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BR-112019003570-B1 - DETERMINATION OF CONTROL CHANNEL BANDWIDTH

BR112019003570B1BR 112019003570 B1BR112019003570 B1BR 112019003570B1BR-112019003570-B1

Abstract

The disclosure aspects relate to the determination of the bandwidth, frequencies, or a set of one or more sub-bands carrying a downlink control channel. In some instances, a set of one or more sub-bands carrying a downlink control channel may be determined based on a function of a predetermined reference resource location. The predetermined reference resource location may be a set of one or more sub-bands carrying one or more synchronization signals and a broadcast channel. Other aspects, modalities, and features are also claimed and described.

Inventors

  • Wanshi Chen
  • Yang Yang
  • Peter Ang
  • Chong Li
  • Hung Ly

Assignees

  • QUALCOMM INCORPORATED

Dates

Publication Date
20260317
Application Date
20170811
Priority Date
20170418

Claims (14)

  1. 1. Wireless communication method characterized by being between a scheduling entity and a scheduled entity over an air interface comprising a plurality of sub-bands, the method performed by the scheduled entity, the method comprising: identifying (1202) a predetermined reference resource; determining (1204, 1302, 1402, 1502) a set of one or more sub-bands from the plurality of sub-bands, the set of one or more sub-bands being different from the reference resource and carrying a downlink control channel, based on a function of a location of the predetermined reference resource (407, 904, 1004); and receiving (1206, 1404, 1504) the downlink control channel in the set of one or more sub-bands determined based on the function of the location of the predetermined reference resource (407, 904, 1004).
  2. 2. Method according to claim 1, characterized by the determination (1204, 1302, 1402, 1502) of the set of one or more sub-bands carrying the downlink control channel comprising applying a fixed frequency offset relative to the location of the predetermined reference feature (407, 904, 1004).
  3. 3. Method, according to claim 1, characterized by the determination (1204, 1302, 1402, 1502) of the set of one or more sub-bands that carries the downlink control channel comprising applying a frequency offset relative to the location of a predetermined reference resource, the frequency offset being implicitly derived from a parameter known to both the scheduling entity and the scheduled entity.
  4. 4. Method, according to claim 3, characterized in that the parameter is a time-varying parameter, causing the set of one or more sub-bands carrying the downlink control channel to vary over time.
  5. 5. Method, according to claim 3, characterized in that the parameter comprises a time-variable parameter and at least one of a cell-specific parameter or a zone-specific parameter, the method further comprising: deriving the frequency shift by applying a joint function of the time-variable parameter and the cell-specific parameter or the zone-specific parameter.
  6. 6. A method according to claim 5, characterized in that, when varying over time, the set of one or more sub-bands carrying the downlink control channel comprises at least one sub-band in each of a plurality of component carriers.
  7. 7. Method according to claim 1, characterized by further comprising receiving (1308) information on a resource corresponding to the location of a predetermined reference resource (407, 904, 1004) representing an explicit indication of a relation to the location of a predetermined reference resource (407, 904, 1004), wherein the determination (1204, 1302, 1402, 1502) of the set of one or more sub-bands carrying the downlink control channel comprises applying (1310) the explicit indication to the location of a predetermined reference resource (407, 904, 1004).
  8. 8. Equipment characterized by performing wireless communication with a scheduling entity over an air interface comprising a plurality of sub-bands, the equipment being a scheduling entity and comprising: means for identifying a predetermined reference resource; means for determining a set of one or more sub-bands from the plurality of sub-bands, the set of one or more sub-bands being different from the reference resource and carrying a downlink control channel, based on a function of a location of the predetermined reference resource (407, 904, 1004); and means for receiving the downlink control channel in the set of one or more sub-bands determined based on the function of the location of the predetermined reference resource (407, 904, 1004).
  9. 9. Equipment according to claim 8, characterized by means for determining the set of one or more sub-bands that carry the downlink control channel comprising means for applying a fixed frequency offset relative to the location of a predetermined reference feature.
  10. 10. Equipment according to claim 8, characterized by means for determining the set of one or more sub-bands that carry the downlink control channel comprising means for applying a frequency offset relative to the location of a predetermined reference resource, the frequency offset being implicitly derived from a parameter known to both the scheduling entity and the scheduled entity.
  11. 11. Equipment according to claim 10, characterized in that the parameter is a time-varying parameter, causing the set of one or more subbands carrying the downlink control channel to vary over time.
  12. 12. Equipment according to claim 10, characterized in that the parameter comprises a time-variable parameter and at least one of a cell-specific parameter or a zone-specific parameter, the means for determining further comprising: means for deriving the frequency shift by applying a joint function of the time-variable parameter and the cell-specific parameter or the zone-specific parameter.
  13. 13. Equipment according to claim 8, characterized by means for receiving comprising means for receiving information on a resource corresponding to the location of a predetermined reference resource representing an explicit indication of a relationship to the location of a predetermined reference resource, wherein the means for determining the set of one or more sub-bands that carry the downlink control channel comprise means for applying the explicit indication to the location of the predetermined reference resource.
  14. 14. Memory characterized by comprising instructions stored therein which, when executed, cause a computer to perform a method as defined in any one of claims 1 to 7.

Description

Cross-references to related deposit requests [0001] This application claims priority to and benefit of Provisional Patent Application No. 62/380,319, filed with the U.S. Patent and Trademark Office on Friday, August 26, 2016, and Non-Provisional Patent Application No. 15/490,851, filed with the U.S. Patent and Trademark Office on Tuesday, April 18, 2017, the entire contents of which are incorporated herein by reference as if presented in their entirety below and for all applicable purposes. TECHNICAL FIELD [0002] The technology discussed below generally refers to wireless communication systems and, more particularly, to the determination of bandwidth, frequencies, subcarriers or sub-bands allocated to control channels. INTRODUCTION [0003] When a wireless communication device acquires a connection to a telecommunications network, it is generally necessary for the device to make certain determinations about the nature of the network in order for the device to function on that network. Over time, a given wireless communication device may acquire these connections on a variety of different networks with a wide range of configurations, so these determinations may be made regularly. Thus, there is a desire for these processes to be as efficient as they are practical. [0004] As the demand for mobile broadband access continues to increase, research and development continues to advance wireless communication technologies, not only to meet the growing demand for mobile broadband access, but also to advance and improve the user experience with mobile communications. For example, the Third Generation Partnership Project (3GPP) is an organization that develops and maintains telecommunications standards for long-term evolution (LTE) fourth-generation (4G) networks. Recently, 3GPP initiated the development of a next-generation evolution of LTE, which generally corresponds to a fifth-generation (5G) network, as defined by the Next Generation Mobile Networks (NGMN) alliance. As it stands today, this 5G network may exhibit a greater degree of flexibility and scalability than LTE and is expected to support very diverse sets of requirements. Therefore, an efficient and flexible way for a device to determine various aspects of the network after acquisition is desired. A brief summary of some examples. [0005] The following presents a simplified summary of one or more aspects of the present revelation in order to provide a basic understanding of such aspects. This summary is not a comprehensive overview of all the contemplated features of the revelation, and is not intended to identify key or critical elements of all aspects of the revelation, nor to delineate the scope of any or all aspects of the revelation. Its sole purpose is to present some concepts of one or more aspects of the revelation in a simplified way as a prelude to the more detailed description that follows. [0006] In one example, a method for determining the bandwidth, frequencies, or a set of one or more sub-bands carrying one or more downlink control channels is disclosed. The method includes determining a set of one or more sub-bands carrying a downlink control channel, based on a function of a reference feature, or a predetermined reference feature location within an air interface. The predetermined reference feature location may be a set of one or more sub-bands carrying one or more synchronization signals such as a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) and a broadcast channel such as a broadcast channel (PBCH). [0007] In another aspect, wireless communication equipment is provided. The equipment includes a processor, a transceiver communicatively coupled to the processor, and a memory communicatively coupled to the processor. The processor is configured to determine a set of one or more sub-bands that carry a downlink control channel, based on a function of a predetermined reference resource location. [0008] In yet another aspect, a non-transient computer-readable medium is provided that stores computer-executable code. The non-transient computer-readable medium that stores code to cause a computer to determine a set of one or more sub-bands that carry a downlink control channel, based on a function of a predetermined reference resource location. [0009] These and other aspects of the invention will become more fully understood after a review of the detailed description that follows. Other aspects, features, and embodiments of the present invention will be apparent to those skilled in the art after reviewing the following description of the specific embodiments, exemplary embodiments of the present invention, together with the accompanying figures. Although the features of the present invention may be discussed in relation to certain embodiments and figures below, all embodiments of the present invention may include one or more of the advantageous features discussed herein. In other words, while one or more embodime