Method, apparatus and system for managing radio resources
By allocating and scheduling available resources for RRUs in 5G indoor distribution systems, the problems of high downlink signal transmission energy consumption and increased noise floor are solved, achieving energy-saving and noise-reducing communication quality improvement.
Patent Information
- Application Number
- CN202110896885.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-08-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2041-08-05
AI Technical Summary
In existing technologies, downlink signal transmission in 5G indoor distribution systems consumes a lot of energy, which leads to a decrease in communication quality and an increase in background noise.
Available resources are allocated to multiple RRUs with the same cell identifier, and the available resources of each UE-associated RRU are scheduled according to the association between the RRU and the UE for transmitting the corresponding information. Punching is used to ensure that each RRU only sends information on its available resources.
This reduces the power consumption of the RRU, avoids raising the noise floor, and improves communication quality.
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Figure CN115884411B_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of communication technology, and in particular to a method for managing wireless resources, a device for managing wireless resources, a system for managing wireless resources, and a non-volatile computer-readable storage medium. Background Technology
[0002] The mainstream 5G BBU (Baseband Unit) of indoor distribution systems needs to support four 2T2R cells (2 Transmit 2 Receive cells) or two 4T4R cells (4 Output 4 Input). Each HUB (Remote Aggregation Unit) can currently support a maximum of eight RRUs (Remote Radio Units).
[0003] For example, one BBU connects to four HUBs (remote aggregation units), each HUB connects to eight RRUs, and the eight RRUs of each HUB share the same cell ID.
[0004] In related technologies, the HUB of the indoor distribution system of the extended small cell solution can connect to 8 RRUs to broadcast downlink signals simultaneously, and directly merge multiple RRU signals uplink and transmit them back to the BBU. Summary of the Invention
[0005] The inventors of this disclosure have discovered the following problems in the above-mentioned related technologies: the downlink signal transmission consumes a lot of power, and the downlink signal transmission has the technical problem of increased noise floor, which leads to a decrease in communication quality.
[0006] In view of this, this disclosure proposes a wireless resource management technology solution that can reduce energy consumption, avoid noise floor increase, and thus improve communication quality.
[0007] According to some embodiments of this disclosure, a method is provided, comprising: allocating available resources to multiple RRUs having the same cell identifier; scheduling the available resources of the RRUs associated with each UE for transmitting corresponding information of each UE according to the association relationship between each RRU and each UE; and sending the scheduling result to each RRU so that each RRU transmits the corresponding information on the available resources according to the indication of the scheduling result.
[0008] In some embodiments, allocating available resources to multiple RRUs with the same cell identifier includes: allocating exclusive available resources to each of the multiple RRUs; and allocating shared available resources to a number of the multiple RRUs.
[0009] In some embodiments, according to the association between each RRU and each user equipment (UE), scheduling the available resources of the RRU associated with each UE for transmitting the corresponding information of each UE includes: scheduling the available resources of each RRU for transmitting data channels, control channels, broadcast channels, random access channels, and reference signals of each UE according to the service load.
[0010] In some embodiments, scheduling the available resources of each RRU for the transmission of data channels, control channels, broadcast channels, random access channels, and reference signals for each UE, based on the service load, includes: scheduling the available resources of each RRU and performing signaling configuration for at least one of the channels, reference signals, and measurement reporting for each UE.
[0011] In some embodiments, the association is acquired through initial random access configuration, by the RRU punching the SSB (Synchronization Signal / Physical Broadcast Channel Block), or by the RRU measuring the SRS (Sounding Reference Signal).
[0012] In some embodiments, the scheduling result is used to instruct each RRU to perform time-frequency resource punching according to the scheduling result, so as to ensure that each RRU only sends the corresponding information on its available resources.
[0013] According to some other embodiments of this disclosure, a radio resource management apparatus is provided, comprising: an allocation unit for allocating available resources to multiple RRUs having the same cell identifier; a scheduling unit for scheduling the available resources of RRUs associated with each UE according to the association relationship between each RRU and each UE, for transmitting corresponding information of each UE; and a sending unit for sending the scheduling result to each RRU, so that each RRU transmits corresponding information on the available resources according to the indication of the scheduling result.
[0014] In some embodiments, the allocation unit allocates exclusive available resources to each of the plurality of RRUs, and allocates shared available resources to several of the plurality of RRUs.
[0015] In some embodiments, the scheduling unit schedules the available resources of each RRU according to the service load, for the transmission of data channels, control channels, broadcast channels, random access channels, and reference signals of each UE.
[0016] In some embodiments, the scheduling unit schedules the available resources of each RRU and performs signaling configuration for at least one of the channels, reference signals, and measurement reporting for each UE.
[0017] In some embodiments, the association is acquired through initial random access configuration, RRU punching SSB, or RRU measuring SRS.
[0018] In some embodiments, the scheduling result is used to instruct each RRU to perform time-frequency resource punching according to the scheduling result, so as to ensure that each RRU only sends the corresponding information on its available resources.
[0019] According to further embodiments of this disclosure, a wireless resource management system is provided, comprising: a management device for executing the management method in any of the above embodiments; and a plurality of RRUs for transmitting corresponding information on available resources according to the scheduling result of the management device.
[0020] According to further embodiments of the present disclosure, a wireless resource management apparatus is provided, comprising: a memory; and a processor coupled to the memory, the processor being configured to execute the wireless resource management method of any of the above embodiments based on instructions stored in the memory device.
[0021] According to further embodiments of the present disclosure, a non-volatile computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the wireless resource management method of any of the above embodiments.
[0022] In the above embodiments, the available resources of the RRU are scheduled to transmit uplink and downlink signals according to the association between the RRU and the UE. In this way, each RRU only transmits uplink and downlink signals on its own available resources, reducing power consumption, avoiding noise floor increase, and thus improving communication quality. Attached Figure Description
[0023] The accompanying drawings, which form part of this specification, illustrate embodiments of this disclosure and, together with the specification, serve to explain the principles of this disclosure.
[0024] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description:
[0025] Figure 1 Flowcharts illustrating some embodiments of the wireless resource management method of this disclosure;
[0026] Figure 2 Schematic diagrams showing some embodiments of a three-tier architecture for a 5G indoor extended small cell;
[0027] Figure 3a Block diagrams illustrating some embodiments of the wireless resource management method of this disclosure;
[0028] Figure 3b Schematic diagrams illustrating some embodiments of the wireless resource management method of this disclosure;
[0029] Figure 4 Block diagrams illustrating some embodiments of the wireless resource management apparatus of this disclosure;
[0030] Figure 5 Block diagrams illustrating other embodiments of the wireless resource management apparatus of this disclosure;
[0031] Figure 6 Block diagrams illustrating further embodiments of the wireless resource management apparatus of this disclosure;
[0032] Figure 7 Block diagrams illustrating some embodiments of the wireless resource management system of this disclosure are shown. Detailed Implementation
[0033] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present disclosure.
[0034] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.
[0035] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use.
[0036] Techniques, methods, and equipment known to a person skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the license specification.
[0037] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.
[0038] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.
[0039] As mentioned earlier, based on the ORAN (Open Radio Access Network) standard, the fronthaul interface allocation method between BBU (Block BU), DU (Distributed Unit), and RRU can refer to Option 6, but the cost is high; Option 7-2 and Option 8 (maximum fronthaul bandwidth) can be considered, but there will be an uplink noise floor increase problem.
[0040] For example, the functional division and noise floor increase analysis of Option 6, Option 7-2, and Option 8 are shown in the table below:
[0041] Table 1
[0042]
[0043] In Table 1, IF stands for Intermediate Frequency, PHY for Physical Layer, UL for Uplink, and DL for Downlink. High-PHY and Low-PHY are further subdivisions of the L1 PHY layer in 5G systems. High-PHY refers to software entities in L1 that are not directly and strongly correlated with the DSP (Digital Signal Processor), while Low-PHY refers to software entities that are strongly correlated with the DSP. RLC stands for RadioLink Control. PDCP stands for Packet Data Convergence Protocol. Core Network refers to the core network; Optical Multiplexer is an optical multiplexer; and FHGW stands for fronthaul Gateway.
[0044] To avoid excessive uplink noise floor increase, the number of RRUs connected to the HUB (using the same cell ID) should be small.
[0045] However, due to the limited fronthaul interface bandwidth of indoor distribution systems (e.g., 10G), the number of cells that can be supported simultaneously within a BBU is typically four (option 6 may support more, but at a higher cost). Therefore, the procurement cost of future 5G indoor distribution systems for operators will be directly related to the number of cells. To reduce indoor coverage costs, the number of RRUs connected to the HUB (using the same cell ID) should be as large as possible, as different RRUs may be distributed across different indoor spaces, floors, etc.
[0046] For BBU, it is currently impossible to associate the UE with the RRU that receives the UE's uplink useful signal. Downlink requires all RRUs to broadcast the same information, which consumes a lot of energy. Uplink, merging multiple RRU signals will lead to increased noise floor and a more complex interference environment.
[0047] For new indoor coverage of 5G in non-hotspot areas or to fill blind spots, there is a need to provide a low-cost indoor coverage solution using 5G NR (New Radio) extended small base stations.
[0048] Therefore, it is necessary to improve the 5G fronthaul solution that has been widely tested and verified in the industry, specifically option 7-2, and design a method for low-cost indoor coverage radio resource management suitable for 5G NR extended small base stations.
[0049] To address the aforementioned technical issues, this disclosure optimizes RRU-based radio resource management and scheduling based on the association list between RRU and UE, thereby saving RRU energy consumption and reducing costs; it also supports a larger number of RRUs belonging to the same cell ID connected on the HUB, while reducing excessive uplink noise floor and interference rise.
[0050] For example, the technical solution of this disclosure can be implemented through the following embodiments.
[0051] Figure 1 Flowcharts illustrating some embodiments of the wireless resource management method of this disclosure are shown.
[0052] like Figure 1 As shown, in step 110, available resources are allocated to multiple RRUs with the same cell identifier.
[0053] In some embodiments, exclusive available resources are allocated to each of the plurality of RRUs; shared available resources are allocated to a number of the plurality of RRUs.
[0054] In some embodiments, the base station or OAM (Operation Administration and Maintenance) statically or semi-statically configures the time-domain and frequency-domain resources for uplink and downlink transmission for each RRU belonging to the current base station and using the same cell ID, and multiple RRUs (which may be multiple RRUs belonging to the current base station and using the same cell ID) share the uplink and downlink time-domain and frequency-domain resources for transmission.
[0055] For example, resource reuse methods among different RRUs include time division, frequency division, time division plus frequency division, and sharing.
[0056] For example, a portion of the time-frequency resources is used for multicast broadcasting higher-layer signaling. Each RRU is configured with different amounts of time-frequency resources for data channels and UE-specific control channel transmissions, depending on the service load.
[0057] In some embodiments, the base station or OAM obtains the association list of RRU and UE, and allocates RRU-specific (exclusive) time and frequency resources and time and frequency resources shared by multiple RRUs to the RRU.
[0058] For example, the base station or OAM configures the RRU based on the initial random access configuration, and obtains the association list between the RRU and the UE through methods such as RRU punching SSB or RRU measuring SRS.
[0059] In some embodiments, the association list between RRU and UE can be obtained as follows: Based on the random access configuration results, a first association relationship is established between each SSB and each RRU, so that each RRU sends downlink information according to the first association relationship; based on the SSB selected by each UE after detecting downlink information, and the first association relationship, a second association relationship is established between each UE and each RRU as an association list. Furthermore, the available resources of each RRU can be managed and scheduled according to the second association relationship.
[0060] In some embodiments, based on a first association, relevant information about the available resources of each RRU is determined; the relevant information about each available resource is sent to each RRU so that each RRU can send downlink information on its respective available resources.
[0061] In some embodiments, the information related to the available resources of each RRU includes a time-frequency location map of SSBs that have a first association with each RRU. The time-frequency location map is used to instruct each RRU to perform punching on the time-frequency resources of SSBs that do not have a first association, so as to determine their respective available resources.
[0062] In some embodiments, random access in broadcast messages is configured before the first association is established, such that a random access event can map multiple SSBs.
[0063] In some embodiments, the SSB selected by each UE is determined based on the random access preamble sequence selected by each UE.
[0064] In some embodiments, relevant information about each available resource is sent to each RRU via at least one of the fronthaul interface protocol and the operator's private network management protocol.
[0065] In some embodiments, the second association is identified and updated according to the SRS (Sounding Reference Signal) configuration.
[0066] For example, the method for obtaining association relationships between radio frequency remote units via SRS is as follows: the configuration information of the user terminal-specific probe reference signal used for updating the association relationship between radio frequency remote units and user terminals is informed to the remote aggregation unit; the probe reference signal related information sent by the remote aggregation unit is received; channel estimation is performed based on the probe reference signal received by each radio frequency remote unit; the base station or network management system updates the association list between radio frequency remote units and user terminals based on the channel estimation results, the time-frequency position of the probe reference signal, and the port number of the radio frequency remote unit.
[0067] For example, when a UE is associated with multiple RRUs, the time and frequency resources that the UE can use are the sum of the time and frequency resources of the multiple RRUs.
[0068] In some embodiments, the base station or OAM configures the time-domain and frequency-domain resources for the current RRU to perform uplink and downlink transmissions through network management protocols or fronthaul interface control plane or management plane protocols.
[0069] In step 120, based on the association relationship between each RRU and each UE, the available resources of the RRU associated with each UE are scheduled to transmit the corresponding information of each UE. For example, the association relationship is obtained through initial random access configuration, RRU punching SSB, or RRU measuring SRS.
[0070] In some embodiments, the available resources of each RRU are scheduled according to the service load for the transmission of data channels, control channels, broadcast channels, random access channels, and reference signals for each UE.
[0071] For example, schedule the available resources of each RRU and perform signaling configuration for at least one of the channels, reference signals, and measurement reporting for each UE.
[0072] For example, when the base station performs radio resource management, it schedules according to the association between the UE and RRU, allocates data channels to the UE, and performs signaling configuration such as channels, reference signals, and measurement reporting.
[0073] In step 130, the scheduling results are sent to each RRU so that each RRU can transmit the corresponding information on the available resources according to the instructions of the scheduling results.
[0074] In some embodiments, the scheduling result is used to instruct each RRU to perform time-frequency resource punching according to the scheduling result, so as to ensure that each RRU only sends the corresponding information on its available resources.
[0075] In some embodiments, after receiving the signal from the BBU or DU after performing RE-mapping (Resource Element-mapping), the downlink RRU performs downlink time-frequency resource puncturing according to the current RRU time-frequency resource configuration. This retains only the currently useful RRU signal, and then performs subsequent iFFT (Inverse Fast Fourier Transform) and other processes before transmitting the signal.
[0076] For example, if the RRU has no useful resources in the current slot or symbol, it will not send downlink signals to save energy.
[0077] In some embodiments, the uplink RRU receives user information, performs an FFT (Fast Fourier Transform), and configures uplink time-frequency resource puncturing based on the current RRU time-frequency resources. This retains only the useful signal from the current RRU, removing time-frequency resources not belonging to that RRU before sending it to the BBU or DU. This reduces interference and noise floor increase from each RRU to the useful signals on other RRUs.
[0078] Figure 2 The diagram illustrates some embodiments of a three-tiered structure for a 5G indoor extended cell.
[0079] like Figure 2 As shown, the mainstream 5G BBU for indoor distribution systems needs to support four 2T2R cells or two 4T4R cells. Each HUB can currently support a maximum of eight RRU connections.
[0080] For example, one BBU connects to four HUBs, each HUB connects to eight RRUs, and the eight RRUs of each HUB have the same cell ID.
[0081] Figure 3a Block diagrams illustrating some embodiments of the wireless resource management method of this disclosure are shown.
[0082] like Figure 3a As shown, in some embodiments, the base station or OAM (Operation Administration and Maintenance) is each RRU belonging to the current base station and using the same cell ID. The time-domain and frequency-domain resources for uplink and downlink transmission are statically or semi-statically configured, and multiple RRUs (which may be multiple RRUs belonging to the current base station and using the same cell ID) share the uplink and downlink time-domain and frequency-domain resources for transmission.
[0083] For example, resource reuse methods among different RRUs include time division, frequency division, time division plus frequency division, and sharing.
[0084] For example, a portion of the time-frequency resources is used for multicast broadcasting higher-layer signaling. Each RRU is configured with different amounts of time-frequency resources for data channels and UE-specific control channel transmissions, depending on the service load.
[0085] In some embodiments, the base station or OAM obtains the association list between RRUs and UEs, and allocates RRU-specific (exclusive) time-frequency resources and time-frequency resources shared by multiple RRUs to the RRUs. For example, when the base station performs radio resource management, it schedules according to the association relationship between the UE and the RRU, allocates data channels to the UE, and performs signaling configuration such as channels, reference signals, and measurement reporting.
[0086] For example, the base station or OAM configures the RRU based on the initial random access configuration, and obtains the association list between the RRU and the UE through methods such as RRU punching SSB or RRU measuring SRS.
[0087] For example, when a UE is associated with multiple RRUs, the time and frequency resources that the UE can use are the sum of the time and frequency resources of the multiple RRUs.
[0088] In some embodiments, the base station or OAM configures the time-domain and frequency-domain resources for the current RRU to perform uplink and downlink transmissions through network management protocols or fronthaul interface control plane or management plane protocols.
[0089] In some embodiments, after receiving the signal from the BBU or DU after performing RE-mapping (Resource Element-mapping), the downlink RRU performs downlink time-frequency resource puncturing according to the current RRU time-frequency resource configuration. This retains only the currently useful RRU signal, and then performs subsequent iFFT (Inverse Fast Fourier Transform) and other processes before transmitting the signal.
[0090] For example, if the RRU has no useful resources in the current slot or symbol, it will not send downlink signals to save energy.
[0091] In some embodiments, the uplink RRU receives user information, performs an FFT (Fast Fourier Transform), and configures uplink time-frequency resource puncturing based on the current RRU time-frequency resources. This retains only the useful signal from the current RRU, removing time-frequency resources not belonging to that RRU before sending it to the BBU or DU. This reduces interference and noise floor increase from each RRU to the useful signals on other RRUs.
[0092] Figure 3b Schematic diagrams illustrating some embodiments of the wireless resource management method of this disclosure.
[0093] like Figure 3b As shown, RRU0 and RRU1 are deployed in different rooms from RRU2 and RRU3. RRU0 is associated with UE0, and RRU2 is associated with UE1.
[0094] The resource scheduling of UE0 and UE1 on the BBU side is shown in the figure (f represents frequency resources, and t represents time-domain resources). Based on the association between RRU0 and UE0, puncturing is performed on the available resources of RRU0, specifically the portion of the resources not occupied by UE0, so that only UE0's signal is transmitted, without transmitting noise floor and neighboring cell interference. Similarly, based on the association between RRU2 and UE1, puncturing is performed on the available resources of RRU2, so that only UE1's signal is transmitted, without transmitting noise floor and neighboring cell interference.
[0095] Thus, the result of merging at the HUB shows that the technical solution disclosed in this paper only transmits the signals of UE0 and UE1, without transmitting background noise interference.
[0096] Figure 4 Block diagrams illustrating some embodiments of the wireless resource management apparatus of this disclosure are shown.
[0097] like Figure 4 As shown, the wireless resource management device 4 includes an allocation unit 41, a scheduling unit 42, and a transmission unit 43.
[0098] Allocation unit 41 allocates available resources to multiple RRUs with the same cell identifier.
[0099] The scheduling unit 42 schedules the available resources of the RRU associated with each UE according to the association relationship between each RRU and each UE, for transmitting the corresponding information of each UE.
[0100] The sending unit 43 sends the scheduling result to each RRU so that each RRU can transmit the corresponding information on the available resources according to the instructions of the scheduling result.
[0101] In some embodiments, the allocation unit 41 allocates exclusive available resources to each of the plurality of RRUs and allocates shared available resources to a number of the plurality of RRUs.
[0102] In some embodiments, the scheduling unit 41 schedules the available resources of each RRU according to the service load, for the transmission of data channels, control channels, broadcast channels, random access channels and reference signals of each UE.
[0103] In some embodiments, the scheduling unit 41 schedules the available resources of each RRU and performs signaling configuration for at least one of the channels, reference signals, and measurement reporting of each UE.
[0104] In some embodiments, the association is acquired through initial random access configuration, RRU punching SSB, or RRU measuring SRS.
[0105] In some embodiments, the scheduling result is used to instruct each RRU to perform time-frequency resource punching according to the scheduling result, so as to ensure that each RRU only sends the corresponding information on its available resources.
[0106] Figure 5 Block diagrams illustrating other embodiments of the wireless resource management apparatus of this disclosure are shown.
[0107] like Figure 5As shown, the wireless resource management device 5 of this embodiment includes a memory 51 and a processor 52 coupled to the memory 51. The processor 52 is configured to execute the wireless resource management method of any embodiment of this disclosure based on instructions stored in the memory 51.
[0108] The memory 51 may include, for example, system memory, fixed non-volatile storage media, etc. The system memory stores, for example, the operating system, application programs, a boot loader, a database, and other programs.
[0109] Figure 6 Block diagrams illustrating further embodiments of the wireless resource management apparatus of this disclosure are shown.
[0110] like Figure 6 As shown, the wireless resource management device 6 of this embodiment includes a memory 610 and a processor 620 coupled to the memory 610. The processor 620 is configured to execute the wireless resource management method of any of the foregoing embodiments based on instructions stored in the memory 610.
[0111] The memory 610 may include, for example, system memory, fixed non-volatile storage media, etc. The system memory stores, for example, the operating system, application programs, a boot loader, and other programs.
[0112] The wireless resource management device 6 may also include an input / output interface 630, a network interface 640, and a storage interface 650. These interfaces 630, 640, and 650, as well as the memory 610 and processor 620, can be connected, for example, via a bus 860. The input / output interface 630 provides a connection interface for input / output devices such as monitors, mice, keyboards, touchscreens, microphones, and speakers. The network interface 640 provides a connection interface for various networked devices. The storage interface 650 provides a connection interface for external storage devices such as SD cards and USB flash drives.
[0113] Figure 7 Block diagrams illustrating some embodiments of the wireless resource management system of this disclosure are shown.
[0114] like Figure 7 As shown, the wireless resource management system 7 includes: a management device 71 for executing the management method in any of the above embodiments; and a plurality of RRUs 72 for transmitting corresponding information on available resources according to the scheduling result of the management device.
[0115] Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, systems, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable non-transitory storage media containing computer-usable program code, including but not limited to disk storage, CD-ROM, optical storage, etc.
[0116] The method, apparatus, and system for managing wireless resources according to this disclosure have been described in detail above, along with a non-volatile computer-readable storage medium. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art will fully understand how to implement the technical solutions disclosed herein based on the above description.
[0117] The methods and systems of this disclosure may be implemented in many ways. For example, they may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order of steps for the methods is for illustrative purposes only, and the steps of the methods of this disclosure are not limited to the order specifically described above unless otherwise specifically stated. Furthermore, in some embodiments, this disclosure may also be implemented as a program recorded on a recording medium, the program including machine-readable instructions for implementing the methods according to this disclosure. Thus, this disclosure also covers recording media storing programs for performing the methods according to this disclosure.
[0118] While specific embodiments of this disclosure have been described in detail by way of example, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.
Claims
1. A method for managing wireless resources, comprising: Allocate available resources to multiple Radio Remote Units (RRUs) with the same cell identifier; Based on the association between each RRU and each UE, the available resources of the RRU associated with each UE are scheduled to transmit the corresponding information of each UE; The scheduling results are sent to each RRU so that each RRU can transmit the corresponding information on available resources according to the instructions of the scheduling results. The allocation of available resources to multiple remote radio units (RRUs) with the same cell identifier includes: Based on the configuration results of random access, establish the first association relationship between each synchronization signal physical broadcast channel block (SSB) and each RRU; Based on the first association, determine the relevant information of the available resources for each RRU; The relevant information of each available resource is sent to each RRU so that each RRU can send downlink information on its own available resources. The relevant information of each RRU's available resources includes the time-frequency location map of SSBs that have a first association with each RRU. The time-frequency location map is used to instruct each RRU to perform puncturing processing on the time-frequency resources of SSBs that do not have a first association to determine their own available resources.
2. The management method according to claim 1, wherein, The allocation of available resources for multiple remote radio units (RRUs) with the same cell identifier includes: Allocate dedicated available resources to each of the multiple RRUs; Allocate shared available resources to several of the multiple RRUs.
3. The management method according to claim 1, wherein, The step of scheduling available resources of the RRU associated with each UE based on the association relationship between each RRU and each UE, for transmitting the corresponding information of each UE, includes: Based on the service load, the available resources of each RRU are scheduled for the transmission of data channels, control channels, broadcast channels, random access channels, and reference signals of each UE.
4. The management method according to claim 3, wherein, The step of allocating available resources of each RRU according to the service load for the transmission of data channels, control channels, broadcast channels, random access channels, and reference signals of each UE includes: Schedule the available resources of each RRU and perform signaling configuration for at least one of the channels, reference signals, and measurement reporting of each UE.
5. The management method according to claim 1, wherein, The association is obtained through initial random access configuration, where the RRU punches the physical broadcast channel block (SSB) of the synchronization signal, or the RRU measures the sounding reference signal (SRS).
6. The management method according to any one of claims 1-5, wherein, The scheduling result is used to instruct each RRU to perform time-frequency resource puncturing processing according to the scheduling result, so as to ensure that each RRU only sends the corresponding information on its available resources.
7. A wireless resource management device, comprising: The allocation unit is used to allocate available resources to multiple remote radio units (RRUs) with the same cell identifier. The scheduling unit is used to schedule the available resources of the RRU associated with each UE according to the association relationship between each RRU and each UE, for transmitting the corresponding information of each UE; A sending unit is configured to send the scheduling result to each RRU, so that each RRU can transmit the corresponding information on available resources according to the indication of the scheduling result. The allocation unit is used for: Based on the configuration results of random access, establish the first association relationship between each synchronization signal physical broadcast channel block (SSB) and each RRU; Based on the first association, determine the relevant information of the available resources for each RRU; The relevant information of each available resource is sent to each RRU so that each RRU can send downlink information on its own available resources. The relevant information of each RRU's available resources includes the time-frequency location map of SSBs that have a first association with each RRU. The time-frequency location map is used to instruct each RRU to perform puncturing processing on the time-frequency resources of SSBs that do not have a first association to determine their own available resources.
8. The management device according to claim 7, wherein, The allocation unit allocates exclusive available resources to each of the multiple RRUs and allocates shared available resources to some of the multiple RRUs.
9. The management device according to claim 7, wherein, The scheduling unit allocates the available resources of each RRU according to the service load, for the transmission of data channels, control channels, broadcast channels, random access channels, and reference signals of each UE.
10. The management device according to claim 9, wherein, The scheduling unit schedules the available resources of each RRU and performs signaling configuration for at least one of the channels, reference signals, and measurement reporting of each UE.
11. The management device according to claim 7, wherein, The association is obtained through initial random access configuration, where the RRU punches the physical broadcast channel block (SSB) of the synchronization signal, or the RRU measures the sounding reference signal (SRS).
12. The management device according to any one of claims 7-11, wherein, The scheduling result is used to instruct each RRU to perform time-frequency resource puncturing processing according to the scheduling result, so as to ensure that each RRU only sends the corresponding information on its available resources.
13. A wireless resource management system, comprising: Management device for performing the management method according to any one of claims 1-6; Multiple radio frequency remote units (RRUs) are used to transmit corresponding information on available resources according to the scheduling results of the management device.
14. A wireless resource management device, comprising: Memory; and A processor coupled to the memory, the processor being configured to execute the wireless resource management method of any one of claims 1-6 based on instructions stored in the memory.
15. A non-volatile computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method for managing wireless resources according to any one of claims 1-6.
Citation Information
Patent Citations
Data transmission method and system
CN107172635A