WO2017101010A1

WO2017101010A1 - Information source determination method, and resource allocation method and apparatus

Info

Publication number: WO2017101010A1
Application number: PCT/CN2015/097410
Authority: WO
Inventors: 彭劲东
Original assignee: 华为技术有限公司
Priority date: 2015-12-15
Filing date: 2015-12-15
Publication date: 2017-06-22
Also published as: CN108370558B; CN108370558A

Abstract

Disclosed are an information source determination method, and a resource allocation method and apparatus, relating to the field of communications. The method is applied to a base station, the base station comprising at least two remote radio units (RRUs). The method comprises: receiving, on a time slot n by means of the RRUs, indication information sent by a user equipment (UE) on a code channel m, wherein the indication information is at least one piece of scheduling request indication (SRI) information and channel quality indication (CQI) information; when the code channel m and the time slot n are allocated to at least two UEs and the at least two UEs correspond to different RRUs, determining the RRU which receives the indication information; and determining, according to the determined RRU, the UE, which sends the indication information from the at least two UEs, thereby solving the problem of PUCCH resource shortage with the increase of UEs accessing a base station, and achieving the effect that when the base station allocates the same resource to at least two UEs, the UE sending indication information can still be determined, so that the PUCCH resources can be reused.

Description

Information source determining method, resource allocation method and device

Technical field

The present invention relates to the field of communications, and in particular, to an information source determining method, a resource allocating method, and a device.

Background technique

The PUCCH resource transmitted on the physical uplink control channel (English: Physical Uplink Control Channel; PUCCH) includes at least a scheduling request indication (English: Schduling Request Indication; SRI) Resource and Channel Quality Indication (CQI) resources, and SRI resources are used to transmit SRI information, and CQI resources are used to transmit CQI information.

When the user equipment (English: User Equipment; UE) accesses the base station, the base station allocates different SRI resources and CQI resources to different UEs. At this time, the base station may use the SRI resources or CQI resources that receive the information. Determine which UE the information source is.

Taking SRI resources as an example, assume that the SRI resources allocated by the base station to UE1 are SRI code channel 1 and time slot 1, and the SRI resources allocated to UE2 are SRI code channel 2 and time slot 1, when the base station receives the SRI on time slot 1. When the SRI information transmitted on the code channel 1 is determined, the information source that transmits the SRI information is determined to be the UE1.

Since different SRI resources and CQI resources need to be allocated to different UEs, as the number of UEs increases, the SRI resources and CQI resources allocated by the base station also increase, and the total available resources are limited, which may result in The problem of shortage of resources.

Summary of the invention

In order to solve the problem of resource shortage caused by different SRI resources and CQI resources allocated to different UEs when the base station allocates SRI resources and CQI resources to the UE, the embodiment of the present invention provides an information source determining method and resource allocation. Method and device. The technical solution is as follows:

In a first aspect, an information source determining method is provided, the method being executable by a base station, the base station comprising a processor and at least two RRUs, the method comprising:

The base station receives the indication information that the UE sends on the code channel m on the time slot n through the RRU; when the code channel m and the time slot n are allocated to at least two UEs, and the at least two UEs correspond to different RRUs, The base station determines which RRU receives the indication information; then, the base station determines, from the at least two UEs, which UE sends the indication information according to the determined RRU. The indication information is at least one of SRI information and CQI information, and n and m are positive integers.

In the embodiment of the present invention, when the same code channel and the same time slot are allocated to at least two UEs, and the at least two UEs correspond to different RRUs, by determining the RRU that receives the indication information, the determined RRU may be Determining a UE that sends the indication information from the at least two UEs; resolving the UE that needs to determine the transmission indication information according to the resource, therefore, different UEs need to be allocated different resources, so that the number of UEs accessing the base station increases. The problem that the PUCCH resource is in short supply; when the base station allocates the same resource to the at least two UEs, it is still possible to determine the UE that sends the indication information, so that the PUCCH resource can be multiplexed.

In a first possible implementation manner of the first aspect, the base station further includes a BBU. In this case, determining the RRU that receives the indication information includes: receiving, by the base station, the indication information of the RRU forwarding by using the baseband board in the BBU; and the base station according to the baseband The board determines the RRU that receives the indication information.

With reference to the first possible implementation manner of the first aspect, this embodiment provides two implementation manners for determining an RRU for receiving indication information according to a baseband board. The following two implementation manners are respectively introduced.

In a second possible implementation manner of the first aspect, determining, by the baseband board, the RRU that receives the indication information, when the baseband board corresponds to one RRU, the base station directly determines the RRU corresponding to the baseband board to receive the indication information. RRU.

In the embodiment of the present invention, when the baseband board corresponds to one RRU, the RRU that receives the indication information is determined according to the baseband board, so that the base station can allocate the same resource to the UE that sends the indication information to the RRU corresponding to the different baseband boards. When the base station allocates the same resource to the at least two UEs, the UE transmitting the indication information may still be determined, thereby multiplexing the PUCCH resources.

In a third possible implementation manner of the first aspect, the receiving, by the baseband board in the BBU, the indication information of the RRU forwarding, includes: when the baseband board corresponds to the at least two RRUs, the base station receives the RRU forwarding by using the baseband board in a polling manner. The indication information is used to indicate that the baseband board sequentially receives the indication information forwarded by each RRU in units of time slots;

Correspondingly, determining, by the baseband board, the RRU that receives the indication information, including: determining, by the base station, which RRU forwards the indication information in the time slot k according to the polling manner, and determining the RRU as the RRU that receives the indication information, where k is positive Integer.

In the embodiment of the present invention, when the baseband board corresponds to at least two RRUs, the RRU that receives the indication information is determined by using a time slot and a polling manner that the indication information is received according to the baseband board, so that the base station can be The UEs that send the indication information to the RRUs corresponding to the same baseband board allocate the same resources. When the base station allocates the same resources to the at least two UEs, the UE can still determine the UE that sends the indication information, thereby multiplexing the PUCCH resources.

In a fourth possible implementation manner of the first aspect, the information source determining method further includes: when the code channel m and the time slot n are allocated to one UE, the base station directly determines to send according to the code channel m and the time slot n. The UE indicating the information.

According to a second aspect of the embodiments of the present invention, there is provided a resource allocation method, which may be performed by a base station, a base station processor and j RRUs, j≥2, the method comprising:

The base station receives the service request sent by the i UEs through the j RRUs; for each RRU, the base station determines the UE set that sends the service request to the RRU; the base station selects one UE from each of the set of UEs of the w UE sets; The base station allocates the same code channel and the same time slot to the selected w UEs, where the service request is used to request access to the base station, and the code channel is at least one of an SRI code channel and a CQI code channel, i≥j , 2 ≤ w ≤ j.

In the embodiment of the present invention, the same resource is allocated to the selected w UEs by selecting one UE from each of the set of UEs, so that the base station can allocate the same to the UEs that send the indication information to different RRUs. The UE, in use, determines the UE that sends the indication information according to the RRU, and solves the problem that the UE needs to allocate the indication information according to the resource. Therefore, different UEs need to be allocated different resources, resulting in the number of UEs that access the base station. The problem is that there is a shortage of PUCCH resources; when the base station allocates the same resources to at least two UEs, it is still possible to determine the UE that transmits the indication information, thereby multiplexing the PUCCH resources.

In a first possible implementation manner of the second aspect, the base station further includes a BBU, and for each RRU, determining a set of UEs that send a service request to the RRU, where the base station receives, by the baseband board in the BBU, j RRU forwardings. The service request; then, the base station determines a set of UEs that send a service request to each RRU according to the baseband board.

With the first possible implementation of the second aspect, the present embodiment provides two implementation manners for determining a set of UEs that send service requests to each RRU according to the baseband board. The following two implementation manners are respectively introduced.

In a second implementation manner of the second aspect, determining, by the baseband board, a UE set that sends a service request to each RRU, includes: when there is one baseband board corresponding to one RRU, the base station determines all service requests received by the baseband board. And then the UE that sends each service request forms a UE set; Thereafter, the base station determines an RRU corresponding to the baseband board; finally, the base station determines the UE set as a set of UEs that send a service request to the RRU.

In the embodiment of the present invention, when a baseband board corresponds to one RRU, the UE set to send a service request to the RRU according to the baseband board, so that the base station can be in the UE set that sends the service request to the RRU corresponding to the different baseband boards. The UE allocates the same resource, and when the base station allocates the same resource to the at least two UEs, the UE can still determine the UE that sends the indication information, thereby multiplexing the PUCCH resources.

In a third possible implementation manner of the second aspect, determining, by the baseband board, a UE set that sends a service request to each RRU, includes: when there is one baseband board corresponding to at least two RRUs, and the baseband board receives in a polling manner When the RRU forwards the service request, the base station determines all the service requests received by the baseband board in the time slot r, and the UE that sends each service request forms a UE set, wherein the polling mode is used to indicate that the baseband board is in the time slot unit. Receiving service requests forwarded by each RRU in sequence;

Correspondingly, determining, by the baseband board, the RRU that receives the indication information, including: determining, by the base station, which RRU forwards the service request in the slot r according to the polling manner; and then determining, by the base station, the UE set as the UE that sends the service request to the RRU A collection, where r is a positive integer.

In the embodiment of the present invention, when a baseband board corresponds to at least two RRUs, the RRU that receives the indication information is determined by using a time slot and a polling manner according to the baseband board to receive the service request, so that the base station can be the same baseband board. The UEs in the UE set that the corresponding RRU sends the service request allocate the same resource, and when the base station allocates the same resource to the at least two UEs, the UE can still determine the UE that sends the indication information, thereby multiplexing the PUCCH resources.

In a fourth possible implementation manner of the second aspect, the resource allocation method further includes: the base station allocates the same code channel and different time slots for each UE in each UE set, or the base station allocates each UE Different code channels and the same time slot, or the base station allocates different code channels and different time slots for each UE.

In the embodiment of the present invention, by assigning different resources to each UE in the same UE set, the base station can determine different UEs that send service requests to the same RRU, and achieve the effect of improving the accuracy of determining the UE that sends the service request.

According to a third aspect of the embodiments of the present invention, a base station is provided, the base station includes: a processor, a BBU connected to the processor, and at least two RRUs connected to the BBU; the processor is configured to execute the instruction, the BBU, and at least two RRUs are configured to be controlled by the processor, and the processor implements the instructions The information source determining method provided by the above first aspect.

According to a fourth aspect of the embodiments of the present invention, a base station includes: a processor, a BBU connected to the processor, and at least two RRUs connected to the BBU; the processor configured to execute the instruction, the BBU, and at least two The RRUs are configured to be controlled by a processor that implements the resource allocation method provided by the second aspect above by executing instructions.

According to a fifth aspect of the embodiments of the present invention, a base station is provided, where the base station includes at least one unit, and the at least one unit is configured to implement the information source determining method provided by the foregoing first aspect.

According to a sixth aspect of the embodiments of the present invention, a base station is provided, where the base station includes at least one unit, and the at least one unit is configured to implement the resource allocation method provided by the foregoing second aspect.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a schematic structural diagram of a communication system according to an exemplary embodiment of the present invention;

2 is a schematic structural diagram of a base station according to an exemplary embodiment of the present invention;

FIG. 3 is a flowchart of a resource allocation method according to an exemplary embodiment of the present invention; FIG.

4 is a flowchart of a method for determining a set of UEs that send a service request to each RRU according to an exemplary embodiment of the present invention;

FIG. 5 is a flowchart of a method for determining a set of UEs that send a service request to each RRU according to another exemplary embodiment of the present invention; FIG.

FIG. 6 is a flowchart of an information source determining method according to an exemplary embodiment of the present invention; FIG.

FIG. 7 is a flowchart of a method for determining an RRU that receives indication information according to an exemplary embodiment of the present invention; FIG.

FIG. 8 is a flowchart of a method for determining an RRU that receives indication information according to another exemplary embodiment of the present invention; FIG.

FIG. 9 is a schematic structural diagram of a resource allocation apparatus according to an exemplary embodiment of the present invention;

FIG. 10 is a schematic structural diagram of an information source determining apparatus according to an exemplary embodiment of the present invention.

detailed description

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

When the UE accesses the base station, the SRI resource and the CQI resource need to be configured by the base station, and the base station can determine the number of online UEs according to the number of allocated SRI resources and CQI resources. We refer to the maximum number of online UEs supported by a base station as the physical uplink control channel capacity. As the number of UEs accessing the base station increases, the physical uplink control channel needs to be expanded.

In the prior art, there are two ways to expand the capacity of the physical uplink control channel, and the base station allocates the SRI resource and the CQI resource to the UE in the same manner. The following uses the base station to allocate the SRI resource for the UE as an example, and the SRI resource includes the SRI code channel. And time slots.

The first way is to expand the physical uplink control channel capacity by increasing the baseband processing capability. That is, the SRI code channel is added within one transmission interval (English: Transmission Time Interval; TTI). It is assumed that the original baseband processing capability is: 10 SRI code channels are supported in one TTI, and the SRI period is fixed to 10 ms, and the SRI period includes 10 time slots with a duration of 1 ms. The SRI resource allocated by the base station to the UE includes the SRI code channel and the time slot. At this time, the physical uplink control channel capacity is 100 UEs. After the baseband processing capability is improved, 20 SRI code channels are supported in one TTI, and the SRI period is fixed to 10 ms. At this time, the physical uplink control channel capacity is 200 UEs.

The second way is to expand the physical uplink control channel capacity by elongating the SRI period. That is, the SRI code channel in one TTI is unchanged, and the SRI period becomes long. It is assumed that the original baseband processing capability is: 10 SRI code channels are supported in one TTI, and the SRI period is fixed to 10 ms, and the SRI period includes 10 time slots with a duration of 1 ms. The SRI resource allocated by the base station to the UE includes the SRI code channel and the time slot. At this time, the physical uplink control channel capacity is 100 UEs. The baseband processing capability after the extended SRI period is as follows: 10 SRI code channels are supported in one TTI, and the SRI period is fixed to 20 ms. At this time, the physical uplink control channel capacity is 200 UEs.

In the first method of enlarging the capacity of the physical uplink control channel, the increase of the SRI code channel may result in a larger channel resource occupied by the PUCCH, and the physical uplink shared channel (English: Physical Uplink Share Channel; PUSCH) is shared with the PUCCH. Upstream band resources, therefore, the channel resources occupied by the PUCCH become larger, which causes the channel resources occupied by the PUSCH to become smaller; In the mode of controlling the channel capacity, if the SRI period is extended, the UE may not be able to request scheduling resources in time when the uplink data transmission occurs, resulting in scheduling delay. To this end, please refer to the following examples provided by the present application:

Please refer to FIG. 1, which is a schematic structural diagram of a communication system according to an exemplary embodiment of the present invention. The communication system can be an LTE system. The communication system includes a UE 120 and a base station 140.

The UE 120 can be a smart phone, a tablet computer, an e-book reader, an MP3 (English: Moving Picture Experts Group Audio Layer III, MP3) player, and an MP4 (English: Moving Picture Experts Group Audio Layer IV, MP4). And laptops, etc. The UE 120 is capable of accessing a mobile communication network provided by the communication system.

The UE 120 is connected to the base station 140 via a mobile communication network.

The base station 140 is a core network element that operates on a single frequency network (English: Single Frequency Network; SFN) for interaction with the UE 120. Optionally, the base station 140 may be a base station (Node B) or an evolved base station (English: eVolution Node B; eNB for short).

Please refer to FIG. 2, which shows a schematic structural diagram of a base station according to another exemplary embodiment of the present invention. The base station may be the base station shown in FIG. 1. The base station includes: a processor 220, a baseband processing unit (English: Building Base Band Unite; BBU for short) 240 connected to the processor 220, and at least two connected to the BBU. Radio remote unit 260 (English: Radio Remote Unit; referred to as: RRU). Those skilled in the art will appreciate that the base station structure illustrated in FIG. 2 does not constitute a limitation to a base station, and may include more or fewer components than those illustrated, or some components may be combined, or different component arrangements. For example, the base station further includes a memory 280, a power supply, and the like. The RRU can also be replaced by a PIO Radio Remote Unit (PRRU) or other types of radio remote units having the same function, which is not limited in this embodiment. The following is an example of an RRU.

The processor 220 is a control center of the base station that connects various portions of the entire base station using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 280, and invoking data stored in the memory 280, executing The base station's various functions and processing data provide overall control of the base station. Optionally, the processor 220 may include one or more processing cores; optionally, the processor 220 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and an application. Etc. The modem processor primarily handles wireless communications. Understandable Yes, the above-mentioned modem processor may not be integrated into the processor 220, and the above-mentioned modem processor may be implemented as a single chip.

Memory 280 can be used in software programs as well as modules. The processor 220 executes various functional applications and data processing by running software programs and modules stored in the memory 280. The memory 280 can mainly include a storage program area and a storage data area, wherein the storage program area can store an operating system 281, a determination module 282, a transmission module 283, a receiving module 284, a selection module 285, an allocation module 286, and at least one other function. The application 287 or the like; the storage data area can store data (such as audio data, phone book, etc.) created according to the use of the base station. Moreover, memory 280 can be implemented by any type of volatile or non-volatile storage device or a combination thereof.

Transmitter 240 can include a radio frequency transmitting component, such as an antenna. Transmitter 240 is used to carry data or information in a wireless signal for transmission. The wireless signal can be a time-frequency resource in a mobile communication system.

Receiver 260 can include a radio frequency receiving component, such as an antenna. Receiver 260 is configured to receive data or information carried in a wireless signal. The wireless signal can be a time-frequency resource in a mobile communication system.

Please refer to FIG. 3, which is a flowchart of a resource allocation method according to an embodiment of the present invention. This embodiment is illustrated by using the resource allocation method in the base station shown in FIG. 1 , where the base station includes at least two RRUs. The method includes:

Step 301: Receive, by using j RRUs, a service request sent by i UEs, where the service request is used to request access to the base station, j≥2 and i≥j.

When the UE requests to access the base station, it sends a service request to the base station. After receiving the service request by the RRU, the base station needs to allocate resources to the UE, so that the UE sends the indication information to the base station through the resource. The indication information is at least one of SRI information and CQI information.

It should be noted that, before the UE sends a service request to the RRU, the base station further pre-configures the first correspondence between the RRU and the UE, and notifies the UE of the first correspondence, so that the UE can explicitly send the service request to which RRU. . Since one UE can only send a service request to one RRU, and one RRU can receive a service request sent by at least one UE, the first correspondence is: one RRU corresponds to at least one UE.

When only one UE sends a service request to the base station at the same time, the base station receives the service request sent by the UE through an RRU. When i UEs simultaneously send a service request to the base station at the same time, the base station receives the i UEs through j RRUs. The business request sent. Where the number of j is less than or equal to i quantity. That is, one RRU may receive a service request sent by one UE, or one RRU may receive a service request sent by at least two UEs.

Step 302: For each RRU, determine a set of UEs that send a service request to the RRU.

Each RRU can receive a service request sent by at least one UE. In this embodiment, a UE that sends a service request to the same RRU is referred to as a UE set.

In actual implementation, the i UEs send service requests to the j RRUs, and each RRU forwards all the service requests received to the baseband board in the BBU. The base station receives the service request through the baseband board, and the BBU is located in the base station. Since one RRU forwards the service request only to one baseband board, the base station can determine the set of UEs that send the service request to the RRU according to the baseband board.

In this embodiment, a baseband board can receive only one service request sent by the RRU. At this time, one baseband board corresponds to one RRU; or one baseband board can also receive service requests sent by at least two RRUs. The baseband board corresponds to at least two RRUs. The second correspondence between the baseband board and the RRU is pre-configured. For example, the second correspondence may be configured by a configuration personnel in the process of configuring the base station. Specifically, the configuration personnel may input a configuration instruction including a second correspondence relationship to the base station, the base station stores the second correspondence, and controls each baseband board to communicate with the corresponding RRU according to the second correspondence.

According to the second correspondence between the baseband board and the RRU, the present embodiment provides two implementation manners for determining a set of UEs that send service requests to each RRU according to the baseband board. The following two implementation manners are respectively introduced.

1) Please refer to the first flow chart of determining the set of UEs that send service requests to each RRU as shown in FIG.

Step 302a: The baseband board in the BBU receives the service request forwarded by the R RRUs. When there is one baseband board corresponding to one RRU, the UE corresponding to all the service requests received by the baseband board constitutes a UE set.

When a baseband board corresponds to one RRU, the baseband board only receives the service request forwarded by the RRU, and may first determine all service requests received by the baseband board, and then determine the UE that sends each service request, and the determined UEs are composed. UE collection.

In step 302b, an RRU corresponding to the baseband board is determined.

Step 302c: Determine the UE set as a set of UEs that send a service request to the RRU.

Assume that the baseband board 1 corresponds to the RRU1, and the baseband board 1 receives the service requests 1 and 2, and the UE1 that sends the service request 1 and the UE2 that sends the service request 2 form a UE set corresponding to the RRU1; The baseband board 2 corresponds to the RRU 2, the baseband board 2 receives the service request 3, and the UE 3 that transmits the service request 3 constitutes a UE set corresponding to the RRU 2.

2) Please refer to the second flowchart shown in FIG. 5 for determining the set of UEs that send service requests to each RRU.

Step 302d, when there is a baseband board corresponding to at least two RRUs, and the baseband board receives the service request forwarded by each RRU in a polling manner, the UE corresponding to all service requests received by the baseband board in the slot r The UE set is configured to indicate that the baseband board sequentially receives the service request forwarded by each RRU in units of time slots.

If a baseband board corresponds to at least two RRUs, the baseband board needs to receive the service request forwarded by the at least two RRUs in a polling manner. Assume that the baseband board 1 corresponds to the RRU1 and the RRU2, and the polling mode is: receiving the service request forwarded by the RRU1 in the time slot 1, and receiving the service request forwarded by the RRU2 in the time slot 2, when the current time slot is the time slot 1, the baseband The board 1 receives the service request forwarded by the RRU1; when the current time slot is the time slot 2, the baseband board 1 receives the service request forwarded by the RRU2.

Since the baseband board receives only one RRU forwarded service request in one time slot, it can first determine all the service requests received by the baseband board in the time slot r, and then determine the UE that sends each service request, which will be determined. Each UE constitutes a UE set.

In step 302e, the RRU is determined according to the slot r and the polling manner, and r is a positive integer.

Step 302f: Determine the UE set as a set of UEs that send a service request to the RRU.

For example, the corresponding relationship and the polling mode are exemplified. When the baseband board 1 receives the service requests 1 and 2 in the time slot 1, the UE1 that sends the service request 1 and the UE2 that sends the service request 2 are composed. Corresponding to the UE set of the RRU1; when the baseband board 1 receives the service request 3 in the slot 2, the UE3 that transmits the service request 3 constitutes a UE set corresponding to the RRU2.

Step 303: Select one UE from each of the set of UEs in the set of UEs, 2≤w≤j.

When the r RRUs receive the service request sent by the i UEs, the UEs that send the service request to the same RRU may be combined into one UE set, thereby obtaining j UE sets. The base station may select w UE sets from the set of j UEs, and select one UE from each of the w sets, and at this time, w UEs may be selected. Wherein, the number of w is less than or equal to the number of j.

There are a plurality of selection rules for selecting w UE sets from the j UE sets. For example, w UE sets may be randomly selected. Alternatively, j UE sets may be performed according to the number of UEs included in each UE set. Sorting, selecting the first set of w UEs; or, setting a priority for the set of j UEs, selecting a set of w UEs with a higher priority, and the like, which are not limited in this embodiment. Above The selection rules for the UE set can be configured during the process of configuring the base station.

Optionally, there are many selection rules for selecting one UE from the UE set, for example, one UE may be randomly selected; or, each UE in the UE set is set with a priority, and one UE with the highest priority is selected, etc. This embodiment is not limited. The foregoing selection rules for the UE may be configured in the process of configuring the base station.

Step 304: Allocate the same code channel and the same time slot to the selected w UEs, and the code channel is at least one of an SRI code channel and a CQI code channel.

Since the selected w UEs correspond to different RRUs, the base station may determine, according to the RRU, the UE that sends the indication information, and does not need to allocate different resources to the UE to determine the UE that sends the indication information. In this case, the base station may And allocating the same resource to the w UEs, and storing the third correspondence between the resources and the w UEs, so that the base station can receive the indication information sent by the UE on the resource, and the base station can The third correspondence determines the w UEs, and the base station determines, according to the baseband board that receives the indication information and the stored second correspondence, the RRU that receives the indication information, and then according to the RRU and the stored first correspondence relationship from the The UE that transmits the indication information is determined among the UEs.

It is assumed that UE1, UE2, and UE3 are UE set 1 corresponding to RRU1, UE4 is UE set 2 corresponding to RRU2, and UE5 and UE6 are UE set 3 corresponding to RRU3. At this time, the base station can allocate the same for UE1, UE4, and UE5. Or allocate the same resources for UE2, UE4, and UE5; or allocate the same resources for UE3, UE4, and UE5; or allocate the same resources for UE1, UE4, and UE6; or, UE2, UE4, and UE6 Allocate the same resources; or, allocate the same resources for UE3, UE4, and UE6.

Optionally, after the resources are allocated to the w UEs, the base station may further perform

steps

303 and 304 based on the remaining UEs, where the value of w may be the same as or different from the value of the previous w. This embodiment is not limited.

In a first possible implementation, after the base station allocates resources for the w UEs, the base station continues to select one remaining UE from each of the set of w UEs, and allocates the remaining w remaining UEs. The same resource, the resource allocated this time is different from the resource allocated last time, and the base station continues to store the third correspondence between the resource allocated this time and the selected w remaining UEs.

The following is also exemplified by the corresponding relationship. It is assumed that the base station allocates code channel 1 and time slot 1 for UE1, UE4, and UE5. At this time, there are remaining UE2 and UE3 in UE set 1, and there is no remaining amount in UE set 2. UE, UE 3 has 3 remaining UE6, and the base station can be UE2 and UE6 Code channel 2 and time slot 1; or, the base station can allocate code channel 2 and time slot 1 for UE3 and UE6.

In a second possible implementation manner, after the base station allocates resources for the w UEs, the base station may re-select s UE sets from each UE set based on the remaining UEs, and select each UE from the s UE sets. A UE is selected in the set, 2 ≤ s ≤ j, and the selected s UEs are allocated the same resource, and the base station continues to store the third corresponding relationship between the currently allocated resources and the selected s remaining UEs.

For example, UE7, UE8, and UE9 are UE set 4 corresponding to RRU4, and the base station allocates code channel 1 and time slot 1 for UE1, UE4, and UE5. At this time, UE set 3 There is a remaining UE6. If the UE set selected by the base station is the UE set 3 and the UE set 4, the base station may allocate the code channel 2 and the time slot 1 for the UE6 and the UE7; or, the base station may allocate the code channel 2 for the UE6 and the UE8. And time slot 1; or, the base station can allocate code channel 2 and time slot 1 for UE6 and UE9.

Step 305, assigning the same code channel and different time slots to each UE in each UE set, or assigning different code channels and the same time slot to each UE, or assigning different code channels to each UE and Different time slots.

The base station can only distinguish between UEs that send service requests to different RRUs, and cannot distinguish between UEs that send service requests to the same RRU. Therefore, the base station needs to allocate different resources to each UE in the same UE set, and continue to store the resources and each UE. The third correspondence. The different resources are any of the following: the same code channel and different time slots, or different code channels and the same time slot, or different code channels and different time slots.

It should be noted that, in FIG. 3, step 303 is performed first, then step 304 is performed, and finally step 305 is performed to illustrate. In actual implementation, the embodiment does not operate between step 303 and step 305 and between step 304 and step 305. The order of execution is limited.

In summary, the resource allocation method provided in this embodiment allocates the same resource to the selected w UEs by selecting one UE from each of the set of UEs, so that the base station can be different. The UE that sends the indication information to the RRU allocates the same resource. In use, the UE that sends the indication information is determined according to the RRU, and when the base station allocates resources to the UE, it is determined according to which one of the received indication information is received according to the resource. The UE needs to allocate different resources to different UEs, and determines the UE that sends the indication information according to different resources, thereby causing a shortage of resources in the PUCCH base station as the number of UEs accessing the base station increases; When the base station allocates the same resource to the at least two UEs, the UE that sends the indication information can still be determined, thereby multiplexing the resources of the base station and reducing the resource overhead of the PUCCH.

In addition, by allocating different resources to each UE in the same UE set, the base station can determine different UEs that send service requests to the same RRU, and achieve the effect of improving the accuracy of the base station determining the UE that sends the service request.

It should be noted that the steps related to the base station in the foregoing method embodiments may be implemented by a processor of the base station calling a corresponding module in a memory of the base station. At the same time, the steps performed by the base station can be separately implemented as a resource allocation method on the base station side.

Please refer to FIG. 6, which shows a flowchart of an information source determining method provided by an exemplary embodiment of the present invention. The method is applied to the base station shown in FIG. 1 by using the method, where the base station includes at least two RRUs, and the method includes:

Step 601: Receive, by the RRU, the indication information sent by the UE on the code channel m on the time slot n, where the indication information is at least one of SRI information and CQI information, where n and m are positive integers.

After accessing the base station, the UE needs to send indication information to the base station, where the indication information is at least one of SRI information and CQI information. The SRI information is used to request uplink resource configuration from the base station, and the CQI information is used to indicate channel quality.

Before the UE sends the indication information, the base station allocates the code channel m and the time slot n for transmitting the indication information to the UE, and the UE sends the indication information to the RRU through the code channel m on the time slot n. At this time, the base station receives the indication information sent by the UE on the code channel m on the slot n through the RRU. Wherein, when the resource is an SRI resource, the code channel is an SRI code channel; when the resource is a CQI resource, the code channel is a CQI code channel.

It should be noted that, according to the embodiment shown in FIG. 3, the base station may pre-configure the first correspondence between the RRU and the UE, and notify the UE of the first correspondence, and the UE may determine which to use according to the first correspondence. The RRU sends an indication message.

In this embodiment, when only one UE accesses the base station at the same time, the base station can uniquely allocate the code channel m and the time slot n to the UE. In this case, step 602 is performed; when at least two UEs are simultaneously accessed at the same time. In the case of the base station, the base station allocates the code channel m and the time slot n to the at least two UEs. The process for the base station to allocate code channels and time slots for the UE is described in detail in the embodiment shown in FIG. 3, and details are not described herein.

Step 602: When the code channel m and the time slot n are allocated to one UE, determine the UE that sends the indication information according to the code channel m and the time slot n, and end the flow.

It can be seen from the embodiment shown in FIG. 3 that after the base station allocates resources for the UE, the third correspondence between the resource and the UE is stored in the base station. Assume that when code channel m and time slot n are assigned to UE1, the base The station stores the code channel m and the third correspondence between the time slot n and the UE1; or, when the code channel m and the time slot n are allocated to the UE2, the base station stores the code channel m and the third correspondence of the time slot n and the UE2. relationship.

After the base station determines the code channel m and the time slot n, the base station may search for the UE corresponding to the code channel m and the time slot n in the stored third correspondence, and determine the UE as the UE that sends the indication information.

Step 603: When the code channel m and the time slot n are allocated to at least two UEs, and at least two UEs correspond to different RRUs, determine an RRU that receives the indication information.

In this embodiment, the base station can allocate the code channel m and the time slot n to the at least two UEs, so that at least two UEs can multiplex the PUCCH resources, and the UE that needs to send the indication information according to the resource needs to be solved. Different UEs allocate different resources, resulting in a shortage of PUCCH resources as the number of UEs accessing the base station increases. When the base station allocates the same resources to at least two UEs, the UE can still determine the UE that sends the indication information. Thereby the effect of multiplexing PUCCH resources is achieved.

When the base station determines the code channel m and the time slot n, and finds that the code channel m and the time slot n are allocated to at least two UEs in the third correspondence, the at least two UEs may be in the slot n code channel. The indication information is transmitted on m, and therefore, the base station needs to determine the UE that transmits the indication information on the slot n code channel m.

In actual implementation, the UE sends the indication information to the RRU on the slot n code channel m, and the RRU forwards the indication information to the baseband board in the BBU, and the base station receives the indication information through the baseband board, where the BBU is located in the base station. It can be seen that the base station can determine the RRU according to the baseband board, and then determine the UE that sends the indication information according to the RRU.

In this embodiment, a baseband board can receive only one service request sent by the RRU. At this time, one baseband board corresponds to one RRU; or one baseband board can also receive service requests sent by at least two RRUs. The baseband board corresponds to at least two RRUs. The second corresponding relationship between the baseband board and the RRU is pre-configured. For details, refer to the description in step 302, and details are not described herein.

According to the second corresponding relationship between the baseband board and the RRU, the embodiment provides two implementation manners for determining the RRU for receiving the indication information according to the baseband board. The following two implementation manners are respectively introduced.

1) Please refer to the flow chart of the first type of RRU for determining the reception indication information shown in FIG.

Step 603a: When the baseband board corresponds to one RRU, the indication information of the RRU forwarding is received by the baseband board in the BBU.

Step 603b, determining an RRU corresponding to the baseband board as an RRU that receives the indication information.

If a baseband board receives an indication message that the RRU forwards, the base station may determine the connection first. Receiving the baseband board of the indication information, and determining the RRU corresponding to the baseband board by searching for the second correspondence, and determining the corresponding RRU as the RRU that receives the indication information.

It is assumed that the baseband board 1 corresponds to the RRU1. When the base station receives the indication information through the baseband board 1, it is determined that the RRU receiving the indication information is the RRU1.

2) Referring to the second flowchart shown in FIG. 8 for determining the RRU receiving the indication information.

Step 603c: When the baseband board corresponds to the at least two RRUs, the baseband board receives the indication information of the RRU forwarding in a polling manner, where the polling manner is used to indicate that the baseband board sequentially receives the indication information of each RRU forwarding in units of time slots.

In step 603d, the RRU, k receiving the indication information is determined according to the time slot k in which the baseband board receives the indication information and the polling manner, and k is a positive integer.

If a baseband board corresponds to at least two RRUs, the baseband board needs to receive the indication information of the at least two RRUs in a polling manner. It is assumed that the baseband board 1 corresponds to the RRU1 and the RRU2, and the polling manner is: receiving the indication information of the RRU1 forwarding in the slot 1 and receiving the indication information of the RRU2 forwarding in the slot 2, when the current slot is the slot 1, the baseband The board 1 receives the indication information forwarded by the RRU1; when the current time slot is the time slot 2, the baseband board 1 receives the indication information forwarded by the RRU2.

The baseband board determines at least two RRUs corresponding to the baseband board by searching for the second correspondence, records the time slot in which the indication information is received, and determines, according to the polling manner, which RRU to forward the indication information when the time slot is received, thereby The RRU that receives the indication information is determined.

For example, when the baseband board 1 receives the indication information in the time slot 1, it is determined that the RRU that receives the indication information is the RRU1.

Step 604: Determine, from the at least two UEs, the UE that sends the indication information according to the determined RRU.

Since at least two UEs in this embodiment correspond to different RRUs, that is, each UE sends indication information to different RRUs, and the base station has determined to receive the RRUs that indicate the information, the base station may be at least according to the determined RRUs. The UE that transmits the indication information is determined among the two UEs.

It is assumed that the UE1 sends the indication information to the RRU1, and the UE2 sends the indication information to the RRU2, and the base station determines that the resources allocated for the UE1 and the UE2 are both the code channel m and the time slot n by searching for the pre-stored third correspondence, if the base station searches for the pre-stored The second correspondence determines that the RRU that receives the indication information is the RRU1. In this case, the UE that sends the indication information is determined to be the UE1 by searching for the pre-stored first correspondence.

In summary, the method for determining the information source provided in this embodiment, when the same code channel and the same time slot are allocated to at least two UEs, determine the RRU that receives the indication information, and then passes the determined RRU. Determining a UE that sends the indication information from the at least two UEs; resolving the UE that needs to determine the transmission indication information according to the resource, therefore, different UEs need to be allocated different resources, so that the number of UEs accessing the base station increases. The problem that the PUCCH resource is in short supply; when the base station allocates the same resource to at least two UEs, it can still determine the UE that sends the indication information, so that the PUCCH resource can be multiplexed.

It should be noted that the steps related to the base station in the foregoing method embodiments may be implemented by a processor of the base station calling a corresponding module in a memory of the base station. Meanwhile, the steps performed by the base station can be separately implemented as an information source determining method on the side of the base station.

Please refer to FIG. 9, which is a schematic structural diagram of an apparatus for resource allocation according to an embodiment of the present invention. The device for resource allocation may be implemented by hardware or a collection of hardware and software as all or part of the above base station. The device includes:

The receiving unit 910 is configured to implement the functions of at least one of step 301, step 302a, and step 302d of the foregoing embodiment;

The determining unit 920 is configured to implement the functions of at least one of the foregoing step 302, step 302b, step 302c, step 302e, and step 302f;

The selecting unit 930 is configured to implement the function of step 303 above;

The allocating unit 940 is configured to implement the functions of at least one of the foregoing

steps

304 and 305. For details, refer to the foregoing method embodiments.

It should be noted that the foregoing receiving unit 910 can be implemented by the RRU of the base station and the receiving module of the BBU; the determining unit 920 can be implemented by the processor of the base station executing the instruction of the determining module in the memory; the selecting unit 930 The instructions of the selection module in the memory may be implemented by a processor of the base station; the allocation unit 940 may be implemented by a processor of the base station executing an instruction of the allocation module in the memory.

Please refer to FIG. 10, which is a schematic structural diagram of an apparatus for determining information source according to an embodiment of the present invention. The device determined by the information source can be implemented as a whole or a part of the above base station by hardware or a set of hardware and software. The device includes:

The receiving unit 1010 is configured to implement the functions of at least one of step 601, step 603a, and step 603c of the foregoing embodiment;

The determining unit 1020 is configured to implement the foregoing steps 602, 603, 603b, and 603d, The function of at least one of the steps in step 604, the relevant details may be combined with reference to the above method embodiments.

It should be noted that the foregoing receiving unit 1010 can be implemented by the RRU of the base station and the receiving module of the BBU; the determining unit 1020 can be implemented by executing a command of the determining module in the memory by the processor of the base station.

A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

A base station, comprising: a processor and at least two radio remote units RRU;

The RRU is configured to receive indication information that is sent by the user equipment UE on the code channel m on the time slot n, where the indication information is at least one of a scheduling request indication SRI information and a channel quality indication CQI information, where the And the m is a positive integer;

The processor, configured to: when the code channel m and the time slot n are allocated to at least two UEs, and the at least two UEs correspond to different RRUs, determine to receive the indication information RRU;

The processor, configured to determine, according to the determined RRU, a UE that sends the indication information from the at least two UEs.
The base station according to claim 1, wherein the base station further comprises: a baseband processing unit BBU, wherein one end of the BBU is connected to the processor, and the other end is connected to the RRU, and the BBU includes a baseband board;

The baseband board is configured to receive the indication information forwarded by the RRU;

The processor is configured to determine, according to the baseband board, the RRU that receives the indication information.
The base station according to claim 2, characterized in that

The processor is specifically configured to determine, when the baseband board corresponds to one RRU, an RRU corresponding to the baseband board as an RRU that receives the indication information.
The base station according to claim 2, characterized in that

The baseband board is configured to: when the baseband board corresponds to at least two RRUs, receive the indication information that is forwarded by the RRU in a polling manner, where the polling manner is used to indicate that the baseband board is in a time slot. Receiving, by the unit, the indication information forwarded by each RRU in sequence;

The processor is specifically configured to determine, according to the time slot k that the baseband board receives the indication information, and the polling manner, the RRU that receives the indication information, where k is a positive integer.
The base station according to claim 1, wherein

The processor is further configured to: when the code channel m and the time slot n are allocated to one UE, The UE transmitting the indication information is determined according to the code channel m and the time slot n.
A base station, comprising: a processor and j radio remote units RRU;

The j RRUs are configured to receive a service request sent by the i user equipments, where the service request is used to request access to the base station, j≥2 and i≥j;

The processor, configured to determine, for each RRU, a set of UEs that send the service request to the RRU;

The processor is further configured to select one UE from each of the set of UEs of the set of UEs, 2≤w≤j;

The processor is further configured to allocate the same code channel and the same time slot to the selected w UEs, where the code channel is at least one of a scheduling request indication SRI code channel and a channel quality indicator CQI code channel.
The base station according to claim 6, wherein the base station further comprises: a baseband processing unit BBU, one end of the BBU is connected to the processor, and the other end is connected to the RRU, and the BBU includes a baseband board;

The baseband board is specifically configured to receive the service request forwarded by the j RRUs;

The processor is specifically configured to determine, according to the baseband board, a set of UEs that send the service request to each RRU.
The base station according to claim 7, wherein the processor is specifically configured to:

When a baseband board corresponds to one RRU, the UE corresponding to all the service requests received by the baseband board constitutes a UE set;

Determining an RRU corresponding to the baseband board;

The set of UEs is determined to be a set of UEs that send the service request to the RRU.
The base station according to claim 7, wherein the processor is specifically configured to:

When there is a baseband board corresponding to at least two RRUs, and the baseband board receives the service request forwarded by each RRU in a polling manner, corresponding to all service requests received by the baseband board in the slot r The UE is configured as a set of UEs, and the polling mode is used to instruct the baseband board to sequentially receive service requests forwarded by each RRU in units of time slots;

Determining the RRU according to the time slot r and the polling manner, where r is a positive integer;

The set of UEs is determined to be a set of UEs that send the service request to the RRU.
A base station according to any one of claims 6 to 9, wherein

The processor is further configured to allocate the same code channel and different time slots for each UE in each UE set, or allocate different code channels and the same time slot for each UE, or Each UE allocates different code channels and different time slots.
An information source determining apparatus is used in a base station, where the base station includes at least two radio remote unit RRUs, wherein the apparatus includes:

a receiving unit, configured to receive, by using the RRU, the indication information that is sent by the user equipment UE on the code channel m on the time slot n, where the indication information is at least one of a scheduling request indication SRI information and a channel quality indication CQI information, The n and the m are positive integers;

a determining unit, configured to: when the code channel m and the time slot n are allocated to at least two UEs, and the at least two UEs correspond to different RRUs, determine the RRU that receives the indication information;

The determining unit is further configured to determine, according to the determined RRU, the UE that sends the indication information from the at least two UEs.
The apparatus according to claim 11, wherein said base station further comprises a baseband processing unit BBU,

The receiving unit is configured to receive, by using a baseband board in the BBU, the indication information that is forwarded by the RRU;

The determining unit is specifically configured to determine, according to the baseband board, the RRU that receives the indication information.
The device according to claim 12, characterized in that

The determining unit is specifically configured to determine, when the baseband board corresponds to one RRU, an RRU corresponding to the baseband board as an RRU that receives the indication information.
The device according to claim 12, characterized in that

The receiving unit is configured to: when the baseband board corresponds to at least two RRUs, receive the indication information that is forwarded by the RRU by using the baseband board in a polling manner, where the polling manner is used to indicate The baseband board sequentially receives the indication information forwarded by each RRU in units of time slots;

The determining unit is specifically configured to determine, according to the time slot k that the baseband board receives the indication information, and the polling manner, the RRU that receives the indication information, where k is a positive integer.
The device of claim 11 wherein:

The determining unit is further configured to: when the code channel m and the time slot n are allocated to one UE, determine, according to the code channel m and the time slot n, the UE that sends the indication information.
A resource allocation apparatus, wherein the base station includes at least two radio remote units RRU, and the apparatus includes:

a receiving unit, configured to receive, by using the j RRUs, a service request sent by the user equipment UE, where the service request is used to request access to the base station, j≥2 and i≥j;

a determining unit, configured, for each RRU, a set of UEs that send the service request to the RRU;

a selecting unit, configured to select one UE from each of the set of UEs in the set of UEs, 2≤w≤j;

And an allocating unit, configured to allocate the same code channel and the same time slot to the w UEs selected by the selecting unit, where the code channel is at least one of a scheduling request indication SRI code channel and a channel quality indicator CQI code channel.
The apparatus according to claim 16, wherein said base station further comprises a baseband processing unit BBU,

The receiving unit is configured to receive, by using a baseband board in the BBU, the service request forwarded by the j RRUs;

The determining unit is specifically configured to determine, according to the baseband board, a UE set that sends the service request to each RRU.
The device of claim 17 wherein:

The receiving unit is configured to: when there is one baseband board corresponding to one RRU, the UE corresponding to all the service requests received by the baseband board is formed into a UE set;

The determining unit is specifically configured to determine an RRU corresponding to the baseband board;

The determining unit is specifically configured to determine, by the UE set, that the service is sent to the RRU The set of UEs requested.
The device of claim 17 wherein:

The receiving unit is configured to receive the baseband board in a time slot r when there is a baseband board corresponding to at least two RRUs, and the baseband board receives the service request forwarded by each RRU in a polling manner. The UE corresponding to all the service requests is configured to form a UE set, and the polling mode is used to instruct the baseband board to sequentially receive the service request forwarded by each RRU in units of time slots;

The determining unit is specifically configured to determine the RRU according to the time slot r and the polling manner, where r is a positive integer;

The determining unit is specifically configured to determine the UE set as a UE set that sends the service request to the RRU.
Apparatus according to any one of claims 16 to 19, wherein

The allocating unit is further configured to allocate the same code channel and different time slots for each UE in each UE set, or allocate different code channels and the same time slot for the respective UEs, or Each UE allocates different code channels and different time slots.
An information source determining method is used in a base station, where the base station includes at least two radio remote unit RRUs, where the method includes:

Receiving, by the RRU, the indication information that is sent by the user equipment UE on the code channel m on the time slot n, where the indication information is at least one of a scheduling request indication SRI information and a channel quality indication CQI information, where the n and the Said m is a positive integer;

When the code channel m and the time slot n are allocated to at least two UEs, and the at least two UEs correspond to different RRUs, determining the RRU that receives the indication information;

Determining, from the at least two UEs, the UE transmitting the indication information according to the determined RRU.
The method according to claim 21, wherein the base station further comprises a baseband processing unit BBU, and the determining to receive the RRU of the indication information comprises:

Receiving, by the baseband board in the BBU, the indication information forwarded by the RRU;

Determining the RRU that receives the indication information according to the baseband board.
The method according to claim 22, wherein the determining, according to the baseband board, the RRU that receives the indication information comprises:

When the baseband board corresponds to one RRU, the RRU corresponding to the baseband board is determined as an RRU that receives the indication information.
The method of claim 22, wherein

Receiving, by the baseband board in the BBU, the indication information that is forwarded by the RRU, when the baseband board corresponds to at least two RRUs, receiving, by the baseband board, the RRU forwarding in a polling manner. The indication information, the polling mode is used to instruct the baseband board to sequentially receive indication information forwarded by each RRU in units of time slots;

Determining, according to the baseband board, the RRU that receives the indication information, including: determining, according to the time slot k that the baseband board receives the indication information, and the polling manner, determining to receive the indication information RRU, the k is a positive integer.
The method of claim 21, wherein the method further comprises:

When the code channel m and the time slot n are allocated to one UE, the UE transmitting the indication information is determined according to the code channel m and the time slot n.
A resource allocation method, characterized in that, in a base station, the base station includes at least two radio remote units RRU, and the method includes:

Receiving, by the j RRUs, a service request sent by the user equipment UE, where the service request is used to request access to the base station, j≥2 and i≥j;

Determining, for each RRU, a set of UEs that send the service request to the RRU;

Selecting one UE from each of the set of UEs in the set of UEs, 2≤w≤j;

The selected w UEs are allocated the same code channel and the same time slot, and the code channel is at least one of a scheduling request indication SRI code channel and a channel quality indication CQI code channel.
The method according to claim 26, wherein the base station further comprises a baseband processing unit BBU, and for each RRU, determining a UE set for sending the service request to the RRU, comprising:

Receiving, by the baseband board in the BBU, the service request forwarded by the j RRUs;

Determining, according to the baseband board, a set of UEs that send the service request to each RRU.
The method according to claim 27, wherein the determining, according to the baseband board, a set of UEs that send the service request to each RRU comprises:

When a baseband board corresponds to one RRU, the UE corresponding to all the service requests received by the baseband board constitutes a UE set;

Determining an RRU corresponding to the baseband board;

The set of UEs is determined to be a set of UEs that send the service request to the RRU.
The method according to claim 27, wherein the determining, according to the baseband board, a set of UEs that send the service request to each RRU comprises:

When there is a baseband board corresponding to at least two RRUs, and the baseband board receives the service request forwarded by each RRU in a polling manner, corresponding to all service requests received by the baseband board in the slot r The UE is configured as a set of UEs, and the polling mode is used to instruct the baseband board to sequentially receive service requests forwarded by each RRU in units of time slots;

Determining the RRU according to the time slot r and the polling manner, where r is a positive integer;

The set of UEs is determined to be a set of UEs that send the service request to the RRU.
The method according to any one of claims 26 to 29, wherein the method further comprises:

Assigning the same code channel and different time slots to each UE in each UE set, or assigning different code channels and the same time slots to the respective UEs, or assigning different code channels to the respective UEs. And different time slots.