TWI666891B - User equipment and operation method thereof, network device and operation method thereof - Google Patents
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Abstract
一種用戶設備包括:一天線陣列,用以接收複數個波束所傳來的複數個無線信號,以及一處理單元,用以測量該些無線信號的複數個無線信號品質,找出該些無線信號品質之一目標無線信號品質,選擇發出該目標無線信號品質的一波束為一候選服務波束。該處理單元控制該天線陣列回傳對應到該目標無線信號品質的一傳輸時間索引與一波束掃描序列識別碼給該些波束中之一目前服務波束。 A user equipment includes: an antenna array for receiving a plurality of wireless signals transmitted by a plurality of beams, and a processing unit for measuring a plurality of wireless signal qualities of the wireless signals to find out the quality of the wireless signals One of the target wireless signal qualities, and a beam that emits the target wireless signal quality is selected as a candidate service beam. The processing unit controls the antenna array to return a transmission time index and a beam scanning sequence identification code corresponding to the target wireless signal quality to one of the current serving beams of the beams.
Description
本發明是有關於一種用戶設備及其操作方法,網路裝置及其操作方法。 The invention relates to a user equipment and an operation method thereof, a network device and an operation method thereof.
利用無線通訊的智慧型手機已成為人們生活的必需品。以無線通訊或行動通訊而言,使用者可能會碰到阻擋性(blockage)及行動終端移動力(mobility)的問題。 Smart phones using wireless communications have become a necessity of people's lives. In terms of wireless communication or mobile communication, users may encounter problems with blockage and mobility of mobile terminals.
阻擋性(blockage)是指,由基地台所發出的無線信號可能會被位於用戶設備(user equipment)或行動終端附近的建築物所阻擋,導致用戶設備或行動終端接收不到無線信號或者無線信號品質不良。 Blockage refers to the fact that the wireless signal sent by the base station may be blocked by buildings located near user equipment or mobile terminals, causing the user equipment or mobile terminals to not receive wireless signals or the quality of wireless signals bad.
而行動終端移動力則是指,由於使用者可能帶著用戶設備或行動終端移動。當用戶設備或行動終端移動到服務基地台的邊界(edge)時,需要進行換手(handover),而換手可能導致信號喪失或者是傳輸延遲的問題。 The mobile terminal mobile force means that the user may move with the user equipment or the mobile terminal. When the user equipment or mobile terminal moves to the edge of the serving base station, a handover is required, and the handover may cause a signal loss or a transmission delay problem.
另外,當用戶設備或行動終端在移動時,可能出現「扇形區塊內波束選擇」及/或「扇形區塊間波束選擇」。如何避免「扇形 區塊內波束選擇」及/或「扇形區塊間波束選擇」所造成的傳輸延遲,亦是業界努力方向之一。 In addition, when the user equipment or mobile terminal is moving, "intra-sector beam selection" and / or "inter-sector beam selection" may occur. How to avoid "fan-shaped Transmission delay caused by "intra-block beam selection" and / or "fan-shaped inter-block beam selection" is also one of the efforts of the industry.
本發明係有關於一種用戶設備,無線耦接至複數個扇形區塊,該用戶設備包括:一天線陣列,用以接收複數個波束所傳來的複數個無線信號,以及一處理單元,耦接至該天線陣列,用以測量該些無線信號的複數個無線信號品質,找出該些無線信號品質之一目標無線信號品質,選擇該些扇形區塊中之發出該目標無線信號品質的一波束為一候選服務波束。該處理單元控制該天線陣列回傳對應到該目標無線信號品質的一傳輸時間索引與一波束掃描序列識別碼給該些波束中之一目前服務波束。 The present invention relates to a user equipment wirelessly coupled to a plurality of sector blocks. The user equipment includes: an antenna array for receiving a plurality of wireless signals transmitted by a plurality of beams, and a processing unit coupled to To the antenna array to measure the plurality of wireless signal qualities of the wireless signals, find a target wireless signal quality that is one of the wireless signal qualities, and select a beam in the sector blocks that emits the target wireless signal quality Servicing a candidate beam. The processing unit controls the antenna array to return a transmission time index and a beam scanning sequence identification code corresponding to the target wireless signal quality to one of the current serving beams of the beams.
根據本案一例,提出一種網路裝置,用於一無線通訊系統,該無線通訊系統包括複數個扇形區塊,該網路裝置無線耦接到一用戶設備,該些扇形區塊發出複數個波束至該用戶設備,該網路裝置包括:一處理單元與一通訊模組,耦接至該處理單元與該些扇形區塊之至少一扇形區塊。根據從該些波束中之一服務波束所接收到的由該用戶設備所回傳的一傳輸時間索引與一波束掃描序列識別碼,該處理單元決定是否該用戶設備所回傳的該傳輸時間索引與該波束掃描序列識別碼匹配於該服務波束;以及當該處理單元決定該用戶設備所回傳的該傳輸時間索引與該波束掃描序列識別碼不匹配於該服務波束,該處理單元根據該用戶設備所回傳的該傳輸時間索引與該波束掃描序列 識別碼決定是否要進行扇形區塊內波束選擇,或者進行扇形區塊間波束選擇。 According to an example of the present case, a network device is proposed for a wireless communication system. The wireless communication system includes a plurality of sector blocks, the network device is wirelessly coupled to a user equipment, and the sector blocks emit a plurality of beams to The user equipment and the network device include a processing unit and a communication module, which are coupled to the processing unit and at least one sector of the sectors. The processing unit determines whether the transmission time index returned by the user equipment is based on a transmission time index and a beam scanning sequence identification code returned by the user equipment received from one of the serving beams. And the beam scanning sequence identification code matches the service beam; and when the processing unit determines that the transmission time index returned by the user equipment and the beam scanning sequence identification code do not match the service beam, the processing unit according to the user The transmission time index and the beam scan sequence returned by the device The identification code determines whether to perform intra-sector beam selection or inter-sector beam selection.
根據本案另一例,提出一種用戶設備之操作方法,該用戶設備無線耦接至複數個扇形區塊,該用戶設備包括一天線陣列與一處理單元,該操作方法包括:該天線陣列接收複數個波束所傳來的複數個無線信號;該處理單元測量該些無線信號的複數個無線信號品質;該處理單元找出該些無線信號品質之一目標無線信號品質;該處理單元選擇該些扇形區塊中之發出該目標無線信號品質的一波束為一候選服務波束;以及該處理單元控制該天線陣列回傳對應到該目標無線信號品質的一傳輸時間索引與一波束掃描序列識別碼給該些波束中之一目前服務波束。 According to another example of the present case, an operation method of user equipment is proposed. The user equipment is wirelessly coupled to a plurality of sector blocks. The user equipment includes an antenna array and a processing unit. The operation method includes: the antenna array receives a plurality of beams. The plurality of wireless signals transmitted; the processing unit measures the plurality of wireless signal qualities of the wireless signals; the processing unit finds a target wireless signal quality that is one of the wireless signal qualities; the processing unit selects the sector blocks A beam that emits the target wireless signal quality is a candidate service beam; and the processing unit controls the antenna array to return a transmission time index and a beam scanning sequence identification code corresponding to the target wireless signal quality to the beams. One of them currently serves a beam.
根據本案更一例,提出一種網路裝置之操作方法,用於一無線通訊系統,該無線通訊系統包括複數個扇形區塊,該網路裝置無線耦接到一用戶設備,該些扇形區塊發出複數個波束至該用戶設備,該網路裝置之操作方法包括:根據從該些波束中之一服務波束所接收到的由該用戶設備所回傳的一傳輸時間索引與一波束掃描序列識別碼,該處理單元決定是否該用戶設備所回傳的該傳輸時間索引與該波束掃描序列識別碼匹配於該服務波束;以及當該處理單元決定該用戶設備所回傳的該傳輸時間索引與該波束掃描序列識別碼不匹配於該服務波束,該處理單元根據該用戶設備所回傳的該傳輸時間索引與該波束掃描序列識別碼決定是否要進行扇形區塊內波束選擇,或者進行扇形區塊間波束選擇。 According to a further example of the present case, an operation method of a network device is proposed for a wireless communication system. The wireless communication system includes a plurality of sector blocks. The network device is wirelessly coupled to a user equipment, and the sector blocks are issued. A plurality of beams to the user equipment, the operation method of the network device includes: according to a transmission time index and a beam scanning sequence identification code returned by the user equipment received from a service beam of the beams , The processing unit determines whether the transmission time index returned by the user equipment and the beam scanning sequence identifier match the service beam; and when the processing unit determines the transmission time index returned by the user equipment and the beam The scanning sequence identification code does not match the service beam, and the processing unit determines whether to perform beam selection within the sector block or perform inter-sector block based on the transmission time index returned by the user equipment and the beam scanning sequence identification code. Beam selection.
為了對本發明之上述及其他方面有更佳的瞭解,下文特舉實施例,並配合所附圖式詳細說明如下: In order to have a better understanding of the above and other aspects of the present invention, the following specific examples are described in detail below in conjunction with the accompanying drawings:
100‧‧‧無線通訊系統 100‧‧‧Wireless communication system
110‧‧‧控制裝置 110‧‧‧control device
RFN1與RFN2‧‧‧網路裝置 RFN1 and RFN2‧‧‧ network devices
B0-B7‧‧‧波束 B0-B7‧‧‧ Beam
200‧‧‧無線通訊系統 200‧‧‧Wireless communication system
210‧‧‧控制裝置 210‧‧‧Control device
RFN0-RFN2‧‧‧網路裝置 RFN0-RFN2‧‧‧Network Device
S0-0至2-2‧‧‧扇形區塊 S0-0 to 2-2‧‧‧Sector blocks
UE0、UE1‧‧‧用戶設備 UE0, UE1‧‧‧ User Equipment
310-340‧‧‧步驟 310-340‧‧‧step
S1110-S1150‧‧‧步驟 S1110-S1150‧‧‧step
1200‧‧‧用戶設備 1200‧‧‧User Equipment
1210‧‧‧處理單元 1210‧‧‧Processing Unit
1220‧‧‧記憶體 1220‧‧‧Memory
1230‧‧‧天線陣列 1230‧‧‧ Antenna Array
1300‧‧‧網路裝置 1300‧‧‧ network device
1310‧‧‧處理單元 1310‧‧‧Processing Unit
1320‧‧‧記憶體 1320‧‧‧Memory
1330‧‧‧通訊模組 1330‧‧‧Communication Module
1410-1450、1510-1520‧‧‧步驟 1410-1450, 1510-1520 ‧‧‧ steps
第1圖顯示根據本案一實施例的無線通訊系統的示意圖。 FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present invention.
第2A圖顯示在無線通訊系統中,單一用戶設備存在時的示意圖。第2B圖顯示在無線通訊系統中,多用戶設備存在時的示意圖。 FIG. 2A shows a schematic diagram of a single user equipment in a wireless communication system. FIG. 2B shows a schematic diagram of a multi-user equipment in a wireless communication system.
第3圖顯示根據本案一實施例的波束選擇/再選擇的示意圖。 FIG. 3 is a schematic diagram of beam selection / reselection according to an embodiment of the present invention.
第4圖,其顯示在本案一實施例中,對各波束導入「波束掃描序列識別碼」,以幫助扇形區塊內/扇形區塊間波束選擇/再選擇。 FIG. 4 shows that in an embodiment of the present invention, a “beam scanning sequence identification code” is introduced into each beam to help beam selection / reselection within a sector / inter sector.
第5圖顯示可能的波束掃描序列識別碼混淆。 Figure 5 shows possible beam scan sequence identifier confusion.
第6圖顯示,在本案實施例中,透過波束來傳輸波束掃描序列(BSS),以幫助扇形區塊內/扇形區塊間波束選擇/再選擇。 FIG. 6 shows that, in the embodiment of the present invention, a beam scanning sequence (BSS) is transmitted through a beam to help beam selection / reselection within a sector / inter sector.
第7圖顯示本案實施例如何解決波束掃描序列識別碼混淆的另一例。 FIG. 7 shows another example of how to solve the confusion of the identification codes of the beam scanning sequence in the embodiment of the present case.
第8A圖顯示在本案一實施例中,以集中式結構(localized structure)來傳輸PBSS與SBSS,而第8B圖顯示在本案一實施例中,以分散式結構(distributed structure)來傳輸PBSS與SBSS。 FIG. 8A shows that in an embodiment of the present case, PBSS and SBSS are transmitted in a localized structure, and FIG. 8B shows that in an embodiment of the present case, PBSS and SBSS are transmitted in a distributed structure .
第9圖顯示根據本案實施例的信號品質列表。 FIG. 9 shows a signal quality list according to an embodiment of the present invention.
第10圖顯示根據本案實施例之進行扇形區塊內波束選擇之示意圖。 FIG. 10 is a schematic diagram showing beam selection in a sector block according to an embodiment of the present invention.
第11圖顯示根據本案實施例之進行扇形區塊間波束選擇之示意圖。 FIG. 11 shows a schematic diagram of beam selection between sector blocks according to an embodiment of the present invention.
第12圖顯示根據本案一實施例的用戶設備的功能方塊圖。 FIG. 12 is a functional block diagram of a user equipment according to an embodiment of the present invention.
第13圖顯示根據本案一實施例的網路裝置(如RFN)的功能方塊圖。 FIG. 13 shows a functional block diagram of a network device (such as an RFN) according to an embodiment of the present invention.
第14圖顯示根據本案一實施例的用戶設備的操作示意圖。 FIG. 14 is a schematic diagram illustrating an operation of a user equipment according to an embodiment of the present invention.
第15圖顯示根據本案一實施例的網路裝置(如RFN)的操作示意圖。 FIG. 15 shows an operation diagram of a network device (such as an RFN) according to an embodiment of the present invention.
本說明書的技術用語係參照本技術領域之習慣用語,如本說明書對部分用語有加以說明或定義,該部分用語之解釋係以本說明書之說明或定義為準。本揭露之各個實施例分別具有一或多個技術特徵。在可能實施的前提下,本技術領域具有通常知識者可選擇性地實施任一實施例中部分或全部的技術特徵,或者選擇性地將這些實施例中部分或全部的技術特徵加以組合。 The technical terms in this specification refer to the customary terms in the technical field. If some terms are described or defined in this specification, the interpretation of these terms is subject to the description or definition in this specification. Each embodiment of the present disclosure has one or more technical features. Under the premise of possible implementation, those with ordinary knowledge in the technical field may selectively implement part or all of the technical features in any embodiment, or selectively combine part or all of the technical features in these embodiments.
現請參照第1圖,其顯示根據本案一實施例的無線通訊系統的示意圖。如第1圖所示,根據本案實施例的無線通訊系統100包括:至少一控制裝置110與複數個網路裝置。至少一用戶設備(例如但不受限於,智慧型手機)無線耦接至無線通訊系統100,並由其中一個扇形區塊服務。為方便解釋,在此以該些網路裝置是無線前端節點(Radio Front Node,RFN)RFN1與RFN2為例做說明,但本案並不受限於此。例如,網路裝置可能是大型基地台(main base station),RFN, gNB(十億位元節點B,gigabit Node B),eNB(演進節點B,Evolved Node B)等。更甚者,無線通訊系統100可以包括多個控制裝置110,各控制裝置110可以控制多個網路裝置。另外,各網路裝置RFN1與RFN2的天線陣列(未示出)可以涵蓋複數個扇形區塊(sector)。例如,各網路裝置RFN1與RFN2的天線陣列(未示出)可以包括複數個天線,該些天線可以形成3個扇形區塊,各扇形區塊涵蓋120度。各扇形區塊形成(form)複數個波束(beam),各波束指向不同方向。例如,在120度的空間內,一個扇形區塊可以形成8個波束,各波束指向不同方向。 一般而言,如果一個扇形區塊包括愈多根天線,則各波束的寬度愈窄,各波束所傳出的無線信號的傳輸距離愈遠;反之,如果一個扇形區塊包括較少根天線,則各波束的寬度愈寬,各波束所傳出的無線信號的傳輸距離愈近。相似地,用戶設備具有天線陣列(未示出),該用戶設備的天線陣列可以形成複數個波束,各波束指向不同方向。 Please refer to FIG. 1, which shows a schematic diagram of a wireless communication system according to an embodiment of the present invention. As shown in FIG. 1, the wireless communication system 100 according to the embodiment of the present case includes: at least one control device 110 and a plurality of network devices. At least one user equipment (such as, but not limited to, a smart phone) is wirelessly coupled to the wireless communication system 100 and is served by one of the sector blocks. For convenience of explanation, the network devices are radio front node (RFN) RFN1 and RFN2 as an example for explanation, but this case is not limited to this. For example, the network device might be a main base station, RFN, gNB (gigabit Node B), eNB (Evolved Node B), etc. Furthermore, the wireless communication system 100 may include multiple control devices 110, and each control device 110 may control multiple network devices. In addition, the antenna arrays (not shown) of each of the network devices RFN1 and RFN2 may cover a plurality of sector sectors. For example, the antenna arrays (not shown) of each of the network devices RFN1 and RFN2 may include a plurality of antennas, and the antennas may form three sector blocks, each sector block covering 120 degrees. Each fan-shaped block forms a plurality of beams, each beam pointing in a different direction. For example, in a 120-degree space, a sector can form 8 beams, each beam pointing in a different direction. Generally speaking, if a sector block includes more antennas, the width of each beam is narrower, and the transmission distance of the wireless signal transmitted by each beam is longer. Conversely, if a sector block includes fewer antennas, The wider the width of each beam, the closer the transmission distance of the wireless signals transmitted by each beam. Similarly, the user equipment has an antenna array (not shown), and the antenna array of the user equipment can form a plurality of beams, each beam pointing in a different direction.
例如,網路裝置RFN1涵蓋3個扇形區塊,且網路裝置RFN2涵蓋3個扇形區塊,但為簡化起見,在第1圖中顯示兩個扇形區塊S1-1與S2-1,扇形區塊S1-1屬於網路裝置RFN1,而扇形區塊S2-1屬於網路裝置RFN2,各扇形區塊S1-1與S2-1形成4個波束Bn(n=0-3,n為正整數,代表波束識別碼(beam ID),亦可稱為波束索引(beam index)),各波束Bn指向不同方向。 For example, the network device RFN1 covers 3 sectors, and the network device RFN2 covers 3 sectors, but for simplicity, two sector sectors S1-1 and S2-1 are shown in Figure 1. The sector S1-1 belongs to the network device RFN1, and the sector S2-1 belongs to the network device RFN2. Each sector S1-1 and S2-1 form 4 beams Bn (n = 0-3, n is A positive integer represents a beam ID (also known as a beam index), and each beam Bn points in a different direction.
第2A圖顯示在無線通訊系統中,單一用戶設備存在時的示意圖。第2B圖顯示在無線通訊系統中,多用戶設備存在時的示意圖。 FIG. 2A shows a schematic diagram of a single user equipment in a wireless communication system. FIG. 2B shows a schematic diagram of a multi-user equipment in a wireless communication system.
如第2A圖與第2B圖所示,在無線通訊系統200中,控制裝置210管理3個網路裝置RFN0-RFN2,網路裝置RFN0涵蓋3個扇形區塊S0-0至S0-2,網路裝置RFN1涵蓋3個扇形區塊S1-0至S1-2,網路裝置RFN2涵蓋3個扇形區塊S2-0至S2-2。各扇形區塊S0-0至S2-2皆形成8個波束B0-B7,各扇形區塊覆蓋相同角度(亦即120度)。網路裝置RFN0-RFN2的波束架構參數分別為configuration 0-2。以網路裝置RFN0的波束架構參數configuration 0而言,扇形區塊S0-0的8個波束B0-B7分別在t=0至t=7進行掃描;扇形區塊S0-1與S0-2亦同。以網路裝置RFN1的波束架構參數configuration 1而言,扇形區塊S1-0的波束B0在t=7時進行掃描,波束B1在t=0時進行掃描,其餘類推。相同地,以網路裝置RFN2的波束架構參數configuration 2而言,扇形區塊S2-0的波束B0在t=6時進行掃描,波束B1在t=7時進行掃描,其餘可類推。 波束架構參數代表不同的波束排列方式。 As shown in FIG. 2A and FIG. 2B, in the wireless communication system 200, the control device 210 manages three network devices RFN0-RFN2, and the network device RFN0 covers three sector blocks S0-0 to S0-2. The road device RFN1 covers 3 sectors S1-0 to S1-2, and the network device RFN2 covers 3 sectors S2-0 to S2-2. Each sector S0-0 to S2-2 forms eight beams B0-B7, and each sector covers the same angle (that is, 120 degrees). The beam architecture parameters of the network devices RFN0-RFN2 are respectively configuration 0-2. In terms of the beam configuration parameter configuration 0 of the network device RFN0, the eight beams B0-B7 of the sector block S0-0 are scanned at t = 0 to t = 7 respectively; the sector blocks S0-1 and S0-2 are also scanned. with. In terms of the beam structure parameter configuration 1 of the network device RFN1, the beam B0 of the sector block S1-0 is scanned at t = 7, the beam B1 is scanned at t = 0, and the rest can be deduced by analogy. Similarly, in terms of the beam architecture parameter configuration 2 of the network device RFN2, the beam B0 of the sector block S2-0 is scanned at t = 6, the beam B1 is scanned at t = 7, and the rest can be analogized. The beam architecture parameters represent different beam arrangements.
對網路裝置RFN2而言,在時間t=0時,扇形區塊S2-0發出波束B2進行掃描,扇形區塊S2-1發出波束B2進行掃描,扇形區塊S2-2發出波束B2進行掃描,網路裝置RFN0與RFN1亦同。 For network device RFN2, at time t = 0, sector S2-0 sends beam B2 for scanning, sector S2-1 sends beam B2 for scanning, and sector S2-2 sends beam B2 for scanning The same goes for network devices RFN0 and RFN1.
在第2A圖中,當t=1與t=5時,用戶設備UE0分別可以接收到由扇形區塊S2-1的波束B3與扇形區塊S0-2的波束B5所傳來的信號。 In FIG. 2A, when t = 1 and t = 5, the user equipment UE0 can receive signals transmitted by the beam B3 of the sector block S2-1 and the beam B5 of the sector block S0-2, respectively.
在第2B圖中,當t=1、t=4與t=5時,用戶設備UE0分別可以接收到由扇形區塊S2-1的波束B3所傳來的信號、由扇形區塊S1-0的波束B5所傳來的信號與扇形區塊S0-2的波束B5所傳來的信號。當 t=2、t=3與t=4時,用戶設備UE1分別可以接收到由扇形區塊S1-0的波束B3所傳來的信號、由扇形區塊S2-1的波束B5所傳來的信號與扇形區塊S0-2的波束B4所傳來的信號。 In Figure 2B, when t = 1, t = 4, and t = 5, the user equipment UE0 can respectively receive the signal transmitted by the beam B3 of the sector block S2-1 and the sector block S1-0. The signal transmitted by the beam B5 of the S5 and the signal transmitted by the beam B5 of the sector block S0-2. when When t = 2, t = 3, and t = 4, the user equipment UE1 can respectively receive the signal transmitted by the beam B3 of the sector block S1-0 and the signal transmitted by the beam B5 of the sector block S2-1. The signal and the signal transmitted by the beam B4 of the sector block S0-2.
請參照第3圖,其顯示根據本案一實施例的波束選擇/再選擇的示意圖。如第3圖所示,在步驟310中,網路裝置(RFN)傳輸下行(DL)信號給用戶設備(UE)。在步驟320中,用戶設備(UE)對所接收到的下行信號進行波束品質測量。在步驟330中,用戶設備(UE)將波束品質測量結果上傳給網路裝置(RFN)。在步驟340中,網路裝置(RFN)可以得知扇形區塊與波束品質測量結果。如果扇形區塊與波束品質測量結果顯示要進行扇形區塊內(intra-sector)波束選擇/再選擇的話,則扇形區塊內波束選擇/再選擇可由網路裝置(RFN)進行。另一方面,如果扇形區塊與波束品質測量結果顯示要進行扇形區塊間(inter-sector)波束選擇/再選擇的話,則由網路裝置(RFN)告知控制裝置(如第1圖的控制裝置110),由控制裝置進行扇形區塊間波束選擇/再選擇。第3圖的各步驟的細節將於底下說明之。 Please refer to FIG. 3, which shows a schematic diagram of beam selection / reselection according to an embodiment of the present invention. As shown in FIG. 3, in step 310, the network device (RFN) transmits a downlink (DL) signal to a user equipment (UE). In step 320, the user equipment (UE) performs beam quality measurement on the received downlink signal. In step 330, the user equipment (UE) uploads a beam quality measurement result to a network device (RFN). In step 340, the network device (RFN) can obtain the fan block and beam quality measurement results. If the sector and beam quality measurement results indicate that intra-sector beam selection / reselection is to be performed, the intra-sector beam selection / reselection may be performed by a network device (RFN). On the other hand, if the sector block and beam quality measurement results indicate that inter-sector beam selection / reselection is to be performed, the network device (RFN) informs the control device (such as the control in Figure 1) (Device 110), the fan-shaped inter-block beam selection / reselection is performed by the control device. The details of each step in Figure 3 will be explained below.
現將說明扇形區塊內波束選擇/再選擇。例如,以第1圖為例,假設目前用戶設備正由扇形區塊S1-1的波束B3服務。然而,根據用戶設備所進行的扇形區塊與波束品質測量結果,控制裝置及/或網路裝置判斷扇形區塊S1-1的波束B2對用戶設備而言是較好的,亦即,用戶設備選擇波束B2而非波束B3。但用戶設備並不知道所選擇的該波束B2屬於哪一個扇形區塊。透過用戶設備所回傳的信號測量品質結果,網路裝置(RFN)得知用戶設備所選擇的波束B2屬於扇形區塊 S1-1。所以,網路裝置(RFN)可以自行選擇由扇形區塊S1-1的波束B2來服務用戶設備。亦即,「扇形區塊內波束選擇/再選擇」是指,前一服務波束(扇形區塊S1-1的波束B3)與下一服務波束(扇形區塊S1-1的波束B2)皆屬於同一服務扇形區塊,服務波束切換是在同一服務扇形區塊內進行。故而,在本案實施例中,為避免傳輸延遲,「扇形區塊內波束選擇/再選擇」可由網路裝置(RFN)決定,而無需上傳至控制裝置再由控制裝置決定。 Beam selection / reselection within a sector will now be explained. For example, taking FIG. 1 as an example, it is assumed that the user equipment is currently being served by the beam B3 of the sector block S1-1. However, according to the sector block and beam quality measurement results performed by the user equipment, the control device and / or the network device determine that the beam B2 of the sector block S1-1 is better for the user equipment, that is, the user equipment Select beam B2 instead of beam B3. However, the user equipment does not know which sector the selected beam B2 belongs to. By measuring the quality of the signal returned by the user equipment, the network device (RFN) learns that the beam B2 selected by the user equipment belongs to a sector block. S1-1. Therefore, the network device (RFN) can choose to serve the user equipment by the beam B2 of the sector S1-1. That is, "beam selection / reselection within a sector block" means that the previous service beam (beam B3 of sector block S1-1) and the next service beam (beam B2 of sector block S1-1) belong to In the same service sector, service beam switching is performed in the same service sector. Therefore, in the embodiment of the present case, in order to avoid transmission delay, the "beam selection / reselection within a sector block" can be determined by a network device (RFN), without uploading to the control device and then determined by the control device.
現將說明扇形區塊間波束選擇/再選擇。例如,以第1圖為例,假設目前用戶設備正由扇形區塊S1-1的波束B3服務。扇形區塊與波束品質測量結果顯示波束B1對用戶設備而言是較好的(然而,用戶設備並不知道所選擇的該波束B1屬於哪一個扇形區塊,在此假設此波束B1屬於扇形區塊S2-1)。透過用戶設備所回傳的信號測量品質結果,網路裝置(RFN)得知需要切換至扇形區塊S2-1的波束B1來服務用戶設備。所以,網路裝置(RFN)告知控制裝置110,由控制裝置110進行扇形區塊間波束選擇/再選擇,以讓扇形區塊S2-1的波束B1來服務用戶設備。亦即,「扇形區塊間波束選擇/再選擇」是指,前一服務波束(扇形區塊S1-1的波束B3)與下一服務波束(扇形區塊S2-1的波束B1)屬於不同服務扇形區塊,服務波束切換是在不同扇形區塊內進行。在本案實施例中,「扇形區塊間波束選擇/再選擇」不是由網路裝置(RFN)決定,而是由控制裝置決定。 Beam selection / reselection between sector blocks will now be explained. For example, taking FIG. 1 as an example, it is assumed that the user equipment is currently being served by the beam B3 of the sector block S1-1. The sector and beam quality measurement results show that the beam B1 is better for the user equipment (however, the user equipment does not know which sector the beam B1 belongs to, and it is assumed that the beam B1 belongs to the sector Block S2-1). By measuring the quality of the signal returned by the user equipment, the network device (RFN) learns that it needs to switch to the beam B1 of the sector S2-1 to serve the user equipment. Therefore, the network device (RFN) informs the control device 110 that the control device 110 performs beam sector selection / reselection between sectors, so that the beam B1 of sector sector S2-1 serves user equipment. That is, "beam selection / reselection between sector blocks" means that the previous service beam (beam B3 of sector block S1-1) and the next service beam (beam B1 of sector block S2-1) belong to different Service sector block, service beam switching is performed in different sector blocks. In the embodiment of the present case, the “sector-to-sector beam selection / reselection” is not determined by the network device (RFN), but by the control device.
另外,由於用戶設備具有多個波束,所以用戶設備可從該些波束中擇一當成目標用戶設備波束,以跟網路裝置(RFN)之間進行信號傳輸。 In addition, since the user equipment has multiple beams, the user equipment can select one of the beams as a target user equipment beam to perform signal transmission with a network device (RFN).
現請參考第4圖,其顯示在本案一實施例中,對各波束導入「波束掃描序列識別碼」(beam scan sequence ID或者標示為Seq.ID),以幫助扇形區塊內/扇形區塊間波束選擇/再選擇。請注意,在本案實施例中,波束掃描序列識別碼的定義不同於波束識別碼(beam ID)與波束索引(beam index)。波束掃描序列識別碼可代表各波束的掃描順序。 Please refer to FIG. 4, which shows that in an embodiment of the present case, a “beam scan sequence ID” (or labeled as Seq. ID) is introduced into each beam to help the sector / sector. Interbeam selection / reselection. Please note that, in the embodiment of the present invention, the definition of the beam scanning sequence identification code is different from the beam ID and the beam index. The beam scanning sequence identification code may represent the scanning order of each beam.
如第4圖所示,扇形區塊S1-1的波束B0-B3的波束掃描序列識別碼分別為Seq.ID0、Seq.ID1、Seq.ID2與Seq.ID3;而扇形區塊S2-1的波束B0-B3的波束掃描序列識別碼也分別為Seq.ID0、Seq.ID1、Seq.ID2與Seq.ID3。亦即,不同扇形區塊應用相同的波束掃描序列識別碼。但當知本案並不受限於此。 As shown in FIG. 4, the beam scanning sequence identification codes of the beams B0-B3 of the sector block S1-1 are Seq.ID0, Seq.ID1, Seq.ID2, and Seq.ID3, respectively; The beam scanning sequence identification codes of the beams B0-B3 are also Seq.ID0, Seq.ID1, Seq.ID2, and Seq.ID3, respectively. That is, the same beam scanning sequence identification code is applied to different sector blocks. But know that this case is not limited to this.
亦即,假設在無線通訊系統中使用J個波束掃描序列識別碼(以第4圖為例,共用了4個波束掃描序列識別碼),則J的範圍可以是:Q≦J≦(Q*Nd),其中,Q代表單一扇形區塊的總波束數,而Nd則代表同一控制裝置所控制的扇形區塊總數量(以第1圖而言,Q=4而Nd=2)。 That is, assuming that J beam scanning sequence identification codes are used in the wireless communication system (take FIG. 4 as an example, 4 beam scanning sequence identification codes are shared), the range of J can be: Q ≦ J ≦ (Q * Nd), where Q represents the total number of beams in a single sector block, and Nd represents the total number of sector blocks controlled by the same control device (for the first figure, Q = 4 and Nd = 2).
當在進行波束選擇時,用戶設備進行J次的測量/偵測即可以找出所欲選擇的波束。故而,第4圖的優點在於測量較快,以及低信令開銷(signaling overhead)。 When beam selection is being performed, the user equipment performs J measurements / detections to find the beam to be selected. Therefore, the advantages of Figure 4 are faster measurement and low signaling overhead.
然而,如果波束掃描序列識別碼的設計不良,可能導致「波束掃描序列識別碼混淆(ambiguity)」。第5圖顯示可能的波束掃描序列識別碼混淆。如第5圖所示,當時間t=2時,用戶設備UE的波束B1同時接收由扇形區塊S1-1的波束B2(波束掃描序列識別碼為Seq.ID2)與扇形區塊S2-1的波束B2(波束掃描序列識別碼為Seq.ID2)所發出的信號,故而,對於用戶設備而言,造成混淆。亦即,如果用戶設備同時接收到的多個波束具有相同波束掃描序列識別碼,則用戶設備會被混淆。 However, if the design of the beam scanning sequence identification code is poor, it may lead to "ambiguity of the beam scanning sequence identification code." Figure 5 shows possible beam scan sequence identifier confusion. As shown in Fig. 5, when time t = 2, the beam B1 of the user equipment UE simultaneously receives the beam B2 (the beam scanning sequence identification code is Seq. ID2) and the sector block S2-1 from the sector block S1-1. The signal transmitted by the beam B2 (beam scanning sequence identification code is Seq. ID2) of the BS, thus causing confusion for the user equipment. That is, if multiple beams received by the user equipment at the same time have the same beam scanning sequence identification code, the user equipment will be confused.
故而,在本案實施例中,利用波束掃描序列(beam scan sequence,BSS)來解決波束掃描序列識別碼混淆。BSS具有交錯(interlaced)特性。第6圖顯示,在本案實施例中,波束可以將波束掃描序列(BSS)傳輸出去,以幫助扇形區塊內/扇形區塊間波束選擇/再選擇。 Therefore, in the embodiment of the present case, a beam scan sequence (beam scan sequence (BSS) to resolve the confusion of beam scanning sequence identifiers. BSS has interlaced characteristics. FIG. 6 shows that, in the embodiment of the present case, the beam can transmit a beam scanning sequence (BSS) to help beam selection / reselection within the sector / inter sector sector.
下表1顯示可能的波束/扇形區塊傳輸態。 Table 1 below shows the possible beam / fan sector transmission states.
如上表1所示,扇形區塊S1-1的波束B0-B3的波束掃描序列識別碼分別為Seq.ID0、Seq.ID1、Seq.ID2與Seq.ID3;而扇形區塊S2-1的波束B0-B3的波束掃描序列識別碼分別為Seq.ID3、Seq.ID0、Seq.ID1與Seq.ID2。所以,當時間t=2時,用戶設備UE的波束B1同時接收到由扇形區塊S1-1的波束B2(波束掃描序列識別碼為Seq.ID2)與扇形區塊S2-1的波束B2(波束掃描序列識別碼為Seq.ID1)所發出的信號(這些信號包括BSS),故而,對於用戶設備而言,將不會造成混淆,因為該些波束的波束掃描序列識別碼彼此不同。亦即,不同扇形區塊的具有不同波束掃描序列識別碼的複數個波束如果同時被用戶設備接收,則用戶設備不會被混淆。 As shown in Table 1 above, the beam scanning sequence identification codes of the beams B0-B3 of the sector block S1-1 are Seq.ID0, Seq.ID1, Seq.ID2, and Seq.ID3 respectively; and the beam of the sector block S2-1 The beam scanning sequence identification codes of B0-B3 are Seq.ID3, Seq.ID0, Seq.ID1, and Seq.ID2, respectively. Therefore, when time t = 2, the beam B1 of the user equipment UE simultaneously receives the beam B2 (the beam scanning sequence identification code is Seq.ID2) of the sector S1-1 and the beam B2 of the sector S2-1 ( The signals (the signals include BSS) sent by the beam scanning sequence identification codes are Seq. ID1. Therefore, for the user equipment, there will be no confusion because the beam scanning sequence identification codes of the beams are different from each other. That is, if a plurality of beams with different beam scanning sequence identifiers of different sector blocks are received by the user equipment at the same time, the user equipment will not be confused.
下表2更顯示波束掃描序列識別碼的映對(mapping)的一例。 Table 2 below further shows an example of mapping of the beam scanning sequence identifier.
由上表2可看出,以單一控制裝置控制8個扇形區塊,各扇形區塊形成4個波束來看,同時間最多有8個不同波束(該些波束的波束掃描序列識別碼皆彼此不同)可發射至用戶設備(所發射的信號可能包括BSS),如此一來,在進行波束選擇/再選擇時,將不會對用戶設備造成波束掃描序列識別碼混淆。 As can be seen from Table 2 above, a single control device controls 8 sector blocks, and each sector block forms 4 beams. At the same time, there are up to 8 different beams (the beam scanning sequence identification codes of these beams are all (Different) can be transmitted to the user equipment (the transmitted signal may include BSS). In this way, when beam selection / reselection is performed, the user equipment will not cause the beam scanning sequence identification code to be confused.
第7圖顯示本案實施例如何解決波束掃描序列識別碼混淆的另一例。如第7圖所示,當時間t=2時,處在範圍A7內的用戶設備將接收到2個波束B2與B2(波束掃描序列識別碼分別為Seq.ID2與Seq.ID3)所發出的信號(信號含有BSS)。 FIG. 7 shows another example of how to solve the confusion of the identification codes of the beam scanning sequence in the embodiment of the present case. As shown in Figure 7, when the time t = 2, the user equipment in the range A7 will receive two beams B2 and B2 (beam scanning sequence identification codes are Seq.ID2 and Seq.ID3 respectively). Signal (signal contains BSS).
另外,BSS亦可分為主要BSS(PBSS,primary BSS)與次要BSS(SBSS,secondary BSS)。在網路進入模式(network entry mode)下,PBSS有助於快速找到UE的目標波束,而SBSS則有助於找到服務扇形區塊的服務波束。網路進入模式是指,用戶設備剛開機之時,故而用戶設備尚未找到服務扇形區塊與服務波束。至於在UE連接模式下(UE connection mode),則可利用PSBB或SBSS來協助追蹤UE波束與服務波束。UE連接模式是指,UE已經跟服務扇形區塊之間完成連接。 In addition, BSS can be divided into primary BSS (PBSS, primary BSS) and secondary BSS (SBSS, secondary BSS). In network entry mode, PBSS helps to quickly find the target beam of the UE, while SBSS helps to find the service beam of the serving sector block. The network entry mode refers to when the user equipment is just turned on, so the user equipment has not yet found the service sector block and the service beam. As for the UE connection mode, PSBB or SBSS can be used to help track the UE beam and service beam. The UE connection mode means that the UE has completed the connection with the serving sector block.
底下將說明在進行無線信號的傳輸時,PBSS與SBSS的配置。第8A圖顯示在本案一實施例中,以集中式結構(localized structure)來傳輸PBSS與SBSS,而第8B圖顯示在本案一實施例中,以分散式結構(distributed structure)來傳輸PBSS與SBSS。 The configuration of PBSS and SBSS when transmitting wireless signals will be described below. FIG. 8A shows that in an embodiment of the present case, PBSS and SBSS are transmitted in a localized structure, and FIG. 8B shows that in an embodiment of the present case, PBSS and SBSS are transmitted in a distributed structure .
在第8A圖與第8B圖中,1個無線傳輸時框(radio frame)包括10個子時框(subframe,SF)SF0-SF9,其中,ctrl HD代表控制標頭(control header)。假設第0個子時框SF0被用以傳輸控制標頭(當然本案並不受限於此,也可利用其他子時框來傳輸控制標頭)。控制標頭包括下行控制標頭(DL Ctrl HD)與上行控制標頭(UL Ctrl HD),其中,下行控制標頭(DL Ctrl HD)用以配置PBSS與SBSS。 In FIG. 8A and FIG. 8B, one radio transmission frame (radio frame) includes 10 subframes (SF) SF0-SF9, where ctrl HD represents a control header. Assume that the 0th sub-time frame SF0 is used to transmit the control header (of course, this case is not limited to this, and other sub-time frames can also be used to transmit the control header). The control header includes a downlink control header (DL Ctrl HD) and an uplink control header (UL Ctrl HD). The downlink control header (DL Ctrl HD) is used to configure PBSS and SBSS.
如第8A圖所示,波束B0以Configuration 0所定義的方式(例如波束B0的波束掃描序列識別碼為Seq.ID0),來傳輸2個PBSS 0信號給用戶設備。接著,波束B1以Configuration 1所定義的方式(例如波束B1的波束掃描序列識別碼為Seq.ID1),來傳輸2個PBSS 1信號 給用戶設備。依此類推。在波束B0-B7傳輸完PBSS之後,波束B0以Configuration 1所定義的方式,來傳輸1個SBSS 0信號給用戶設備;波束B1以Configuration 2所定義的方式,來傳輸1個SBSS 1信號給用戶設備其餘可依此類推。 As shown in FIG. 8A, the beam B0 transmits two PBSS 0 signals to the user equipment in a manner defined by Configuration 0 (for example, the beam scanning sequence identification code of the beam B0 is Seq. ID0). Next, beam B1 transmits two PBSS 1 signals in a manner defined by Configuration 1 (for example, the beam scanning sequence identification code of beam B1 is Seq.ID1). To user equipment. So on and so forth. After beams B0-B7 transmit PBSS, beam B0 transmits 1 SBSS 0 signal to the user equipment in the manner defined by Configuration 1; beam B1 transmits 1 SBSS 1 signal to the user in the manner defined by Configuration 2 The rest of the equipment can be deduced by analogy.
另一方面,如第8B圖所示,波束B0以Configuration 0所定義的方式,來傳輸2個PBSS 0信號給用戶設備,以及,波束B0以Configuration 1所定義的方式,來傳輸4個SBSS 0信號給用戶設備。 其餘可依此類推。 On the other hand, as shown in FIG. 8B, beam B0 transmits 2 PBSS 0 signals to the user equipment in a manner defined by Configuration 0, and beam B0 transmits 4 SBSS 0 in a manner defined by Configuration 1. Signal to user equipment. The rest can be deduced by analogy.
更進一步地說明,在傳輸PBSS與SBSS時,波束掃描序列識別碼的映對表例如但不受限於如下表3。 To further explain, when transmitting PBSS and SBSS, the mapping table of the beam scanning sequence identification code is, for example, but not limited to, Table 3 below.
在第8A圖的集中式結構下,PBSS與SBSS的傳輸沒有混雜(interleaved),亦即,波束B0-B7先來傳輸PBSS,之後,波束B0-B7才傳輸SBSS。而且,對於波束B0而言,在第8A圖中,在傳輸PBSS與SBSS時,波束B0套用不同的波束架構參數configuration(例如,傳輸PBSS時,波束B0套用configuration 0,而傳輸SBSS時,波束B0套用configuration 1)。 In the centralized structure of FIG. 8A, the transmission of PBSS and SBSS is not interleaved, that is, beams B0-B7 first transmit PBSS, and then beams B0-B7 transmit SBSS. Moreover, for beam B0, in Figure 8A, when transmitting PBSS and SBSS, beam B0 applies a different beam architecture parameter configuration (for example, when transmitting PBSS, beam B0 applies configuration 0, and when transmitting SBSS, beam B0 Apply configuration 1).
至於在第8B圖的分散式架構中,PBSS與SBSS的傳輸被混雜。亦即,於波束B0傳輸完PBSS與SBSS後,波束B1傳輸PBSS與SBSS。同樣地,對於波束B0而言,在第8B圖中,在傳輸PBSS與SBSS時,波束B0套用不同的波束架構參數configuration(例如,傳輸PBSS 時,波束B0套用configuration 0,而傳輸SBSS時,波束B0套用configuration 1)。 As for the decentralized architecture in Fig. 8B, the transmission of PBSS and SBSS is mixed. That is, after transmitting PBSS and SBSS in beam B0, beam B1 transmits PBSS and SBSS. Similarly, for beam B0, in Figure 8B, when transmitting PBSS and SBSS, beam B0 applies different beam architecture parameter configurations (for example, transmitting PBSS In this case, configuration B is applied to beam B0, and configuration 1) is applied to beam B0 when transmitting SBSS.
現將說明本案實施例如何進行扇形區塊內/扇形區塊間波束選擇。在進行波束追蹤時,用戶設備測量波束的信號品質,例如但不受限於,SNR(訊號雜訊比,Signal-to-noise ratio),SIR(信號干擾比,Signal to Interference ratio),SINR(信號與干擾加雜訊比,Signal to Interference plus Noise Ratio),RSSI(接收信號強度指示,receive signal strength indicator),RSRP(参考信號接收功率,Reference Signal Receiving Power),RSRQ(參考信號接收質量,Reference Signal Received Quality)等。 How to perform the intra-sector / inter-sector beam selection in the embodiment of the present case will be described. When performing beam tracking, the user equipment measures the signal quality of the beam, such as, but not limited to, SNR (Signal-to-noise ratio, Signal-to-noise ratio), SIR (Signal to Interference ratio), SINR ( Signal to Interference plus Noise Ratio), RSSI (receive signal strength indicator), RSRP (Reference Signal Receiving Power), RSRQ (Reference Signal Receiving Quality, Reference Signal Received Quality).
用戶設備可以計算成對的波束與用戶設備波束的信號品質,並將之列於表中(或者儲存於用戶設備的記憶體內)。例如,以第6圖為例,在t=2時,用戶設備可以計算用戶設備波束B1所接收到的兩個波束B2(波束掃描序列識別碼分別為Seq.ID2與Seq.ID1)的個別無線信號品質,並將之列於表中。另外,用戶設備可以計算/決定所接收到的波束掃描序列信號的信號品質。 The user equipment can calculate the signal quality of the paired beam and the user equipment beam and list them in a table (or stored in the memory of the user equipment). For example, using FIG. 6 as an example, when t = 2, the user equipment can calculate the individual radios of the two beams B2 (beam scanning sequence identification codes are Seq.ID2 and Seq.ID1) received by the user equipment beam B1. The signal quality is listed in the table. In addition, the user equipment may calculate / determine the signal quality of the received beam scanning sequence signal.
例如,用戶設備所需要計算的SNR如第9圖。第9圖顯示根據本案實施例的信號品質列表。第9圖以用戶設備具有4個波束且用戶設備接收4個波束(其波束掃描序列識別碼分別為Seq.ID0-Seq.ID3)為例做說明(然而,用戶設備並不知道該些波束屬於哪一個扇形區塊),但當知本案不受限於此。在第9圖中,於第1個下行(DL)扇形區塊掃描波束周期內(t=0),假設傳送波束為候選服務波束0(i.e.Seq.ID 0),用戶設備分別利用UE波束B0-B3來接收並跟候選服務波束0(i.e.Seq.ID 0)進行匹配(matched)後,用戶設備得到無線信號品質γ0,0(0)、γ1,0(0)、γ2,0(0)、γ3,0(0);接著,假設傳送波束是候選服務波束1(i.e.Seq.ID 1),用戶設備分別利用UE波束B0-B3來接收並跟候選服務波束1(i.e.Seq.ID 1)進行匹配後,用戶設備得到無線信號品質γ0,1(0)、γ1,1(0)、γ2,1(0)、γ3,1(0)。其餘可依此類推。在第9圖中,γa,b(t)代表,在第t個(t為傳輸時間索引,t=0-3)DL扇形區塊掃描波束周期內,用戶設備測量利用UE波束Ba(a=0-3)來接收並假設傳送波束為候選服務波束0-3(其波束掃描序列辨識碼為Seq.IDb(b=0-3),於進行匹配後,用戶設備所得到的無線信號品質。故而,在4個DL扇形區塊掃描波束周期(從t=0到t=3)內,用戶設備獲得對扇形區塊的64個可能的無線信號量測結果,且儲存所量測到的64個無線信號品質γa,b(t)。接著,用戶設備的處理單元(未示出)可以決定這64個無線信號品質γa,b(t)當中的一目標值(例如但不受限於,最大值),並將接收到這個目標無線信號品質的該波束選擇為目標UE波束(亦即,於正常操作下,UE將利用此波束來接收無線信號),並將發出目標無線信號品質的該假設傳送波束選擇為「UE選擇波束」(亦可稱為「候選服務波束」,亦即,用戶設備想要讓「候選服務波束」服務)。在此假設,在這64個無線信號品質γa,b(t)當中的最大值為γ2,1(t)(其對應到「t=1」與「Seq.ID1」),則用戶設備將接收到這個無線信號品質最大值的該波束B2選擇為目標UE波束。另外,用戶設備回傳對應到該無線信號品質最大值的傳輸時間索引(在此例中,t=1)與UE選擇波 束的波束掃描序列識別碼(在此例中為Seq.ID1)回傳給扇形區塊。另外,在回傳時,用戶設備可以將目標UE波束所測量到的無線信號品質的全部或者一部份回傳給扇形區塊。 For example, the SNR that the user equipment needs to calculate is shown in Figure 9. FIG. 9 shows a signal quality list according to an embodiment of the present invention. Figure 9 uses the user equipment with 4 beams and the user equipment receives 4 beams (the beam scanning sequence identifiers are Seq.ID0-Seq.ID3) as an example (however, the user equipment does not know which beams belong to Which sector), but know that the case is not limited to this. In Figure 9, during the first downlink (DL) sector sector scanning beam period (t = 0), it is assumed that the transmission beam is the candidate service beam 0 (ieSeq.ID 0), and the user equipment uses the UE beam B0- After receiving and matching with candidate service beam 0 (ieSeq.ID 0), the user equipment obtains radio signal quality γ 0,0 (0), γ 1,0 (0), γ 2,0 (0 ), Γ 3,0 (0); then, assuming that the transmission beam is candidate service beam 1 (ieSeq.ID 1), the user equipment uses UE beams B0-B3 to receive and follow the candidate service beam 1 (ieSeq.ID 1) After the matching is performed, the user equipment obtains the wireless signal quality γ 0,1 (0), γ 1,1 (0), γ 2,1 (0), γ 3,1 (0). The rest can be deduced by analogy. In Figure 9, γ a, b (t) represents that during the t-th (t is the transmission time index, t = 0-3) DL sector block scanning beam period, the user equipment measures using the UE beam Ba (a = 0-3) to receive and assume that the transmission beam is a candidate service beam 0-3 (its beam scanning sequence identification code is Seq.IDb (b = 0-3). After matching, the wireless signal quality obtained by the user equipment Therefore, within 4 DL sector sector scanning beam periods (from t = 0 to t = 3), the user equipment obtains 64 possible wireless signal measurement results for the sector sector and stores the measured 64 wireless signal qualities γ a, b (t). Then, the processing unit (not shown) of the user equipment may determine a target value (for example, but not subject to) among the 64 wireless signal qualities γ a, b (t). Limited to the maximum value), and select the beam that has received this target wireless signal quality as the target UE beam (that is, under normal operation, the UE will use this beam to receive wireless signals), and will issue the target wireless signal The hypothetical transmission beam selection of the quality is "UE selection beam" (also referred to as "candidate service beam", that is, the user equipment wants "Candidate serving beam" service). In this assumption, the quality γ a, the maximum value (t) among the 64 radio signal b is γ 2,1 (t) (which corresponds to "t = 1" and "Seq .ID1 "), the user equipment selects the beam B2 that has received the maximum value of the wireless signal quality as the target UE beam. In addition, the user equipment returns a transmission time index corresponding to the maximum value of the wireless signal quality (in this example) , T = 1) and the beam scanning sequence identification code (Seq.ID1 in this example) of the beam selected by the UE is returned to the sector block. In addition, during the return, the user equipment can measure the measured value of the target UE beam All or part of the wireless signal quality is transmitted back to the sector.
第10圖顯示根據本案實施例之進行扇形區塊內波束選擇之示意圖。在用戶設備決定目標UE波束及選擇「UE選擇波束」之後,用戶設備透過「目標UE波束B2」回傳「傳輸時間索引(在此例中,t=1)」、「UE選擇波束的波束掃描序列識別碼(在此例中為Seq.ID1)」,以及/或「目標UE波束所測量到的無線信號品質的全部或者一部份」給服務扇形區塊的服務波束(在此假設扇形區塊S1-1為目前服務扇形區塊,且扇形區塊S1-1的波束B2(波束掃描序列識別碼為Seq.ID2)為目前服務波束)。 FIG. 10 is a schematic diagram showing beam selection in a sector block according to an embodiment of the present invention. After the user equipment decides the target UE beam and selects the "UE selected beam", the user equipment returns the "transmission time index (in this example, t = 1)", "beam scan of the UE selected beam" through the "target UE beam B2" The sequence identifier (Seq.ID1 in this example), and / or "all or part of the radio signal quality measured by the target UE beam" is given to the service beam of the service sector block (here the sector is assumed) The block S1-1 is the current serving sector block, and the beam B2 (the beam scanning sequence identification code is Seq. ID2) of the sector block S1-1 is the current serving beam).
由於用戶設備可能移動或/及旋轉,在本案實施例中,藉由追蹤波束信號,以切換至想所要的服務波束及/或服務扇形區塊。 切換服務波束即為扇形區塊內波束選擇,而切換服務扇形區塊即為扇形區塊間波束選擇。 Since the user equipment may move or / and rotate, in the embodiment of the present invention, the beam signal is tracked to switch to the desired service beam and / or service sector. Switching the service beam is the beam selection within the sector block, and switching the service sector block is the beam selection between the sector blocks.
現將說明本案實施例如何進行扇形區塊內波束選擇。如上述般,假設扇形區塊S1-1為目前服務扇形區塊,且扇形區塊S1-1的波束B2(波束掃描序列識別碼為Seq.ID2)為目前服務波束。在網路裝置RFN1接收到用戶設備所回傳的資訊「傳輸時間索引(在此例中,t=1)」與「UE選擇波束的波束掃描序列識別碼(在此例中為Seq.ID1)」後,網路裝置RFN1將之比對於內部所儲存的波束掃描序列識別碼的映對表(如上表2),假設扇形區塊S1-1應用Configuration 0而扇形區塊 S2-1應用Configuration 7。經查表後,網路裝置RFN1得知,UE回傳的資訊「t=1」與「Seq.ID1」不匹配於目前服務波束(扇形區塊S1-1的波束B2,其對應至「t=2」與「Seq.ID2」)。也就是說,經查表後,網路裝置RFN1判斷出UE回傳的資訊「t=1」與「Seq.ID1」乃是對應至是扇形區塊S1-1的波束B1(這種情況也可稱為,經比對後,回傳資訊不匹配於該服務波束但匹配於該服務扇形區塊)。故而,網路裝置RFN1判斷要進行扇形區塊內波束選擇,並且網路裝置RFN1將目前服務波束由扇形區塊S1-1的B2切換成扇形區塊S1-1的B1。由於扇形區塊內波束選擇/切換無需經過控制裝置,所以可以降低延遲。 How to perform beam selection in a sector block will be described in the embodiment of the present case. As described above, it is assumed that the sector block S1-1 is the current serving sector block, and the beam B2 (the beam scanning sequence identification code is Seq. ID2) of the sector block S1-1 is the current serving beam. The network device RFN1 receives the information "transmission time index (in this example, t = 1)" and the "beam scanning sequence identification code (in this example, Seq.ID1)" selected by the user equipment. After that, the network device RFN1 compares the ratio to the mapping table of the internally stored beam scanning sequence identifier (see Table 2 above), assuming sector sector S1-1 applies Configuration 0 and sector sector S2-1 applies Configuration 7. After checking the table, the network device RFN1 learns that the information "t = 1" and "Seq.ID1" returned by the UE do not match the current serving beam (beam B2 of sector block S1-1, which corresponds to "t = 2 "and" Seq.ID2 "). That is, after checking the table, the network device RFN1 judges that the information "t = 1" and "Seq. ID1" returned by the UE correspond to the beam B1 corresponding to the sector block S1-1 (this case also It can be said that after comparison, the returned information does not match the service beam but matches the service sector block). Therefore, the network device RFN1 determines that the beam selection in the sector block is to be performed, and the network device RFN1 switches the current service beam from B2 of the sector block S1-1 to B1 of the sector block S1-1. Since the beam selection / switching in the sector does not need to go through the control device, the delay can be reduced.
當然,如果經比對後,網路裝置RFN1得知,UE回傳的資訊「t=2」與「Seq.ID2」匹配於目前服務波束(扇形區塊S1-1的波束B2,其對應至「t=2」與「Seq.ID2」),則可以維持目前服務波束(亦即繼續選擇扇形區塊S1-1的波束B2為服務波束)。 Of course, after comparison, the network device RFN1 learns that the information "t = 2" and "Seq.ID2" returned by the UE match the current serving beam (beam B2 in sector S1-1, which corresponds to "T = 2" and "Seq. ID2"), the current serving beam can be maintained (that is, the beam B2 of the sector S1-1 is continuously selected as the serving beam).
現將說明本案實施例如何進行扇形區塊間波束選擇。第11圖顯示根據本案實施例之進行扇形區塊間波束選擇之示意圖。如上述般,假設扇形區塊S1-1為目前服務扇形區塊,且扇形區塊S1-1的波束B2(波束掃描序列識別碼為Seq.ID2)為目前服務波束。經過無線品質計算後,用戶設備將資訊「傳輸時間索引(t=2)」與「UE選擇波束的波束掃描序列識別碼(Seq.ID1)」回傳給目前服務扇形區塊S1-1的目前服務波束B2,以再傳給網路裝置RFN1,如步驟S1110所示。同樣地,經過查表後,網路裝置RFN1判斷需要進行扇形區塊間波束選擇,因為用戶設備所回傳的資訊「傳輸時間索引(t=2)」與「UE選擇波束 的波束掃描序列識別碼(Seq.ID1)」不匹配於目前服務扇形區塊S1-1的目前服務波束B2,相反地,是匹配至另一扇形區塊S2-1(這種情況稱為,該回傳資訊不匹配於該目前服務波束也不匹配於該目前服務扇形區塊)。 How the fan-shaped inter-block beam selection is performed in this embodiment will be described. FIG. 11 shows a schematic diagram of beam selection between sector blocks according to an embodiment of the present invention. As described above, it is assumed that the sector block S1-1 is the current serving sector block, and the beam B2 (the beam scanning sequence identification code is Seq. ID2) of the sector block S1-1 is the current serving beam. After the wireless quality calculation, the user equipment returns the information "transmission time index (t = 2)" and "beam scanning sequence identification code (Seq.ID1) selected by the UE" to the current serving sector block S1-1. The service beam B2 is transmitted to the network device RFN1, as shown in step S1110. Similarly, after looking up the table, the network device RFN1 judges that it is necessary to perform fan-shaped inter-block beam selection because the information transmitted by the user equipment "transmission time index (t = 2)" and "UE selected beam The beam scanning sequence identifier (Seq.ID1) "does not match the current serving beam B2 of the current serving sector S1-1, but instead matches to another sector S2-1 (this situation is called, The return information does not match the current serving beam or the current serving sector).
網路裝置RFN1將用戶設備所回傳的資訊「傳輸時間索引(t=2)」與「UE選擇波束的波束掃描序列識別碼(Seq.ID1)」上傳給控制裝置110,如步驟S1120所示。當控制裝置110檢查由用戶設備所回傳的「傳輸時間索引(t=2)」與「候選服務波束的波束掃描序列識別碼(在此例中為Seq.ID1)」後,控制裝置110將之比對於內部所儲存的波束掃描序列識別碼的映對表(如上表2)(如步驟S1130)。經查表後,控制裝置110得知,UE回傳的資訊「t=2」與「Seq.ID1」並不匹配於目前服務扇形區塊S1-1的目前服務波束B2(對應至「t=2」與「Seq.ID2」)。也就是說,經查表後,控制裝置110判斷出UE回傳的資訊「t=2」與「Seq.ID1」乃是對應至是扇形區塊S2-1的波束B2。故而,控制裝置110告知網路裝置RFN1需要進行扇形區塊間波束選擇(以將服務扇形區塊從S1-1切換至S2-1),如步驟S1140。 The network device RFN1 uploads the information "transmission time index (t = 2)" and "beam scanning sequence identification code (Seq.ID1) of the beam selected by the UE" returned by the user equipment to the control device 110, as shown in step S1120. . After the control device 110 checks the "transmission time index (t = 2)" and "beam scanning sequence identification code of the candidate service beam (Seq. ID1)" returned by the user equipment, the control device 110 will The ratio is a mapping table (as in Table 2 above) for the beam scanning sequence identifier stored in the inside (as in step S1130). After checking the table, the control device 110 learns that the information “t = 2” and “Seq.ID1” returned by the UE do not match the current serving beam B2 (corresponding to “t = 2 "and" Seq. ID2 "). That is, after checking the table, the control device 110 determines that the information “t = 2” and “Seq. ID1” returned by the UE correspond to the beam B2 which is the sector S2-1. Therefore, the control device 110 informs the network device RFN1 that the inter-sector beam selection is required (to switch the service sector from S1-1 to S2-1), as in step S1140.
於步驟S1150中,回應於控制裝置110的要求,網路裝置RFN1將目前尚未傳輸完的資料(亦可稱為待傳輸資料)回傳給控制裝置110。接著,於步驟S1160中,控制裝置110將扇形區塊間波束選擇指令告知網路裝置RFN2,以讓網路裝置RFN2得知,扇形區塊S2-1的波束B2被選擇為服務波束;而且控制裝置110將網路裝置RFN1所傳 來的資料傳給網路裝置RFN2,以透過扇形區塊S2-1的波束B2來傳輸給用戶設備UE。 In step S1150, in response to the request from the control device 110, the network device RFN1 returns the data that has not yet been transmitted (also referred to as data to be transmitted) to the control device 110. Next, in step S1160, the control device 110 notifies the network device RFN2 of the fan-shaped inter-block beam selection instruction so that the network device RFN2 knows that the beam B2 of the fan-shaped block S2-1 is selected as the service beam; Device 110 transmits the network device RFN1 The incoming data is transmitted to the network device RFN2 for transmission to the user equipment UE through the beam B2 of the sector block S2-1.
在本案實施例中,在進行扇形區塊間波束選擇時,由於仍是由同一控制裝置110來進行,所以傳輸延遲可以得到有效控制。 In the embodiment of the present invention, when the sector-to-block beam selection is performed, since the same control device 110 is still performed, the transmission delay can be effectively controlled.
第12圖顯示根據本案一實施例的用戶設備的功能方塊圖。如第12圖所示,根據本案一實施例的用戶設備1200包括:處理單元1210,記憶體1220與天線陣列1230。處理單元1210(例如但不受限於,為微處理器)耦接至記憶體1220與天線陣列1230。處理單元1210可測量所接收的無線信號的品質,並選擇用戶設備目標波束,其細節如上述,於此不重述。記憶體1220可儲存波束掃描序列識別碼映對表,及/或無線信號品質表(如第9圖)。天線陣列1230可形成波束,以無線通訊於無線通訊系統。 FIG. 12 is a functional block diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 12, the user equipment 1200 according to an embodiment of the present case includes a processing unit 1210, a memory 1220, and an antenna array 1230. The processing unit 1210 (such as, but not limited to, a microprocessor) is coupled to the memory 1220 and the antenna array 1230. The processing unit 1210 may measure the quality of the received wireless signal and select a target beam of the user equipment. The details are as described above, and are not repeated here. The memory 1220 may store a beam scanning sequence identification code mapping table and / or a wireless signal quality table (as shown in FIG. 9). The antenna array 1230 can form a beam for wireless communication with a wireless communication system.
第13圖顯示根據本案一實施例的網路裝置(如RFN)的功能方塊圖。如第13圖所示,根據本案實施例的網路裝置1300包括:處理單元1310,記憶體1320與通訊模組1330。處理單元1310(例如但不受限於,為微處理器)耦接至記憶體1320與通訊模組1330。處理單元1310可根據用戶設備的回傳資訊而決定是否要進行「扇形區塊內波束選擇」及/或「扇形區塊間波束選擇」,其細節如上述,於此不重述。 記憶體1320可儲存波束掃描序列識別碼映對表。通訊模組1330可無線通訊於控制裝置(110)。 FIG. 13 shows a functional block diagram of a network device (such as an RFN) according to an embodiment of the present invention. As shown in FIG. 13, the network device 1300 according to the embodiment of the present case includes a processing unit 1310, a memory 1320, and a communication module 1330. The processing unit 1310 (such as, but not limited to, a microprocessor) is coupled to the memory 1320 and the communication module 1330. The processing unit 1310 may decide whether to perform "intra-sector block beam selection" and / or "inter-sector block beam selection" according to the return information of the user equipment. The details are as described above, and are not repeated here. The memory 1320 may store a beam scanning sequence identification code mapping table. The communication module 1330 can wirelessly communicate with the control device (110).
第14圖顯示根據本案一實施例的用戶設備的操作示意圖。如第14圖所示,於步驟1410中,該天線陣列接收複數個波束所傳 來的複數個無線信號。於步驟1420中,該處理單元測量該些無線信號的複數個無線信號品質。於步驟1430中,該處理單元找出該些無線信號品質之一目標無線信號品質(e.g.最大值)。於步驟1440中,該處理單元選擇該些扇形區塊中之發出該目標無線信號品質的一波束為一候選服務波束。於步驟1450中,該處理單元控制該天線陣列回傳對應到該目標無線信號品質的一傳輸時間索引與一波束掃描序列識別碼給該些波束中之一目前服務波束。 FIG. 14 is a schematic diagram illustrating an operation of a user equipment according to an embodiment of the present invention. As shown in FIG. 14, in step 1410, the antenna array receives a plurality of beams. A plurality of wireless signals. In step 1420, the processing unit measures the quality of the plurality of wireless signals of the wireless signals. In step 1430, the processing unit finds a target wireless signal quality (e.g. maximum value), which is one of the wireless signal qualities. In step 1440, the processing unit selects a beam in the sector blocks that emits the target wireless signal quality as a candidate service beam. In step 1450, the processing unit controls the antenna array to return a transmission time index and a beam scanning sequence identification code corresponding to the target wireless signal quality to one of the current serving beams of the beams.
第15圖顯示根據本案一實施例的網路裝置(如RFN)的操作示意圖。如第15圖所示,於步驟1510中,根據從該些波束中之一服務波束所接收到的由該用戶設備所回傳的一傳輸時間索引與一波束掃描序列識別碼,該處理單元決定是否該用戶設備所回傳的該傳輸時間索引與該波束掃描序列識別碼匹配於該服務波束;以及於步驟1520中,當該處理單元決定該用戶設備所回傳的該傳輸時間索引與該波束掃描序列識別碼不匹配於該服務波束,該處理單元根據該用戶設備所回傳的該傳輸時間索引與該波束掃描序列識別碼決定是否要進行扇形區塊內波束選擇,或者進行扇形區塊間波束選擇。 FIG. 15 shows an operation diagram of a network device (such as an RFN) according to an embodiment of the present invention. As shown in FIG. 15, in step 1510, the processing unit determines, according to a transmission time index and a beam scanning sequence identification code returned by the user equipment, received from one of the serving beams of the beams. Whether the transmission time index returned by the user equipment and the beam scanning sequence identifier match the serving beam; and in step 1520, when the processing unit determines the transmission time index and the beam returned by the user equipment The scanning sequence identification code does not match the service beam, and the processing unit determines whether to perform beam selection within the sector block or perform inter-sector block based on the transmission time index returned by the user equipment and the beam scanning sequence identification code. Beam selection.
如上所述,在本案實施例中,於進行扇形區塊內波束選擇時,由於無需上層控制裝置的控制,傳輸延遲較為減少。 As described above, in the embodiment of the present invention, when the beam selection in the sector block is performed, since the control of the upper-layer control device is not required, the transmission delay is relatively reduced.
此外,在進行扇形區塊內/扇形區塊間波束選擇時,在本案實施例中,由用戶設備進行無線信號品質的測量並回傳。如此一來,網路裝置可以無需量測波束所發出的無線信號品質,使得網路裝 置可以更快地判斷哪個波束的無線信號品質是所想要的,有助於扇形區塊內/扇形區塊間波束選擇的切換速度。 In addition, when performing intra-sector / inter-sector beam selection, in this embodiment of the present invention, the user equipment performs wireless signal quality measurement and returns. In this way, the network device can eliminate the need to measure the quality of the wireless signal emitted by the beam, making the network device This setting can more quickly determine which beam's wireless signal quality is desired, which is helpful for the switching speed of beam selection within / between sectors.
綜上所述,本案實施例具有:降低運算複雜度 (computational complexity),縮短信號測量時間,以及較低的信令開銷(overhead)的好處。 In summary, the embodiment of the present case has the following features: reducing computational complexity (computational complexity), shorten the signal measurement time, and the benefits of lower signaling overhead (overhead).
綜上所述,雖然本發明已以實施例揭露如上,然其並非用以限定本發明。本發明所屬技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作各種之更動與潤飾。因此,本發明之保護範圍當視後附之申請專利範圍所界定者為準。 In summary, although the present invention has been disclosed as above with the embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the attached patent application.
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