain resource used by the ranging reference signal and the frequency domain width of the direct communication resource pool according to an example embodiment of the present disclosure. Referring to FIG. 1, the frequency domain resource used by the ranging reference signal exceeds the frequency domain width of the direct communication resource pool 1 and the direct communication resource pool 2 in the direct communication bandwidth part. Figure 5 As shown in FIG. 1, the frequency domain resource used by the ranging reference signal exceeds the frequency domain width of the direct communication resource pool 1 and the direct communication resource pool 2 in the direct communication bandwidth part.

[0107] In the embodiments of the present disclosure, the first resource may or may not coincide with the resources of the direct communication resource pool in the specified time unit of the direct communication bandwidth part. In an embodiment of the present disclosure, in response to the first resource coinciding with the resources of the direct communication resource pool in the specified time unit of the direct communication bandwidth part, the resources of the direct communication resource pool that coincide with the first resource are removed. That is, when the time resources and / or frequency resources used by the ranging reference signal coincide with the direct communication resource pool, the direct communication resource pool should remove the part of the resources that coincide with the time resources and / or frequency resources used by the ranging reference signal. Figure 6 FIG. 2 is a schematic diagram of the ranging reference signal using the time resources and / or frequency resources coinciding with the resources of the direct communication resource pool in the specified time unit of the direct communication bandwidth part, and removing the resources of the direct communication resource pool that coincide with the first resource according to an example embodiment. As shown in FIG. 2, the direct communication resource pool originally occupies the time domain resources of 14 symbols in the entire time slot (the last symbol is a guard interval according to the protocol). Figure 6 As shown in FIG. 2, the direct communication resource pool originally occupies the time domain resources of 14 symbols in the entire time slot (the last symbol is a guard interval according to the protocol). However, when the time resources and / or frequency resources used by the ranging reference signal occupy the resources of the last two symbols, the direct communication resource pool in the time slot can only use the remaining 12 symbols.

[0108] Again, the time resource and / or frequency resource for transmitting the ranging reference signal is described as the resource of the first resource allocated for the specified sidelink bandwidth part.

[0109] In an embodiment of the present disclosure, a separate bandwidth part for sidelink ranging is allocated for transmitting the sidelink ranging signal. The transmission of the ranging reference signal can use different CP length, subcarrier width, and transmission bandwidth from the transmission of the sidelink communication.

[0110] In an embodiment of the present disclosure, a part of the time resource in the bandwidth part for sidelink ranging can be designated for sidelink ranging. It can also be understood that the first resource is a part of the resource in the separate bandwidth part for sidelink ranging.

[0111] When the first resource is the resource of the specified sidelink bandwidth part, the specified time resource and / or frequency resource in the bandwidth part for sidelink ranging is configured by pre-configuration or downlink control signaling. The configuration of the specified time resource and / or frequency resource is similar to the information field when the part of the time resource and / or frequency resource in the sidelink communication bandwidth part is configured. The present disclosure does not further describe the similar part, and only the difference is described below.

[0112] The difference is that the time and frequency parameters of the bandwidth part for sidelink ranging need to be configured. For example, the subcarrier spacing of the sidelink communication bandwidth part is 30 KHz, and the bandwidth is 20 MHz. The subcarrier spacing of the bandwidth part for sidelink ranging can be 60 KHz, and the bandwidth is 100 MHz.

[0113] The configuration of the bandwidth part for sidelink ranging is similar to other bandwidth parts, including at least one or more of the following: the offset of the specified bandwidth part lowest subcarrier and the specified frequency location; the bandwidth of the specified bandwidth part; and the subcarrier spacing and cyclic prefix length of the specified bandwidth part.

[0114] Figure 7 FIG. 1 is an example diagram of the allocation of a bandwidth part for sidelink ranging according to an example embodiment. Referring to FIG. 1, Figure 7 As shown, the bandwidth part for sidelink ranging can occupy a bandwidth range beyond the sidelink communication bandwidth part. The user equipment needs to leave a necessary switching guard interval between the transmission / reception of the sidelink communication and the sidelink ranging.

[0115] Again, the case where the first resource allocation parameter directly indicates the first resource is described.

[0116] In an embodiment, the first resource allocation parameter directly indicates a subcarrier width and a CP length used by the ranging reference signal transmission, and indicates a time domain position of the first resource according to the indicated subcarrier width and CP length. In an implementation, the first resource allocation parameter can directly indicate an absolute frequency domain position of a frequency domain reference point, and indicate a frequency domain offset of the first resource relative to the frequency domain reference point.

[0117] The implementation process of directly indicating the first resource used by the ranging reference signal in the embodiments of the present disclosure is similar to the implementation process of the first resource being at least part of the designated bandwidth part in the direct connection, and the difference is that the time domain and / or frequency domain position of the first resource is directly indicated, so the similar parts are not described in detail herein.

[0118] The resource allocation method provided by the embodiments of the present disclosure can maximize the reuse of the existing direct connection communication design by allocating part of the resources in the direct connection communication resource pool as the first resource for transmitting the ranging reference signal, but the selection of the transmission bandwidth of the ranging reference signal is limited by the existing direct connection communication resource pool, which may affect the performance of the ranging. By allocating part of the resources in the direct connection bandwidth part as the first resource for transmitting the ranging reference signal, or by allocating the resources of the designated communication bandwidth part dedicated for transmitting the ranging reference signal, it is more beneficial to design a new direct connection ranging reference signal, fully play the role of the ranging reference signal to improve the ranging accuracy, but it requires more protocol changes and implementation complexity.

[0119] The resource allocation method provided by the embodiments of the present disclosure can allocate the first resource for indicating the first resource for transmitting the ranging reference signal, so as to allocate the transmission resource for the ranging reference signal, and further provide the possibility of implementing the direct connection ranging by using the direct connection communication signal, and meet the demand of ranging by using the wireless signal.

[0120] Based on the same concept, the embodiments of the present disclosure also provide a resource allocation apparatus.

[0121] It can be understood that the resource allocation apparatus provided by the embodiments of the present disclosure comprises a hardware structure and / or a software module corresponding to the execution of each function in order to realize the above functions. In combination 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 realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is driven by hardware or computer software, it depends on the specific application and design constraints of the technical solution. Those skilled in the art can 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.

[0122] Figure 8is a block diagram of a resource allocation apparatus according to an exemplary embodiment. Referring to Figure 8 The resource allocation apparatus 100 comprises a processing unit 101. The processing unit 101 is configured to determine a first resource allocation parameter. The first resource allocation parameter is used to indicate a first resource. The first resource is used to transmit a ranging reference signal.

[0123] In an embodiment, the first resource is at least part of resources in a sidelink resource pool.

[0124] In an embodiment, the first resource is at least part of resources in a sidelink bandwidth part.

[0125] In an embodiment, the first resource is at least part of resources in a designated sidelink bandwidth part.

[0126] In an embodiment, the first resource is a resource periodically occurring in time domain.

[0127] In an embodiment, the first resource is a resource continuously in frequency domain.

[0128] In an embodiment, the first resource is frequency division multiplexed and / or time division multiplexed with a resource used for transmitting a sidelink communication link signal.

[0129] In an embodiment, the first resource is frequency division multiplexed with a physical sidelink feedback channel and time division multiplexed with a physical sidelink control channel or a physical sidelink shared channel.

[0130] In an embodiment, the first resource is time division multiplexed with a physical sidelink feedback channel and time division multiplexed with a physical sidelink control channel or a physical sidelink shared channel.

[0131] In an embodiment, there is a guard interval between the first resource and a physical sidelink control channel or a physical sidelink shared channel.

[0132] In an embodiment, the processing unit 101 is further configured to remove, in response to the first resource coinciding with resources of a sidelink resource pool in a designated time unit of a sidelink bandwidth part, the resources of the sidelink resource pool that coincide with the first resource.

[0133] In an embodiment, the first resource allocation parameter comprises one or more of the following:

[0134] an offset of a lowest subcarrier of a designated bandwidth part from a designated frequency location, a bandwidth of the designated bandwidth part, a subcarrier spacing and a cyclic prefix length of the designated bandwidth part.

[0135] In an embodiment, the ranging reference signal has a signal format. The signal format has a corresponding relationship with one or more of a time domain length, a frequency domain width, and a resource multiplexing manner.

[0136] In an embodiment, the ranging reference signal has a transmission parameter, wherein the transmission parameter has a correspondence with one or more of a time domain length, a frequency domain width, a transmission power configuration.

[0137] In an embodiment, the first resource allocation parameter is carried in pre-configuration information, static instruction or semi-static instruction.

[0138] In an embodiment, the semi-static instruction comprises downlink semi-static signaling or sidelink semi-static control signaling.

[0139] With reference to the apparatus in the above-described embodiments, a specific manner that each module performs operations has been described in detail in the embodiments of the method, and thus will not be described here in detail.

[0140] Figure 9 is a block diagram of an apparatus 200 for resource allocation according to an exemplary embodiment. The apparatus 200 can be a mobile phone, a computer, a digital broadcast terminal, a message transmitting / receiving device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like, for example.

[0141] Referring to Figure 9 , the apparatus 200 can include one or more of the following components: a processing component 202, a memory 204, a power supply component 206, a multimedia component 208, an audio component 210, an input / output (I / O) interface 212, a sensor component 214, and a communication component 216.

[0142] The processing component 202 generally controls the overall operations of the apparatus 200, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 202 can include one or more processors 220 to execute instructions to complete all or part of steps of the above-described methods. In addition, the processing component 202 can include one or more modules to facilitate interaction between the processing component 202 and other components. For example, the processing component 202 can include a multimedia module to facilitate the interaction between the multimedia component 208 and the processing component 202.

[0143] The memory 204 is configured to store various types of data to support the operation of the 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. The memory 204 can be implemented by any type of volatile or nonvolatile storage devices or a 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 disk or optical disk.

[0144] The power component 206 provides power to the various components of the device 200. The power component 206 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 200.

[0145] The multimedia component 208 includes a screen providing an output interface between the device 200 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can 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, swiping, and gestures on the touch panel. The touch sensors can not only sense a boundary of a touching or swiping action, but also detect duration and pressure related to the touching or swiping action. In some embodiments, the multimedia component 208 includes a front camera and / or a rear camera. The front and / or rear camera can receive external multimedia data when the device 200 is in an operation mode, such as a shooting mode or a video mode. Each of the front and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0146] The audio component 210 is configured to output and / or input audio signals. For example, the audio component 210 includes a microphone (MIC) configured to receive external audio signals when the device 200 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory 204 or transmitted via the communication component 216. In some embodiments, the audio component 210 also includes a speaker for outputting audio signals.

[0147] The I / O interface 212 provides an interface between the processing component 202 and peripheral interface modules, which can be a keyboard, a click wheel, buttons, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0148] The sensor component 214 includes one or more sensors to provide status assessments for various aspects of the device 200. For example, the sensor component 214 can detect an open / closed status of the device 200, relative positioning of components, such as a display and keypad of the device 200, a change in position of the device 200 or a component of the device 200, presence or absence of user contact with the device 200, orientation or acceleration / deceleration of the device 200, and temperature changes of the device 200. The sensor component 214 can include proximity sensor(s) configured to detect presence of nearby objects without any physical contact. The sensor component 214 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 214 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0149] The communication component 216 is configured to facilitate wired or wireless communication between the device 200 and another device. The device 200 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 216 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 216 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra-WideBand (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0150] In an exemplary embodiment, the device 200 can be implemented using one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, or other electronic units to perform the methods described above.

[0151] In an exemplary embodiment, a non-transitory computer readable storage medium, such as the memory 204 including instructions, is also provided. The instructions can be executable by the processor 220 of the device 200 to perform the methods described above. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, and the like.

[0152] Figure 10 FIG. 3 is a block diagram of an apparatus 300 for resource allocation according to an exemplary embodiment. For example, the apparatus 300 can be provided as a server. The apparatus 300 includes a processor 310, a memory 320, and a transceiver 330. The processor 310 can be configured to implement proposed functions, procedures, and / or methods described in this description. Layers of the radio interface protocol can be implemented by the processor 310. The memory 320 is coupled with the processor 310 and stores various information to operate an electronic device. The transceiver 330 can be configured to transmit and / or receive a signal. The transceiver 330 can include a transmitter and / or a receiver. The transceiver 330 can be implemented with a single chip or multiple chips. Figure 3The apparatus 300 also includes a processing component 322 that is configured to execute instructions stored in the memory 332, and a memory 332 that is configured to store information within the apparatus 300. The processing component 322 can be a general purpose central processing unit (CPU), processor, microcontroller, microprocessor, programmable logic controller (PLC), application specific integrated circuit (ASIC), field programmable gate array (FPGA), or any other processing component known in the art. It is to be understood that, depending on the exact configuration and type of components, the memory 332 can be non-removable, removable, or a combination thereof. The memory 332 can be volatile memory (e.g., random access memory, RAM), non-volatile memory (e.g., read-only memory, ROM), flash memory, or a combination thereof. The memory 332 can include a storage mechanism, such as, for example, solid state storage, hard disk, or a combination thereof. The apparatus 300 also includes a power source component 326 that is configured to provide power to the apparatus 300, a wired or wireless network interface 350 that is configured to connect the apparatus 300 to a network, and an input / output (I / O) interface 352. The apparatus 300 can operate based on an operating system stored in the memory 332, such as, for example, Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0153] The apparatus 300 can also include a power source component 326 that is configured to perform power management for the apparatus 300, a wired or wireless network interface 350 that is configured to connect the apparatus 300 to a network, and an input / output (I / O) interface 352. The apparatus 300 can operate based on an operating system stored in the memory 332, such as, for example, Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0154] In exemplary embodiments, a non-transitory computer readable storage medium comprising instructions, such as, for example, the memory 332 comprising instructions, is also provided. The instructions can be executable by the processing component 322 of the apparatus 300 to perform the methods described above. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, and the like.

[0155] It is further to be understood that "a plurality" or "a plurality of" means two or more, and that other quantifiers can be construed in a like fashion. The term "and / or" means that the associated listed items can be present alone or in any combination. The term "comprises" and variations thereof, do not have a limiting meaning where these terms appear in this description, and there are no restrictions on how many times the referenced features, steps, or components can occur in the combination or composition. The term "about" means that quantities, dimensions, and other parameters are not exact, but have a functional dependence error, measurement error, and other perturbations often that occur in physical implementations even when in an "ideal" setting.

[0156] It is further to be 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 each other, and do not represent a specific order or importance. In fact, "first", "second", etc. expressions can be used interchangeably. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present disclosure.

[0157] It will be further appreciated that embodiments of the present disclosure, although described in certain order of sequences in the drawings, should not be understood as requiring that the operations be performed in that particular order or in serial, or that all operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing can be advantageous.

[0158] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the concepts disclosed herein. It is intended that the present disclosure cover any and all variations of the present disclosure including combinations of features falling within the general scope of the disclosure. The specification and examples given are intended as illustrative only and not in a limiting sense. The true scope and spirit of the present disclosure should be indicated by the following claims.

[0159] It is to be understood that the present disclosure is not limited to the precise details of design and construction described above and illustrated in the drawings. Various modifications and changes can be made without departing from the scope of the present disclosure. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. A resource allocation method, characterized by, Comprising: determining a first resource allocation parameter, the first resource allocation parameter comprising a first parameter; the first resource allocation parameter is used to indicate a first resource, the first resource being used to transmit a ranging reference signal, wherein the first resource is at least a part of a resource pool for sidelink communication; or the first resource is at least a part of a bandwidth part for sidelink communication; or the first resource is at least a part of a specified sidelink bandwidth part; the first resource is frequency division multiplexed with a physical sidelink feedback channel, and is time division multiplexed with a physical sidelink control channel or a physical sidelink shared channel; wherein the first parameter is used to indicate a starting symbol and a duration in a slot.

2. The method of claim 1, wherein, The first parameter is an N-bit bitmap, where N is a positive integer.

3. The method of claim 2, wherein, The first parameter is used to indicate a logical time domain unit of the first resource, wherein the logical time domain unit is determined based on N, and the logical time domain unit is a time domain resource of the first resource.

4. The resource allocation method of claim 1, wherein, The first resource is a resource that periodically occurs in the time domain; or the first resource is a resource that is continuous in the frequency domain.

5. The method of claim 1, wherein, The ranging reference signal has a signal format, wherein the signal format corresponds to a time domain length and a resource multiplexing manner, the multiplexing manner being a multiplexing manner of the first resource and other resources, and the time domain length being a time domain length of the first resource.

6. The resource allocation method of claim 1 or 5, wherein, The ranging reference signal has a transmission parameter, wherein the transmission parameter has a corresponding relationship with one or more of a time domain length, a frequency domain width, and a transmission power configuration.

7. A resource allocation apparatus characterized by comprising: Comprising: a processing unit configured to determine a first resource allocation parameter, the first resource allocation parameter comprising a first parameter; the first resource allocation parameter is used to indicate a first resource, the first resource being used to transmit a ranging reference signal, wherein the first resource is at least a part of a resource pool for sidelink communication; or the first resource is at least a part of a bandwidth part for sidelink communication; or the first resource is at least a part of a specified sidelink bandwidth part; the first resource is frequency division multiplexed with a physical sidelink feedback channel, and is time division multiplexed with a physical sidelink control channel or a physical sidelink shared channel; wherein the first parameter is used to indicate a starting symbol and a duration in a slot.

8. The apparatus of claim 7, wherein, The first parameter is an N-bit bitmap, where N is a positive integer.

9. The apparatus of claim 8, wherein, The first parameter is used to indicate a logical time domain unit of the first resource, wherein the logical time domain unit is determined based on N, and the logical time domain unit is a time domain resource of the first resource.

10. The apparatus for allocating resources of claim 7, wherein, The first resource is a resource that periodically occurs in the time domain; or the first resource is a resource that is continuous in the frequency domain.

11. The apparatus for allocating resources of claim 7, wherein, The ranging reference signal has a signal format, wherein the signal format corresponds to a time domain length and a resource multiplexing manner, the multiplexing manner being a multiplexing manner of the first resource and other resources, and the time domain length being a time domain length of the first resource.

12. The apparatus for resource allocation according to claim 7 or 11, wherein, The ranging reference signal has a transmission parameter, wherein the transmission parameter has a corresponding relationship with one or more of a time domain length, a frequency domain width, and a transmission power configuration.

13. A resource allocation apparatus, characterized by comprising: Comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the resource allocation method of any one of claims 1 to 6.

14. A non-transitory computer-readable storage medium, when instructions in the storage medium are executed by a processor, enable the processor to perform the resource allocation method of any one of claims 1 to 6.

Images