阅读说明：本技术 无线回程网络中的资源划分 (Resource partitioning in wireless backhaul networks ) 是由 N·阿贝迪尼 K·G·汉佩尔 J·李 S·萨布拉马尼安 M·N·*** J·塞尚 于 2018-05-25 设计创作，主要内容包括：描述了用于无线通信的方法、系统和设备。无线节点可在无线回程通信网络中在该无线节点与第二无线节点之间建立无线连接。无线节点可标识供在接入通信或回程通信中的至少一者中使用的第一共用资源集。第一共用资源集被分配以供无线回程通信网络的无线节点共同使用。无线节点可标识可用于接入通信或回程通信中的至少一者的第二经划分资源集。第二集被划分成各自被分配以供无线回程通信网络的一个或多个无线节点的所选子集使用的多个子集。(Methods, systems, and devices for wireless communication are described. The wireless node may establish a wireless connection between the wireless node and a second wireless node in a wireless backhaul communication network. The wireless node may identify a first set of common resources for use in at least one of access communications or backhaul communications. The first set of common resources is allocated for common use by wireless nodes of the wireless backhaul communication network. The wireless node may identify a second set of partitioned resources available for at least one of access communications or backhaul communications. The second set is divided into a plurality of subsets that are each allocated for use by a selected subset of one or more wireless nodes of the wireless backhaul communication network.)

1. A method for wireless communication, comprising:

establishing a wireless connection between a first wireless node and a second wireless node in a wireless backhaul communication network;

identifying a first set of common resources for use in at least one of access communications or backhaul communications, wherein the first set of common resources are allocated for common use by wireless nodes of the wireless backhaul communications network; and

identifying a second set of partitioned resources available for at least one of access communications or backhaul communications, the second set partitioned into a plurality of subsets each allocated for use by a selected subset of one or more wireless nodes of the wireless backhaul communication network.

2. The method of claim 1, further comprising:

communicating with the second wireless node using the first set of common resources or the second set of partitioned resources.

3. The method of claim 1, further comprising:

receiving a message, wherein identifying the first set of shared resources is based at least in part on the received message.

4. The method of claim 3, wherein the message is received from a central scheduler function of a core network.

5. The method of claim 3, wherein the message is received from a neighboring wireless node of the wireless backhaul communication network.

6. The method of claim 3, wherein the message identifying the first set of common resources comprises a minimum system information (minSI) message, a Master Information Block (MIB) message, a System Information Block (SIB) message, an upper layer message, a synchronization signal, a reference signal, a Radio Resource Control (RRC) message, or any combination thereof.

7. The method of claim 1, further comprising:

transmitting a message to a neighboring wireless node identifying at least a portion of the first set of shared resources.

8. The method of claim 1, further comprising:

receiving a message, wherein identifying a subset of resources of the second partitioned set of resources is based at least in part on the received message.

9. The method of claim 8, wherein the message is received from a central scheduler function of a core network.

10. The method of claim 8, wherein the message is received from a neighboring wireless node of the wireless backhaul communication network.

11. The method of claim 8, wherein the message identifying the resource subset of the second partitioned set of resources comprises a minimum system information (minSI) message, an upper layer message, a Master Information Block (MIB) message, a System Information Block (SIB) message, a synchronization signal, a reference signal, a Radio Resource Control (RRC) message, or any combination thereof.

12. The method of claim 1, further comprising:

transmitting a message to a neighboring wireless node identifying at least a portion of a subset of resources of the second partitioned set of resources.

13. The method of claim 1, further comprising:

identifying a subset of resources of the first common set of resources and the second partitioned set of resources based at least in part on using information stored by the first wireless node.

14. The method of claim 1, further comprising:

performing an access procedure with at least one other wireless node of the wireless backhaul communication network using the first set of common resources.

15. The method of claim 14, wherein the access procedure comprises at least one of: a synchronization procedure, a random access procedure, a system information procedure, a reference signal procedure, a paging procedure, a discovery messaging procedure, a radio resource management procedure, a radio link management procedure, or any combination thereof.

16. The method of claim 15, wherein the synchronization procedure comprises communicating synchronization signals or communicating on a synchronization channel using at least a portion of the first set of common resources for access communications, backhaul communications, or a combination thereof.

17. The method of claim 15, wherein the random access procedure comprises communicating at least one of a Random Access Channel (RACH) message 1, a RACH message 2, a RACH message 3, or a RACH message 4 using at least a portion of the first set of common resources for access communications, backhaul communications, or a combination thereof.

18. The method of claim 15, wherein the system information procedure comprises communicating at least one of a Master Information Block (MIB), a System Information Block (SIB), a Remaining Minimum System Information (RMSI), or a minimum system information (minisi) using at least a portion of the first set of common resources for access communication, backhaul communication, or a combination thereof.

19. The method of claim 15, wherein the reference signal procedure comprises communicating at least one of a channel state information reference signal (CSI-RS), or a Positioning Reference Signal (PRS), or a Beamforming Reference Signal (BRS) using at least a portion of a first set of common resources for access communications, backhaul communications, or a combination thereof.

20. The method of claim 15, wherein the paging procedure comprises communicating on at least one of a control channel, or a data channel, or a combination thereof.

21. The method of claim 1, wherein the wireless backhaul communication network comprises a millimeter wave (mmW) wireless communication network.

22. The method of claim 1, wherein:

the first set of common resources or the second set of partitioned resources comprises time division multiplexed resources, frequency division multiplexed resources, code division multiplexed resources, space division multiplexed resources, or any combination thereof.

23. The method of claim 1, further comprising:

transmitting a signal indicating that a subset of the first set of shared resources is diverted for use in local communications.

24. The method of claim 1, further comprising:

transmitting a first signal indicating a request for reuse of a subset of the first set of shared resources for local communications;

receiving, from at least one of the wireless nodes, a second signal indicating a referral approval for a subset of the first set of common resources; and

using a subset of the first set of shared resources based at least in part on the second signal.

25. An apparatus for wireless communication, comprising:

means for establishing a wireless connection between a first wireless node and a second wireless node in a wireless backhaul communication network;

means for identifying a first set of common resources for use in at least one of access communications or backhaul communications, wherein the first set of common resources are allocated for common use by wireless nodes of the wireless backhaul communication network; and

means for identifying a second set of partitioned resources available for at least one of access communications or backhaul communications, the second set partitioned into a plurality of subsets each allocated for use by a selected subset of one or more wireless nodes of the wireless backhaul communication network.

26. The apparatus of claim 25, further comprising:

means for communicating with the second wireless node using the first set of common resources or the second set of partitioned resources.

27. The apparatus of claim 25, further comprising:

means for receiving a message, wherein identifying the first set of common resources is based at least in part on the received message.

28. The apparatus of claim 27, wherein the message is received from a central scheduler function of a core network.

29. The apparatus of claim 27, wherein the message is received from a neighboring wireless node of the wireless backhaul communication network.

30. The apparatus of claim 27, wherein the message identifying the first set of common resources comprises a minimum system information (minSI) message, a Master Information Block (MIB) message, a System Information Block (SIB) message, an upper layer message, a synchronization signal, a reference signal, a Radio Resource Control (RRC) message, or any combination thereof.

31. The apparatus of claim 25, further comprising:

means for transmitting a message to a neighboring wireless node identifying at least a portion of the first set of common resources.

32. The apparatus of claim 25, further comprising:

means for receiving a message, wherein identifying a subset of resources of the second partitioned set of resources is based at least in part on the received message.

33. The apparatus of claim 32, wherein the message is received from a central scheduler function of a core network.

34. The apparatus of claim 32, wherein the message is received from a neighboring wireless node of the wireless backhaul communication network.

35. The apparatus of claim 32, wherein the message identifying the subset of resources of the second set of partitioned resources comprises a minimum system information (minSI) message, an upper layer message, a Master Information Block (MIB) message, a System Information Block (SIB) message, a synchronization signal, a reference signal, a Radio Resource Control (RRC) message, or any combination thereof.

36. The apparatus of claim 25, further comprising:

means for transmitting a message to a neighboring wireless node identifying at least a portion of a subset of resources of the second partitioned set of resources.

37. The apparatus of claim 25, further comprising:

means for identifying a subset of resources of the first common set of resources and the second partitioned set of resources based at least in part on using information stored by the first wireless node.

38. The apparatus of claim 25, further comprising:

means for performing an access procedure with at least one other wireless node of the wireless backhaul communication network using the first set of common resources.

39. An apparatus for wireless communication, comprising:

a processor;

a memory in electronic communication with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

establishing a wireless connection between a first wireless node and a second wireless node in a wireless backhaul communication network;

identifying a first set of common resources for use in at least one of access communications or backhaul communications, wherein the first set of common resources are allocated for common use by wireless nodes of the wireless backhaul communications network; and

identifying a second set of partitioned resources available for at least one of access communications or backhaul communications, the second set partitioned into a plurality of subsets each allocated for use by a selected subset of one or more wireless nodes of the wireless backhaul communication network.

40. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor for:

establishing a wireless connection between a first wireless node and a second wireless node in a wireless backhaul communication network;

identifying a first set of common resources for use in at least one of access communications or backhaul communications, wherein the first set of common resources are allocated for common use by wireless nodes of the wireless backhaul communications network; and

identifying a second set of partitioned resources available for at least one of access communications or backhaul communications, the second set partitioned into a plurality of subsets each allocated for use by a selected subset of one or more wireless nodes of the wireless backhaul communication network.

Background

The following relates generally to wireless communications and more particularly to resource partitioning in a wireless backhaul network.

Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be able to support communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, and Orthogonal Frequency Division Multiple Access (OFDMA) systems (e.g., Long Term Evolution (LTE) systems or New Radio (NR) systems). A wireless multiple-access communication system may include several base stations or access network nodes, each supporting communication for multiple communication devices simultaneously, which may otherwise be referred to as User Equipment (UE).

Wireless communication systems may rely on a backhaul network to exchange information between nodes (e.g., between base stations and/or between a base station and a core network). Some backhaul networks may be wired, may be wireless, or may include a mix of wired and wireless links. The backhaul network may be used to communicate user plane traffic and/or control plane traffic. A wireless backhaul network may include some or all wireless nodes (e.g., base stations and/or UEs) configured with Access Node Functions (ANFs) and/or UE functions (UEFs) to control, monitor, or otherwise manage aspects of the wireless backhaul network. Such wireless backhaul networks can include different sets of resources (e.g., any one or combination of time, frequency, space, code, etc. resources) allocated to different nodes. For example, a first subset of the set of resources may be allocated to a first subset of nodes of the wireless backhaul network, while a second subset of resources may be allocated to a second subset of nodes. Partitioning resources in this manner may minimize interference, but may be costly with respect to such resources and/or may minimize nodes that are capable of communicating with each other. This may delay traffic between such nodes.

SUMMARY

The described technology relates to improved methods, systems, devices or apparatuses that support resource partitioning in a wireless backhaul network. In general, the described techniques provide for allocating a set of resources for common use among nodes of a wireless backhaul network. For example, a common set of resources may be used for backhaul communications, access network communications, and so on. Examples of communications that may use a common set of resources may include, but are not limited to, synchronization signals/channels, Random Access Channel (RACH) messages (e.g., RACH message 1, message 2, message 3, and/or message 4), system information messages (e.g., Master Information Block (MIB), System Information Blocks (SIBs), minimum system information (minSI), etc.), and/or reference signal transmissions. The set of common resources may be different from the partitioned resources used by the subset of nodes of the wireless backhaul network. The set of common resources may be dynamically determined (e.g., by node(s) of the wireless backhaul network) and/or may be determined by a central scheduler function (e.g., core network), and/or may be preconfigured or otherwise known a priori by the nodes.

A method of wireless communication is described. The method can comprise the following steps: establishing a wireless connection between a first wireless node and a second wireless node in a wireless backhaul communication network; identifying a first set of common resources for use in at least one of access communications or backhaul communications, wherein the first set of common resources are allocated for common use by wireless nodes of a wireless backhaul communications network; and identifying a second set of partitioned resources available for at least one of access communications or backhaul communications, the second set partitioned into a plurality of subsets each allocated for use by a selected subset of one or more wireless nodes of the wireless backhaul communication network.

An apparatus for wireless communication is described. The apparatus may include: means for establishing a wireless connection between a first wireless node and a second wireless node in a wireless backhaul communication network; means for identifying a first set of common resources for use in at least one of access communications or backhaul communications, wherein the first set of common resources are allocated for common use by wireless nodes of a wireless backhaul communication network; and means for identifying a second set of partitioned resources available for at least one of access communications or backhaul communications, the second set partitioned into a plurality of subsets each allocated for use by a selected subset of one or more wireless nodes of the wireless backhaul communication network.

Another apparatus for wireless communication is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are operable to cause the processor to: establishing a wireless connection between a first wireless node and a second wireless node in a wireless backhaul communication network; identifying a first set of common resources for use in at least one of access communications or backhaul communications, wherein the first set of common resources are allocated for common use by wireless nodes of a wireless backhaul communications network; and identifying a second set of partitioned resources available for at least one of access communications or backhaul communications, the second set partitioned into a plurality of subsets each allocated for use by a selected subset of one or more wireless nodes of the wireless backhaul communication network.

A non-transitory computer-readable medium for wireless communication is described. The non-transitory computer-readable medium may include instructions operable to cause a processor to: establishing a wireless connection between a first wireless node and a second wireless node in a wireless backhaul communication network; identifying a first set of common resources for use in at least one of access communications or backhaul communications, wherein the first set of common resources are allocated for common use by wireless nodes of a wireless backhaul communications network; and identifying a second set of partitioned resources available for at least one of access communications or backhaul communications, the second set partitioned into a plurality of subsets each allocated for use by a selected subset of one or more wireless nodes of the wireless backhaul communication network.

Some examples of the above methods, apparatus, and non-transitory computer-readable media may further include processes, features, means, or instructions for communicating with a second wireless node using the first set of common resources or the second set of partitioned resources.

Some examples of the above methods, apparatus, and non-transitory computer-readable media may further include processes, features, means, or instructions for receiving a message, wherein identifying the first set of common resources may be based at least in part on the received message.

In some examples of the above methods, apparatus, and non-transitory computer-readable medium, the message may be received from a central scheduler function of the core network.

In some examples of the above methods, apparatus, and non-transitory computer-readable media, the message may be received from a neighboring wireless node of the wireless backhaul communication network.

In some examples of the above methods, apparatus, and non-transitory computer-readable media, the message identifying the first set of common resources comprises a minSI message, a MIB message, a SIB message, an upper layer message, a synchronization signal, a reference signal, a Radio Resource Control (RRC) message, or any combination thereof.

Some examples of the above methods, apparatus, and non-transitory computer-readable media may further include processes, features, means, or instructions for transmitting a message to a neighboring wireless node identifying at least a portion of the first set of common resources.

Some examples of the above methods, apparatus, and non-transitory computer-readable media may further include processes, features, means, or instructions for receiving a message, wherein identifying the subset of resources of the second partitioned set of resources may be based at least in part on the received message.

In some examples of the above methods, apparatus, and non-transitory computer-readable medium, the message may be received from a central scheduler function of the core network.

In some examples of the above methods, apparatus, and non-transitory computer-readable media, the message may be received from a neighboring wireless node of the wireless backhaul communication network.

In some examples of the above methods, apparatus, and non-transitory computer-readable media, the message identifying the resource subset of the second set of partitioned resources comprises a minisi message, a MIB message, a SIB message, an upper layer message, a synchronization signal, a reference signal, an RRC message, or any combination thereof.

Some examples of the above methods, apparatus, and non-transitory computer-readable media may further include processes, features, means, or instructions for transmitting a message to a neighboring wireless node identifying at least a portion of a subset of resources of the second partitioned set of resources.

Some examples of the above methods, apparatus, and non-transitory computer-readable media may further include processes, features, means, or instructions for identifying a subset of resources of the first common set of resources and the second partitioned set of resources based at least in part on using information stored by the first wireless node.

Some examples of the above methods, apparatus, and non-transitory computer-readable media may further include processes, features, means, or instructions for performing an access procedure with at least one other wireless node of the wireless backhaul communication network using the first set of common resources.

In some examples of the above methods, apparatus, and non-transitory computer-readable media, the access procedure comprises at least one of: a synchronization procedure, a random access procedure, a system information procedure, a reference signal procedure, a paging procedure, a discovery messaging procedure, a radio resource management procedure, a radio link management procedure, or any combination thereof. In some examples of the above methods, apparatus, and non-transitory computer-readable media, the paging procedure includes communicating on at least one of a control channel and/or a data channel.

In some examples of the above methods, apparatus, and non-transitory computer-readable media, the synchronization procedure comprises communicating a synchronization signal or communicating on a synchronization channel using at least a portion of a first set of common resources for access communications, backhaul communications, or a combination thereof.

In some examples of the above methods, devices, and non-transitory computer-readable media, the random access procedure includes communicating at least one of RACH message 1, RACH message 2, RACH message 3, or RACH message 4 using at least a portion of the first set of common resources for access communications, backhaul communications, or a combination thereof.

In some examples of the above methods, apparatus, and non-transitory computer-readable media, the system information procedure includes communicating at least one of a MIB, a SIB, a minisi, and/or a minimum system information Remaining (RMSI) using at least a portion of a first set of common resources for access communications, backhaul communications, or a combination thereof.

In some examples of the above methods, apparatus, and non-transitory computer-readable media, the reference signal procedure includes communicating at least one of a channel state information reference signal (CSI-RS), or a Positioning Reference Signal (PRS), or a Beamforming Reference Signal (BRS) using at least a portion of a first set of common resources for access communications, backhaul communications, or a combination thereof.

In some examples of the above-described methods, apparatus, and non-transitory computer-readable media, the wireless backhaul communication network comprises a millimeter wave (mmW) wireless communication network.

Some examples of the above-described methods, apparatus, and non-transitory computer-readable media may further include processes, features, means, or instructions for the first set of common resources or the second set of partitioned resources to include time division multiplexed resources, frequency division multiplexed resources, code division multiplexed resources, space division multiplexed resources, or any combination thereof.