Resource configuration method, device, and storage medium

Abstract

A resource configuration method, a device, and a storage medium, relating to the technical field of communications. The method is used for configuring initial physical random access channel (PRACH) resources. Within each resource configuration period, the method comprises: obtaining a first time domain resource position on the basis of the ratio of a first PRACH configuration period to a second PRACH configuration period, the number of PRACH resources having consecutive time domain positions, and an initial time domain position of a first PRACH resource, wherein PRACH resources having consecutive time domain positions comprise the first PRACH resource, and the first time domain resource position is adjacent to the initial time domain resource position; and using the first time domain resource position as a time domain resource position of a second PRACH resource. Using the method allows a configured additional PRACH resource and a legacy PRACH resource to be in an aggregated state in a time domain, which allows the time that a network device on a network side is in a deep sleep state to be prolonged, thus increasing gains in energy savings.

Description

Resource configuration method, device and storage medium

[0001] The present application claims priority to the Chinese patent application No. 202411392298.5, filed on September 30, 2024, and entitled "A resource configuration method, device and storage medium", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, in particular to a resource configuration method, device and storage medium. BACKGROUND

[0003] Random access refers to the process from the start of sending a random access preamble by a terminal device to the establishment of a basic signaling connection with the network. The random access message carrying the random access preamble is carried on the physical random access channel (PRACH). The existing PRACH resources are configured based on the number of downlink beams of the synchronization signal and PBCH block (SSB) or system information block 1 (SIB1) to balance the PRACH resources corresponding to each beam. The current configuration method is configured through SIB1, and the adjustment period is too long and not flexible enough.

[0004] In order to improve energy saving gain, the terminal device supporting network energy saving (NES) currently uses the method of configuring additional PRACH resources to adjust the time domain of PRACH resources.

[0005] However, if the configured additional PRACH resources are dispersed in the time domain, that is, the additional PRACH resources and the legacy PRACH resources are not aggregated in the time domain but are in a dispersed distribution state, it will also cause the network side to be in deep sleep for a short time and need to wake up frequently, thereby affecting the effect of network energy saving. SUMMARY

[0006] In order to solve the above problems, the present application provides a resource configuration method, device and storage medium, which can make the configured additional PRACH resources and the legacy PRACH resources in an aggregated state in the time domain, so as to prolong the time of the network device of the network side in a deep sleep state and improve the energy saving gain.

[0007] In a first aspect, the present application provides a resource configuration method for configuring initial physical random access channel (PRACH) resources. In each resource configuration period, the method comprises: obtaining a first time domain resource position according to a ratio of a first PRACH configuration period to a second PRACH configuration period, a number of PRACH resources with continuous time domain positions, and an initial time domain position of a first PRACH resource, wherein the PRACH resources with continuous time domain positions include the first PRACH resource, and the first time domain resource position is adjacent to the initial time domain resource position; and taking the first time domain resource position as a time domain resource position of a second PRACH resource.

[0008] The method provided by the present application adjusts the system frame and period of the existing PRACH resources to obtain the time domain position distribution of the additional PRACH resources, and can also make the configured additional PRACH resources and the legacy PRACH resources in an aggregated state in the time domain, specifically, the system frame of the additional PRACH resources is adjacent to the system frame of the legacy PRACH resources, or the time slot sequence number of the additional PRACH resources is adjacent to the time slot sequence number of the legacy PRACH resources, so that the time of the network device of the network side in a deep sleep state is prolonged, and the energy saving gain is improved.

[0009] In a possible implementation, the second PRACH resource does not overlap with the first PRACH resource in the time domain.

[0010] In a possible implementation, the ratio of the second PRACH configuration period to the first PRACH configuration period is K, and the number of the PRACH resources with continuous time domain positions is M1; the first time domain resource position is obtained according to the ratio of the first PRACH configuration period to the second PRACH configuration period, the number of the PRACH resources with continuous time domain positions, and the initial time domain position of the first PRACH resource, and specifically includes: when K is greater than 1 and M1 is greater than K, (M1-1) / 2 K PRACH resources are selected from the last M1-1 PRACH resources in the M1 PRACH resources with continuous time domain positions in ascending order of system frame number (SFN); (M1-1) / 2 K is an integer; and (M1-1) / 2 Ka system frame number SFN of a first PRACH resource as the first time domain resource position; when K is greater than 1 and M1 is less than or equal to K, selecting a second PRACH resource from the M1 PRACH resources with continuous time domain positions in ascending order of system frame number SFN, and taking a system frame number SFN of the second PRACH resource as the first time domain resource position; when K is less than or equal to 1, taking 1 / K system frame numbers after a maximum SFN corresponding to the PRACH resources with continuous time domain positions as the first time domain resource position, 1 / K being an integer.

[0011] In a possible implementation, a ratio of the second PRACH configuration period to the first PRACH configuration period is K, and a number of the PRACH resources with continuous time domain positions in the initial PRACH resources is M1; the first time domain resource position is obtained according to the ratio of the first PRACH configuration period to the second PRACH configuration period, the number of the PRACH resources with continuous time domain positions, and an initial time domain position of the first PRACH resource, and specifically includes: when K is greater than 1 and M1 is greater than K, selecting (M1-1) / 2 K PRACH resources from the M1-1 PRACH resources with continuous time domain positions in the initial PRACH resources in ascending order of slot number, (M1-1) / 2 K being an integer; determining the first time domain resource position according to the slot numbers of the (M1-1) / 2 K PRACH resources; when K is greater than 1 and M1 is less than or equal to K, selecting a second PRACH resource from the M1 PRACH resources with continuous time domain positions in ascending order of slot number, and taking a slot number of the second PRACH resource as the first time domain resource position; when K is less than or equal to 1, determining the first time domain resource position according to 1 / K slot numbers after a maximum slot number corresponding to the PRACH resources with continuous time domain positions, 1 / K being an integer.

[0012] In a possible implementation, the second PRACH resource overlaps with the first PRACH resource in the time domain.

[0013] In a possible implementation, a ratio of the second PRACH configuration period to the first PRACH configuration period is K, K is less than 1, and a number of PRACH resources with continuous time domain positions in the initial PRACH resource is M1; the first time domain resource position is obtained according to the ratio of the first PRACH configuration period to the second PRACH configuration period, the number of PRACH resources with continuous time domain positions, and an initial time domain position of the first PRACH resource, and specifically includes: taking SFNs of the last (M1-1) PRACH resources with continuous time domain positions and the last (1 / K-M1) SFNs of the SFNs corresponding to the (M1-1) PRACH resources with continuous time domain positions as the first time domain resource position, 1 / K being an integer.

[0014] In a possible implementation, a ratio of the second PRACH configuration period to the first PRACH configuration period is K, K is less than 1, and a number of PRACH resources with continuous time domain positions in the initial PRACH resource is M1; the first time domain resource position is obtained according to the ratio of the first PRACH configuration period to the second PRACH configuration period, the number of PRACH resources with continuous time domain positions, and an initial time domain position of the first PRACH resource, and specifically includes: according to time slot sequence numbers of the last (M1-1) PRACH resources with continuous time domain positions and the last (1 / K-M1) time slot sequence numbers of the time slot sequence numbers corresponding to the (M1-1) PRACH resources with continuous time domain positions, determining the first time domain resource position, 1 / K being an integer.

[0015] In a possible implementation, the method is applied to a time division duplex (TDD) communication system or a frequency division duplex (FDD) communication system.

[0016] In a possible implementation, the method is applied to a frequency division duplex (FDD) communication system.

[0017] In a possible implementation, the method further includes: sending resource configuration information, the resource configuration information indicating the time domain resource position of the second PRACH resource and / or a configuration period of the second PRACH resource.

[0018] In a possible implementation, the method further includes: sending resource configuration information, the resource configuration information at least indicating the time domain resource position of the second PRACH resource, the time domain resource position of the second PRACH resource being a SFN or a time slot sequence number corresponding to the second PRACH resource.

[0019] In a possible implementation, the resource configuration information is carried in system information (SI).

[0020] In a possible implementation, the resource configuration information is carried in a medium access control control element (MAC CE), or in radio resource control (RRC) signaling, or in downlink control information (DCI).

[0021] In a second aspect, the present application also provides a network device, comprising a processor and a memory; the processor is coupled with the memory; the memory is configured to store a computer program and / or instructions; and the processor is configured to execute the computer program and / or instructions stored in the memory to implement the resource configuration method in the first aspect and any implementation manner of the first aspect.

[0022] In a third aspect, the present application also provides a computer program product, which comprises a resource configuration method as in the first aspect and any implementation manner of the first aspect.

[0023] In a fourth aspect, the present application also provides a computer readable storage medium, which stores a computer program or instructions, and when the computer program or instructions are executed by a communication device, the resource configuration method in the first aspect and any implementation manner of the first aspect is implemented. BRIEF DESCRIPTION OF DRAWINGS

[0024] FIG. 1 is a schematic diagram of an NR system according to an embodiment of the present application;

[0025] FIG. 2 is a schematic diagram of time domain distribution of PRACH resources according to the present application;

[0026] FIG. 3A is a flowchart of a resource configuration method according to an embodiment of the present application;

[0027] FIG. 3B is a flowchart of another resource configuration method according to an embodiment of the present application;

[0028] FIG. 4 is a schematic diagram one according to an embodiment of the present application;

[0029] FIG. 5 is a schematic diagram two according to an embodiment of the present application;

[0030] FIG. 6 is a schematic diagram three according to an embodiment of the present application;

[0031] FIG. 7 is a schematic diagram four according to an embodiment of the present application;

[0032] FIG. 8 is a schematic diagram five according to an embodiment of the present application;

[0033] FIG. 9 is a schematic diagram six according to an embodiment of the present application;

[0034] FIG. 10 is a schematic diagram seven according to an embodiment of the present application;

[0035] FIG. 11 is a schematic diagram eight provided by an embodiment of the present application;

[0036] FIG. 12 is a schematic diagram nine provided by an embodiment of the present application;

[0037] FIG. 13 is a schematic diagram of a terminal device provided by an embodiment of the present application;

[0038] FIG. 14 is a schematic diagram of a network device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0039] The terms "first" and "second" and the like in the description and the drawings of the present application are used to distinguish different objects, rather than to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include other steps or units not listed or can optionally include other steps or units inherent to the process, method, product or device.

[0040] In this document, referring to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily mutually exclusive of other embodiments. It is explicitly and implicitly understood that the embodiments described herein can be combined.

[0041] To facilitate understanding of the technical solutions of the embodiments of the present application, the system architecture of the method provided by the embodiments of the present application will be briefly described below. It can be understood that the system architecture described in the embodiments of the present application is to more clearly illustrate the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application.

[0042] Referring to FIG. 1, which is a schematic diagram of an NR system provided by an embodiment of the present application.

[0043] The communication system of the embodiments of the present application includes at least one network device and at least one terminal device. The base station includes a next generation NodeB (gNB) and a next generation-evolved NodeB (ng-eNB). Among them, the gNB is a base station in 5G, and the ng-eNB is a 4G base station accessing the 5G core network. The base stations communicate with each other based on the Xn interface. The base station and the 5G core network (5GC) are connected through the NG interface,

[0044] The core network includes: access and mobility management function (AMF) and user plane function (UPF) and the like network elements.

[0045] The UE and the gNB can communicate through an NR-Uu interface, and the UE and the ng-eNB can communicate through an LTE-Uu interface. Both the NR-Uu interface and the LTE-Uu interface can be used to transmit positioning-related signaling. The LTE-Uu and the NR-Uu use non-access stratum (NAS) or radio resource control (RRC) protocols for transmission.

[0046] All or part of the functions implemented by one or more of the UE, the base station, or the core network can be virtualized, that is, implemented by a special-purpose processor or a general-purpose processor and corresponding software modules. The UE and the base station involve interfaces for air interface transmission, and the transceiving function of the interface can be implemented by hardware. The core network, such as the AMF network element or the UPF network element described above, can be virtualized. Optionally, the virtualized UE, base station, or core network function(s) can be implemented by a cloud device, such as a cloud device in an over the top (OTT) system.

[0047] The above system is only for distance, and the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: satellite communication systems, traditional mobile communication systems. Among them, the satellite communication system can be integrated with the traditional mobile communication system (i.e. ground communication system). The communication system is, for example: a wireless local area network (wireless local area network, WLAN) communication system, a Wi-Fi system, a long term evolution (long term evolution, LTE) system, an LTE frequency division duplex (frequency division duplex, FDD) system, an LTE time division duplex (time division duplex, TDD), a fifth generation (5th generation, 5G) system or a new radio (new radio, NR), a sixth generation (6th generation, 6G) system, and other future communication systems, etc., also support a variety of wireless technology integrated communication system, for example, it can also be applied to unmanned aerial vehicle, satellite communication system, high altitude platform (high altitude platform station, HAPS) communication and other non-terrestrial network (non-terrestrial network, NTN) integrated ground mobile communication network system.

[0048] The network device in the present application has a wireless transceiving function, which is used for communication with a terminal, and can specifically refer to a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, a next generation NodeB in a 6th generation (6G) mobile communication system, an access network device or a module of an access network device in an open RAN (ORAN) system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The network device can also be a module or unit capable of realizing part of the function of a base station. For example, the network device can be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. described below. Among them, in the ORAN system, the CU can also be referred to as an O-CU, the DU can also be referred to as an open (O)-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For example, the base station in the present application embodiment can include various forms of base stations, such as: a macro base station, a micro base station (also known as a small station), a relay station, an access point, a gNB, a transmitting and receiving point (TRP), a transmitting point (TP), a mobile switching center, and can also be a device in device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, Internet of Things (IoT) communication, etc., which undertakes a wireless access function, etc., and the present application embodiment does not make specific limitations thereto.

[0049] The terminal device mentioned in the embodiments of the present application can be a device with wireless transceiving function, and can specifically refer to a user equipment (user equipment, UE), an access terminal, a subscriber unit, a user station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent or a user device. The terminal device can also be a satellite phone, a cellular phone, a smart phone, a wireless data card, a wireless modem, a machine type communication device, can be a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a communication device carried on an airship, a wearable device, a drone, a robot, a terminal in device-to-device (device-to-device, D2D) communication, a terminal in vehicle to everything (vehicle to everything, V2X) communication, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home or a terminal device in future communication network, etc. The present application does not make any limitation. In addition, in the embodiments of the present application, the terminal device can refer to an apparatus for realizing the function of the terminal device, or an apparatus capable of supporting the terminal device to realize the function, such as a chip system, which can be installed in the terminal device. For example, the terminal device can also be a vehicle detector, a sensor in a gas station.

[0050] In order to better understand the embodiments of the present application, first, the related concepts involved in the embodiments of the present application are introduced as follows:

[0051] Random Access (RA): The random access procedure refers to a process from sending a random access preamble by a terminal device to establishing a basic signaling connection with a network before the network. The terminal device can enter a connected state from an idle state or an inactive state by random access, establish various bearers with the network device, obtain some necessary resources and parameter configurations, and then communicate with the network device.

[0052] The specific process of random access is as follows:

[0053] S1: The terminal device sends a random access message Msg1 to the network device, and the content of Msg1 is a random access preamble. The terminal device sends the random access preamble to the network device for random access request, and the network device estimates the transmission delay between the terminal device and the network device by using the random access preamble sent by the terminal device, so as to calibrate the uplink timing of the network device.

[0054] S2: The network device sends a random access message Msg2 to the terminal device after receiving Msg1. Msg2 can include a timing offset (TA), an uplink grant (UL grant), a temporary cell radio network temporary identifier (TC-RNTI), power control, and an indication of a resource for the terminal device to send a random access message Msg3. Msg2 can also include other information, which is not limited by the embodiments of the present application.

[0055] S3: After receiving Msg2 sent by the network device, if the sequence number of the random access preamble in the random access response indicates the same random access preamble as the random access preamble sent by the terminal device to the network device in S1, the terminal device considers that the Msg2 is a random access response for the terminal device, and sends Msg3 on the uplink channel resource indicated by Msg2. Msg3 can carry a unique user identifier.

[0056] S4: After receiving Msg3 from the terminal device, the network device returns a random access message Msg4 to the terminal device that has successfully accessed. The network device carries a unique user identifier in Msg4 to specify the terminal device that has successfully accessed, and other terminal devices that have not successfully accessed will reinitiate random access.

[0057] The random access message Msg1 is carried on a physical random access channel (PRACH). The network device determines the resource allocation of the PRACH according to the network load. The terminal device can read the PRACH resource allocated by the network device for transmitting the random access message Msg1 through a system information block 1 (SIB1), and select and transmit the PRACH resource.

[0058] Most of the energy consumption of the mobile network comes from the wireless access network, especially the active antenna unit (AAU) and the building baseband unit (BBU), which accounts for more than 90% of the entire energy cost, while the data center and the optical fiber transmission account for a smaller share. Therefore, 3GPP R18 sets up the NES issue to study the method of saving network energy consumption.

[0059] The PRACH resource of the traditional scheme is configured through SIB, and the whole period is too long and not flexible. The increase in the number of users is a gradual process, so the PRACH resource may need to be adjusted frequently, and it is difficult to achieve effective energy saving. Therefore, the additional PRACH can be configured for the UE supporting NES to adjust the PRACH resource in the time domain.

[0060] The UE supporting NES can use the additional PRACH resource (referred to as additional PRACH resource in the following description) and the PRACH resource of the traditional UE (referred to as legacy PRACH resource in the following description). The additional PRACH resource can be configured through semi-static signaling.

[0061] Further, for the adaptation of PRACH in the time domain, the following cases can be included:

[0062] Case 1: There is no overlap in the time domain between the additional PRACH resource of the UE supporting NES and the PRACH resource of the traditional UE;

[0063] Case 2: There is overlap in the time domain but no overlap in the frequency domain between the additional PRACH resource of the UE supporting NES and the PRACH resource of the traditional UE;

[0064] Case 3: There is no overlap in the time domain and the frequency domain between the additional PRACH resource of the UE supporting NES and the PRACH resource of the traditional UE;

[0065] Case 4: There is overlap in both time domain and frequency domain between additional PRACH resources of NES supporting UE and PRACH resources of legacy UE.

[0066] Referring to FIG. 2, it is a time domain distribution diagram of PRACH resources provided by the present application.

[0067] For the case without overlap in time domain, if the configured additional PRACH resources and legacy PRACH resources are not aggregated in time domain but in a scattered state, the configuration mode at this time is mode one in FIG. 2.

[0068] In a PRACH configuration period, additional PRACH resources and legacy PRACH resources appear in a scattered manner, and the time interval between adjacent two PRACH resources is short, which can cause the network side to be in deep sleep for a short time and need to wake up frequently, thereby affecting the network energy saving effect. Therefore, it is currently desired to achieve the configuration result shown in mode two in FIG. 2, that is, the additional PRACH resources and the legacy PRACH resources are aggregated, and at this time, there is a longer whole remaining time period t1 in each PRACH configuration period, so as to make the network side maintain a deep sleep state for a longer time.

[0069] In order to achieve the configuration result shown in the above mode two, the present application provides a resource configuration method, device and storage medium. The method can determine the time domain resource position of additional PRACH resources based on the number of PRACH resources with continuous time domain positions in initial PRACH resources, the ratio of the legacy PRACH configuration period and the additional PRACH configuration period, and the initial time domain position of the legacy PRACH resources, and determine the configuration period of the additional PRACH resources according to the configuration period of the legacy PRACH. The method can make the configured additional PRACH resources and legacy PRACH resources in an aggregated state in time domain, thereby prolonging the time of the network device of the network side in a deep sleep state and improving the energy saving gain.

[0070] The implementation mode of the technical scheme of the present application will be specifically described below with reference to the accompanying drawings.

[0071] Referring to FIG. 3A, it is a flow chart of a resource configuration method provided by an embodiment of the present application.

[0072] The method includes the following steps:

[0073] S11: The network device determines a legacy PRACH configuration period and an additional PRACH configuration period of the PRACH resource.

[0074] In the embodiments of the present application, when the network device does not enable the condense function of the PRACH resource, the PRACH resource configured by the network device can be regarded as an initial PRACH resource. The network device can determine the resource configuration period of the initial PRACH through a PRACH index. For example, it is determined that the resource configuration period of the initial PRACH is 80 ms.

[0075] After the network device enables the condense function of the PRACH resource, the network device further determines that the configuration period of the legacy PRACH resource is X ms. The X ms can be the same as or different from the resource configuration period of the legacy PRACH when the network device does not enable the condense function of the PRACH resource, and the embodiments of the present application do not make specific limitations.

[0076] Further, the network device further configures an additional resource configuration period, for example, Y ms.

[0077] The embodiments of the present application do not limit the size relationship between X and Y, but the time domain distribution position of the configured additional PRACH resource can be different with the change of the size of X and Y.

[0078] When the network device side completes the configuration update of the additional PRACH resource once, the updated additional PRACH resource and the legacy PRACH are taken as the initial PRACH resource of the next configuration update of the additional PRACH resource.

[0079] S12: The network device determines the time domain resource position corresponding to the additional PRACH resource.

[0080] In the embodiments of the present application, in order to realize the condense of the additional PRACH resource and the legacy PRACH resource in the time domain, the time domain distribution position of the additional PRACH resource needs to be determined in combination with the time domain distribution position of the initial PRACH resource. The scheme of the embodiments of the present application can determine the time domain resource position of the configured additional PRACH resource based on the legacy PRACH resource or the additional PRACH resource in the initial PRACH resource.

[0081] S13: The network device sends the resource configuration information to the terminal device.

[0082] When the network device determines the time domain distribution position corresponding to the additional PRACH resource, the additional PRACH resource and the legacy PRACH resource jointly serve as the PRACH resource allocated by the network device to the terminal device.

[0083] At this time, the network device sends resource configuration information to the terminal device, and the resource configuration information is used to indicate the time domain distribution position of the additional PRACH resource and / or the configuration period of the additional PRACH resource.

[0084] When the resource configuration information only indicates the time domain distribution position of the additional PRACH resource, the terminal device side can determine the configuration period of the additional PRACH resource based on the similar principle in S12 according to the resource configuration information and a pre-determined protocol.

[0085] When the resource configuration information only indicates the configuration period of the additional PRACH resource, the terminal device side can determine the time domain position of the additional PRACH resource based on the similar principle in S12 according to the resource configuration information and a pre-determined protocol.

[0086] In a possible implementation, the resource configuration information can be carried in system information (SI), for example, specifically can be carried in system information block 1 (SIB1).

[0087] In another possible implementation, the resource configuration information can be carried in media access control control element (MAC CE) signaling

[0088] In yet another possible implementation, the resource configuration information can be carried in radio resource control (RRC) signaling

[0089] In still another possible implementation, the resource configuration information can be carried in downlink control information (DCI).

[0090] S14: The terminal device determines the time domain distribution position of the PRACH resource according to the received resource configuration information.

[0091] After receiving the resource configuration information, the terminal device parses the resource configuration information and determines the time domain distribution position of each PRACH resource.

[0092] The following specifically describes an implementation manner of determining the time domain distribution position corresponding to the additional PRACH resource in S12. That is, the scheme provided in the embodiments of the present application can be applied to a network device, and the network device determines the time domain position corresponding to the additional PRACH resource and the configuration period.

[0093] Referring to FIG. 3B, which is a flowchart of another resource configuration method provided in the embodiments of the present application.

[0094] The method includes the following steps.

[0095] S121: obtaining a first time domain resource position according to a ratio of a first PRACH configuration period to a second PRACH configuration period, a number of PRACH resources with continuous time domain positions, and an initial time domain position of a first PRACH resource.

[0096] The legacy PRACH configuration period and the additional PRACH configuration period are configuration targets of the network device, that is, the network device hopes to obtain the legacy PRACH resource and the additional PRACH resource matched with the configuration target through the scheme of the present application.

[0097] In the PRACH resources with continuous time domain positions, the first PRACH resource is included, and the first time domain resource position is adjacent to the initial time domain resource position.

[0098] S122: taking the first time domain resource position as a time domain resource position of a second PRACH resource.

[0099] The following first describes an implementation manner of obtaining the time domain distribution position corresponding to the additional PRACH resource by adjusting the system frame number (SFN) and the period of the existing PRACH resource.

[0100] First, an implementation manner when the additional PRACH resource and the legacy PRACH resource do not overlap in the time domain is described.

[0101] In this implementation manner, taking a legacy resource configuration period configured by the network device as X ms and an additional resource configuration period as Y ms as examples, various implementation manners are described. The ratio of Y to X is K.

[0102] When Y / X > 1, that is, K is greater than 1, and K is an integer, the configuration period of the additional PRACH resource is larger, and the number of SFNs of the existing PRACH resource needs to be reduced on the basis of the existing PRACH resource. It is assumed that the number of PRACH resources with continuous time domain positions in the initial PRACH resource is M1. When K is greater than 1 and M1 is greater than K, in each configuration period, (M1-1) / 2 K PRACH resources are selected from the last M1-1 PRACH resources with continuous time domain positions in the M1 PRACH resources in ascending order of system frame number SFN, (M1-1) / 2 K is an integer; and the system frame number SFN of the (M1-1) / 2 K PRACH resource is taken as the first time domain resource position.

[0103] When K is greater than 1 and M1 is less than K, the second PRACH resource is selected from the M1 PRACH resources with continuous time domain positions in ascending order of system frame number SFN, and the system frame number SFN of the second PRACH resource is taken as the first time domain resource position.

[0104] When K is less than or equal to 1, 1 / K SFNs after the maximum SFN corresponding to the PRACH resource with continuous time domain positions are taken as the first time domain resource position, and 1 / K is an integer.

[0105] The following is a specific description.

[0106] Case 1: When the number M1 of system frames of the continuous PRACH resource is greater than or equal to Y / X, it indicates that the initial PRACH resource includes a large number of additional PRACH resources formed by the previous several configurations. In each configuration period, (M1-1) / 2 K PRACH resources are selected from the last M1-1 PRACH resources with continuous time domain positions in the M1 PRACH resources in ascending order of system frame number SFN, (M1-1) / 2 K is an integer; and the system frame number SFN of the (M1-1) / 2 K PRACH resource is taken as the first time domain resource position. The configuration period of the additional PRACH resource is set to Y / X times of the legacy PRACH resource configuration period, and the period configuration and the time domain position of the additional PRACH resource are determined.

[0107] It should be noted that at this time, in the initial state, the plurality of PRACH resources in succession generally include legacy PRACH resources and the additional PRACH configured last time, for example, the time domain resource positions of the last 4 additional PRACH in the 5 PRACH resources in succession are determined by the configuration before this time. This is because in actual application, if the condense function is not enabled, the situation of multiple PRACH resources adjacent to each other generally does not occur. Therefore, the plurality of PRACH resources adjacent to each other means that one of them is a legacy PRACH resource, and the rest are additional PRACH resources configured by the scheme of the present application.

[0108] The following is an example. Referring to FIG. 4, which is a schematic diagram of the principle provided by the embodiment of the present application.

[0109] The initial PRACH resources include 5 PRACH resources in succession, wherein the first PRACH resource is a legacy PRACH resource, and the rest are additional PRACH resources. Since in the initial PRACH resources, there are 4 additional PRACH resources in succession within 80 ms, the initial configuration period of the additional PRACH can be regarded as 20 ms.

[0110] At this time of configuration, the configuration requirement of the network device is: the configuration period Y of the additional PRACH resource is 160 ms; the configuration period X of the legacy PRACH resource is 80 ms. (M1-1) / 2 K = 1.

[0111] When Y / X satisfies greater than 1 and is an integer, in each configuration period of the PRACH resource, the number M1 of the SFN of the PRACH resource in succession is 5, which is greater than 2. (M1-1) / 2 K = 1. From the last 4 PRACH resources in the 5 time domain positions in succession, 1 PRACH resource is selected in the order of system frame number SFN from small to large.

[0112] The SFN of the selected PRACH is used as the SFN of the additional PRACH resource.

[0113] The configuration period of the additional PRACH resource is twice the configuration period of the legacy resource, and the time domain distribution of the PRACH resource is shown in FIG. 4. It can be found that the configuration period of the additional PRACH resource is 160 ms after the configuration, while the configuration period of the legacy resource is maintained at 80 ms, which matches the configuration requirement of the network device.

[0114] The implementation manner can make the configured additional PRACH resource and the legacy PRACH resource be aggregated in the time domain. In each PRACH configuration period, there is a longer whole remaining time period to make the network side maintain a longer deep sleep state.

[0115] In addition, in another possible implementation manner, the configuration period of the additional PRACH resource in the initial PRACH resource (which is set as Z) can also be used to determine the configuration period of the additional PRACH resource this time. The configuration period of the additional PRACH resource in the initial PRACH resource is the configuration period of the last configured additional PRACH resource.

[0116] When the additional PRACH resource is configured for the first time after the PRACH resource condense function is enabled, or the initial PRACH resource does not include the additional PRACH resource, the number of SFNs of the additional PRACH resource is X / Y. When the initial PRACH resource includes both the additional PRACH resource and the legacy PRACH resource, taking the configuration period of the additional PRACH resource in the initial PRACH resource as Z for example, if Z is reduced to 1 / 2 of the original Z, the configuration period of the additional PRACH resource will be doubled from Z; if Z is doubled from the original Z, the configuration period of the additional PRACH resource will be reduced to 1 / 2 of the original Z.

[0117] At this time, the number of additional PRACH resources reserved in the initial PRACH resource is determined according to the ratio of Z and Y. As shown in FIG. 4, the configuration period of the additional PRACH in the initial PRACH resource is 20 ms, Y = 160 ms, the number of additional PRACH in the initial PRACH resource is reduced to 1 / 2 of the original, the configuration period is increased from 20 ms to 40 ms, and the number is reduced to 1 / 2 again, the configuration period is increased from 40 ms to 80 ms, at this time, there is only one additional PRACH resource, which cannot be divided by 2, so it cannot be reduced any more, then the configuration period of the remaining additional PRACH resource is increased to twice the original, at this time the configuration period is increased from 80 ms to 160 ms, and the SFN of the remaining additional PRACH is used as the SFN of the additional PRACH configured this time. Alternatively, the configuration period of two legacy PRACH1 in the initial PRACH resource can also be selected, 2X = 160 ms, at this time, in 160 ms, 8 additional PRACH resources are included, 8 additional PRACHs are reduced by 1 / 2 for 3 times in succession, and finally 1 additional PRACH is left, the SFN of the additional PRACH is used as the SFN of the additional PRACH configured this time. The configuration period of the additional PRACH is 2X = 160 ms, and the configuration target is also achieved.

[0118] The additional PRACH resource and the legacy PRACH resource are superimposed to obtain all PRACH resources allocated by the network device. It should be noted that in NR, the length of each system frame is 10 ms, each system frame has a system frame number (SFN), and the system frame number is cyclic between 0-1023. The length of a slot in NR depends on the subcarrier spacing, and the wider the subcarrier spacing, the shorter the duration of the slot. Taking a subcarrier spacing of 15 kHz as an example, the duration of a single slot is 1 ms. In the scheme of the embodiments of the present application, the slot in which the additional PRACH resource is located is the same as the slot in which the additional PRACH included in the initial PRACH resource is located, for example, both are the fourth slot.

[0119] Case 2: When the number M1 of SFNs of the continuous PRACH resource is less than or equal to Y / X, it indicates that the number of additional PRACH resources included in the initial PRACH resource is small, and these additional PRACH resources are formed by the previous several configurations. The following is an example.

[0120] Referring to FIG. 5, which is a second principle diagram provided by the embodiments of the present application.

[0121] The initial PRACH resource includes two adjacent PRACH resources, and the first PRACH resource is a legacy PRACH resource and the other one is an additional PRACH resource. Since there is one additional PRACH resource in the initial PRACH resource within 80 ms, the initial configuration period of the additional PRACH resource can be regarded as 80 ms.

[0122] The network device configuration target is: the configuration period Y of the additional PRACH resource is 160 ms; and the configuration period X of the legacy PRACH resource is 80 ms.

[0123] Y / X is equal to 2, which satisfies greater than 1. M1 is equal to 2. The SFN of the second PRACH resource from the two continuous PRACH resources in the time domain is taken as the SFN of the first time domain resource position.

[0124] The configuration period of the initial legacy PRACH resource is expanded to twice, and the configuration period of the additional PRACH resource is obtained, and then the configuration of the additional PRACH resource is completed.

[0125] The time domain distribution of all the configured PRACH resources after the superposition of the additional PRACH resource and the legacy PRACH resource is shown in FIG. 5. It can be found that the configuration period of the additional PRACH resource is successfully configured to 160 ms and the configuration period of the legacy PRACH resource is maintained to 80 ms, and the above network device configuration target is achieved.

[0126] This implementation mode can ensure that after the additional PRACH resource is configured, the additional PRACH resource and the legacy PRACH resource are gathered in the time domain. In each PRACH configuration period, there is a longer whole remaining time period to enable the network side to maintain a longer deep sleep state.

[0127] Similarly, the configuration period of the additional PRACH resource in the initial PRACH resource can be determined by using the configuration period of the additional PRACH resource (which is set as Z) in the time domain position. The configuration period of the additional PRACH resource in the initial PRACH resource is the configuration period of the last configured additional PRACH resource.

[0128] At this time, the number of the additional PRACH resources in the initial PRACH resource is determined according to the proportional relationship between Z and Y. As shown in FIG. 5, the configuration period of the additional PRACH resource in the initial PRACH resource is 80 ms, Y = 160 ms, the number of the additional PRACH resources in the initial PRACH resource is reduced to 1 / 2 of the original number, but there is only one additional PRACH resource, which cannot be evenly divided by 2, so it cannot be further reduced, and the configuration period of the additional PRACH resource is increased to twice the original period, at this time, the configuration period is increased from 80 ms to 160 ms, and the SFN of the additional PRACH resource is used as the SFN of the additional PRACH resource configured this time.

[0129] Alternatively, the configuration period of two legacy PRACH1 resources in the initial PRACH resource can be selected, 2X = 160 ms, at this time, the number of the two additional PRACH resources in 160 ms is reduced to 1 / 2, and finally one additional PRACH resource is left, the SFN of the additional PRACH resource is used as the SFN of the additional PRACH resource configured this time. The configuration period of the additional PRACH resource is 2X = 160 ms, and the configuration target is also achieved.

[0130] In the scheme of the embodiment of the application, the time slot of the additional PRACH resource is the same as the time slot of the legacy PRACH resource with the largest SFN, for example, both are the fourth time slot.

[0131] Case 3: When Y / X is less than or equal to 1, and X / Y is a positive integer, that is, the configuration period of the legacy PRACH resource is larger, at this time, the number of SFNs in which the PRACH resource exists needs to be increased on the basis of the existing PRACH resource. At this time, according to the number of SFNs of the existing PRACH resource, the last 1 / K SFNs of the largest SFN in each configuration period of the existing PRACH resource are used as the SFNs corresponding to the additional PRACH resource, and the configuration period of the additional PRACH resource is set to Y / X of the configuration period of the legacy PRACH resource. The following is described by way of example.

[0132] Referring to FIG. 6, which is a schematic diagram three of the principle provided by the embodiments of the present application.

[0133] The maximum continuous number of PRACH resources in the initial PRACH resource is 1, at this time, the PRACH resource is a legacy PRACH resource.

[0134] The configuration target of the network device at this time is: the configuration period Y of the additional PRACH resource is 40 ms; and the configuration period X of the legacy PRACH resource is 80 ms.

[0135] The initial PRACH resource only includes the legacy PRACH resource.

[0136] Y / X satisfies less than or equal to 1. At this time, the number of SFNs in which the PRACH resource exists in each configuration period of the existing PRACH resource is 1, and X / Y is equal to 2. Then the last two SFNs of the SFN corresponding to each existing PRACH resource in the configuration period are determined as the SFN in which the additional PRACH resource exists, and the configuration period of the additional PRACH resource is 0.5 times the configuration period of the legacy resource, and the time domain distribution of the additional PRACH resource obtained is shown in FIG. 6. It can be found that by configuration, two additional PRACH resources exist in every 80 ms in FIG. 5, which is equivalent to the configuration period of the additional PRACH resource being 40 ms, and the configuration target of the network device is achieved.

[0137] And after configuring the additional PRACH resource, the additional PRACH resource and the legacy PRACH resource are gathered in the time domain. In each PRACH configuration period, there is a longer whole remaining time period to enable the network side to maintain a longer deep sleep state.

[0138] In the scheme of the embodiments of the present application, the time slots of the additional PRACH resources are the same as those of the existing PRACH resources, for example, both are the fourth time slot.

[0139] The method of the above embodiments can be applied to a time-division duplex (TDD) communication system, and can also be applied to a frequency-division duplex (FDD) communication system.

[0140] To sum up, by using the scheme provided in the embodiments of the present application, the time domain position distribution of the adjusted PRACH resources is taken as the time domain position distribution of the additional PRACH resources, which can make the configured additional PRACH resources and the traditional PRACH resources in an aggregated state in the time domain, specifically, the system frame of the additional PRACH resources and the system frame of the traditional PRACH resources are adjacent, so as to prolong the time of the network device of the network side in a deep sleep state and improve the energy saving gain.

[0141] The above embodiments illustrate the implementation mode of the configuration period of the additional PRACH resources when there is no overlap of the legacy PRACH resources in the time domain, and the following illustrates the implementation mode of the configuration period of the additional PRACH resources when there is overlap of the legacy PRACH resources in the time domain. In this implementation mode, the ratio of the configuration period Y of the additional PRACH resources to the configuration period X of the legacy PRACH resources needs to be less than 1, so as to ensure that there is additional PRACH resource in the time domain after configuration. At this time, the SFN of the last (M1-1) time domain PRACH resources in the PRACH resources with continuous time domain positions, and the last (1 / K-M1) SFN corresponding to the SFN of the (M1-1) time domain PRACH resources, are taken as the first time domain resource position, and 1 / K is an integer. It should be noted that the legacy PRACH resources need to be excluded from the additional PRACH resources, and the time domain resource position of the legacy PRACH resources cannot be used as the time domain resource position of the additional PRACH resources at the same time.

[0142] The following examples are used for illustration.

[0143] Referring to FIG. 7, which is a schematic diagram four of the principle provided in the embodiments of the present application.

[0144] The additional PRACH resource and the legacy PRACH resource in FIG. 7 can completely overlap in the time domain.

[0145] The configuration period of the legacy PRACH resource is 80 ms, and the configuration period of the initial additional PRACH resource is 80 ms. The configuration period of the initial additional PRACH resource completely overlaps with that of the legacy PRACH resource.

[0146] X / Y = 2. The SFN of the last 0 time-domain PRACH resources in the PRACH resources with continuous time-domain positions and the last 1 SFN of the SFN corresponding to the last 0 time-domain PRACH resources are taken as the first time-domain resource position. That is, the last 1 SFN of the SFN corresponding to the legacy PRACH resource in the figure is taken as the first time-domain resource position.

[0147] Because the additional PRACH resource and the legacy PRACH resource overlap in the time domain, the legacy PRACH resource with the SFN of 1 covers the additional PRACH resource with the SFN of 1, so that each configuration period after configuration still includes only one additional PRACH resource and one legacy PRACH resource.

[0148] The following continues to be exemplified.

[0149] Referring to FIG. 8, which is a schematic diagram five of principles provided by the embodiments of the present application.

[0150] The additional PRACH resource and the legacy PRACH resource in FIG. 7 can completely overlap in the time domain.

[0151] The configuration period of the legacy PRACH resource is 80 ms, and the configuration period of the initial additional PRACH resource is 80 ms. At this time, the network device sets the configuration period of the additional PRACH resource to 20 ms.

[0152] X / Y = 4. At this time, the last 3 SFNs of the SFN of the legacy PRACH resource are taken as the SFN corresponding to the additional PRACH resource. The configuration period of the legacy PRACH resource is configured to be one fourth of the configuration period of the legacy PRACH resource.

[0153] However, since the additional PRACH resource and the legacy PRACH resource overlap in the time domain, the legacy PRACH with SFN of 1 covers the additional PRACH resource with SFN of 1, resulting in that only one legacy PRACH resource and three additional PRACH resources are included in each configuration period after configuration.

[0154] The following describes a manner of obtaining the time slots of the additional PRACH resource by adjusting the time slots of the existing PRACH resource, and determining the time domain distribution position of the additional PRACH resource in S121. The implementation manner in which the legacy PRACH resource and the additional PRACH resource do not overlap in the time domain is still described first.

[0155] The length of a slot in NR depends on the subcarrier spacing, and the wider the subcarrier spacing, the shorter the duration of the slot. For the convenience of description, the subcarrier spacing is taken as 15 kHz in the following embodiments, that is, the length of the slot is 1 ms. It can be understood that the time length of the slot is different for other values of the subcarrier spacing, and for the LTE system, the length of the slot is a fixed value of 0.5 ms, which will not be described separately.

[0156] The legacy resource configuration period determined by the network device is taken as X ms, and the additional resource configuration period is taken as Y ms. The ratio of Y and X is K.

[0157] When Y / X > 1, that is, the configuration period of the additional PRACH resource is larger, the number of time slots in the PRACH configuration period needs to be reduced on the basis of the existing PRACH resource. It can be understood that when the length of the slot is 1 ms, each time slot corresponds to a subframe, and the time domain position of the PRACH resource can be represented by the slot number or the subframe number. The present application does not make specific limitations, and the time domain position of the PRACH resource is taken as an example in the following description.

[0158] When K is greater than 1 and M1 is greater than K, (M1-1) / 2 K PRACH resources are selected from the last M1-1 PRACH resources in the M1 time domain positions in ascending order of the slot number. K The first time domain resource position is determined according to the slot number of the (M1-1) / 2 K PRACH resources.

[0159] When K is greater than 1 and M1 is less than or equal to K, the second PRACH resource is selected from the PRACH resources with continuous time domain positions in the order of slot sequence number from small to large, and the slot sequence number of the second PRACH resource is taken as the first time domain resource position.

[0160] When K is less than or equal to 1, the first time domain resource position is determined according to 1 / K slot sequence numbers after the maximum slot sequence number corresponding to the PRACH resources with continuous time domain positions, where 1 / K is an integer.

[0161] The following is specifically described in different cases.

[0162] Case 1: When the number M1 of slots of the continuous PRACH resources is greater than or equal to Y / X, the continuous multiple PRACH resources generally include the legacy PRACH resource and the additional PRACH configured last time in the initial state, for example, the time domain resource positions of the last 4 additional PRACH in the continuous five PRACH resources are determined by the configuration before this configuration. This is because in actual application, if the condense function is not enabled, the situation of multiple PRACH resources adjacent to each other generally does not occur. Therefore, the multiple PRACH resources adjacent to each other means that one of them is a legacy PRACH resource and the rest are additional PRACH resources configured by the scheme of the present application.

[0163] The following is an example. Referring to FIG. 9, which is a schematic diagram six provided by the embodiment of the present application.

[0164] The configuration period Y of the additional PRACH resource set by the network device is 160 ms, including 160 slots; the configuration period X of the legacy PRACH resource is 80 ms, including 80 slots, and the configuration period of the initial additional PRACH resource is 20 ms.

[0165] Y / X satisfies greater than 1. At this time, the time domain distribution of the additional PRACH resource obtained is shown in FIG. 9, and it can be found that by configuring the configuration period of the additional PRACH resource to be changed from 20 ms to 160 ms and the configuration period of the legacy PRACH resource to be 80 ms.

[0166] The multiple continuous PRACH resources are subtracted by M1 in the order of time slot number from large to small, and the minimum of the time slot numbers corresponding to all the subtracted PRACHs is taken as the time slot number of the additional PRACH resource, which can ensure that the additional PRACH resource and the legacy PRACH resource are aggregated in the time domain after the additional PRACH resource is configured, and the aggregation is realized at the time slot level. In each PRACH configuration period, there is a longer whole remaining period to enable the network side to maintain a longer deep sleep state.

[0167] For FIG. 9, the equivalent description is as follows:

[0168] When the number M1 of continuous PRACH resource time slots is greater than or equal to Y / X, in each configuration period, the multiple adjacent PRACH resources are removed in the order of time slot number from large to small, and P1 is Y / X-2. The time slot number corresponding to the PRACH with the maximum remaining time slot number is taken as the time slot number of the additional PRACH resource, and the configuration period of the additional PRACH resource is set to twice the configuration period of the legacy PRACH resource. At this time, the period configuration and the time domain position of the additional PRACH resource are determined.

[0169] In another example, the equivalent description is as follows:

[0170] When the number M1 of continuous PRACH resource time slots is greater than or equal to Y / X, in each configuration period, the multiple adjacent PRACH resources are removed in the order of time slot number from large to small, and N1 is Y / X-1. The time slot number of the remaining PRACH is added by 1 to be taken as the time slot number of the additional PRACH resource, and the configuration period of the additional PRACH resource is expanded to twice the configuration period of the legacy PRACH resource. At this time, the period configuration and the time domain position of the additional PRACH resource are determined.

[0171] Case 2: When the number M1 of continuous PRACH resource time slots is less than Y / X. Referring to FIG. 10, which is a schematic diagram seven provided by an embodiment of the application.

[0172] The configuration period Y of the additional PRACH resource is 160 ms, including 160 time slots; and the configuration period X of the legacy PRACH resource is 80 ms, including 80 time slots.

[0173] Y / X satisfies greater than 1. The time domain distribution of the additional PRACH resource obtained at this time is shown in FIG. 10. The existing PRACH resource is the legacy PRACH. The initial legacy PRACH resource and the additional PRACH resource are superimposed to be the total PRACH resource.

[0174] It can be understood that 10 time slots are included in each system frame, and the time slot sequence number ranges from 0 to 9. The time slots of all system frames are numbered in the embodiments of the present application. For example, if one configuration period includes 8 frames, the time slot sequence number is 0-79. The time slot number divided by 10 is the system frame number corresponding to the time slot.

[0175] In actual application, if the network device sends the resource configuration information to the terminal device, the system frame number of the additional PRACH resource and the time slot sequence number ranging from 0 to 9 or the time slot sequence number ranging from 0 to 79 in the embodiments of the present application can be carried in the time domain position of the additional PRACH resource.

[0176] In this implementation, the additional PRACH resource and the legacy PRACH resource can be ensured to be gathered in the time domain after the additional PRACH resource is configured, and the time slot level gathering is realized. In each PRACH configuration period, there is a longer whole remaining time period to enable the network side to maintain a longer deep sleep state.

[0177] Case 3: When Y / X is less than or equal to 1, and X / Y is a positive integer, that is, the configuration period of the legacy PRACH resource is larger, at this time, the number of time slots with the existing PRACH resource needs to be increased on the basis of the existing PRACH resource. At this time, the number of time slots with the existing PRACH resource is expanded, and in each configuration period, the first time domain resource position is determined according to 1 / K time slot sequence numbers after the maximum time slot sequence number corresponding to the time domain position continuous PRACH resource, 1 / K is an integer, which is described below by way of example.

[0178] Referring to FIG. 11, which is a schematic diagram provided by the embodiments of the present application.

[0179] The configuration period of the additional PRACH resource is Y=40 ms, including 40 time slots; the configuration period of the legacy PRACH resource is X=80 ms, including 80 time slots.

[0180] Y / X satisfies less than 1. At this time, the number of time slots of the PRACH resource in each configuration period of the existing PRACH resource is 1, and X / Y is equal to 2. Then, the next 2 time slots of the time slot corresponding to each existing PRACH resource in the configuration period are determined as the time slots of the additional PRACH resource, and the configuration period of the additional PRACH resource is 0.5 times the legacy resource configuration period. The time domain distribution of the additional PRACH resource is shown in FIG. 11. The existing PRACH resource is a legacy PRACH.

[0181] In this implementation manner, it can be ensured that, after the additional PRACH resource is configured, the additional PRACH resource and the legacy PRACH resource are gathered in the time domain. In each PRACH configuration period, there is a longer whole remaining time period, so that the network side can maintain a deep sleep state for a longer time.

[0182] When Y / X is equal to 1, the implementation manner described in case 3 above can also be adopted, which is illustrated below.

[0183] Referring to FIG. 12, which is a ninth schematic diagram of principles provided by the embodiments of the present application.

[0184] The configuration period of the additional PRACH resource Y is 80 ms, including 80 time slots; and the configuration period of the legacy PRACH resource X is 80 ms, including 80 time slots.

[0185] Y / X satisfies equal to 1. At this time, the number of time slots of the PRACH resource in each configuration period of the existing PRACH resource is 1, and X / Y is equal to 1. Then, the next time slot of the time slot corresponding to each existing PRACH resource in the configuration period is determined as the time slot of the additional PRACH resource, and the configuration period of the additional PRACH resource is 1 times the legacy resource configuration period. The time domain distribution of the additional PRACH resource is shown in FIG. 12. The existing PRACH resource is a legacy PRACH.

[0186] In this implementation manner, it can be ensured that, after the additional PRACH resource is configured, the additional PRACH resource and the legacy PRACH resource are gathered in the time domain, specifically, the time slot numbers of the additional PRACH resource and the legacy PRACH resource are adjacent. In each PRACH configuration period, there is a longer whole remaining time period, so that the network side can maintain a deep sleep state for a longer time.

[0187] In addition, the above two methods can be combined for use, for example, the time slot can be adjusted first, and when the time slot resource is insufficient, the system frame is adjusted, and then the time domain distribution position of the additional PRACH resource is determined. Specifically, for the TDD communication system, the system frame adjustment can be selected first. For the FDD communication system, the time slot adjustment can be performed first, and when the time slot resource is insufficient, the system frame adjustment is performed.

[0188] The above embodiments illustrate the implementation of the configuration period of the additional PRACH resource when the legacy PRACH resource does not overlap in the time domain. The following illustrates the implementation of the configuration period of the additional PRACH resource when the legacy PRACH resource overlaps in the time domain. In this implementation, the ratio of the configuration period Y of the additional PRACH resource to the configuration period X of the legacy PRACH resource needs to be less than 1, so as to ensure that there is an additional PRACH resource in the time domain after the configuration.

[0189] Specifically, the SFN of the last (M1-1) time domain PRACH resources in the PRACH resource with continuous time domain positions, and the last (1 / K-M1) SFN corresponding to the SFN of the (M1-1) time domain PRACH resources are taken as the first time domain resource position, and 1 / K is an integer.

[0190] Based on the method provided in the above embodiments, the present embodiment further provides a terminal device, which will be specifically described below with reference to the accompanying drawings.

[0191] Referring to FIG. 13, it is a schematic diagram of a terminal device provided by an embodiment of the present application.

[0192] The terminal device 100 can include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, a sensor module 180, a key 190, a motor 191, an indicator 192, a camera 193, a display screen 194, and the like. The sensor module 180 can include a gyroscope sensor 180A, an air pressure sensor 180B, an acceleration sensor 180C, and the like.

[0193] It can be understood that the structural schematic of the embodiments of the present application does not constitute a specific limitation on the terminal device 100. In other embodiments of the present application, the terminal device 100 can include more or fewer components than the schematic, or combine certain components, or split certain components, or different component arrangements. The components shown can be implemented in hardware, software, or a combination of software and hardware.

[0194] The processor 110 can include one or more processing units, for example: the processor 110 can include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Among them, different processing units can be independent devices, or can be integrated in one or more processors. For example, the controller can generate operation control signals according to instruction operation codes and timing signals, complete the control of fetching instructions and executing instructions.

[0195] The memory in the processor 110 can also be provided for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory can save instructions or data that the processor 110 has just used or repeatedly uses. If the processor 110 needs to use the instructions or data again, it can be directly called from the memory. Avoiding repeated access reduces the waiting time of the processor 110, thus improving the efficiency of the system.

[0196] The wireless communication function of the terminal device 100 can be realized through the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, and the baseband processor, etc.

[0197] The antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the terminal device 100 can be used to cover a single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization rate of the antenna. For example: the antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In some other embodiments, the antenna can be used in combination with a tuning switch.

[0198] The mobile communication module 150 can provide a solution for wireless communication including 2G / 3G / 4G / 5G, etc. applied to the terminal device 100. The wireless communication module 160 can provide a solution for wireless communication including wireless local area network (WLAN) (such as Wi-Fi network), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (IR), etc. applied to the terminal device 100.

[0199] The processor 110 of the terminal device can be configured to execute computer programs and / or instructions stored in the memory to implement the resource configuration method described in the above embodiments.

[0200] The embodiments of the present application also provide a communication apparatus, which can be a base station, and specifically can be a next generation NodeB (gNB) or a next generation-evolved NodeB (ng-eNB) and the like.

[0201] Referring to FIG. 14, it is a schematic diagram of a communication apparatus provided by the embodiments of the present application.

[0202] The illustrated communication apparatus 1100 includes a processor 1110, a memory 1120, and a transceiver 1130.

[0203] The processor 1110 is mainly used for baseband processing, controlling the communication apparatus 1100, etc. The processor 1110 is usually the control center of the communication apparatus 1100, and is configured to control the communication apparatus 1100 to perform the resource configuration method in the above method embodiments.

[0204] The memory 1120 is mainly used for storing computer program codes and data.

[0205] The transceiver 1130 is mainly used for the transceiving of radio frequency signals and the conversion between radio frequency signals and baseband signals, and the transceiver 1130 can also be referred to as a transceiver, a transceiving circuit, etc.

[0206] The transceiving module of the transceiver 1130 can include an antenna 1133 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly used for radio frequency processing.

[0207] Optionally, devices in transceiver 1130 used to implement receiving functions can be considered a receiver 1032, and devices used to implement transmitting functions can be considered a transmitter 1031. Receiver 1032 can also be referred to as a receiving module, a receiver, or a receiving circuit, etc., and transmitter 1031 can be referred to as a transmitting module, a transmitter, or a transmitting circuit, etc.

[0208] Processor 1110 and memory 1120 can include one or more boards, each of which can include one or more processors and one or more memories.

[0209] Processor 1110 is configured to read and execute programs in memory 1120 to implement control of the communication device. If there are multiple boards, the boards can be interconnected to enhance processing capability. As an optional implementation, multiple boards can share one or more processors, or multiple boards can share one or more memories, or multiple boards can share one or more processors at the same time.

[0210] It should be understood that FIG. 14 is merely an example and not limiting, and the above-described communication device including a processor, a memory, and a transceiver can not rely on the structure shown in FIG. 14.

[0211] The embodiments of the present application also provide a storage medium. The computer readable storage medium can be any available medium or data storage device that can be accessed by a computing device and includes one or more available media. The available media can be a magnetic-based medium (e.g., a floppy diskette, a hard disk drive, a magnetic tape), an optical-based medium (e.g., a compact disk (CD), a DVD), or a semiconductor-based medium (e.g., a solid state hard drive), etc. The computer readable storage medium includes instructions that instruct a terminal device or a communication device to perform the above-described resource configuration method. The embodiments of the present application also provide another computer readable storage medium. The computer readable storage medium includes instructions that instruct a terminal device or a communication device to perform the above-described resource configuration method.

[0212] The embodiments of the present application also provide a computer program product including instructions. The computer program product can be software or a program product including instructions that can be run on a terminal device or a communication device, or stored in any available medium. When the computer program product is run on a terminal device or a communication device, the terminal device or the communication device is caused to perform the above-described resource configuration method. The embodiments of the present application also provide a computer program product including instructions. When the computer program product is run on a terminal device or a communication device, the terminal device or the communication device is caused to perform the above-described resource configuration method.

[0213] It should be understood that in the present application, "at least one" refers to one or more, and "multiple" refers to two or more. "And / or" is used to describe the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, "A and / or B" can represent: only A, only B and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally represents that the associated objects before and after are in an "or" relationship. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0214] The above-described and above-embodied examples are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A resource configuration method, characterized by, A method for configuring an initial physical random access channel (PRACH) resource, the method comprising: obtaining a first time domain resource position according to a ratio of a first PRACH configuration period to a second PRACH configuration period, a number of PRACH resources with continuous time domain positions, and an initial time domain position of a first PRACH resource, wherein the first PRACH resource is included in the PRACH resources with continuous time domain positions, and the first time domain resource position is adjacent to the initial time domain resource position; using the first time domain resource position as a time domain resource position of the second PRACH resource.

2. The method of claim 1, wherein, The second PRACH resource and the first PRACH resource do not overlap in the time domain.

3. The method of claim 2, wherein, The ratio of the second PRACH configuration period to the first PRACH configuration period is K, and the number of PRACH resources with continuous time domain positions is M1; the method of obtaining the first time domain resource position according to the ratio of the first PRACH configuration period to the second PRACH configuration period, the number of PRACH resources with continuous time domain positions, and the initial time domain position of the first PRACH resource specifically comprises: when the K is greater than 1 and the M1 is greater than the K, selecting (M1-1) / 2K PRACH resources in a sequence from small to large according to a system frame number (SFN) from M1-1 PRACH resources of the M1 PRACH resources with continuous time domain positions, wherein (M1-1) / 2K is an integer; using the SFN of the (M1-1) / 2K PRACH resources as the first time domain resource position; when the K is greater than 1 and the M1 is less than or equal to the K, selecting a second PRACH resource in a sequence from small to large according to the SFN from the M1 PRACH resources with continuous time domain positions, and using the SFN of the second PRACH resource as the first time domain resource position; when the K is less than or equal to 1, using 1 / K SFNs after a maximum SFN corresponding to the PRACH resources with continuous time domain positions as the first time domain resource position, wherein 1 / K is an integer.

4. The method of claim 2, wherein, The ratio of the second PRACH configuration period to the first PRACH configuration period is K, and the number of PRACH resources with continuous time domain positions in the initial PRACH resource is M1; the method of obtaining the first time domain resource position according to the ratio of the first PRACH configuration period to the second PRACH configuration period, the number of PRACH resources with continuous time domain positions, and the initial time domain position of the first PRACH resource specifically comprises: when the K is greater than 1 and the M1 is greater than the K, selecting (M1-1) / 2K PRACH resources in the last M1-1 PRACH resources from the M1 PRACH resources in sequence according to the time slot sequence from small to large, the (M1-1) / 2K being an integer; determining the first time domain resource position according to the time slot sequence of the (M1-1) / 2K PRACH resources; when the K is greater than 1 and the M1 is less than or equal to the K, selecting the second PRACH resource in the M1 PRACH resources in sequence according to the time slot sequence from small to large, and taking the time slot sequence of the second PRACH resource as the first time domain resource position; when the K is less than or equal to 1, determining the first time domain resource position according to 1 / K time slot sequences after the maximum time slot sequence corresponding to the PRACH resources in sequence in the time domain, the 1 / K being an integer.

5. The method of claim 1, wherein, The second PRACH resource overlaps with the first PRACH resource in the time domain.

6. The method of claim 5, wherein, The ratio of the second PRACH configuration period to the first PRACH configuration period is K, the K is less than 1, and the number of PRACH resources in sequence in the time domain in the initial PRACH resource is M1; the first time domain resource position is obtained according to the ratio of the first PRACH configuration period to the second PRACH configuration period, the number of PRACH resources in sequence in the time domain, and the initial time domain position of the first PRACH resource, and specifically includes: taking the SFN of the last (M1-1) time domain PRACH resources in the PRACH resources in sequence in the time domain, and the last (1 / K-M1) SFN corresponding to the SFN of the (M1-1) time domain PRACH resources, as the first time domain resource position, the 1 / K being an integer.

7. The method of claim 5, wherein, The ratio of the second PRACH configuration period to the first PRACH configuration period is K, the K is less than 1, and the number of PRACH resources in sequence in the time domain in the initial PRACH resource is M1; the first time domain resource position is obtained according to the ratio of the first PRACH configuration period to the second PRACH configuration period, the number of PRACH resources in sequence in the time domain, and the initial time domain position of the first PRACH resource, and specifically includes: determining the first time domain resource position according to the time slot sequence of the last (M1-1) time domain PRACH resources in the PRACH resources in sequence in the time domain, and the last (1 / K-M1) time slot sequences corresponding to the time slot sequence of the (M1-1) time domain PRACH resources, the 1 / K being an integer.

8. The method according to claim 3 or 6, characterized in that, The method is applied to a time division duplex (TDD) communication system or a frequency division duplex (FDD) communication system.

9. The method according to claim 4 or 7, characterized in that, The method is applied to a frequency division duplex (FDD) communication system.

10. The method of claim 1, wherein, The method further includes: sending resource configuration information, the resource configuration information indicating the time domain resource position of the second PRACH resource and / or the configuration period of the second PRACH resource.

11. The method according to claim 4 or 7, characterized in that, The method further includes: transmit resource configuration information, the resource configuration information at least indicating a time domain resource location of the second PRACH resource, the time domain resource location of the second PRACH resource being a SFN or a slot number corresponding to the second PRACH resource.

12. The method according to claim 10 or 11, characterized in that, The resource configuration information is carried in system information SI.

13. The method of claim 10 or 11, wherein, The resource configuration information is carried in a medium access control control element MAC CE, or in radio resource control RRC signaling, or in downlink control information DCI.

14. A network device, comprising: The network device comprises a processor and a memory; The processor is coupled with the memory; The memory is configured to store computer programs and / or instructions; The processor is configured to execute the computer programs and / or instructions stored in the memory to implement the resource configuration method according to any one of claims 1 to 13.

15. A computer program product, characterised in that, The computer program product comprises computer programs and / or instructions for implementing the resource configuration method according to any one of claims 1 to 13.

16. A computer readable storage medium, the computer readable storage medium storing computer programs or instructions, when the computer programs or instructions are executed, implementing the resource configuration method according to any one of claims 1 to 13.

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