TWI687107B - Resource selection method and device - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
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- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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Abstract
本發明公開了一種資源選擇方法及裝置。終端根據時頻資源圖樣,在資源選擇視窗內確定候選傳輸資源塊集合,該候選傳輸資源塊集合中包括至少一個候選傳輸資源塊,該候選傳輸資源塊為用於在直通鏈路上的傳輸資源,一個候選傳輸資源塊中至少包括N個用於資料發送的時頻資源,該N個時頻資源根據該時頻資源圖樣確定,N為大於等於1的整數;該終端從該候選傳輸資源集合中選擇M個候選傳輸資源塊作為該終端在直通鏈路上的傳輸資源,M為大於等於1的整數。 The invention discloses a resource selection method and device. The terminal determines a set of candidate transmission resource blocks in the resource selection window according to the time-frequency resource pattern, the set of candidate transmission resource blocks includes at least one candidate transmission resource block, and the candidate transmission resource block is a transmission resource used on the through link, A candidate transmission resource block includes at least N time-frequency resources for data transmission, the N time-frequency resources are determined according to the time-frequency resource pattern, and N is an integer greater than or equal to 1; the terminal selects from the set of candidate transmission resources M candidate transmission resource blocks are selected as the transmission resources of the terminal on the through link, and M is an integer greater than or equal to 1.
Description
本發明屬於無線通訊技術領域,尤其是關於一種資源選擇方法及裝置。 The invention belongs to the technical field of wireless communication, and particularly relates to a resource selection method and device.
在V2X技術中,V表示的是車輛(vehicle),X表示的多種實體,例如:V2V表示車輛到車輛(vehicle to Vehicle)、V2P表示車輛到行人(vehicle to pedestrian)、V2I表示車輛到基礎設施(vehicle to infrastructure)、V2N表示車輛到網路(vehicle to network)。 In V2X technology, V represents a vehicle, and X represents various entities, for example: V2V represents a vehicle to vehicle, V2P represents a vehicle to pedestrian, and V2I represents a vehicle to infrastructure. (vehicle to infrastructure), V2N means vehicle to network.
長期演進(long term evolution,LTE)系統中,V2X技術中主要包括兩種通信方式:V2X直接(direct)通信和V2X非直接(indirect)通信。其中,V2X direct通信是指V2X終端之間直接進行通信,V2X indirect通信是指V2X終端之間通過基礎設施(例如基地台或其它的網路實體)間接進行通信。 In a long term evolution (LTE) system, V2X technology mainly includes two communication methods: V2X direct communication and V2X indirect communication. Among them, V2X direct communication refers to direct communication between V2X terminals, and V2X indirect communication refers to indirect communication between V2X terminals through infrastructure (such as base stations or other network entities).
V2X終端之間通過直通鏈路(也稱為PC5介面,協定上描述為Sidelink)進行通信。V2X終端在直通鏈路上進行資料傳輸時關係兩種通道,一種是物理直通鏈路控制通道(physical sidelink control channel,PSCCH),用於傳輸調度分配(scheduling assignment,SA)資訊;另一種是 直通鏈路共用通道(physical sidelink shared channel,PSSCH),也稱為資料(data)通道,用於傳輸資料。其中SA資訊中指示進行資料接收的所有必要的指示資訊,例如,資料傳輸佔用的時頻資源資訊、資料傳輸的調製編碼方式、資料傳輸的用於解調的參考信號的指示資訊等。相應地,接收端通過檢測PSCCH通道中傳輸的SA資訊,並根據該SA資訊進行資料的接收。 The V2X terminals communicate through a direct link (also called PC5 interface, which is described as Sidelink in the agreement). When a V2X terminal performs data transmission on a through link, two channels are related. One is a physical side link control channel (PSCCH), which is used to transmit scheduling assignment (SA) information; the other is Pass-through link shared channel (physical sidelink shared channel, PSSCH), also known as data channel, is used to transmit data. The SA information indicates all necessary instruction information for data reception, for example, time-frequency resource information occupied by data transmission, modulation and coding method of data transmission, and instruction information of the reference signal for demodulation of data transmission, etc. Correspondingly, the receiving end detects the SA information transmitted in the PSCCH channel and receives data according to the SA information.
資料發送方V2X終端可自發選擇直通鏈路上的時頻資源進行資料發送。隨著V2X技術的發展,目前需要新的資源選擇方法,以使資料發送方V2X終端能夠選擇直通鏈路上的時頻資源進行資料發送。 The V2X terminal of the data sender can spontaneously select the time-frequency resources on the through link to send the data. With the development of V2X technology, a new resource selection method is currently needed to enable the V2X terminal of the data sender to select time-frequency resources on the through link for data transmission.
本發明實施例提供了一種資源選擇方法及裝置。 Embodiments of the present invention provide a resource selection method and device.
第一方面,提供一種資源選擇方法,包括: 終端根據時頻資源圖樣,在資源選擇視窗內確定候選傳輸資源塊集合,該候選傳輸資源塊集合中包括至少一個候選傳輸資源塊,該候選傳輸資源塊為用於在直通鏈路上的傳輸資源,一個候選傳輸資源塊中至少包括N個用於資料發送的時頻資源,該N個時頻資源根據該時頻資源圖樣確定,N為大於等於1的整數; 該終端從該候選傳輸資源集合中選擇M個候選傳輸資源塊作為該終端在直通鏈路上的傳輸資源,M為大於等於1的整數。 In the first aspect, a resource selection method is provided, including: The terminal determines a set of candidate transmission resource blocks in the resource selection window according to the time-frequency resource pattern, the set of candidate transmission resource blocks includes at least one candidate transmission resource block, and the candidate transmission resource block is a transmission resource used on the through link, A candidate transmission resource block includes at least N time-frequency resources for data transmission, the N time-frequency resources are determined according to the time-frequency resource pattern, and N is an integer greater than or equal to 1; The terminal selects M candidate transmission resource blocks from the set of candidate transmission resources as the transmission resources of the terminal on the through link, and M is an integer greater than or equal to 1.
可選地,該候選傳輸資源塊集合中至少2個候選傳輸資源塊的時域不重疊。 Optionally, the time domains of at least 2 candidate transmission resource blocks in the set of candidate transmission resource blocks do not overlap.
可選地,該終端從該候選傳輸資源塊集合中選擇M個候選 傳輸資源塊,包括:該終端從該候選傳輸資源塊集合中排除該終端與其他終端發生資源衝突的候選傳輸資源塊;該終端從排除後的候選傳輸資源塊集合中選擇M個候選傳輸資源塊。 Optionally, the terminal selects M candidates from the set of candidate transmission resource blocks Transmission resource blocks, including: the terminal excluding candidate transmission resource blocks from which the terminal has resource conflicts with other terminals from the candidate transmission resource block set; the terminal selecting M candidate transmission resource blocks from the excluded candidate transmission resource block set .
可選地,從該候選傳輸資源塊集合中排除該終端與其他終端發生資源衝突的候選傳輸資源塊,包括:根據在感知視窗內監聽到的其他終端發送的SA資訊,確定干擾時頻資源,該干擾時頻資源為該SA資訊所關聯的時頻資源中的全部或部分; 將該候選傳輸資源塊集合中,與該干擾時頻資源以及該干擾時頻資源對應的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除;其中,該預約時頻資源根據該干擾時頻資源的位置以及預約週期確定。 Optionally, excluding candidate transmission resource blocks in which the terminal and the other terminal have resource conflicts from the set of candidate transmission resource blocks include: determining interference time-frequency resources based on SA information sent by other terminals monitored in the perception window, The interference time-frequency resource is all or part of the time-frequency resource associated with the SA information; Exclude, from the set of candidate transmission resource blocks, the reserved time-frequency resources corresponding to the interference time-frequency resources and the interference time-frequency resources, partially or completely overlapping candidate transmission resource blocks from the set of candidate transmission resource blocks; The reservation time-frequency resource is determined according to the location of the interference time-frequency resource and the reservation period.
可選地,該干擾時頻資源為該SA資訊所關聯的時頻資源中,資料通道參考信號接收功率大於接收功率門限的時頻資源;該排除之後,還包括:判斷該候選傳輸資源塊集合在排除後和排除前的時頻資源數量的比值是否低於設定閾值,若是,則提高該接收功率門限,並再次執行該確定干擾時頻資源的步驟以及該排除步驟。 Optionally, the interference time-frequency resource is a time-frequency resource associated with the SA information, and the data channel reference signal received power is greater than the received power threshold time-frequency resource; after the exclusion, the method further includes: determining the set of candidate transmission resource blocks Whether the ratio of the number of time-frequency resources after elimination and before exclusion is lower than the set threshold, and if so, the received power threshold is increased, and the step of determining the interference time-frequency resource and the elimination step are performed again.
可選地,還包括:若該感知視窗在該終端佔用的資料發送時頻資源,則將該候選傳輸資源塊集合中,與該資料發送時頻資源對應的所有可能的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除。 Optionally, it further includes: if the sensing window occupies the data transmission time-frequency resource occupied by the terminal, then in the candidate transmission resource block set, all possible reservation time-frequency resources corresponding to the data transmission time-frequency resource exist. Partial or all overlapping candidate transmission resource blocks are excluded from the set of candidate transmission resource blocks.
可選地,從排除後的候選傳輸資源塊集合中選擇M個候選傳輸資源塊,包括:根據排除後的候選傳輸資源塊集合中的候選傳輸資源 塊上的接收信號強度,按照接收信號強度從小到大的順序,選擇M個候選傳輸資源塊。 Optionally, selecting M candidate transmission resource blocks from the set of excluded candidate transmission resource blocks includes: according to the candidate transmission resources in the set of excluded candidate transmission resource blocks For the received signal strength on the block, M candidate transmission resource blocks are selected in the order of the received signal strength from small to large.
可選地,該終端從該候選傳輸資源塊集合中選擇M個候選傳輸資源塊,包括:該終端從該候選傳輸資源塊集合中隨機選擇M個候選傳輸資源塊;或者,該終端根據該候選傳輸資源塊集合中的候選傳輸資源塊上的接收信號強度,從該候選傳輸資源塊集合中選擇M個候選傳輸資源塊。 Optionally, the terminal selecting M candidate transmission resource blocks from the set of candidate transmission resource blocks includes: the terminal randomly selecting M candidate transmission resource blocks from the set of candidate transmission resource blocks; or, the terminal according to the candidate The received signal strength on the candidate transmission resource block in the set of transmission resource blocks, and M candidate transmission resource blocks are selected from the set of candidate transmission resource blocks.
第二方面,提供一種資源選擇裝置,包括:確定模組,用於根據時頻資源圖樣,在資源選擇視窗內確定候選傳輸資源塊集合,該候選傳輸資源塊集合中包括至少一個候選傳輸資源塊,該候選傳輸資源塊為用於在直通鏈路上的傳輸資源,一個候選傳輸資源塊中至少包括N個用於資料發送的時頻資源,該N個時頻資源根據該時頻資源圖樣確定,N為大於等於1的整數;選擇模組,用於從該候選傳輸資源集合中選擇M個候選傳輸資源塊作為該終端在直通鏈路上的傳輸資源,M為大於等於1的整數。 In a second aspect, a resource selection device is provided, including: a determination module for determining a set of candidate transmission resource blocks in a resource selection window according to a time-frequency resource pattern, the set of candidate transmission resource blocks including at least one candidate transmission resource block , The candidate transmission resource block is a transmission resource used on the direct link, and one candidate transmission resource block includes at least N time-frequency resources for data transmission, and the N time-frequency resources are determined according to the time-frequency resource pattern, N is an integer greater than or equal to 1; a selection module is used to select M candidate transmission resource blocks from the set of candidate transmission resources as the transmission resources of the terminal on the through link, and M is an integer greater than or equal to 1.
可選地,該候選傳輸資源塊集合中至少2個候選傳輸資源塊的時域不重疊。 Optionally, the time domains of at least 2 candidate transmission resource blocks in the set of candidate transmission resource blocks do not overlap.
可選地,該選擇模組具體用於:從該候選傳輸資源塊集合中排除該終端與其他終端發生資源衝突的候選傳輸資源塊;從排除後的候選傳輸資源塊集合中選擇M個候選傳輸資源塊。 Optionally, the selection module is specifically used to: exclude from the candidate transmission resource block set the candidate transmission resource block where the terminal has a resource conflict with other terminals; select M candidate transmissions from the excluded candidate transmission resource block set Resource block.
可選地,該選擇模組具體用於:根據在感知視窗內監聽到的其他終端發送的SA資訊,確定干擾時頻資源,該干擾時頻資源為該SA資 訊所關聯的時頻資源中的全部或部分;將該候選傳輸資源塊集合中,與該干擾時頻資源以及該干擾時頻資源對應的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除;其中,該預約時頻資源根據該干擾時頻資源的位置以及預約週期確定。 Optionally, the selection module is specifically used to determine interference time-frequency resources based on SA information sent by other terminals monitored in the perception window, and the interference time-frequency resources are the SA resources All or part of the time-frequency resources associated with the information; in the set of candidate transmission resource blocks, there are candidate transmissions that partially or all overlap in the reserved time-frequency resources corresponding to the interference time-frequency resources and the interference time-frequency resources Resource blocks are excluded from the set of candidate transmission resource blocks; where the reservation time-frequency resource is determined according to the location of the interference time-frequency resource and the reservation period.
可選地,該干擾時頻資源為該SA資訊所關聯的時頻資源中,資料通道參考信號接收功率大於接收功率門限的時頻資源;該選擇模組還用於:判斷該候選傳輸資源塊集合在排除後和排除前的時頻資源數量的比值是否低於設定閾值,若是,則提高該接收功率門限,並再次執行該確定干擾時頻資源的步驟以及該排除步驟。 Optionally, the interference time-frequency resource is a time-frequency resource in which the received power of the data channel reference signal is greater than the received power threshold among the time-frequency resources associated with the SA information; the selection module is also used to: determine the candidate transmission resource block Whether the ratio of the number of time-frequency resources after exclusion and before exclusion is lower than a set threshold, and if so, the received power threshold is raised, and the step of determining the interference time-frequency resource and the exclusion step are performed again.
可選地,該選擇模組還用於:若該感知視窗在該終端佔用的資料發送時頻資源,則將該候選傳輸資源塊集合中,與該資料發送時頻資源對應的所有可能的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除。 Optionally, the selection module is also used for: if the perception window is in the data transmission time-frequency resource occupied by the terminal, all possible reservations corresponding to the data transmission time-frequency resource in the set of candidate transmission resource blocks For time-frequency resources, there are candidate transmission resource blocks that overlap partially or completely, and are excluded from the set of candidate transmission resource blocks.
可選地,該選擇模組具體用於:根據排除後的候選傳輸資源塊集合中的候選傳輸資源塊上的接收信號強度,按照接收信號強度從小到大的順序,選擇M個候選傳輸資源塊。 Optionally, the selection module is specifically used to select M candidate transmission resource blocks according to the received signal strength on the candidate transmission resource blocks in the set of excluded candidate transmission resource blocks, in the order of decreasing received signal strength .
可選地,該選擇模組具體用於:從該候選傳輸資源塊集合中隨機選擇M個候選傳輸資源塊;或者,根據該候選傳輸資源塊集合中的候選傳輸資源塊上的接收信號強度,從該候選傳輸資源塊集合中選擇M個候選傳輸資源塊。 Optionally, the selection module is specifically used to: randomly select M candidate transmission resource blocks from the set of candidate transmission resource blocks; or, according to the received signal strength on the candidate transmission resource blocks in the set of candidate transmission resource blocks, M candidate transmission resource blocks are selected from the set of candidate transmission resource blocks.
第三方面,提供一種通信裝置,包括:處理器、記憶體、收發機以及匯流排介面;該處理器,用於讀取記憶體中的程式,執行下列過 程: 根據時頻資源圖樣,在資源選擇視窗內確定候選傳輸資源塊集合,該候選傳輸資源塊集合中包括至少一個候選傳輸資源塊,該候選傳輸資源塊為用於在直通鏈路上的傳輸資源,一個候選傳輸資源塊中至少包括N個用於資料發送的時頻資源,該N個時頻資源根據該時頻資源圖樣確定,N為大於等於1的整數;從該候選傳輸資源集合中選擇M個候選傳輸資源塊作為該終端在直通鏈路上的傳輸資源,M為大於等於1的整數。 In a third aspect, a communication device is provided, including: a processor, a memory, a transceiver, and a bus interface; the processor is used to read a program in the memory and perform the following operations Cheng: According to the time-frequency resource pattern, a set of candidate transmission resource blocks is determined in the resource selection window. The set of candidate transmission resource blocks includes at least one candidate transmission resource block. The candidate transmission resource block is a transmission resource used on the through link. The candidate transmission resource block includes at least N time-frequency resources for data transmission. The N time-frequency resources are determined according to the time-frequency resource pattern, and N is an integer greater than or equal to 1; M are selected from the set of candidate transmission resources The candidate transmission resource block is used as the transmission resource of the terminal on the through link, and M is an integer greater than or equal to 1.
可選地,該候選傳輸資源塊集合中至少2個候選傳輸資源塊的時域不重疊。 Optionally, the time domains of at least 2 candidate transmission resource blocks in the set of candidate transmission resource blocks do not overlap.
可選地,該處理器具體用於:從該候選傳輸資源塊集合中排除該終端與其他終端發生資源衝突的候選傳輸資源塊;從排除後的候選傳輸資源塊集合中選擇M個候選傳輸資源塊。 Optionally, the processor is specifically configured to: exclude from the set of candidate transmission resource blocks candidate transmission resource blocks where the terminal has resource conflicts with other terminals; select M candidate transmission resources from the set of excluded candidate transmission resource blocks Piece.
可選地,該處理器具體用於:根據在感知視窗內監聽到的其他終端發送的SA資訊,確定干擾時頻資源,該干擾時頻資源為該SA資訊所關聯的時頻資源中的全部或部分;將該候選傳輸資源塊集合中,與該干擾時頻資源以及該干擾時頻資源對應的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除;其中,該預約時頻資源根據該干擾時頻資源的位置以及預約週期確定。 Optionally, the processor is specifically configured to determine interference time-frequency resources based on SA information sent by other terminals monitored in the perception window, and the interference time-frequency resources are all of the time-frequency resources associated with the SA information Or part; in the set of candidate transmission resource blocks, there is a part or all of overlapping candidate transmission resource blocks corresponding to the interference time-frequency resources and the reserved time-frequency resources corresponding to the interference time-frequency resources, from the set of candidate transmission resource blocks Excluded; wherein, the reservation time-frequency resource is determined according to the location of the interference time-frequency resource and the reservation period.
可選地,該干擾時頻資源為該SA資訊所關聯的時頻資源中,資料通道參考信號接收功率大於接收功率門限的時頻資源; 該處理器還用於:判斷該候選傳輸資源塊集合在排除後和排除前的時頻資源數量的比值是否低於設定閾值,若是,則提高該接收功率門限,並再次執行該確定干擾時頻資源的步驟以及該排除步驟。 Optionally, the interference time-frequency resource is a time-frequency resource in which the received power of the data channel reference signal is greater than the received power threshold among the time-frequency resources associated with the SA information; The processor is also used to determine whether the ratio of the number of time-frequency resources of the candidate set of transmission resource blocks after exclusion and before exclusion is lower than a set threshold, and if so, increase the received power threshold and execute the interference time-frequency determination again Resource steps and the exclusion step.
可選地,該處理器還用於:若該感知視窗在該終端佔用的資料發送時頻資源,則將該候選傳輸資源塊集合中,與該資料發送時頻資源對應的所有可能的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除。 Optionally, the processor is further configured to: if the perception window is in the time-frequency resource of data transmission occupied by the terminal, all possible reservation times corresponding to the time-frequency resource of data transmission in the set of candidate transmission resource blocks Frequency resources, there are candidate transmission resource blocks that overlap partially or completely, and are excluded from the set of candidate transmission resource blocks.
可選地,該處理器具體用於:根據排除後的候選傳輸資源塊集合中的候選傳輸資源塊上的接收信號強度,按照接收信號強度從小到大的順序,選擇M個候選傳輸資源塊。 Optionally, the processor is specifically configured to: according to the received signal strength on the candidate transmission resource blocks in the set of excluded candidate transmission resource blocks, select M candidate transmission resource blocks in descending order of received signal strength.
可選地,該處理器具體用於:從該候選傳輸資源塊集合中隨機選擇M個候選傳輸資源塊;或者,根據該候選傳輸資源塊集合中的候選傳輸資源塊上的接收信號強度,從該候選傳輸資源塊集合中選擇M個候選傳輸資源塊。 Optionally, the processor is specifically configured to: randomly select M candidate transmission resource blocks from the set of candidate transmission resource blocks; or, according to the received signal strength on the candidate transmission resource blocks in the set of candidate transmission resource blocks, from M candidate transmission resource blocks are selected from the set of candidate transmission resource blocks.
第四方面,提供一種電腦存儲介質,該電腦可讀存儲介質存儲有電腦可執行指令,該電腦可執行指令用於使該電腦執行上述第一方面中任一可能的方案所述的方法。 According to a fourth aspect, a computer storage medium is provided. The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause the computer to execute the method according to any possible solution in the first aspect.
上述實施例中,終端根據時頻資源圖樣,在資源選擇視窗內確定候選傳輸資源塊集合,並從該候選傳輸資源集合中選擇M個候選傳輸資源塊作為該終端在直通鏈路上的傳輸資源。其中,由於一個候選傳輸資源塊中至少包括N個用於資料發送的時頻資源,因此相比于現有技術,使得選擇出的在直通鏈路上的傳輸資源具有更多靈活性,以滿足不同業務的 需求。尤其當M等於2、N大於等於2的情況下,與現有技術相比,在根據選擇出的傳輸資源進行資料發送時,可以提高直通鏈路傳輸可靠性和/或擴大覆蓋範圍。 In the above embodiment, the terminal determines the set of candidate transmission resource blocks in the resource selection window according to the time-frequency resource pattern, and selects M candidate transmission resource blocks from the set of candidate transmission resources as the transmission resources of the terminal on the through link. Among them, since a candidate transmission resource block includes at least N time-frequency resources for data transmission, compared with the prior art, the selected transmission resource on the through link has more flexibility to meet different services of demand. Especially when M is equal to 2 and N is greater than or equal to 2, compared with the prior art, when transmitting data according to the selected transmission resource, the reliability of the through link transmission can be improved and/or the coverage can be expanded.
S501~S502、S601~S602、S701~S703、S801~S804:步驟 S501~S502, S601~S602, S701~S703, S801~S804: steps
1001:確定模組 1001: Confirm module
1002:選擇模組 1002: Select module
1101:處理器 1101: processor
1102:記憶體 1102: Memory
1103:收發機 1103: Transceiver
圖1-1、圖1-2分別為本發明實施例適用的網路架構示意圖;圖2為本發明實施例中的直通鏈路資料傳輸的資源示意圖;圖3-1至圖3-6分別為本發明實施例提供的直通鏈路中的資料傳輸資源示意圖;圖4為本發明實施例中採用該方案1發送SA資訊的示意圖;圖5為本發明實施例提供的資料傳輸方法的流程示意圖;圖6為本發明實施例提供的資源選擇流程示意圖;圖7為本發明另外的實施例提供的資源選擇流程示意圖;圖8為本發明實施例提供的資源排除流程示意圖;圖9為本發明實施例中的資源選擇示意圖;圖10為本發明實施例提供的資源選擇裝置的結構示意圖;圖11為本發明實施例提供的通信裝置的結構示意圖。
Figures 1-1 and 1-2 are schematic diagrams of network architectures applicable to embodiments of the present invention; Figure 2 is a schematic diagram of resources of a through link data transmission in the embodiments of the present invention; Figures 3-1 to 3-6 respectively FIG. 4 is a schematic diagram of data transmission resources in a through link provided by an embodiment of the present invention; FIG. 4 is a schematic diagram of transmitting SA information using the
參見圖1-1和圖1-2,分別為本發明實施例適用的網路架構。 Referring to FIGS. 1-1 and 1-2, respectively, this is a network architecture to which embodiments of the present invention are applicable.
如圖1-1所示,終端基於自發選擇的資源使用直通鏈路與其 他終端進行通信。其中,終端可在配置或者預配置的資源池中通過感知的方法,獲取空閒資源的位置,在空閒的資源中選擇自己傳輸資料所使用的資源。終端也可以在配置或者預配置的資源池中隨機選擇自己傳輸資料所使用的資源。 As shown in Figure 1-1, the terminal uses a straight-through link Communicate with other terminals. Among them, the terminal can obtain the location of the idle resource through the method of perception in the configured or pre-configured resource pool, and select the resource used by itself to transmit the data among the idle resources. The terminal may also randomly select the resources used for transmitting data in the configured or pre-configured resource pool.
如圖1-2所示,終端可基於基地台分配的資源使用直通鏈路與其他終端進行通信。終端在網路覆蓋內的情況下(即終端在基地台覆蓋範圍內時),基地台可以通過蜂窩通信系統的下行控制通道,比如物理下行控制通道(physical downlink control channel,PDCCH)或擴展物理下行控制通道(enhanced physical downlink control channel,EPDCCH),對終端間的直通鏈路通信進行調度。在這種情況下,基地台通過給終端發送調度資訊(scheduling grant),指示終端傳輸的資源位置等。 As shown in Figure 1-2, the terminal can use a direct link to communicate with other terminals based on the resources allocated by the base station. When the terminal is within the network coverage (that is, when the terminal is within the coverage of the base station), the base station can pass the downlink control channel of the cellular communication system, such as the physical downlink control channel (PDCCH) or extended physical downlink The control channel (enhanced physical downlink control channel, EPDCCH) schedules the direct link communication between terminals. In this case, the base station sends scheduling information (scheduling grant) to the terminal to indicate the resource location and the like transmitted by the terminal.
上述網路架構可以是車聯網架構,其中的終端可以是V2X終端。 The above network architecture may be a car networking architecture, and the terminal therein may be a V2X terminal.
上述基地台具體包括但不限於:演進型節點B(evolved Node B,eNB)、無線網路控制器(radio network controller,RNC)、節點B(Node B,NB)、基地台控制器(base station controller,BSC)、基地台收發台(base transceiver station,BTS)、家庭基地台(例如,home evolved NodeB,或home Node B,HNB)、基帶單元(base band unit,BBU)、新空口基地台(g NodeB,gNB)、傳輸點(transmitting and receiving point,TRP)、發射點(transmitting point,TP)、移動交換中心等。當然上述基地台也可由其他接入點設備替代。 The above base stations specifically include but are not limited to: evolved Node B (evolved Node B) B, eNB), radio network controller (RNC), Node B (Node B, NB), base station controller (BSC), base transceiver station (BTS) , Home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (BBU), new air interface base station (g NodeB, gNB), transmission point (transmitting and receiving point, TRP) , Transmitting point (TP), mobile switching center, etc. Of course, the above base station can also be replaced by other access point equipment.
現有LTE V2X技術中,V2X終端可通過直通鏈路傳輸50位元組至1200位元組大小的資料包。隨著車聯網技術的進一步發展,新的應 用場景的不斷出現(例如,車輛編隊、高級駕駛、感測器資訊共用、遠端控制等應用),這對終端與終端之間基於直通鏈路的資料傳輸提出了更高的要求,要求承載的資料包更大,傳輸的可靠性更高,傳輸的距離更遠。但是對於傳輸較大資料包的需求,以及提供覆蓋更大和傳輸更可靠的要求,現有技術所提供的支撐能力有限,不能滿足新的業務要求。舉例來說,現有的LTE V2X技術最大能夠提供兩次傳輸(稱為初傳和重傳),若為了滿足更可靠和更大範圍的覆蓋,則需要降低調製與編碼策略(modulation and coding scheme,MCS)等級。當資料包比較大的時候,降低MCS等級則無法滿足提供更大範圍的覆蓋以及提供高可靠性傳輸的要求。 In the existing LTE V2X technology, a V2X terminal can transmit a data packet with a size of 50 bytes to 1200 bytes through a direct link. With the further development of IoV technology, new applications The continuous emergence of application scenarios (for example, vehicle formation, advanced driving, sensor information sharing, remote control and other applications), which puts forward higher requirements for data transmission between terminals and terminals based on the direct link The data packet is larger, the transmission reliability is higher, and the transmission distance is farther. However, for the need to transmit larger data packets, as well as to provide greater coverage and more reliable transmission, the existing technologies provide limited support capabilities and cannot meet new business requirements. For example, the existing LTE V2X technology can provide up to two transmissions (called initial transmission and retransmission). If more reliable and larger coverage is required, the modulation and coding scheme needs to be reduced. MCS) level. When the data packet is relatively large, lowering the MCS level cannot meet the requirements of providing a wider range of coverage and providing highly reliable transmission.
本發明實施例提出了一種增強的資料傳輸方法以及可實現該方法的裝置,可以靈活地滿足不同業務對於傳輸可靠性和/或覆蓋範圍的要求,進一步地,相比於Rel-14 V2X沒有明顯信令開銷的增加。 The embodiments of the present invention provide an enhanced data transmission method and a device that can implement the method, which can flexibly meet the requirements of different services for transmission reliability and/or coverage. Further, compared with Rel-14 V2X, it is not obvious Increased signaling overhead.
下面結合附圖對本發明實施例進行詳細描述。 The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.
本發明實施例中,終端在直通鏈路上發送資料時,可通過直通鏈路上的M個(M為大於等於1的整數)傳輸資源塊發送資料,其中一個傳輸資源塊中包括N個(N為大於等於1的整數)用於資料發送的時頻資源。可選地,在一些例子中,M=2,N>1;在另外一些例子中,M>2,N?1。 In the embodiment of the present invention, when the terminal sends data on the through link, the terminal may send the data through M (M is an integer greater than or equal to 1) transmission resource blocks on the through link, where one transmission resource block includes N (N is Integer greater than or equal to 1) Time-frequency resources used for data transmission. Optionally, in some examples, M=2, N>1; in other examples, M>2, N? 1.
其中,該傳輸資源塊中包括一個或多個時頻資源,一個時頻資源對應於一次資料傳輸。一個時頻資源在時域上可以以傳輸時間間隔(transmission time interval,,TTI)或子訊框為單位,當然也可以以其他長度的時間單元為單位,本發明實施例對此不做限制。本發明實施例中,可選地,一個時頻資源在時域上為一個TTI或一個子訊框。一個時頻資源在頻 域上可以以物理資源塊(physical resource block,PRB)為資源單位,也可以以PRB組(或稱為子通道)為資源單位,一個PRB組中可包括多個PRB。 當然也可以以其他大小的頻率單元為頻率單位,本發明實施例對此不做限制。本發明實施例中,可選地,一個時頻資源在頻域上佔用一個或多個PRB或一個或多個子通道。 Wherein, the transmission resource block includes one or more time-frequency resources, and one time-frequency resource corresponds to one data transmission. A time-frequency resource may use a transmission time interval (transmission time interval, TTI) or sub-frame as a unit in the time domain, and of course, may also use a time unit of other length as a unit, which is not limited in this embodiment of the present invention. In the embodiment of the present invention, optionally, a time-frequency resource is a TTI or a sub-frame in the time domain. A time-frequency resource The domain may use a physical resource block (PRB) as a resource unit, or a PRB group (or subchannel) as a resource unit, and a PRB group may include multiple PRBs. Of course, frequency units of other sizes may also be used as frequency units, which is not limited in the embodiment of the present invention. In the embodiment of the present invention, optionally, one time-frequency resource occupies one or more PRBs or one or more sub-channels in the frequency domain.
在頻域上,終端在直通鏈路上發送的資料所佔用的頻率資源,可以是直通鏈路的下行通道可使用的頻率資源中的部分或全部。具體地,在車聯網中,一個傳輸資源塊在頻域上佔用的資源可包括:PSCCH可使用的頻域資源池(也即用於傳輸SA資訊的頻域資源池)中的部分資源,以及PSSCH使用的頻域資源池(也即用於傳輸資料的頻域資源池)中的部分資源。 In the frequency domain, the frequency resources occupied by the data sent by the terminal on the through link may be part or all of the frequency resources available on the downlink channel of the through link. Specifically, in the Internet of Vehicles, the resources occupied by one transmission resource block in the frequency domain may include: part of the resources in the frequency domain resource pool (that is, the frequency domain resource pool used to transmit SA information) usable by the PSCCH, and Some resources in the frequency domain resource pool (that is, the frequency domain resource pool used for transmitting data) used by the PSSCH.
可選地,在一些實施例中,在N大於等於2的情況下,一個傳輸資源塊中的N個時頻資源對應於同一個資料包,比如在一個傳輸資源塊中通過N個時頻資源將同一資料包重複發送N次,一個時頻資源對應一次傳輸,每次發送該資料包的不同自動混合重傳請求(hybrid automatic repeat request,HARQ)版本,這樣,接收端可以基於N個時頻資源傳輸的資料進行HARQ合併處理,從而獲得傳輸增益。 Optionally, in some embodiments, in the case where N is greater than or equal to 2, N time-frequency resources in one transmission resource block correspond to the same data packet, such as passing N time-frequency resources in one transmission resource block The same data packet is repeatedly sent N times, one time-frequency resource corresponds to one transmission, and each time a different automatic hybrid repeat request (HARQ) version of the data packet is sent, so that the receiving end can be based on N time-frequency The data transmitted by the resource is subjected to HARQ combining processing to obtain transmission gain.
可選地,在一些實施例中,在M大於等於2的情況下,M個傳輸資源塊可以對應於同一個資料包,也可以對應不同的資料包。比如當M=2時,第一個傳輸資源塊用於傳輸資料包1,第二個傳輸資源塊用於傳輸資料包2;或者,這兩個傳輸資源塊均用於傳輸資料包1,其中這兩個傳輸資源塊傳輸該資料包的不同HARQ版本。如果M個傳輸資源塊對應於
同一個資料包,則接收端可以基於該M個傳輸資源塊發送的資料進行HARQ合併的處理,從而獲得傳輸增益。
Optionally, in some embodiments, in the case where M is greater than or equal to 2, M transmission resource blocks may correspond to the same data packet, or may correspond to different data packets. For example, when M=2, the first transmission resource block is used to transmit
基於本發明的上述實施例,針對同一資料包,終端在直通鏈路上的資料傳輸可具有以下特點中的一個或多個: (1)終端在直通鏈路上發送的資料包所使用的傳輸資源塊數量(即M的取值)大於2,這樣,即使一個傳輸資源塊中僅包含一個時頻資源,且該時頻資源的大小與現有LTE V2X技術中一次資料傳輸所使用的時頻資源大小相同,相比于現有技術,本發明實施例的傳輸次數也更多(一個時頻資源對應於一次資料傳輸),因此可獲得更高的傳輸可靠性; (2)一個傳輸資源塊中用於資料發送的時頻資源數量大於1(即N的取值大於或等於2),這樣,即使傳輸資源塊的數量(即資料傳輸次數)與現有LTE V2X技術中的資料傳輸次數相同,相比于現有技術,本發明實施例中發送的資料包佔用的時間長度也大於現有技術中發送資料包佔用的時間長度,從而可以提高傳輸的可靠性。 Based on the above embodiments of the present invention, for the same data packet, the data transmission of the terminal on the through link may have one or more of the following characteristics: (1) The number of transmission resource blocks (that is, the value of M) used by the terminal to send data packets on the through link is greater than 2, so that even if a transmission resource block contains only one time-frequency resource, and the time-frequency resource The size is the same as the size of the time-frequency resource used for one data transmission in the existing LTE V2X technology. Compared with the prior art, the embodiment of the present invention also has more transmission times (one time-frequency resource corresponds to one data transmission), so it can be obtained Higher transmission reliability; (2) The number of time-frequency resources used for data transmission in a transmission resource block is greater than 1 (that is, the value of N is greater than or equal to 2), so that even if the number of transmission resource blocks (that is, the number of data transmissions) is the same as the existing LTE V2X technology The number of data transmissions in is the same. Compared with the prior art, the time length of the data packet sent in this embodiment of the present invention is also longer than the time length of the data packet sent in the prior art, so that the reliability of transmission can be improved.
可見,上述實施例中,終端在直通鏈路上發送資料時,發送M個傳輸資源塊,其中一個傳輸資源塊中至少包括N個用於資料發送的時頻資源,實現了終端之間的直接通信,並提供了靈活的傳輸資源配置方式以滿足不同業務的需求。尤其當M等於2、N大於等於2的情況下,與現有技術相比,在信令增加不多的情況下,可以提高直通鏈路傳輸可靠性和/或擴大覆蓋範圍。 It can be seen that in the above embodiment, when the terminal sends data on the direct link, M transmission resource blocks are sent, and one of the transmission resource blocks includes at least N time-frequency resources for data transmission, thereby achieving direct communication between the terminals , And provides flexible transmission resource configuration to meet the needs of different services. Especially when M is equal to 2 and N is greater than or equal to 2, compared with the prior art, with little increase in signaling, it is possible to improve the transmission reliability of the through link and/or expand the coverage.
基於上述實施例,圖2示例性地示出了本發明實施例中的一種直通鏈路資料傳輸的資源示意圖。如圖所示,一個V2X終端在直通鏈路 發送資料的時候,使用兩個傳輸資源塊(如圖中的第一傳輸資源塊和第二傳輸資源塊),每個傳輸資源塊中包含4個用於資料發送的時頻資源。其中,一個時頻資源在時域上為一個TTI長度,在頻域上可佔用一個或多個PRB或子通道。在一個時頻資源中,包括用於傳輸SA資訊的PSCCH和用於傳輸資料的PSSCH。其中,PSCCH的頻率資源可從SA資源池中選擇,PSSCH的頻率資源可從資料(data)資源池中選擇。一個傳輸資源塊中每個時頻資源上的SA資訊用於指示所關聯的資料所使用的傳輸資源(比如PSSCH的頻域位置)。 Based on the above-mentioned embodiment, FIG. 2 exemplarily shows a schematic diagram of a resource of a direct link data transmission in an embodiment of the present invention. As shown in the figure, a V2X terminal is on the through link When transmitting data, two transmission resource blocks (such as the first transmission resource block and the second transmission resource block in the figure) are used, and each transmission resource block contains 4 time-frequency resources for data transmission. Among them, a time-frequency resource is a TTI length in the time domain, and one or more PRBs or sub-channels can be occupied in the frequency domain. In a time-frequency resource, it includes PSCCH for transmitting SA information and PSSCH for transmitting data. Among them, the frequency resource of the PSCCH can be selected from the SA resource pool, and the frequency resource of the PSSCH can be selected from the data resource pool. The SA information on each time-frequency resource in a transmission resource block is used to indicate the transmission resource (such as the frequency domain position of the PSSCH) used by the associated data.
圖2僅為一個示例,本發明實施例對PSCCH和PSSCH的頻域位置不做限制,對每個時頻資源中PSCCH中傳輸SA的內容是否相同也不做限制。 FIG. 2 is only an example. The embodiment of the present invention does not limit the frequency domain positions of the PSCCH and PSSCH, and does not limit whether the content of the SA transmitted in the PSCCH in each time-frequency resource is the same.
可選地,本發明實施例中,不同傳輸資源塊中的時頻資源的頻域大小可以相同也可以不同。比如,以圖2為例,第一傳輸資源塊中的PSSCH佔用的PRB數量,與第二傳輸資源中的PSSCH佔用的PRB數量,可以相等也可以不相等。 Optionally, in the embodiment of the present invention, the frequency domain size of time-frequency resources in different transmission resource blocks may be the same or different. For example, taking FIG. 2 as an example, the number of PRBs occupied by the PSSCH in the first transmission resource block and the number of PRBs occupied by the PSSCH in the second transmission resource may or may not be equal.
可選地,本發明實施例中,不同傳輸資源塊之間的時間間隔不超過設定時長。比如,仍以圖2為例,第一傳輸資源塊與第二傳輸資源塊之間的時間間隔不超過X個TTI,X為大於等於1的整數,X的取值可由系統約定或系統組態。 Optionally, in the embodiment of the present invention, the time interval between different transmission resource blocks does not exceed the set duration. For example, still taking FIG. 2 as an example, the time interval between the first transmission resource block and the second transmission resource block does not exceed X TTIs, X is an integer greater than or equal to 1, and the value of X can be agreed by the system or configured by the system .
可選地,本發明實施例中,不同傳輸資源塊的時頻資源可分別獨立選擇,使得不同傳輸資源塊的時域位置和/或頻域位置之間不存在關聯關係。例如,在傳輸兩個資料包的情況下,這兩個資料包所使用的傳輸 資源塊的頻域大小可以不同;考慮到信令指示開銷,可選地,可以限制兩個傳輸資源塊之間的時間間隔不超過固定的時長。在另外的例子中,不同傳輸資源塊的時域位置和/或頻域位置之間可存在關聯關係,該關聯關係可以是松耦合的關聯關係。比如,每個傳輸資源塊之間的時間間隔不超過設定時長,和/或每個傳輸資源塊的頻域資源相同。 Optionally, in the embodiment of the present invention, time-frequency resources of different transmission resource blocks may be independently selected, so that there is no association relationship between time-domain positions and/or frequency-domain positions of different transmission resource blocks. For example, in the case of transmitting two data packets, the transmission used by the two data packets The frequency domain size of the resource blocks may be different; considering the signaling indication overhead, optionally, the time interval between two transmission resource blocks may be limited to not exceed a fixed duration. In another example, there may be an association relationship between time domain positions and/or frequency domain positions of different transmission resource blocks, and the association relationship may be a loosely coupled association relationship. For example, the time interval between each transmission resource block does not exceed the set duration, and/or the frequency domain resource of each transmission resource block is the same.
可選地,本發明實施例中,在N大於等於2的情況下,一個傳輸資源塊中的N個時頻資源的時域位置和/或頻域位置之間,存在關聯關係,即這種關聯關係可以僅為頻域上的,也可以僅為時域上的,還可以是時域和頻域二維聯合的。不同的關聯方式或者不同的關聯關係,可對應于相應的時頻資源圖樣(pattern)。時頻資源圖樣定義了時頻資源的位置和大小,不同的時頻資源圖樣對應于不同的關聯關係。下面結合圖3-1至圖3-6,針對一個傳輸資源塊中N個時頻資源的時域位置和/或頻域位置之間存在的幾種關聯關係的可能形式進行示意: (1)N個時頻資源在時域上連續、在頻域上相同。圖3-1示例性地示出了相應的一種時頻資源圖樣,如圖所示,一個傳輸資源塊中包括4個時頻資源,這4個時頻資源佔用連續的4個TTI,每個時頻資源在時域上佔用1個TTI,這4個時頻資源的PSCCH和PSSCH的頻域位置和大小均相同; (2)N個時頻資源在時域上連續、至少有2個時頻資源的頻域資源不同(比如頻域位置和/或頻域大小不同),比如,在頻域上所述N個時頻資源可按照設定的時頻資源圖樣進行跳頻。可採用的時頻資源圖樣可以有多種。所有可能的時頻資源圖樣中的全部或部分可組成時頻資源圖樣集合,資料發送方終端可使用該集合中的時頻資源圖樣確定資料傳輸的時頻資源。 集合中時頻資源圖樣數量與N的取值可存在對應關係,該對應關係可以是協議約定的,也可以是配置的。即,可針對每種N的取值,設置對應的時頻資源圖樣集合。 Optionally, in the embodiment of the present invention, in a case where N is greater than or equal to 2, there is an association relationship between time domain positions and/or frequency domain positions of N time-frequency resources in one transmission resource block, that is, such The association relationship may be only in the frequency domain, or only in the time domain, or may be a two-dimensional joint of the time domain and the frequency domain. Different association methods or different association relationships may correspond to corresponding time-frequency resource patterns. The time-frequency resource pattern defines the position and size of the time-frequency resource, and different time-frequency resource patterns correspond to different association relationships. In the following, in conjunction with FIGS. 3-1 to 3-6, several possible forms of association relationships between time domain positions and/or frequency domain positions of N time-frequency resources in a transmission resource block are illustrated: (1) N time-frequency resources are continuous in the time domain and the same in the frequency domain. Figure 3-1 exemplarily shows a corresponding pattern of time-frequency resources. As shown in the figure, one transmission resource block includes 4 time-frequency resources, and these 4 time-frequency resources occupy 4 consecutive TTIs, each The time-frequency resource occupies 1 TTI in the time domain, and the PSCCH and PSSCH frequency domain positions and sizes of the four time-frequency resources are the same; (2) N time-frequency resources are continuous in the time domain, and at least two time-frequency resources have different frequency-domain resources (such as different frequency-domain positions and/or different frequency-domain sizes), for example, the N number in the frequency domain The time-frequency resource can be frequency-hopped according to the set time-frequency resource pattern. There can be many patterns of time-frequency resources that can be used. All or part of all possible time-frequency resource patterns may form a set of time-frequency resource patterns, and the terminal of the data sender may use the time-frequency resource patterns in the set to determine the time-frequency resources for data transmission. There may be a correspondence between the number of time-frequency resource patterns in the set and the value of N, and the correspondence may be agreed by the protocol or configured. That is, for each value of N, a corresponding set of time-frequency resource patterns can be set.
下面舉例說明N的取值與時頻資源圖樣的個數之間的關係:以在一個時間視窗內進行時域跳頻為例,該時間視窗中包括8個TTI,則當N=1時,時頻資源圖樣個數為8;當N=2時,則時頻資源圖樣個數為28,相當於從8個TTI中任意選擇2個TTI所得到的TTI組合的數量,可表示為;以此類推,可得到當N=3,4時,對應的時頻資源圖樣個數。 The following illustrates the relationship between the value of N and the number of time-frequency resource patterns: Taking time-domain frequency hopping in a time window as an example, the time window includes 8 TTIs, when N=1, The number of time-frequency resource patterns is 8; when N=2, the number of time-frequency resource patterns is 28, which is equivalent to the number of TTI combinations obtained by randomly selecting 2 TTIs from 8 TTIs, which can be expressed as ; By analogy, the number of corresponding time-frequency resource patterns can be obtained when N=3,4.
在SA資訊中,可以將N的取值以及時頻資源圖樣的索引值聯合指示。例如,將N=1、N=2、N=3和N=4時的時頻資源圖樣依照一定順序組成一個集合,對該集合中的時頻資源圖樣索引,這樣一個時頻資源圖樣在該集合中的索引值既可以指示N的取值也可以指示時頻資源圖樣。比如,將N=1、N=2、N=3和N=4時的時頻資源圖樣依照N=1、N=2、N=3、N=4的順序組成一個集合,該集合中的前8個時頻資源圖樣表示N=1時的時頻資源圖樣,從第9個時頻資源圖樣開始到第36個時頻資源圖樣為N=2時的時頻資源圖樣,依次類推。 In SA information, the value of N and the index value of the time-frequency resource pattern can be jointly indicated. For example, the time-frequency resource patterns for N=1, N=2, N=3, and N=4 are organized into a set in a certain order, and the time-frequency resource patterns in the set are indexed. Such a time-frequency resource pattern is in the The index value in the set can indicate either the value of N or the time-frequency resource pattern. For example, the time-frequency resource patterns when N=1, N=2, N=3, and N=4 form a set in the order of N=1, N=2, N=3, and N=4. The first 8 time-frequency resource patterns represent the time-frequency resource patterns when N=1, starting from the 9th time-frequency resource pattern to the 36th time-frequency resource pattern when N=2, and so on.
進一步地,本關聯方式中,N個時頻資源在頻域上採用了跳頻,可使用的時頻資源圖樣與資料包佔用的頻域資源的大小有關。例如,若每個時頻資源的頻域連續時,不同的時頻資源的大小將影響時頻資源圖樣的選擇。 Further, in this association mode, the N time-frequency resources adopt frequency hopping in the frequency domain, and the available time-frequency resource pattern is related to the size of the frequency domain resources occupied by the data packet. For example, if the frequency domain of each time-frequency resource is continuous, the size of different time-frequency resources will affect the selection of the time-frequency resource pattern.
圖3-2示例性地示出了其中的一種時頻資源圖樣,如圖所示, 一個傳輸資源塊中包括4個時頻資源,這4個時頻資源佔用連續的4個TTI,每個時頻資源在時域上佔用1個TTI,這4個時頻資源的PSCCH的頻域位置各不相同,且這4個時頻資源的PSSCH的頻域位置各不相同。圖3-2僅為一種示例,在另外的例子中,這4個時頻資源的PSCCH的頻域位置和大小可以相同,而PSSCH的頻域位置各不相同。 Figure 3-2 exemplarily shows one of the time-frequency resource patterns, as shown in the figure, A transmission resource block includes 4 time-frequency resources. The 4 time-frequency resources occupy 4 consecutive TTIs. Each time-frequency resource occupies 1 TTI in the time domain. The PSCCH frequency domain of these 4 time-frequency resources The positions are different, and the PSSCH frequency domain positions of the four time-frequency resources are different. Figure 3-2 is only an example. In another example, the frequency domain positions and sizes of the PSCCHs of the four time-frequency resources may be the same, while the frequency domain positions of the PSSCHs are different.
(3)N個時頻資源中至少有2個時頻資源在時域上不連續、該N個時頻資源在頻域上相同,比如,在時域上所述N個時頻資源可按照設定的時頻資源圖樣進行跳頻。可採用的時頻資源圖樣有多種。所有可能的時頻資源圖樣中的全部或部分可組成時頻資源圖樣集合,資料發送方終端可使用該集合中的時頻資源圖樣確定資料傳輸的時頻資源。集合中時頻資源圖樣數量與N的取值可存在對應關係,該對應關係可以是協議約定的,也可以是配置的。即,可針對每種N的取值,設置對應的時頻資源圖樣集合。 (3) At least 2 of the N time-frequency resources are not continuous in the time domain, and the N time-frequency resources are the same in the frequency domain. For example, the N time-frequency resources in the time domain may be Perform frequency hopping on the set time-frequency resource pattern. There are many patterns of time-frequency resources that can be used. All or part of all possible time-frequency resource patterns may form a set of time-frequency resource patterns, and the terminal of the data sender may use the time-frequency resource patterns in the set to determine the time-frequency resources for data transmission. There may be a correspondence between the number of time-frequency resource patterns in the set and the value of N, and the correspondence may be agreed by the protocol or configured. That is, for each value of N, a corresponding set of time-frequency resource patterns can be set.
圖3-3示例性地示出了其中的一種時頻資源圖樣,如圖所示,一個傳輸資源塊中包括4個時頻資源,每個時頻資源在時域上佔用1個TTI,相鄰的兩個時頻資源之間間隔1個TTI,這4個時頻資源的PSCCH和PSSCH的頻域位置和大小均相同。圖3-4示例性地示出了另一種時頻資源圖樣,如圖所示,一個傳輸資源塊中包括4個時頻資源,每個時頻資源在時域上佔用1個TTI,第一個和第二個時頻資源在時域上連續,第三個和第四個時頻資源在時域上連續,第二個和第三個時頻資源之間間隔2個TTI,這4個時頻資源的PSCCH和PSSCH的頻域位置和大小均相同。 Figure 3-3 exemplarily shows one of the time-frequency resource patterns. As shown in the figure, one transmission resource block includes 4 time-frequency resources, and each time-frequency resource occupies 1 TTI in the time domain. The adjacent two time-frequency resources are separated by 1 TTI, and the frequency domain positions and sizes of the PSCCH and PSSCH of these four time-frequency resources are the same. Figure 3-4 exemplarily shows another time-frequency resource pattern. As shown in the figure, one transmission resource block includes 4 time-frequency resources, and each time-frequency resource occupies 1 TTI in the time domain. The first The second and second time-frequency resources are continuous in the time domain, the third and fourth time-frequency resources are continuous in the time domain, and the second and third time-frequency resources are separated by 2 TTIs. The frequency domain positions and sizes of the PSCCH and PSSCH of the time-frequency resource are the same.
(4)N個時頻資源中至少有2個時頻資源在時域上不連續, 並且該N個時頻資源中至少有2個時頻資源的頻域資源不同(比如頻域位置和/或頻域大小不同),比如,該N個時頻資源在時域上和頻域上按照設定的時頻資源圖樣進行聯合跳頻。符合該種關聯關係的時頻資源圖樣可以有多種。所有可能的時頻資源圖樣中的全部或部分可組成時頻資源圖樣集合,資料發送方終端可使用該集合中的時頻資源圖樣確定資料傳輸的時頻資源。集合中時頻資源圖樣數量與N的取值可存在對應關係,該對應關係可以是協議約定的,也可以是配置的。即,可針對每種N的取值,設置對應的時頻資源圖樣集合。 (4) At least 2 of the N time-frequency resources are not continuous in the time domain, And at least 2 of the N time-frequency resources have different frequency-domain resources (such as different frequency-domain positions and/or frequency-domain sizes), for example, the N time-frequency resources are in the time domain and the frequency domain Joint frequency hopping is performed according to the set time-frequency resource pattern. There may be multiple patterns of time-frequency resources that conform to this association relationship. All or part of all possible time-frequency resource patterns may form a set of time-frequency resource patterns, and the terminal of the data sender may use the time-frequency resource patterns in the set to determine the time-frequency resources for data transmission. There may be a correspondence between the number of time-frequency resource patterns in the set and the value of N, and the correspondence may be agreed by the protocol or configured. That is, for each value of N, a corresponding set of time-frequency resource patterns can be set.
進一步地,本關聯方式中,N個時頻資源在頻域上採用了跳頻,可使用的時頻資源圖樣與資料包佔用的頻域資源的大小有關。例如,若每個時頻資源的頻域連續時,不同的時頻資源的大小將影響時頻資源圖樣的選擇。 Further, in this association mode, the N time-frequency resources adopt frequency hopping in the frequency domain, and the available time-frequency resource pattern is related to the size of the frequency domain resources occupied by the data packet. For example, if the frequency domain of each time-frequency resource is continuous, the size of different time-frequency resources will affect the selection of the time-frequency resource pattern.
圖3-5示例性地示出了其中的一種時頻資源圖樣,如圖所示,一個傳輸資源塊中包括4個時頻資源,每個時頻資源在時域上佔用1個TTI,相鄰的兩個時頻資源之間間隔1個TTI,這4個時頻資源的PSCCH的頻域位置各不相同,且這4個時頻資源的PSSCH的頻域位置各不相同。圖3-6示例性地示出了另一種時頻資源圖樣,如圖所示,一個傳輸資源塊中包括4個時頻資源,每個時頻資源在時域上佔用1個TTI,第一個和第二個時頻資源在時域上連續,第三個和第四個時頻資源在時域上連續,第二個和第三個時頻資源之間間隔2個TTI,這4個時頻資源的PSCCH的頻域位置各不相同,且這4個時頻資源的PSSCH的頻域位置各不相同。 Figure 3-5 exemplarily shows one of the time-frequency resource patterns. As shown in the figure, one transmission resource block includes 4 time-frequency resources, and each time-frequency resource occupies 1 TTI in the time domain. There is a TTI between two adjacent time-frequency resources. The frequency domain positions of the PSCCHs of the four time-frequency resources are different, and the frequency domain positions of the PSSCHs of the four time-frequency resources are different. 3-6 exemplarily show another pattern of time-frequency resources. As shown in the figure, one transmission resource block includes 4 time-frequency resources, and each time-frequency resource occupies 1 TTI in the time domain. The first The second and second time-frequency resources are continuous in the time domain, the third and fourth time-frequency resources are continuous in the time domain, and the second and third time-frequency resources are separated by 2 TTIs. The frequency domain positions of the PSCCH of the time-frequency resources are different, and the frequency domain positions of the PSSCH of the four time-frequency resources are different.
本發明實施例中,傳輸資源塊的數量(即M的取值)可以 是由系統組態的,也可以是預配置的,還可以是動態確定出的(比如由基地台確定或由資料發送方終端確定);一個傳輸資源塊中包含的時頻資源的數量(即N的取值)可以是由系統組態的,也可以是預配置的,還可以是動態確定出的(比如由基地台確定或由資料發送方終端確定)。其中,在M和/或N的取值由系統組態的一個例子中,網路設備(比如基地台)可基於終端進行配置,比如,網路設備通過半靜態方式配置M和/或N的取值,並通過無線資源控制(radio resource control,RRC)信令將配置的M和/或N的取值發送給終端;在M和/或N的取值由系統組態的另一個例子中,網路設備為所有終端配置相同的M和/或N的取值,並通過廣播方式通知給終端。 在M和/或N的取值為預配置的一個例子中,可在協議中預先約定M和/或N的取值。在M和/或N的取值通過動態方式確定的一個例子中,網路設備(如基地台)可通過下行控制資訊(downlink control information,DCI)將M和/或N的取值發送給終端,其中基地台可根據業務類型或業務優先順序確定M和/或N的取值;在M和/或N的取值通過動態方式確定的另一個例子中,資料發送方終端可根據需要傳輸的資料所屬的業務類型或業務優先順序確定M和/或N的取值。在另外的例子中,可預先根據不同的傳輸次數設置對應的資源池,資料發送方終端或基地台可根據資料傳輸次數從相應的資源池中選擇時頻資源,為資料發送方終端確定直通鏈路上的資料發送資源。 In the embodiment of the present invention, the number of transmission resource blocks (that is, the value of M) can be It is configured by the system, it can also be pre-configured, or it can be determined dynamically (for example, by the base station or by the terminal of the data sender); the number of time-frequency resources contained in a transmission resource block (ie The value of N) can be configured by the system, it can be pre-configured, or it can be determined dynamically (for example, by the base station or by the terminal of the data sender). Among them, in an example where the values of M and/or N are configured by the system, network equipment (such as a base station) can be configured based on the terminal, for example, the network equipment configures M and/or N in a semi-static manner Value, and send the configured values of M and/or N to the terminal through radio resource control (RRC) signaling; in another example where the values of M and/or N are configured by the system , The network equipment configures the same value of M and/or N for all terminals, and notifies the terminals by broadcasting. In an example where the values of M and/or N are pre-configured, the values of M and/or N may be pre-agreed in the protocol. In an example where the values of M and/or N are determined dynamically, a network device (such as a base station) can send the values of M and/or N to the terminal through downlink control information (DCI) , Where the base station can determine the value of M and/or N according to the service type or service priority; in another example where the value of M and/or N is determined dynamically, the terminal of the data sender can transmit The business type or business priority to which the data belongs determines the value of M and/or N. In another example, the corresponding resource pool can be set according to different transmission times in advance, and the data sender terminal or base station can select time-frequency resources from the corresponding resource pool according to the data transmission times to determine the through link for the data sender terminal Sending resources on the road.
如果M的取值是由系統組態的或是預配置的,則可以不用將M的取值攜帶於SA資訊中;同理,如果N的取值是由系統組態的或是預配置的,則可以不用將N的取值攜帶與SA資訊中。如果M的取值是動 態確定出的,則可通過SA資訊將該M的取值以顯式或隱式的方式進行指示;同理,如果N的取值是動態確定出的,則可通過SA資訊將該N的取值以顯式或隱式的方式進行指示。通過動態方式確定M和/或N的取值,並通過SA資訊進行指示,可以實現M和/或N的動態變化,提高了系統靈活性。 If the value of M is configured or pre-configured by the system, you do not need to carry the value of M in the SA information; Similarly, if the value of N is configured or pre-configured by the system , You do not need to carry the value of N with SA information. If the value of M is dynamic If the status is determined, the value of M can be indicated in an explicit or implicit manner through SA information; in the same way, if the value of N is dynamically determined, the value of N can be determined through SA information The value is indicated in an explicit or implicit manner. By determining the value of M and/or N in a dynamic manner and indicating it through SA information, the dynamic change of M and/or N can be achieved and the flexibility of the system is improved.
下面示例性地示出了幾種M和N的配置方法和指示方法:方法1:M和N的取值均通過系統組態,SA資訊中可攜帶也可不攜帶M和N的取值的指示資訊,也可以通過其他信令將M和N的取值通知給終端;進一步地,通知M和N的取值時,M和N的取值可以通過聯合指示的方式以降低信令開銷;方法2:M和N的取值均通過預配置,SA資訊中可攜帶也可不攜帶M和N的取值的指示資訊,也可以通過其他信令將M和N的取值通知給終端;進一步地,通知M和N的取值時,M和N的取值可以通過聯合指示的方式以降低信令開銷;方法3:M的取值通過系統組態或者預配置,N的取值通過動態配置,SA資訊中可不攜帶M的取值的指示資訊,N的取值攜帶在SA資訊中;方法4:M的取值通過動態確定,N的取值通過系統組態或者預配置,M的取值攜帶在SA資訊中,SA資訊中可不攜帶N的取值的指示資訊;方法5:M和N的取值均通過動態確定,因此均攜帶於SA資訊中;進一步地,在SA資訊中,M和N的取值可以通過聯合指示的方式以降低信令開銷。 The following exemplarily shows several configuration methods and indication methods of M and N: Method 1: The values of M and N are all configured by the system, and the SA information may or may not carry the indication of the values of M and N Information, you can also notify the terminal of the values of M and N through other signaling; further, when the values of M and N are notified, the values of M and N can be jointly indicated to reduce signaling overhead; method 2: The values of M and N are pre-configured. The SA information may or may not carry the indication information of the values of M and N, and may also notify the terminal of the values of M and N through other signaling; further , When the values of M and N are notified, the values of M and N can be jointly indicated to reduce signaling overhead; Method 3: The value of M is configured or pre-configured by the system, and the value of N is dynamically configured , SA information may not carry the indication information of the value of M, the value of N is carried in the SA information; Method 4: The value of M is determined dynamically, the value of N is determined by system configuration or pre-configuration, the value of M The value is carried in the SA information, and the SA information may not carry the indication information of the value of N; Method 5: The values of M and N are determined dynamically, so they are both carried in the SA information; further, in the SA information, The values of M and N can be jointly indicated to reduce signaling overhead.
可選地,M的取值和/或N的取值可以與業務類型或者業務 優先順序相關。對於需要高可靠性的終端來說,可以通過提高M或N中的一個值來增加資料重傳的次數,從而達到提高可靠性的目的,比如可以在M取值固定的情況下,通過增加N的取值的方式來提高傳輸的可靠性,這種方式與增加M的取值方式相比,可以減少信令開銷。作為一個例子,在M取值為2的情況下,由於不同的業務類型或者不同的業務優先順序有著不同的傳輸可靠性的要求,因此終端可根據業務類型或者業務優先順序確定N的取值。 Optionally, the value of M and/or the value of N may be related to the service type or service Priority is related. For terminals that require high reliability, you can increase the number of data retransmissions by increasing one of M or N to achieve the purpose of improving reliability. For example, you can increase N by fixing N when the value of M is fixed. To improve the reliability of transmission. Compared with increasing the value of M, this method can reduce signaling overhead. As an example, in the case where the value of M is 2, since different service types or different service priorities have different requirements for transmission reliability, the terminal may determine the value of N according to the service type or service priority.
可選地,可預先定義業務類型或業務優先順序與傳輸資源塊數量(即M的取值)之間的對應關係,和/或,業務類型或業務優先順序與一個傳輸資源塊中包含的時頻資源數量(即N的取值)之間的對應關係。 由於M和/或N的取值可以與業務類型或業務優先順序對應,因此在SA資訊中攜帶有業務優先順序資訊或業務類型資訊的情況下,可以不在SA資訊中攜帶M和/或N的取值,而是由業務優先順序資訊或業務類型資訊隱式地指示出M和/或N的取值,即可根據業務優先順序資訊或業務類型資訊確定M和/或N的取值。 Optionally, the correspondence between the service type or service priority order and the number of transmission resource blocks (that is, the value of M) may be pre-defined, and/or the service type or service priority order and the time included in a transmission resource block Correspondence between the number of frequency resources (that is, the value of N). Since the value of M and/or N can correspond to the business type or business priority, in the case of SA information carrying business priority information or business type information, it is not necessary to carry M and/or N in SA information Value, but the value of M and/or N is implicitly indicated by business priority information or business type information, and the value of M and/or N can be determined according to business priority information or business type information.
相應地,如果發送方終端的SA資訊中包含了業務優先順序資訊或者業務類型資訊,且業務優先順序或者業務類型與M或者N的取值有著一一對應的關係,則接收方終端可以根據SA資訊中的業務優先順序資訊或者業務類型資訊確定M或者N的取值。在具體實施時,可設置業務優先順序或者業務類型與N的取值之間的對應關係。 Correspondingly, if the SA information of the sender terminal includes service priority order information or service type information, and the service priority order or service type has a one-to-one correspondence with the value of M or N, the receiver terminal can use the SA The business priority information or business type information in the information determines the value of M or N. In specific implementation, the correspondence between the service priority order or service type and the value of N can be set.
本發明實施例中,資料發送方終端發送的資料中包括SA資訊以及該SA資訊所關聯的資料。其中,SA資訊的發送位置以及所包含的 內容可採用以下方案實現。 In the embodiment of the present invention, the data sent by the data sending terminal includes SA information and data related to the SA information. Among them, the location of the SA information and the included The content can be realized by the following scheme.
方案1:每個傳輸資源塊中,僅在該傳輸資源塊包含的N個時頻資源中的一個時頻資源上發送SA資訊,即,每個傳輸資源塊只有一個關聯的SA資訊伴隨發送。圖4示例性地示出了採用該方案1發送SA資訊的示意圖。如圖所示,資料發送方終端通過2個傳輸資源塊在直通鏈路上發送資料,每個傳輸資源塊中包括4個時頻資源,每個時頻資源在時域上的長度為一個TTI。對於每個傳輸資源塊,SA資訊僅在該傳輸資源塊中的第一個TTI中發送。
Scenario 1: In each transmission resource block, SA information is sent on only one of the N time-frequency resources contained in the transmission resource block, that is, only one associated SA information is sent with each transmission resource block. FIG. 4 exemplarily shows a schematic diagram of sending SA information by using the
在採用方案1的一個例子中,SA資訊中至少包括:該傳輸資源塊的時頻資源指示資訊,該指示資訊可通過該傳輸資源塊包括的N個時頻資源中第一個時頻資源的位置表徵。該傳輸資源塊包括的N個時頻資源的位置可根據該第一個時頻資源的位置以及該N個時頻資源的時頻資源圖樣確定。其中,該N個時頻資源的時頻資源圖樣的索引值可攜帶在該SA資訊中。在該N個時頻資源的時頻資源圖樣的索引值為預先配置或預先約定的情況下,SA資訊中可不攜帶該N個時頻資源的時頻資源圖樣的索引值。
In an example of adopting the
方案2:一個傳輸資源塊中,在該傳輸資源塊包含的N個時頻資源中的每個時頻資源上均發送SA資訊,即,在每個傳輸資源塊中的每個時頻資源發送資料時均有一個伴隨的SA資訊。該方案的一個示例可如圖2所示,資料發送方終端通過2個傳輸資源塊在直通鏈路上發送資料,每個傳輸資源塊中包括4個時頻資源,每個時頻資源在時域上的長度為一個TTI。 對於每個傳輸資源塊,SA資訊在該傳輸資源塊中的每個TTI中發送。不同 的TTI中,SA資訊所佔用的頻域位置可以相同也可以不同。 Scenario 2: In a transmission resource block, SA information is sent on each of the N time-frequency resources included in the transmission resource block, that is, each time-frequency resource in each transmission resource block is sent The information is accompanied by an SA message. An example of this solution can be shown in Figure 2. The data sender terminal sends data on the direct link through 2 transmission resource blocks. Each transmission resource block includes 4 time-frequency resources, and each time-frequency resource is in the time domain. The length above is one TTI. For each transmission resource block, SA information is sent in each TTI in the transmission resource block. different In TTI, the frequency domain positions occupied by SA information can be the same or different.
在採用方案2的一個例子中,以時頻資源A表示一個傳輸資源塊中的任一時頻資源,則該傳輸資源塊中時頻資源A上發送的SA資訊中至少包括:該傳輸資源塊的時頻資源指示資訊以及時頻資源A是該傳輸資源塊中的第幾個時頻資源的指示資訊。其中,該傳輸資源塊的時頻資源指示資訊可通過該傳輸資源塊包括的N個時頻資源中第一個時頻資源的位置表徵。時頻資源A的位置可根據第一個時頻資源的位置、時頻資源A是該傳輸資源塊中的第幾個時頻資源的指示資訊,以及該傳輸資源塊包括的N個時頻資源的時頻資源圖樣確定。其中,該N個時頻資源的時頻資源圖樣的索引值可攜帶在該SA資訊中。在該N個時頻資源的時頻資源圖樣的索引值為預先配置或預先約定的情況下,SA資訊中可不攜帶該N個時頻資源的時頻資源圖樣的索引值。 In an example of using scheme 2, if time-frequency resource A represents any time-frequency resource in a transmission resource block, then the SA information sent on time-frequency resource A in the transmission resource block includes at least: the transmission resource block’s The time-frequency resource indication information and the time-frequency resource A are indication information of the number of time-frequency resources in the transmission resource block. Wherein, the time-frequency resource indication information of the transmission resource block can be characterized by the position of the first time-frequency resource among the N time-frequency resources included in the transmission resource block. The location of the time-frequency resource A can be based on the location of the first time-frequency resource, the time-frequency resource A is the indication information of the number of time-frequency resources in the transmission resource block, and the N time-frequency resources included in the transmission resource block The time-frequency resource pattern is determined. The index value of the time-frequency resource pattern of the N time-frequency resources may be carried in the SA information. When the index values of the time-frequency resource patterns of the N time-frequency resources are pre-configured or pre-agreed, the SA information may not carry the index values of the time-frequency resource patterns of the N time-frequency resources.
在採用方案2的另一個例子中,以時頻資源A表示一個傳輸資源塊中的任一時頻資源,則該傳輸資源塊中時頻資源A上發送的SA資訊中至少包括:時頻資源A的位置、時頻資源A是該傳輸資源塊中的第幾個時頻資源的指示資訊。時頻資源A的位置可根據時頻資源A是該傳輸資源塊中的第幾個時頻資源的指示資訊以及該傳輸資源塊包括的N個時頻資源的時頻資源圖樣確定。採用這種方法,在新終端(本發明實施例中的終端)與傳統(legacy)終端共存的情況下,傳統終端可以根據新終端SA資訊確定傳輸資源,從而可以在進行直通鏈路的傳輸資源選擇時避免發生資源衝突。 In another example of using scheme 2, if time-frequency resource A represents any time-frequency resource in a transmission resource block, then the SA information sent on time-frequency resource A in the transmission resource block includes at least: time-frequency resource A , The time-frequency resource A is the indication information of the number of time-frequency resources in the transmission resource block. The location of the time-frequency resource A can be determined according to the indication information of the time-frequency resource A in the transmission resource block and the time-frequency resource pattern of the N time-frequency resources included in the transmission resource block. With this method, when a new terminal (a terminal in the embodiment of the present invention) coexists with a legacy terminal, the traditional terminal can determine transmission resources according to the SA information of the new terminal, so that the transmission resources of the direct link can be performed Avoid resource conflicts when choosing.
根據上述實施例,一個傳輸資源塊的位置可通過該傳輸資源 塊中的第一個時頻資源的位置來指示。具體地,一個傳輸資源塊中的第一個時頻資源的位置可以分別通過時域和頻域資源位置進行指示,具體如下: 一個傳輸資源塊中第一個時頻資源的頻域資源位置可以是以PRB為單位,也可以是一個PRB組(或者稱之為子通道)為單位。如果佔用連續的頻域資源,則可以簡化為頻域的起點和佔用的頻域資源的長度(比如多少個PRB或多少個子通道)。多個傳輸資源塊的位置可採用聯合指示的方式,也可採用獨立指示的方式。 According to the above embodiment, the location of a transmission resource block can be determined by the transmission resource The location of the first time-frequency resource in the block is indicated. Specifically, the position of the first time-frequency resource in a transmission resource block can be indicated by the time-domain and frequency-domain resource positions, respectively, as follows: The frequency domain resource position of the first time-frequency resource in a transmission resource block may be in units of PRBs, or it may be a unit of PRB groups (or subchannels). If continuous frequency domain resources are occupied, it can be simplified to the starting point of the frequency domain and the length of the occupied frequency domain resources (such as how many PRBs or how many sub-channels). The positions of multiple transmission resource blocks may be jointly indicated or independently indicated.
一個傳輸資源塊中第一個時頻資源的時域資源位置,可採用以下方式進行指示:方法1:通過與第一個傳輸資源塊的TTI偏移個數進行指示,系統需要指示M-1個偏移值。當M=1時,相當於只有一次資料傳輸,則此時偏移值的取值為0;方法2:通過與前一個傳輸資源塊的TTI偏移個數進行指示,系統需要指示M-1個偏移值。當M=1時,相當於只有一次資料傳輸,則此時偏移值的取值為0;方法3:通過一個從參考TTI開始的固定長度的時間視窗內的時頻資源圖樣的索引值確定,例如,視窗長度為8,有M個傳輸資源塊,M小於等於8,那麼視窗的最大時頻資源圖樣個數相當於任意從8個TTI中選擇M個,每個時頻資源圖樣的索引對應一種時頻資源圖樣。其中有至少一個時頻資源圖樣的索引用於表示M等於1的情況。 The time-domain resource position of the first time-frequency resource in a transmission resource block can be indicated in the following manner: Method 1: The number of TTI offsets from the first transmission resource block is used for indication. The system needs to indicate M-1 Offset values. When M=1, it is equivalent to only one data transmission, then the value of the offset value is 0; Method 2: The TTI offset from the previous transmission resource block is used to indicate, the system needs to indicate M-1 Offset values. When M=1, it is equivalent to only one data transmission, then the offset value is 0; Method 3: Determined by the index value of the time-frequency resource pattern in a fixed-length time window starting from the reference TTI For example, if the window length is 8, there are M transmission resource blocks, and M is less than or equal to 8, then the maximum number of time-frequency resource patterns of the window is equivalent to arbitrarily selecting M from 8 TTIs, and the index of each time-frequency resource pattern Corresponding to a kind of time-frequency resource pattern. The index of at least one time-frequency resource pattern is used to indicate the case where M is equal to 1.
通過上述對傳輸資源塊的時域資源的指示方法,可以隱式地 指示M的取值。 Through the above method for indicating the time domain resources of the transmission resource block, it can be implicitly Indicates the value of M.
根據上述實施例,SA資訊的配置方法和/或指示方法不同,一個傳輸資源塊中的時頻資源位置的確定方法也可能不同,比如上述方案1和方案2。進一步地,一個傳輸資源塊中的時頻資源位置的確定方法還可與一個傳輸資源塊中N個時頻資源所採用的時頻資源圖樣個數有關。例如,以圖3-1所示的時頻資源圖樣為例,由於只有一種時頻資源圖樣,因此不需要通過信令指示,資料接收方終端可根據該種時頻資源圖樣(該時頻資源圖樣可預先約定)以及SA資訊中攜帶的內容(比如第一個時頻資源的位置以及一個時頻資源是所在傳輸資源塊中的第幾個時頻資源的指示資訊)確定相應時頻資源的位置。對於有多種時頻資源圖樣可選擇使用的情況,則可進一步結合時頻資源的時頻資源圖樣索引值來確定該時頻資源的位置。
According to the foregoing embodiment, the method of configuring and/or indicating the SA information is different, and the method of determining the location of the time-frequency resource in a transmission resource block may also be different, such as the above-mentioned
根據上述實施例,SA資訊可包括當前資料傳輸是第幾次資料傳輸的指示資訊,比如,該指示資訊具體可以是用於指示當前進行資料傳輸的TTI是所在傳輸資源塊中的第幾個TTI的指示資訊。該指示資訊也可以是HARQ冗餘版本的指示資訊,比如,如果HARQ冗餘版本與傳輸次數之間存在約定關係,則兩者是等效的。例如,若配置了固定的HARQ冗餘版本的順序,則根據該指示資訊可確定對應的HARQ冗餘版本。 According to the foregoing embodiment, the SA information may include indication information that the current data transmission is the number of data transmissions. For example, the indication information may specifically be used to indicate that the TTI currently performing data transmission is the number of TTIs in the transmission resource block. Instructions. The indication information may also be indication information of the HARQ redundancy version. For example, if there is an agreed relationship between the HARQ redundancy version and the number of transmissions, the two are equivalent. For example, if a fixed sequence of HARQ redundancy versions is configured, the corresponding HARQ redundancy version can be determined according to the instruction information.
進一步地,基於上述方案1或方案2中所發送的SA資訊,該SA資訊中還可包括以下資訊中的一個或任意多個:(1)一個時頻資源屬於M個傳輸資源塊中的第幾個傳輸資源塊的指示資訊。比如,該指示資訊可以指示當前時頻資源(如SA資訊所關聯的時頻資源)屬於M個傳輸資源塊中的第幾個傳輸資源塊;
(2)傳輸資源塊數量(即M的取值)的指示資訊。如前述實施例所述,SA資訊中可攜帶也可不攜帶該指示資訊,M的取值也可根據SA資訊中攜帶的其他資訊(比如業務優先順序資訊)進行隱式地指示,也可以通過每個傳輸資源塊的時域資源的指示方法隱式地指示M的取值;(3)一個傳輸資源塊中包含的用於資料傳輸的時頻資源的數量(即N的取值)的指示資訊。如前述實施例所述,SA資訊中可攜帶也可不攜帶該指示資訊,N的取值也可根據SA資訊中攜帶的其他資訊(比如業務優先順序資訊)進行隱式地指示。
Further, based on the SA information sent in the
進一步地,SA資訊中還可包括以下資訊中的一個或任何組合:(4)業務優先順序資訊或業務類型資訊。業務優先順序可包括多種,比如包括8種,此種情況下該資訊的長度可為3位元;(5)資源預約週期索引值。該索引值的長度可以是4位元,用以表示資源的預約週期,也即當前SA資訊指示的資源會在下一個預約週期時繼續使用。其中資源預約週期索引值與資源預約週期的對應關係可由高層信令配置;(6)重傳佔用的頻域資源位置指示資訊,具體可以是頻域資源的起點和長度。該指示資訊的長度最多可為8位元,用於指示當前SA資訊指示的初傳和重傳的資料佔用的頻率資源;(7)初傳/重傳的時間間隔,該指示資訊的長度可以是4位元,當只有一次傳輸的時候,該指示資訊的取值為0;(8)調製與編碼方案(MCS),該資訊的長度可以是5位元; (9)重傳指示,該資訊的長度可以是1位元,用於指示與當前SA資訊關聯的資料是初傳還是重傳。 Further, the SA information may also include one or any combination of the following information: (4) Business priority information or business type information. The service priority order may include multiple types, such as 8 types. In this case, the length of the information may be 3 bits; (5) Resource reservation period index value. The length of the index value may be 4 bits, which is used to indicate the resource reservation period, that is, the resource indicated by the current SA information will continue to be used in the next reservation period. The corresponding relationship between the index value of the resource reservation period and the resource reservation period can be configured by high-level signaling; (6) Retransmitting the location indication information of the occupied frequency domain resource, which may specifically be the starting point and length of the frequency domain resource. The length of the indication information can be up to 8 bits, which is used to indicate the frequency resources occupied by the data of the initial transmission and retransmission indicated by the current SA information; (7) The time interval of the initial transmission/retransmission, the length of the indication information can be It is 4 bits, when there is only one transmission, the value of the indication information is 0; (8) Modulation and coding scheme (MCS), the length of the information can be 5 bits; (9) Retransmission instruction, the length of the information can be 1 bit, used to indicate whether the data associated with the current SA information is the initial transmission or retransmission.
基於上述實施例所描述的用於資料傳輸的直通鏈路資源,本發明實施例提供了資料傳輸方法。參見圖5,為本發明實施例提供的資料傳輸方法的流程示意圖,如圖所示,該流程可包括:S501:終端確定直通鏈路上的傳輸資源。 Based on the straight-through link resources used for data transmission described in the above embodiments, the embodiments of the present invention provide a data transmission method. Referring to FIG. 5, it is a schematic flowchart of a data transmission method according to an embodiment of the present invention. As shown in the figure, the process may include: S501: A terminal determines a transmission resource on a through link.
該步驟中,終端可基於自發選擇的方式確定直通鏈路上的傳輸資源,也可基於基地台分配的方式,獲得基地台所分配的直通鏈路上的傳輸資源。 In this step, the terminal may determine the transmission resources on the through link based on the method of spontaneous selection, or may obtain the transmission resources on the through link allocated by the base station based on the method of base station allocation.
其中,若終端基於自發選擇的方式確定直通鏈路上的傳輸資源,則可採用現有技術提供的方法進行資源選擇,也可以採用本發明實施例提供的方法進行資源選擇(該方法可參見圖7)。 Wherein, if the terminal determines the transmission resources on the through link based on the spontaneous selection, the method provided by the prior art may be used for resource selection, or the method provided by the embodiment of the present invention may be used for resource selection (for the method, see FIG. 7). .
若終端基於基地台分配的方式獲得直通鏈路上的傳輸資源,則基地台向終端發送的下行控制資訊(downlink control information,DCI)中可包括以下資訊中的一個或任意多個,以便終端將這些資訊攜帶在SA資訊中:(1)M個傳輸資源塊的時頻資源位置指示資訊,其中一個傳輸資源塊的時頻資源位置是通過該傳輸資源塊中N個時頻資源中第一個時頻資源的位置表徵的;(2)每個傳輸資源塊中N個時頻資源的時頻資源位置指示資訊。 If the terminal obtains transmission resources on the through link based on the allocation method of the base station, the downlink control information (DCI) sent by the base station to the terminal may include one or more of the following information, so that the terminal The information is carried in SA information: (1) Time-frequency resource location indication information of M transmission resource blocks, the time-frequency resource location of one transmission resource block is the first time through the N time-frequency resources in the transmission resource block The position of the frequency resource is characterized; (2) Time-frequency resource position indication information of N time-frequency resources in each transmission resource block.
上述兩種指示資訊的具體實現方式,可參見前述實施例,在此不再重複。 The specific implementation manners of the above two kinds of indication information can be referred to the foregoing embodiments, and will not be repeated here.
S502:終端根據S501中確定出的傳輸資源,在直通鏈路的M個傳輸資源塊上發送資料,其中一個傳輸資源塊中至少包括N個用於資料發送的時頻資源。 S502: The terminal sends data on M transmission resource blocks of the through link according to the transmission resources determined in S501, where one transmission resource block includes at least N time-frequency resources for data transmission.
其中,資料發送方終端在直通鏈路上發送的資料所使用的時頻資源,可參見前述實施例的描述,在此不再重複。 For the time-frequency resources used by the data sending terminal on the direct link for the data, refer to the description of the foregoing embodiment, which will not be repeated here.
對於接收端來說,接收直通鏈路上傳輸的調度分配資訊SA,根據該SA資訊,在直通鏈路的M個傳輸資源塊上接收資料,其中一個傳輸資源塊中至少包括N個用於資料發送的時頻資源。其中,與前述實施例相同或相應之處不再重複。 For the receiving end, it receives the scheduling allocation information SA transmitted on the through link, and receives data on the M transmission resource blocks of the through link according to the SA information, where at least N of one transmission resource block is used for data transmission Time-frequency resources. Wherein, the same as or corresponding to the foregoing embodiments will not be repeated.
為了更清楚地理解本發明實施例提供的方案,下面以幾個具體應用場景為例進行描述。 In order to more clearly understand the solutions provided by the embodiments of the present invention, the following uses several specific application scenarios as examples for description.
場景1:M值最大為2,N可以是變化的值(即可動態確定)。一個傳輸資源塊中的N個時頻資源的時頻資源圖樣採用圖3-1所示的方式,並且M個傳輸資源塊傳輸的是相同的資料包。若沿用Rel-14 LTE V2X中SA資訊的設計,且SA資訊和其關聯的資料在同一個TTI中傳輸,則通過本發明實施例提供的SA資訊能夠傳輸的資訊如下所示:- 業務優先順序資訊;- 資源預約週期索引值:用以表示資源的預約週期,也即當前SA資訊指示的資源會在下一個預約週期時繼續使用。其中資源預約週期索引值與資源預約週期的對應關係是高層信令配置的;- 第二個傳輸資源塊的頻域資源指示資訊,因為M=2,所以可以認為是重用Rel-14 SA中重傳佔用的頻域資源位置的定義; - 第一次傳輸資源塊和第二次傳輸資源塊之間的TTI間隔,因為M=2,所以可以認為是重用Rel-14 SA中初傳/重傳的時間間隔的定義,如果為0,表示當前只有第一次傳輸;- 調製與編碼方式指示;- 第一次/第二次傳輸資源塊的標識資訊:1位元,表示當前傳輸資源塊是第一次傳輸資源塊還是第二次傳輸資源塊。因為M=2,所以可以認為是重用Rel-14 SA中可以重用初傳/重傳的標識資訊的定義;- 傳輸資源塊中包含的時頻資源的個數N,這裡認為兩個傳輸資源塊中包含的時頻資源的個數相同;- 當前傳輸資源次數的指示資訊,表徵當前傳輸資源是當前傳輸資源塊的第幾個時頻資源。 Scenario 1: The maximum value of M is 2, and N can be a changed value (that is, it can be dynamically determined). The time-frequency resource patterns of the N time-frequency resources in one transmission resource block adopt the manner shown in FIG. 3-1, and the M transmission resource blocks transmit the same data packet. If the design of SA information in Rel-14 LTE V2X is followed, and SA information and its associated data are transmitted in the same TTI, the information that can be transmitted through SA information provided by the embodiments of the present invention is as follows:-Service priority Information;-Resource reservation cycle index value: used to indicate the resource reservation cycle, that is, the resource indicated by the current SA information will continue to be used in the next reservation cycle. The corresponding relationship between the index value of the resource reservation period and the resource reservation period is configured by high-level signaling;-The frequency domain resource indication information of the second transmission resource block, because M=2, it can be considered to reuse the Rel-14 SA Definition of the frequency domain resource location occupied by transmission; -The TTI interval between the first transmission resource block and the second transmission resource block, because M=2, it can be considered to reuse the definition of the initial transmission/retransmission time interval in Rel-14 SA, if it is 0, Indicates that there is currently only the first transmission;-Modulation and coding mode indication;-Identification information of the first/second transmission resource block: 1 bit, indicating whether the current transmission resource block is the first transmission resource block or the second transmission Transmission resource block. Because M=2, it can be considered to reuse the definition of the identification information that can be reused for initial transmission/retransmission in Rel-14 SA;-The number of time-frequency resources contained in the transmission resource block N, here two transmission resource blocks are considered The number of time-frequency resources included is the same;-The indication information of the number of current transmission resources indicates the number of time-frequency resources of the current transmission resource block.
場景2:M值最大為2,N可以是變化的值(即可動態確定),一個傳輸塊中的N個時頻資源的時頻資源圖樣採用圖3-2至圖3-6中的一種,並且M個傳輸資源塊傳輸的是相同的資料包。沿用Rel-14 LTE V2X中SA的設計,且SA資訊和關聯的資料在同一個TTI中傳輸,則本發明實施例中的SA資訊承載的內容可在上述場景1的基礎上增加以下資訊:- 第一個傳輸資源塊中N個時頻資源的時頻資源圖樣的指示資訊;- 第二個傳輸資源塊中N個時頻資源的時頻資源圖樣的指示資訊。
Scenario 2: The maximum value of M is 2, and N can be a variable value (that is, it can be dynamically determined). The time-frequency resource pattern of N time-frequency resources in a transport block adopts one of Figures 3-2 to 3-6 , And M transmission resource blocks transmit the same data packet. Following the design of SA in Rel-14 LTE V2X, and SA information and associated data are transmitted in the same TTI, the content carried by SA information in the embodiment of the present invention can add the following information on the basis of
其中,時頻資源圖樣的指示資訊信令開銷的大小與時頻資源圖樣的個數直接相關。 Among them, the size of the indication information signaling overhead of the time-frequency resource pattern is directly related to the number of time-frequency resource patterns.
場景3:M值最大為2,N可以是變化的值(即可動態確定),一個傳輸資源塊中的N個時頻資源的時頻資源圖樣採用圖3-1所示的方式,並且M個傳輸資源塊傳輸的可以是不同的資料包。沿用Rel-14 LTE V2X中SA的設計,且SA資訊和關聯的資料在同一個TTI中傳輸,則SA資訊在實施例1中所承載的資訊的基礎上增加以下資訊:- 初傳/重傳指示資訊:1位元,用於指示當前傳輸資源塊是初傳還是重傳。 Scenario 3: The maximum value of M is 2, N can be a variable value (that is, it can be dynamically determined), the time-frequency resource pattern of N time-frequency resources in a transmission resource block adopts the method shown in FIG. 3-1, and M The transmission resource blocks can transmit different data packets. Following the design of SA in Rel-14 LTE V2X, and the SA information and associated data are transmitted in the same TTI, the SA information adds the following information on the basis of the information carried in Example 1:-Initial transmission/retransmission Indication information: 1 bit, used to indicate whether the current transmission resource block is an initial transmission or a retransmission.
其中,時頻資源圖樣的指示資訊信令開銷的大小與時頻資源圖樣的個數直接相關。 Among them, the size of the indication information signaling overhead of the time-frequency resource pattern is directly related to the number of time-frequency resource patterns.
本發明實施例還提供了由資料發送方終端自發選擇直通鏈路上的資料發送資源的方法。本發明實施例中,終端可選擇出M個傳輸資源塊用於資料發送。其中,以下實施例中關係到的名詞術語與前述實施例的含義一致,比如,傳輸資源塊的相關定義以及所包括的時頻資源,以及時頻資源圖樣的定義等,可參見前述實施例。 The embodiment of the present invention also provides a method for the data sending terminal to spontaneously select the data sending resource on the through link. In the embodiment of the present invention, the terminal may select M transmission resource blocks for data transmission. The terminology related to the following embodiments is consistent with the meaning of the foregoing embodiments. For example, related definitions of transmission resource blocks, included time-frequency resources, and definitions of time-frequency resource patterns can be found in the foregoing embodiments.
總體來說,本發明實施例提供了兩種資源選擇方案。 In general, the embodiments of the present invention provide two resource selection solutions.
資源選擇方案一 Resource choice one
終端可選擇出M*N個時頻資源,將選擇出來的M*N個時頻資源在時間上進行排序,排序後的M*N個時頻資源表示為t 1,...,t M*N ,對於排序後的M*N個時頻資源,每N個時頻資源構成一個傳輸資源塊,得到M個傳輸資源塊,該M個傳輸資源塊對應的TTI表示為{t 1,...,t N },{t N+1,...,t 2N },...,{t (M-1)*N+1,...,t M*N }。該M個傳輸資源塊即為該發送方終端選擇出的用於發送資料的資源。 The terminal can select M*N time-frequency resources, and sort the selected M*N time-frequency resources in time. The sorted M*N time-frequency resources are represented as t 1 ,..., t M * N , for the sorted M*N time-frequency resources, each N time-frequency resources constitute a transmission resource block, and M transmission resource blocks are obtained, and the TTI corresponding to the M transmission resource blocks is expressed as { t 1 ,. .., t N },{ t N +1 ,..., t 2 N },...,{ t ( M -1)* N +1 ,..., t M * N }. The M transmission resource blocks are resources selected by the sender terminal for sending data.
可選地,上述M*N個時頻資源可在時域上滿足一定的約束條件,例如,不同時頻資源在不同的TTI中,且任意兩個時頻資源之間的TTI間隔小於一個給定的值。 Optionally, the above M*N time-frequency resources may satisfy certain constraints in the time domain, for example, different time-frequency resources are in different TTIs, and the TTI interval between any two time-frequency resources is less than one Set value.
採用上述方案一進行資源選擇,可以實現靈活的資源選擇方式。 Using the above scheme one for resource selection can realize a flexible resource selection method.
資源選擇方案二 Resource selection scheme two
該方案中,可按照時頻資源圖樣選擇每個傳輸資源塊中的N個時頻資源,M個傳輸資源塊之間可以是獨立選擇的,也可以在選擇出一個傳輸資源塊後按照傳輸資源塊之間的約束條件選擇其他傳輸資源塊,例如,該約束條件可以是:任意兩個傳輸資源塊的時間視窗在時間上不交疊。 In this solution, N time-frequency resources in each transmission resource block can be selected according to the time-frequency resource pattern, M transmission resource blocks can be independently selected, or a transmission resource block can be selected according to the transmission resources. The constraint condition between the blocks selects other transmission resource blocks. For example, the constraint condition may be that the time windows of any two transmission resource blocks do not overlap in time.
由於一個候選傳輸資源塊中至少包括N個用於資料發送的時頻資源,因此相比于現有技術,使得選擇出的在直通鏈路上的傳輸資源具有更多靈活性,以滿足不同業務的需求。尤其當M等於2、N大於等於2的情況下,與現有技術相比,在根據選擇出的傳輸資源進行資料發送時,可以提高直通鏈路傳輸可靠性和/或擴大覆蓋範圍。 Since a candidate transmission resource block includes at least N time-frequency resources for data transmission, compared with the prior art, the selected transmission resource on the direct link has more flexibility to meet the needs of different services . Especially when M is equal to 2 and N is greater than or equal to 2, compared with the prior art, when transmitting data according to the selected transmission resource, the reliability of the through link transmission can be improved and/or the coverage can be expanded.
參見圖6,為本發明實施例提供的資源選擇流程示意圖,如圖所示,該流程可包括: S601:終端根據時頻資源圖樣,在資源選擇視窗內確定候選傳輸資源塊集合。其中,候選傳輸資源塊集合中包括至少一個候選傳輸資源塊,候選傳輸資源塊為用於在直通鏈路上的傳輸資源,一個候選傳輸資源塊中至少包括N個用於資料發送的時頻資源,該N個時頻資源根據該時頻資源圖樣確定,N為大於等於1的整數。 Referring to FIG. 6, it is a schematic diagram of a resource selection process provided by an embodiment of the present invention. As shown in the figure, the process may include: S601: The terminal determines a set of candidate transmission resource blocks in the resource selection window according to the time-frequency resource pattern. Among them, the set of candidate transmission resource blocks includes at least one candidate transmission resource block, the candidate transmission resource block is a transmission resource used on the through link, and one candidate transmission resource block includes at least N time-frequency resources used for data transmission, The N time-frequency resources are determined according to the time-frequency resource pattern, and N is an integer greater than or equal to 1.
其中,該資源選擇視窗的長度與業務的最大時延相關。 Among them, the length of the resource selection window is related to the maximum delay of the service.
可選地,候選傳輸資源塊集合中至少2個候選傳輸資源塊的時域不重疊。舉例來說,候選傳輸資源塊集合中包含有第一候選傳輸資源塊和第二候選傳輸資源塊,這兩個候選傳輸資源塊可如圖2所示,其中,第一候選傳輸資源塊和第二候選傳輸資源塊的時域長度分別為4個TTI,且第一候選傳輸資源塊和第二候選傳輸資源塊在時域上沒有交疊。 Optionally, the time domains of at least 2 candidate transmission resource blocks in the set of candidate transmission resource blocks do not overlap. For example, the set of candidate transmission resource blocks includes a first candidate transmission resource block and a second candidate transmission resource block. The two candidate transmission resource blocks may be as shown in FIG. 2, where the first candidate transmission resource block and the second candidate transmission resource block The two candidate transmission resource blocks have a time domain length of 4 TTIs respectively, and the first candidate transmission resource block and the second candidate transmission resource block do not overlap in the time domain.
以圖3-1所示的時頻資源圖樣為例,並且在頻域範圍為編號從0至19的子通道範圍內進行資源選擇,資源選擇視窗的時域上包括20個TTI,一個傳輸資源塊在頻域上佔用4個子通道,針對這種情況,在具體實施時,可以採用如下方式確定候選傳輸資源塊集合: Take the time-frequency resource pattern shown in Figure 3-1 as an example, and perform resource selection in the sub-channel range of frequency domain numbers from 0 to 19. The resource selection window includes 20 TTIs in the time domain and one transmission resource. The block occupies 4 sub-channels in the frequency domain. For this situation, in specific implementation, the set of candidate transmission resource blocks can be determined in the following manner:
可首先設置一個選擇窗,該窗的大小與一個傳輸資源塊的大小相同,本例子中,該選擇窗在時域上為4個TTI、在頻域上為4個子通道,並且採用圖3-1所示的時頻資源圖樣。 A selection window can be set first, and the size of the window is the same as the size of a transmission resource block. In this example, the selection window is 4 TTIs in the time domain and 4 sub-channels in the frequency domain. The time-frequency resource pattern shown in 1.
進行資源選擇時,在資源選擇視窗內的編號為0至3的TTI上,將選擇窗從編號為0的子通道開始,以1個子通道為步長向高頻率方向滑動,這樣得到17個候選傳輸資源塊,這17個候選傳輸資源塊均佔用編號為0至3的TTI,而頻域上佔有的子通道編號分別為:0-3,1-4,2-5,……,16-19。並且這17個候選傳輸資源塊中的4個時頻資源的位置均與圖3-1所示的時頻資源圖樣相一致。 When performing resource selection, on the TTIs numbered 0 to 3 in the resource selection window, slide the selection window from the subchannel numbered 0 and slide it in the direction of high frequency with 1 subchannel step, thus obtaining 17 candidates Transmission resource blocks, these 17 candidate transmission resource blocks all occupy TTIs numbered 0 to 3, and the subchannel numbers occupied in the frequency domain are: 0-3, 1-4, 2-5, ..., 16- 19. And the positions of the four time-frequency resources in the 17 candidate transmission resource blocks are all consistent with the time-frequency resource pattern shown in FIG. 3-1.
按照同樣的方式,在資源選擇視窗內的編號為1至4的TTI上,確定出17個候選傳輸資源塊。以此類推,分別在資源選擇視窗內的編號為2至5的TTI上,確定出17個候選傳輸資源塊,直到在資源選擇視窗 內的編號為16至19的TTI上,確定出17個候選傳輸資源塊。按照上述方式確定出的所有或部分候選傳輸資源塊可構成候選傳輸資源塊集合。 In the same way, on the TTIs numbered 1 to 4 in the resource selection window, 17 candidate transmission resource blocks are determined. By analogy, on the TTIs numbered 2 to 5 in the resource selection window, 17 candidate transmission resource blocks are identified until the resource selection window In the TTIs within the numbers 16 to 19, 17 candidate transmission resource blocks are identified. All or part of the candidate transmission resource blocks determined in the above manner may constitute a set of candidate transmission resource blocks.
上述例子是依據同一時頻資源圖樣確定一個候選傳輸資源塊包括的N個時頻資源為例描述的,在具體實施時,可以使用多個時頻資源圖樣確定不同的候選傳輸資源塊包括的N個時頻資源,比如以使用兩個時頻資源圖樣為例,可分別使用這兩個時頻資源圖樣,按照上述方法確定候選傳輸資源塊,將依據這兩個時頻資源圖樣確定的候選傳輸資源塊構成候選傳輸資源塊集合。基於通過該方法確定出的候選傳輸資源塊進行資源選擇時,可充分利用資源選擇視窗中的空閒資源。 The above example is described based on the determination of N time-frequency resources included in one candidate transmission resource block based on the same time-frequency resource pattern. In specific implementation, multiple time-frequency resource patterns may be used to determine N included in different candidate transmission resource blocks Time-frequency resources, for example, using two time-frequency resource patterns as an example, the two time-frequency resource patterns can be used separately to determine the candidate transmission resource block according to the above method, and the candidate transmission determined according to the two time-frequency resource patterns The resource blocks constitute a set of candidate transmission resource blocks. When resource selection is performed based on the candidate transmission resource blocks determined by this method, the idle resources in the resource selection window can be fully utilized.
上述時頻資源圖樣的配置方法可同前述實施例,比如可以是網路配置的,也可以是預配置的。 The configuration method of the above-mentioned time-frequency resource pattern may be the same as the foregoing embodiment, for example, it may be configured by a network or may be pre-configured.
採用上述方法確定出的候選傳輸資源塊集合,與採用現有技術確定出的候選傳輸資源相比,可以在時域上和/或頻域上獲得更大的範圍。 The set of candidate transmission resource blocks determined by the above method can obtain a larger range in the time domain and/or frequency domain than the candidate transmission resources determined by the prior art.
S602:終端從候選傳輸資源集合中選擇M個候選傳輸資源塊作為該終端在直通鏈路上的傳輸資源,M為大於等於1的整數。 S602: The terminal selects M candidate transmission resource blocks from the candidate transmission resource set as the transmission resources of the terminal on the through link, and M is an integer greater than or equal to 1.
具體實施時,終端可從候選傳輸資源塊集合中隨機選擇M個候選傳輸資源塊,作為該終端在直通鏈路上的傳輸資源;終端也可以根據候選傳輸資源塊集合中的候選傳輸資源塊上的接收信號強度,從候選傳輸資源塊集合中選擇M個候選傳輸資源塊,作為該終端在直通鏈路上的傳輸資源,以避免或減少干擾。比如按照接收信號強度從小到大排列,選擇排列在前的M個候選傳輸資源塊。其中,一個傳輸資源塊上的接收信號強 度,可以是該傳輸資源塊包括的N個時頻資源上的接收信號強度的平均值,也可以取N個時頻資源上的最大信號接收強度。 In specific implementation, the terminal may randomly select M candidate transmission resource blocks from the set of candidate transmission resource blocks as the transmission resources of the terminal on the direct link; the terminal may also select the candidate transmission resource blocks in the set of candidate transmission resource blocks Receive the signal strength and select M candidate transmission resource blocks from the set of candidate transmission resource blocks as the transmission resources of the terminal on the through link to avoid or reduce interference. For example, according to the received signal strength from small to large, select the top M candidate transmission resource blocks. Among them, the received signal on a transmission resource block is strong The degree may be the average value of the received signal strength on the N time-frequency resources included in the transmission resource block, or may be the maximum signal received strength on the N time-frequency resources.
可選地,選擇出的M個候選傳輸資源塊中的所有時頻資源(即M*N個時頻資源)在時域上不重疊,例如,時域上相鄰的兩個傳輸資源塊的時域跨度不會出現重疊。 Optionally, all time-frequency resources (that is, M*N time-frequency resources) in the selected M candidate transmission resource blocks do not overlap in the time domain, for example, the two adjacent transmission resource blocks in the time domain There will be no overlap in the time span.
進一步地,在S602中,如果配置或預先約定了傳輸資源塊之間的約束條件,則在選擇候選傳輸資源塊時,可根據該約束條件進行選擇,以使選擇出的傳輸資源塊符合該約束條件。比如,該約束條件規定不同傳輸資源塊之間的時間間隔不超過設定時長。比如,第一傳輸資源塊與第二傳輸資源塊之間的時間間隔不超過X個TTI,X為大於等於1的整數,X的取值可由系統約定或系統組態。 Further, in S602, if a constraint condition between transmission resource blocks is configured or pre-agreed, when selecting a candidate transmission resource block, a selection may be made according to the constraint condition, so that the selected transmission resource block conforms to the constraint condition. For example, the constraint condition stipulates that the time interval between different transmission resource blocks does not exceed the set duration. For example, the time interval between the first transmission resource block and the second transmission resource block does not exceed X TTIs, X is an integer greater than or equal to 1, and the value of X can be agreed or configured by the system.
進一步地,為了降低或避免與其他終端的資源衝突,在上述圖6所示流程的基礎上,還可以根據監聽到的其他終端發送的SA資訊,對候選傳輸資源塊集合中可能發生資源衝突的候選傳輸資源塊進行排除。 Further, in order to reduce or avoid resource conflicts with other terminals, on the basis of the process shown in FIG. 6 above, according to the monitored SA information sent by other terminals, resource conflicts in the set of candidate transmission resource blocks may occur. Candidate transmission resource blocks are excluded.
參見圖7,為本發明另外的實施例提供的資源選擇流程示意圖,如圖所示,該流程可包括如下步驟:S701:終端根據時頻資源圖樣,在資源選擇視窗內確定候選傳輸資源塊集合。其中,候選傳輸資源塊集合中包括至少一個候選傳輸資源塊,候選傳輸資源塊為用於在直通鏈路上的傳輸資源,一個候選傳輸資源塊中至少包括N個用於資料發送的時頻資源,該N個時頻資源根據該時頻資源圖樣確定,N為大於等於1的整數,該步驟的具體實現可參見圖6中的S601,在此不再重複;
S702:終端從候選傳輸資源塊集合中排除該終端與其他終端發生資源衝突的候選傳輸資源塊,
該步驟中,終端可在感知視窗內監聽到其他終端發送的SA資訊,根據監聽到的SA資訊確定干擾時頻資源,該干擾時頻資源為該SA資訊所關聯的時頻資源中的全部或部分。終端確定該干擾時頻資源以及該干擾時頻資源對應的預約時頻資源是否與候選傳輸資源塊集合中的候選傳輸資源塊存在部分或全部交疊,若是,則將候選傳輸資源塊集合中,與干擾時頻資源以及干擾時頻資源對應的預約時頻資源存在部分或全部交疊的候選傳輸資源塊,從候選傳輸資源塊集合中排除。其中,干擾時頻資源對應的預約時頻資源,可根據該干擾時頻資源的位置以及預約週期確定,比如預約週期的數量為R,則將預約週期1、預約週期2,……,預約週期R中,與該干擾時頻資源位置相應的時頻資源確定為該干擾時頻資源對應的預約時頻資源。其中,預約週期可以是網路配置的,或者是預配置的。
7 is a schematic diagram of a resource selection process provided by another embodiment of the present invention. As shown in the figure, the process may include the following steps: S701: The terminal determines a set of candidate transmission resource blocks in the resource selection window according to the time-frequency resource pattern . Among them, the set of candidate transmission resource blocks includes at least one candidate transmission resource block, the candidate transmission resource block is a transmission resource used on the through link, and one candidate transmission resource block includes at least N time-frequency resources used for data transmission, The N time-frequency resources are determined according to the time-frequency resource pattern, and N is an integer greater than or equal to 1. For a specific implementation of this step, refer to S601 in FIG. 6, which is not repeated here;
S702: The terminal excludes from the set of candidate transmission resource blocks candidate transmission resource blocks where the terminal has resource conflicts with other terminals,
In this step, the terminal can listen to SA information sent by other terminals in the perception window, and determine interference time-frequency resources based on the detected SA information. The interference time-frequency resources are all or all of the time-frequency resources associated with the SA information. section. The terminal determines whether the interference time-frequency resource and the reserved time-frequency resource corresponding to the interference time-frequency resource partially or completely overlap with the candidate transmission resource block in the candidate transmission resource block set, and if so, the candidate transmission resource block set, There are candidate transmission resource blocks that partially or completely overlap with the interference time-frequency resource and the reservation time-frequency resource, which are excluded from the set of candidate transmission resource blocks. Among them, the reservation time-frequency resource corresponding to the interference time-frequency resource can be determined according to the location of the interference time-frequency resource and the reservation cycle. For example, if the number of reservation cycles is R, then
進一步地,在根據監聽到的SA資訊確定干擾時頻資源時,可將該SA資訊所關聯的且資料通道參考信號接收功率大於接收功率門限的時頻資源確定為干擾時頻資源,在進行候選傳輸資源塊的排除過程中,若候選傳輸資源塊集合在排除後的候選傳輸資源塊數量除以排除前的候選傳輸資源塊數量所得到的比值低於設定閾值,則可將接收功率門限值提升,重新執行排除過程,直至該比值達到或高於設定閾值為止。該過程可如圖8所示: S801:根據在感知視窗內監聽到的其他終端發送的SA資訊,確定干擾時頻資源,該干擾時頻資源為該SA資訊所關聯的、資料通道參考信號接收 功率大於接收功率門限的時頻資源;S802:將候選傳輸資源塊集合中,與該干擾時頻資源以及該干擾時頻資源對應的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除;S803:判斷候選傳輸資源塊集合在排除後和排除前的候選傳輸資源塊數量的比值是否低於設定閾值,若是,則轉入S804,否則結束;S804:提高接收功率門限,並執行S801和S802,然後轉入S803。 Further, when determining the interference time-frequency resource based on the monitored SA information, the time-frequency resource associated with the SA information and the received power of the data channel reference signal greater than the received power threshold may be determined as the interference time-frequency resource, and candidates are being selected In the process of eliminating transmission resource blocks, if the ratio of the number of candidate transmission resource blocks after the candidate transmission resource block set is divided by the number of candidate transmission resource blocks before exclusion is lower than the set threshold, the received power threshold can be increased And execute the exclusion process again until the ratio reaches or exceeds the set threshold. The process can be shown in Figure 8: S801: Determine interference time-frequency resources based on SA information sent by other terminals monitored in the perception window. The interference time-frequency resources are related to the SA information and receive data channel reference signals. Time-frequency resources with a power greater than the received power threshold; S802: In the set of candidate transmission resource blocks, the reserved time-frequency resources corresponding to the interference time-frequency resources and the interference time-frequency resources have partially or completely overlapping candidate transmission resource blocks , Excluded from the set of candidate transmission resource blocks; S803: Determine whether the ratio of the number of candidate transmission resource blocks after and before the elimination of the set of candidate transmission resource blocks is lower than the set threshold, if yes, go to S804, otherwise end; S804 : Raise the receiving power threshold, and execute S801 and S802, then go to S803.
進一步地,若感知視窗在該資料發送方終端佔用的資料發送時頻資源(即在感知視窗內該終端發送了資料),則由於該終端採用半雙工方式通信,因此該終端無法在發送資料的資源上監聽到其他終端發送的資料,因此為了避免資源衝突,需要假定該發送資源上其他終端以系統組態的方式在所有可能的週期均預約了下一次傳輸資源,因此則將候選傳輸資源塊集合中,與該終端自己佔用的資料發送時頻資源對應的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從候選傳輸資源塊集合中排除。 Further, if the data transmission time-frequency resource occupied by the perception window in the data sender terminal (that is, the terminal sends data in the perception window), the terminal cannot communicate because the terminal uses half-duplex communication. The data sent by other terminals is monitored on the resource of the resource, so in order to avoid resource conflicts, it is necessary to assume that the other terminal on the sending resource has reserved the next transmission resource in all possible cycles in the manner of system configuration, so the candidate transmission resource In the block set, for the reserved time-frequency resource corresponding to the data transmission time-frequency resource occupied by the terminal itself, there are candidate transmission resource blocks that partially or all overlap, which is excluded from the candidate transmission resource block set.
S703:終端從排除後的候選傳輸資源塊集合中選擇M個候選傳輸資源塊作為該終端在直通鏈路上的傳輸資源,M為大於等於1的整數。 S703: The terminal selects M candidate transmission resource blocks from the set of excluded candidate transmission resource blocks as the transmission resources of the terminal on the through link, and M is an integer greater than or equal to 1.
該步驟的實現過程可參見圖6中的S602,所不同的是,本例子中,終端從排除後的候選傳輸資源塊集合中進行傳輸資源的選取。 The implementation process of this step can be referred to S602 in FIG. 6, the difference is that in this example, the terminal selects transmission resources from the set of excluded candidate transmission resource blocks.
為了更清楚地理解上述圖7所示的實施例的實現過程,下面結合圖9以及具體場景對上述流程進行詳細描述。 In order to understand the implementation process of the embodiment shown in FIG. 7 more clearly, the above process will be described in detail with reference to FIG. 9 and specific scenarios.
該場景中,M=1,N=4,一個傳輸資源塊中的4個時頻資源 的時頻資源圖樣採用圖3-1所示的方式,傳輸資源塊的頻域的大小為L個(L為大於等於1的整數)連續的子通道。終端的資源選擇過程如下所述:在S701中,將資源選擇窗內的所有候選傳輸資源塊標記為可用。候選傳輸資源塊可採用如下定義:一個候選傳輸資源塊表示為R x,y ,其中x表示候選傳輸資源塊中第一個時頻資源的頻域起始位置,y表示候選傳輸資源塊中第一個時頻資源的TTI起始位置。R x,y 表徵的候選傳輸資源塊在頻域上為x+j個子通道,其中j=0,...,L-1,在時域上為y+i個TTI,其中i=0,...,N-1。這裡R x,y 的定義是根據圖3-1所示的時頻資源圖樣定義的; In this scenario, M=1 and N=4. The time-frequency resource patterns of the four time-frequency resources in a transmission resource block adopt the method shown in FIG. 3-1, and the size of the frequency domain of the transmission resource block is L ( L is an integer greater than or equal to 1) consecutive sub-channels. The resource selection process of the terminal is as follows: In S701, all candidate transmission resource blocks in the resource selection window are marked as available. The candidate transmission resource block can be defined as follows: a candidate transmission resource block is represented as R x , y , where x represents the starting position of the frequency domain of the first time-frequency resource in the candidate transmission resource block, and y represents the first in the candidate transmission resource block The TTI starting position of a time-frequency resource. The candidate transmission resource blocks characterized by R x and y are x+j sub-channels in the frequency domain, where j =0,..., L -1, and y+i TTIs in the time domain, where i =0, ..., N -1. The definition of R x and y is based on the time-frequency resource pattern shown in Figure 3-1;
在S702中,對候選傳輸資源塊集合中的與其它終端發生資源衝突的候選傳輸資源塊進行排除,具體如下:進行資源選擇的終端根據感知視窗中監聽到的其他終端發送的SA資訊,測量該SA資訊關聯的PSSCH-RSRP(reference signal receiving power,參考信號接收功率),並將其中PSSCH-RSRP高於PSSCH-RSRP門限值的時頻資源確定為干擾時頻資源。 In S702, the candidate transmission resource blocks in the set of candidate transmission resource blocks that conflict with resources of other terminals are excluded, as follows: the terminal performing resource selection measures the SA information sent by other terminals monitored in the perception window to measure the The PSSCH-RSRP (reference signal receiving power) associated with SA information, and the time-frequency resources in which PSSCH-RSRP is higher than the PSSCH-RSRP threshold are determined as interference time-frequency resources.
進行資源選擇的終端從SA資訊中獲取資源預約週期,如果確定候選傳輸資源塊R x,y 與其它終端預約的下一次傳輸的時頻資源(即上述干擾時頻資源所對應的預約時頻資源)發生交疊或者部分交疊(圖9僅示出了部分交疊的情況),或者候選傳輸資源塊候選資源塊R x,y 預約的第r次的發送資源R x,y+r*P_tx 與其它終端預約的時頻資源發生交疊或者部分交疊,則將相應的候選傳輸資源塊從候選傳輸資源塊集合中排除。其中r=1,2,3,……,R(R表示疑問發送週期的數量最大值),P_tx進行資源選擇的終端的業務發送週期。 The terminal performing resource selection obtains the resource reservation period from the SA information, and if it is determined that the candidate transmission resource block R x , y and the time-frequency resource of the next transmission reserved by other terminals (that is, the reservation time-frequency resource corresponding to the above interference time-frequency resource ) Overlap or partial overlap occurs (Figure 9 only shows the case of partial overlap), or the candidate transmission resource block candidate resource block R x , y scheduled rth transmission resource R x , y + r * P_tx When there is overlap or partial overlap with time-frequency resources reserved by other terminals, the corresponding candidate transmission resource block is excluded from the set of candidate transmission resource blocks. Where r=1, 2, 3, ..., R (R represents the maximum number of question transmission periods), and the service transmission period of the terminal where P_tx performs resource selection.
可選地,在S702中,如果進行資源選擇的終端在感知視窗 中,自身也進行了資料發送,則由於半雙工的影響,其中無法在發送子訊框上監聽到其他終端發送的業務包,這類子訊框稱為跳(skip)子訊框。此種情況下,需要假定該子訊框上其他終端以系統組態的方式在所有可能的週期均預約了下一次資源,其中該所有可能的週期的集合是由網路配置或者預配置的。如果終端確定候選傳輸資源塊R x,y 與skip子訊框預約的下一次傳輸的時頻資源發生交疊或者部分交疊,或者候選傳輸資源塊R x,y 預約的第r次發送的資源R x,y+r*P_tx 與skip子訊框預約的下一次傳輸的時頻資源發生交疊或者部分交疊,則將相應的候選傳輸資源塊從候選傳輸資源塊集合中排除。其中r=1,2,3,……,R,P_tx為進行資源選擇的終端的業務發送週期。 Optionally, in S702, if the terminal performing resource selection is in the perception window and also transmits data itself, due to the effect of half-duplex, it is impossible to listen to the service packets sent by other terminals on the sending sub-frame This type of sub-frame is called a skip sub-frame. In this case, it is necessary to assume that the other terminals on the sub-frame reserve the next resource in all possible cycles in a system configuration manner, where the set of all possible cycles is configured or pre-configured by the network. If the terminal determines that the candidate transmission resource block R x , y overlaps or partially overlaps with the time-frequency resource of the next transmission reserved by the skip subframe, or the r transmission resource reserved by the candidate transmission resource block R x , y R x , y + r * P_tx overlaps or partially overlaps with the time-frequency resource of the next transmission reserved by the skip subframe, and the corresponding candidate transmission resource block is excluded from the set of candidate transmission resource blocks. Where r=1, 2, 3, ..., R, P_tx is the service transmission period of the terminal for resource selection.
可選地,在S702中,如果執行完候選傳輸資源塊排除過程後,候選傳輸資源塊集合中剩餘的候選傳輸資源塊的數量與排除前的數量的比例低於設定閾值,則將PSSCH-RSRP門限值提升,重新執行排除過程,直至剩餘資源比例達到或高於該閾值止。 Optionally, in S702, if after the execution of the candidate transmission resource block elimination process, the ratio of the number of candidate transmission resource blocks remaining in the candidate transmission resource block set to the number before elimination is lower than the set threshold, then the PSSCH-RSRP The threshold is increased, and the elimination process is re-executed until the remaining resource ratio reaches or exceeds the threshold.
在S703中,進行資源選擇的終端從候選傳輸資源塊集合中選擇候選傳輸資源塊對應的資源。 In S703, the terminal performing resource selection selects a resource corresponding to the candidate transmission resource block from the set of candidate transmission resource blocks.
可選地,S703中,終端可以對候選資源進行S-RSSI(其中,S為sidelink的縮寫,中文為直通鏈路,RSSI為receive signal strength indicator的縮寫,中文為接收信號強度指示)測量和排序,選擇出S-RSSI測量值最低的候選傳輸資源塊或滿足該條件的候選傳輸資源塊的子集,如果選擇出的是子集,則可以通過隨機的方式從該子集中選擇候選傳輸資源塊。 Optionally, in S703, the terminal may perform S-RSSI (where S is an abbreviation of sidelink, Chinese is a direct link, RSSI is an abbreviation of receive signal strength indicator, and Chinese is a received signal strength indicator) measurement and sequencing. , Select the candidate transmission resource block with the lowest S-RSSI measurement value or a subset of the candidate transmission resource blocks that satisfy the condition. If the selected subset is a subset, the candidate transmission resource block can be selected from the subset in a random manner .
基於相同的技術構思,本發明實施例還提供了一種資源選擇 裝置。該裝置可以是終端也可以是終端中的裝置。 Based on the same technical concept, an embodiment of the present invention also provides a resource selection Device. The device may be a terminal or a device in the terminal.
參見圖10,為本發明實施例提供的資源選擇裝置的結構示意圖,該裝置可包括:確定模組1002、選擇模組1002,其中:
確定模組1001用於根據時頻資源圖樣,在資源選擇視窗內確定候選傳輸資源塊集合,該候選傳輸資源塊集合中包括至少一個候選傳輸資源塊,該候選傳輸資源塊為用於在直通鏈路上的傳輸資源,一個候選傳輸資源塊中至少包括N個用於資料發送的時頻資源,該N個時頻資源根據該時頻資源圖樣確定,N為大於等於1的整數;選擇模組1002用於從該候選傳輸資源集合中選擇M個候選傳輸資源塊作為該終端在直通鏈路上的傳輸資源,M為大於等於1的整數。
10 is a schematic structural diagram of a resource selection device provided by an embodiment of the present invention. The device may include: a
可選地,該候選傳輸資源塊集合中至少2個候選傳輸資源塊的時域不重疊。 Optionally, the time domains of at least 2 candidate transmission resource blocks in the set of candidate transmission resource blocks do not overlap.
可選地,選擇模組1002具體用於:從該候選傳輸資源塊集合中排除該終端與其他終端發生資源衝突的候選傳輸資源塊;從排除後的候選傳輸資源塊集合中選擇M個候選傳輸資源塊。
Optionally, the
可選地,選擇模組1002具體用於:根據在感知視窗內監聽到的其他終端發送的SA資訊,確定干擾時頻資源,該干擾時頻資源為該SA資訊所關聯的時頻資源中的全部或部分;將該候選傳輸資源塊集合中,與該干擾時頻資源以及該干擾時頻資源對應的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除;其中,該預約時頻資源根據該干擾時頻資源的位置以及預約週期確定。
Optionally, the
可選地,該干擾時頻資源為該SA資訊所關聯的時頻資源中,
資料通道參考信號接收功率大於接收功率門限的時頻資源;選擇模組1002還用於:判斷該候選傳輸資源塊集合在排除後和排除前的時頻資源數量的比值是否低於設定閾值,若是,則提高該接收功率門限,並再次執行該確定干擾時頻資源的步驟以及該排除步驟。
Optionally, the interference time-frequency resource is the time-frequency resource associated with the SA information,
The data channel reference signal received power is greater than the time-frequency resource of the received power threshold; the
可選地,選擇模組1002還用於:若該感知視窗在該終端佔用的資料發送時頻資源,則將該候選傳輸資源塊集合中,與該資料發送時頻資源對應的所有可能的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除。
Optionally, the
可選地,選擇模組1002具體用於:根據排除後的候選傳輸資源塊集合中的候選傳輸資源塊上的接收信號強度,按照接收信號強度從小到大的順序,選擇M個候選傳輸資源塊。
Optionally, the
可選地,選擇模組1002具體用於:從該候選傳輸資源塊集合中隨機選擇M個候選傳輸資源塊;或者,根據該候選傳輸資源塊集合中的候選傳輸資源塊上的接收信號強度,從該候選傳輸資源塊集合中選擇M個候選傳輸資源塊。
Optionally, the
基於相同的技術構思,本發明實施例還提供了一種通信裝置。參見圖11,為本發明實施例提供的通信裝置的結構示意圖。該通信裝置可以是終端。如圖所示,該通信裝置可包括:處理器1101、記憶體1102、收發機1103以及匯流排介面。
Based on the same technical concept, an embodiment of the present invention also provides a communication device. Referring to FIG. 11, it is a schematic structural diagram of a communication device according to an embodiment of the present invention. The communication device may be a terminal. As shown in the figure, the communication device may include a
處理器1101負責管理匯流排架構和通常的處理,記憶體1102可以存儲處理器1101在執行操作時所使用的資料。收發機1103用於在處理器1101的控制下接收和發送資料。
The
匯流排架構可以包括任意數量的互聯的匯流排和橋,具體由處理器1101代表的一個或多個處理器和記憶體1102代表的記憶體的各種電路連結在一起。匯流排架構還可以將諸如週邊設備、穩壓器和功率管理電路等之類的各種其他電路連結在一起,這些都是本領域所公知的,因此,本文不再對其進行進一步描述。匯流排介面提供介面。處理器1101負責管理匯流排架構和通常的處理,記憶體1102可以存儲處理器1101在執行操作時所使用的資料。
The bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the
本發明實施例揭示的流程,可以應用於處理器1101中,或者由處理器1101實現。在實現過程中,信號處理流程的各步驟可以通過處理器1101中的硬體的集成邏輯電路或者軟體形式的指令完成。處理器1101可以是通用處理器、數位訊號處理器、專用積體電路、現場可程式設計閘陣列或者其他可程式設計邏輯器件、分立門或者電晶體邏輯器件、分立硬體元件,可以實現或者執行本發明實施例中的公開的各方法、步驟及邏輯框圖。通用處理器可以是微處理器或者任何常規的處理器等。結合本發明實施例所公開的方法的步驟可以直接體現為硬體處理器執行完成,或者用處理器中的硬體及軟體模組組合執行完成。軟體模組可以位於隨機記憶體,快閃記憶體、唯讀記憶體,可程式設計唯讀記憶體或者電可讀寫可程式設計記憶體、寄存器等本領域成熟的存儲介質中。該存儲介質位於記憶體1102,處理器1101讀取記憶體1102中的資訊,結合其硬體完成信號處理流程的步驟。
The process disclosed in the embodiment of the present invention may be applied to the
具體地,處理器1101,用於讀取記憶體1102中的程式,執行下列過程:根據時頻資源圖樣,在資源選擇視窗內確定候選傳輸資源塊
集合,該候選傳輸資源塊集合中包括至少一個候選傳輸資源塊,該候選傳輸資源塊為用於在直通鏈路上的傳輸資源,一個候選傳輸資源塊中至少包括N個用於資料發送的時頻資源,該N個時頻資源根據該時頻資源圖樣確定,N為大於等於1的整數;從該候選傳輸資源集合中選擇M個候選傳輸資源塊作為該終端在直通鏈路上的傳輸資源,M為大於等於1的整數。上述流程的具體實現過程可參見前述實施例的描述,在此不再重複。
Specifically, the
可選地,該候選傳輸資源塊集合中至少2個候選傳輸資源塊的時域不重疊。 Optionally, the time domains of at least 2 candidate transmission resource blocks in the set of candidate transmission resource blocks do not overlap.
可選地,處理器1101具體用於:從該候選傳輸資源塊集合中排除該終端與其他終端發生資源衝突的候選傳輸資源塊;從排除後的候選傳輸資源塊集合中選擇M個候選傳輸資源塊。
Optionally, the
可選地,處理器1101具體用於:根據在感知視窗內監聽到的其他終端發送的SA資訊,確定干擾時頻資源,該干擾時頻資源為該SA資訊所關聯的時頻資源中的全部或部分;將該候選傳輸資源塊集合中,與該干擾時頻資源以及該干擾時頻資源對應的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除;其中,該預約時頻資源根據該干擾時頻資源的位置以及預約週期確定。
Optionally, the
可選地,該干擾時頻資源為該SA資訊所關聯的時頻資源中,資料通道參考信號接收功率大於接收功率門限的時頻資源;處理器1101還用於:判斷該候選傳輸資源塊集合在排除後和排除前的時頻資源數量的比值是否低於設定閾值,若是,則提高該接收功率門限,並再次執行該確定干擾時頻資源的步驟以及該排除步驟。
Optionally, the interference time-frequency resource is a time-frequency resource associated with the SA information, and the data channel reference signal received power is greater than the received power threshold time-frequency resource; the
可選地,處理器1101還用於:若該感知視窗在該終端佔用的資料發送時頻資源,則將該候選傳輸資源塊集合中,與該資料發送時頻資源對應的所有可能的預約時頻資源,存在部分或全部交疊的候選傳輸資源塊,從該候選傳輸資源塊集合中排除。
Optionally, the
可選地,處理器1101具體用於:根據排除後的候選傳輸資源塊集合中的候選傳輸資源塊上的接收信號強度,按照接收信號強度從小到大的順序,選擇M個候選傳輸資源塊。
Optionally, the
可選地,處理器1101具體用於:從該候選傳輸資源塊集合中隨機選擇M個候選傳輸資源塊;或者,根據該候選傳輸資源塊集合中的候選傳輸資源塊上的接收信號強度,從該候選傳輸資源塊集合中選擇M個候選傳輸資源塊。
Optionally, the
基於相同的技術構思,本發明實施例還提供了一種電腦存儲介質。該電腦可讀存儲介質存儲有電腦可執行指令,該電腦可執行指令用於使該電腦執行前述實施例所描述的資源選擇流程。 Based on the same technical concept, an embodiment of the present invention also provides a computer storage medium. The computer-readable storage medium stores computer-executable instructions, which are used to cause the computer to execute the resource selection process described in the foregoing embodiment.
本發明是參照根據本發明實施例的方法、設備(系統)、和電腦程式產品的流程圖和/或方框圖來描述的。應理解可由電腦程式指令實現流程圖和/或方框圖中的每一流程和/或方框、以及流程圖和/或方框圖中的流程和/或方框的結合。可提供這些電腦程式指令到通用電腦、專用電腦、嵌入式處理機或其他可程式設計資料處理設備的處理器以產生一個機器,使得通過電腦或其他可程式設計資料處理設備的處理器執行的指令產生用於實現在流程圖一個流程或多個流程和/或方框圖一個方框或多個方框中指定的功能的裝置。 The present invention is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and/or block in the flowchart and/or block diagram and a combination of the flow and/or block in the flowchart and/or block diagram may be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine that allows instructions executed by the processor of the computer or other programmable data processing device Means for generating the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and/or block diagrams.
這些電腦程式指令也可存儲在能引導電腦或其他可程式設計資料處理設備以特定方式工作的電腦可讀記憶體中,使得存儲在該電腦可讀記憶體中的指令產生包括指令裝置的製造品,該指令裝置實現在流程圖一個流程或多個流程和/或方框圖一個方框或多個方框中指定的功能。 These computer program instructions can also be stored in a computer readable memory that can guide the computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer readable memory produce a manufactured product including an instruction device The instruction device implements the functions specified in one block or multiple blocks in one flow or multiple flows in the flowchart and/or one block in the block diagram.
這些電腦程式指令也可裝載到電腦或其他可程式設計資料處理設備上,使得在電腦或其他可程式設計設備上執行一系列操作步驟以產生電腦實現的處理,從而在電腦或其他可程式設計設備上執行的指令提供用於實現在流程圖一個流程或多個流程和/或方框圖一個方框或多個方框中指定的功能的步驟。 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operating steps can be performed on the computer or other programmable device to generate computer-implemented processing, and thus on the computer or other programmable device The instructions executed above provide steps for implementing the functions specified in one flow or flow of the flowchart and/or one block or flow of the block diagram.
儘管已描述了本發明的優選實施例,但本領域內的技術人員一旦得知了基本進步性概念,則可對這些實施例作出另外的變更和修改。所以,所附申請專利範圍意欲解釋為包括優選實施例以及落入本發明範圍的所有變更和修改。 Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic progressive concept. Therefore, the scope of the attached patent application is intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.
顯然,本領域的技術人員可以對本發明進行各種改動和變型而不脫離本發明的精神和範圍。這樣,倘若本發明的這些修改和變型屬於本發明申請專利範圍及其等同技術的範圍之內,則本發明也意圖包含這些改動和變型在內。 Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and variations of the present invention fall within the scope of the patent application of the present invention and the scope of its equivalent technology, the present invention is also intended to include these modifications and variations.
S701~S703:步驟 S701~S703: Steps
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Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3886348B1 (en) * | 2019-01-11 | 2024-07-31 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Sidelink communication method, terminal device and network device |
CN111526540A (en) * | 2019-02-01 | 2020-08-11 | 北京三星通信技术研究有限公司 | Resource allocation method and equipment for bypass communication system |
CN112997535A (en) * | 2019-02-14 | 2021-06-18 | Oppo广东移动通信有限公司 | Resource allocation method, terminal equipment and network equipment |
CN111614415A (en) * | 2019-04-02 | 2020-09-01 | 维沃移动通信有限公司 | Channel resource determination method, channel detection method and terminal |
CN111836371B (en) * | 2019-04-18 | 2023-11-03 | 中信科智联科技有限公司 | Resource selection method, device and terminal |
CN111865505B (en) * | 2019-04-30 | 2023-01-13 | ***通信有限公司研究院 | Resource selection method and equipment |
US11310776B2 (en) * | 2019-05-13 | 2022-04-19 | Huawei Technologies Co., Ltd. | Sensing and resource selection for sidelink grant-free transmissions |
CN112020144B (en) | 2019-05-30 | 2022-09-02 | 华为技术有限公司 | Method and equipment for determining resources of asynchronous physical uplink shared channel |
WO2021016805A1 (en) * | 2019-07-29 | 2021-02-04 | 富士通株式会社 | Resource selection method and apparatus |
CN112737646B (en) * | 2019-08-16 | 2022-02-25 | 华为技术有限公司 | Communication method and device |
CN114586388A (en) * | 2019-08-29 | 2022-06-03 | Lg电子株式会社 | Method and apparatus for selecting resources related to sidelink in NR V2X |
CN110741581B (en) * | 2019-09-05 | 2022-04-08 | 香港应用科技研究院有限公司 | Method for processing received channel signal in device-to-device communication link |
CN112583552B (en) * | 2019-09-29 | 2022-05-10 | 大唐移动通信设备有限公司 | Sidelink channel multiplexing method and terminal |
WO2021062605A1 (en) * | 2019-09-30 | 2021-04-08 | Oppo广东移动通信有限公司 | Method for determining resource selection window, terminal apparatus, and storage medium |
CN113056022B (en) * | 2019-12-27 | 2022-07-05 | 大唐高鸿智联科技(重庆)有限公司 | Resource selection method and network node |
CN114747270A (en) * | 2019-12-31 | 2022-07-12 | 华为技术有限公司 | Method, device and system for transmitting sideline data |
CN111182639B (en) * | 2020-01-03 | 2023-04-28 | 展讯半导体(南京)有限公司 | Transmission resource determining method and related equipment |
CN113114437B (en) * | 2020-01-13 | 2022-03-29 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
CN111246426B (en) * | 2020-01-16 | 2023-07-04 | 北京紫光展锐通信技术有限公司 | Resource selection method for auxiliary link communication and communication device |
CN113518321B (en) * | 2020-04-09 | 2022-10-25 | 北京紫光展锐通信技术有限公司 | Resource selection method and device for auxiliary link, storage medium and terminal |
CN113518323B (en) * | 2020-04-10 | 2024-01-05 | 中信科智联科技有限公司 | Resource selection method and terminal |
CN113518325B (en) * | 2020-04-10 | 2024-01-05 | 中信科智联科技有限公司 | Resource selection method and terminal |
CN114071405A (en) * | 2020-08-06 | 2022-02-18 | 华为技术有限公司 | Resource sensing method and communication device |
CN112153602B (en) * | 2020-09-24 | 2024-05-14 | 中信科智联科技有限公司 | Resource selection method and terminal |
CN112291836B (en) * | 2020-10-22 | 2023-03-24 | 中信科智联科技有限公司 | Resource selection method, device and terminal |
CN115696272A (en) * | 2021-07-29 | 2023-02-03 | 华为技术有限公司 | Information sending method, receiving method and communication device |
CN115701157A (en) * | 2021-07-30 | 2023-02-07 | 展讯通信(上海)有限公司 | Resource selection method and communication device |
CN113691957B (en) * | 2021-08-18 | 2023-09-08 | 西安电子科技大学 | Internet of vehicles resource selection method based on optimized resource preemption |
CN115734346A (en) * | 2021-08-27 | 2023-03-03 | 展讯通信(上海)有限公司 | Data transmission method and device, readable storage medium and terminal |
CN116095648A (en) * | 2021-11-05 | 2023-05-09 | 华为技术有限公司 | Method and device for determining candidate resource set |
WO2023130939A1 (en) * | 2022-01-04 | 2023-07-13 | 华为技术有限公司 | Resource selection method and apparatus |
CN116489717A (en) * | 2022-01-13 | 2023-07-25 | 展讯通信(上海)有限公司 | Resource selection method, device and equipment |
CN114501396B (en) * | 2022-03-28 | 2022-10-14 | 深圳市科思科技股份有限公司 | Data transmission method, device and equipment |
CN117042144A (en) * | 2022-04-28 | 2023-11-10 | 中信科智联科技有限公司 | Resource selection method, information sending method, device and terminal |
CN115004851A (en) * | 2022-04-29 | 2022-09-02 | 北京小米移动软件有限公司 | Method, device and storage medium for determining resources |
WO2024031539A1 (en) * | 2022-08-11 | 2024-02-15 | Zte Corporation | Method and system for selecting side link resources in wireless network |
CN117692945A (en) * | 2022-08-29 | 2024-03-12 | 维沃移动通信有限公司 | Perceptual signal processing method and device and communication equipment |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103841649A (en) * | 2014-03-19 | 2014-06-04 | 宇龙计算机通信科技(深圳)有限公司 | Terminal D2D communication method and terminal D2D communication system |
CN105101431A (en) * | 2014-05-07 | 2015-11-25 | 中兴通讯股份有限公司 | Device-to-Device communication method, apparatus and system |
CN105580464A (en) * | 2013-10-31 | 2016-05-11 | 英特尔Ip公司 | Resource selection in device to device communication |
WO2017007184A1 (en) * | 2015-07-03 | 2017-01-12 | 엘지전자 주식회사 | Method for transmitting signal between terminals, and apparatus for same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10531431B2 (en) * | 2013-07-02 | 2020-01-07 | Samsung Electronics Co., Ltd. | Apparatus and method for allocating resources in device-to-device communication in wireless network |
CN104202740B (en) * | 2014-05-08 | 2019-07-19 | 中兴通讯股份有限公司 | Communication data sending method, device and user equipment |
CN105634755B (en) * | 2014-11-07 | 2019-03-05 | 普天信息技术有限公司 | A kind of directintermination running time-frequency resource application method and device |
CN106488411B (en) * | 2015-08-28 | 2019-08-16 | 普天信息技术有限公司 | The monitoring method of network-off direct-passing terminal resource conflict |
-
2017
- 2017-07-06 CN CN201710548218.4A patent/CN109219015B/en active Active
-
2018
- 2018-06-05 WO PCT/CN2018/090010 patent/WO2019007183A1/en active Application Filing
- 2018-07-06 TW TW107123424A patent/TWI687107B/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105580464A (en) * | 2013-10-31 | 2016-05-11 | 英特尔Ip公司 | Resource selection in device to device communication |
CN103841649A (en) * | 2014-03-19 | 2014-06-04 | 宇龙计算机通信科技(深圳)有限公司 | Terminal D2D communication method and terminal D2D communication system |
CN105101431A (en) * | 2014-05-07 | 2015-11-25 | 中兴通讯股份有限公司 | Device-to-Device communication method, apparatus and system |
WO2017007184A1 (en) * | 2015-07-03 | 2017-01-12 | 엘지전자 주식회사 | Method for transmitting signal between terminals, and apparatus for same |
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CN109219015A (en) | 2019-01-15 |
TW201907739A (en) | 2019-02-16 |
WO2019007183A1 (en) | 2019-01-10 |
CN109219015B (en) | 2021-01-22 |
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